Commit 1574a29f8e ("checkpatch: allow multiple const * types") claims to
support repetition of pattern "const *", but it actually allows only one
extra instance.
Check the following lines
int a(char const * const x[]);
int b(char const * const *x);
int c(char const * const * const x[]);
int d(char const * const * const *x);
with command
./scripts/checkpatch.pl --show-types -f filename
to find that only the first line passes the test, while a warning
is triggered by the other 3 lines:
WARNING:FUNCTION_ARGUMENTS: function definition argument
'char const * const' should also have an identifier name
The reason is that the pattern match halts at the second asterisk in the
line, thus the remaining text starting with asterisk fails to match a
valid name for a variable.
Fixed by replacing "?" (Match 1 or 0 times) with "{0,4}" (Match no more
than 4 times) in the regular expression. Fix also the similar test for
types in unusual order.
Fixes: 1574a29f8e ("checkpatch: allow multiple const * types")
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Link: http://lkml.kernel.org/r/20200122163852.124417-1-borneo.antonio@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix spelling of "concatenation".
Don't use tab after space in indentation.
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Link: http://lkml.kernel.org/r/20200122163852.124417-2-borneo.antonio@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
commit 294f69e662 ("compiler_attributes.h: Add 'fallthrough' pseudo
keyword for switch/case use") added the pseudo keyword so add a test for
it to checkpatch.
Warn on a patch or use --strict for files.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/8b6c1b9031ab9f3cdebada06b8d46467f1492d68.camel@perches.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In order to support the get-lore-mbox.py tool described in [1], I ran:
git format-patch --base=<commit> --cover-letter <revrange>
... which generated a "base-commit: <commit-hash>" tag at the end of the
cover letter. However, checkpatch.pl generated an error upon encounting
"base-commit:" in the cover letter:
"ERROR: Please use git commit description style..."
... because it found the "commit" keyword, and failed to recognize that
it was part of the "base-commit" phrase, and as such, should not be
subjected to the same commit description style rules.
Update checkpatch.pl to include a special case for "base-commit:" (at the
start of the line, possibly with some leading whitespace) so that that tag
no longer generates a checkpatch error.
[1] https://lwn.net/Articles/811528/ "Better tools for kernel
developers"
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: http://lkml.kernel.org/r/20200213055004.69235-2-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This adds a warning when a YAML file is lacking a SPDX header on first
line, or it uses incorrect commenting style.
Currently the only YAML files in the tree are Devicetree binding
documents.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Rob Herring <robh@kernel.org>
Link: http://lkml.kernel.org/r/20200129123356.388669-1-lkundrak@v3.sk
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
About 2% of the last 100K commits have email addresses that include an
RFC2822 compliant comment like:
Peter Zijlstra (Intel) <peterz@infradead.org>
checkpatch currently does a comparison of the complete name and address to
the submitted author to determine if the author has signed-off and emits a
warning if the exact email names and addresses do not match.
Unfortunately, the author email address can be written without the comment
like:
Peter Zijlstra <peterz@infradead.org>
Add logic to compare the comment stripped email addresses to avoid this
warning.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/ebaa2f7c8f94e25520981945cddcc1982e70e072.camel@perches.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Delete nodes in case of:
* node is null, without any property and children node
* node with 'status' property but not "okay" or "ok"
Change-Id: Ic7d2ba1cb60350c21fa6a46222c20870c74359d4
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
On modules with no executable code, LLVM generates a __cfi_check stub,
but won't align it to page size as expected. This change ensures the
function is at the beginning of the .text section and correctly aligned
for the CFI shadow.
Bug: 148458318
Change-Id: I85ea31fa851bc23988f649b021b3ac7e9d9dcb38
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
On modules with no executable code, LLVM generates a __cfi_check stub,
but won't align it to page size as expected. This change ensures the
function is at the beginning of the .text section and correctly aligned
for the CFI shadow.
Bug: 148458318
Change-Id: I85ea31fa851bc23988f649b021b3ac7e9d9dcb38
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
clang's linker can not handle this at the moment, so revert it to keep
the x86 build working properly.
Bug: 153164546
Cc: <ndesaulniers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I87c587398065d91f1e9be8a317b755d1f7963c95
In a quest to divide up the 5.7-rc1 merge chunks into reviewable pieces.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2e5960415348c06e8f10e10cbefb3ee5c3745e73
Here is the big set of char/misc/other driver patches for 5.7-rc1.
Lots of things in here, and it's later than expected due to some reverts
to resolve some reported issues. All is now clean with no reported
problems in linux-next.
Included in here is:
- interconnect updates
- mei driver updates
- uio updates
- nvmem driver updates
- soundwire updates
- binderfs updates
- coresight updates
- habanalabs updates
- mhi new bus type and core
- extcon driver updates
- some Kconfig cleanups
- other small misc driver cleanups and updates
As mentioned, all have been in linux-next for a while, and with the last
two reverts, all is calm and good.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of char/misc/other driver patches for 5.7-rc1.
Lots of things in here, and it's later than expected due to some
reverts to resolve some reported issues. All is now clean with no
reported problems in linux-next.
Included in here is:
- interconnect updates
- mei driver updates
- uio updates
- nvmem driver updates
- soundwire updates
- binderfs updates
- coresight updates
- habanalabs updates
- mhi new bus type and core
- extcon driver updates
- some Kconfig cleanups
- other small misc driver cleanups and updates
As mentioned, all have been in linux-next for a while, and with the
last two reverts, all is calm and good"
* tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (174 commits)
Revert "driver core: platform: Initialize dma_parms for platform devices"
Revert "amba: Initialize dma_parms for amba devices"
amba: Initialize dma_parms for amba devices
driver core: platform: Initialize dma_parms for platform devices
bus: mhi: core: Drop the references to mhi_dev in mhi_destroy_device()
bus: mhi: core: Initialize bhie field in mhi_cntrl for RDDM capture
bus: mhi: core: Add support for reading MHI info from device
misc: rtsx: set correct pcr_ops for rts522A
speakup: misc: Use dynamic minor numbers for speakup devices
mei: me: add cedar fork device ids
coresight: do not use the BIT() macro in the UAPI header
Documentation: provide IBM contacts for embargoed hardware
nvmem: core: remove nvmem_sysfs_get_groups()
nvmem: core: use is_bin_visible for permissions
nvmem: core: use device_register and device_unregister
nvmem: core: add root_only member to nvmem device struct
extcon: axp288: Add wakeup support
extcon: Mark extcon_get_edev_name() function as exported symbol
extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFER
dt-bindings: extcon: usbc-cros-ec: convert extcon-usbc-cros-ec.txt to yaml format
...
Here are 3 SPDX patches for 5.7-rc1.
One fixes up the SPDX tag for a single driver, while the other two go
through the tree and add SPDX tags for all of the .gitignore files as
needed.
Nothing too complex, but you will get a merge conflict with your current
tree, that should be trivial to handle (one file modified by two things,
one file deleted.)
All 3 of these have been in linux-next for a while, with no reported
issues other than the merge conflict.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX updates from Greg KH:
"Here are three SPDX patches for 5.7-rc1.
One fixes up the SPDX tag for a single driver, while the other two go
through the tree and add SPDX tags for all of the .gitignore files as
needed.
Nothing too complex, but you will get a merge conflict with your
current tree, that should be trivial to handle (one file modified by
two things, one file deleted.)
All three of these have been in linux-next for a while, with no
reported issues other than the merge conflict"
* tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
ASoC: MT6660: make spdxcheck.py happy
.gitignore: add SPDX License Identifier
.gitignore: remove too obvious comments
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Merge 4.19.114 into android-4.19
Changes in 4.19.114
mmc: core: Allow host controllers to require R1B for CMD6
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for erase/trim/discard
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for eMMC sleep command
mmc: sdhci-omap: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
Revert "drm/dp_mst: Skip validating ports during destruction, just ref"
geneve: move debug check after netdev unregister
hsr: fix general protection fault in hsr_addr_is_self()
macsec: restrict to ethernet devices
mlxsw: spectrum_mr: Fix list iteration in error path
net: cbs: Fix software cbs to consider packet sending time
net: dsa: Fix duplicate frames flooded by learning
net: mvneta: Fix the case where the last poll did not process all rx
net/packet: tpacket_rcv: avoid a producer race condition
net: qmi_wwan: add support for ASKEY WWHC050
net_sched: cls_route: remove the right filter from hashtable
net_sched: keep alloc_hash updated after hash allocation
net: stmmac: dwmac-rk: fix error path in rk_gmac_probe
NFC: fdp: Fix a signedness bug in fdp_nci_send_patch()
slcan: not call free_netdev before rtnl_unlock in slcan_open
bnxt_en: fix memory leaks in bnxt_dcbnl_ieee_getets()
bnxt_en: Reset rings if ring reservation fails during open()
net: ip_gre: Separate ERSPAN newlink / changelink callbacks
net: ip_gre: Accept IFLA_INFO_DATA-less configuration
net: dsa: mt7530: Change the LINK bit to reflect the link status
net: phy: mdio-mux-bcm-iproc: check clk_prepare_enable() return value
r8169: re-enable MSI on RTL8168c
tcp: repair: fix TCP_QUEUE_SEQ implementation
vxlan: check return value of gro_cells_init()
hsr: use rcu_read_lock() in hsr_get_node_{list/status}()
hsr: add restart routine into hsr_get_node_list()
hsr: set .netnsok flag
cgroup-v1: cgroup_pidlist_next should update position index
nfs: add minor version to nfs_server_key for fscache
cpupower: avoid multiple definition with gcc -fno-common
drivers/of/of_mdio.c:fix of_mdiobus_register()
cgroup1: don't call release_agent when it is ""
dt-bindings: net: FMan erratum A050385
arm64: dts: ls1043a: FMan erratum A050385
fsl/fman: detect FMan erratum A050385
s390/qeth: handle error when backing RX buffer
scsi: ipr: Fix softlockup when rescanning devices in petitboot
mac80211: Do not send mesh HWMP PREQ if HWMP is disabled
dpaa_eth: Remove unnecessary boolean expression in dpaa_get_headroom
sxgbe: Fix off by one in samsung driver strncpy size arg
ftrace/x86: Anotate text_mutex split between ftrace_arch_code_modify_post_process() and ftrace_arch_code_modify_prepare()
i2c: hix5hd2: add missed clk_disable_unprepare in remove
Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
Input: synaptics - enable RMI on HP Envy 13-ad105ng
Input: avoid BIT() macro usage in the serio.h UAPI header
ceph: check POOL_FLAG_FULL/NEARFULL in addition to OSDMAP_FULL/NEARFULL
ARM: dts: dra7: Add bus_dma_limit for L3 bus
ARM: dts: omap5: Add bus_dma_limit for L3 bus
perf probe: Do not depend on dwfl_module_addrsym()
tools: Let O= makes handle a relative path with -C option
scripts/dtc: Remove redundant YYLOC global declaration
scsi: sd: Fix optimal I/O size for devices that change reported values
nl80211: fix NL80211_ATTR_CHANNEL_WIDTH attribute type
mac80211: mark station unauthorized before key removal
gpiolib: acpi: Correct comment for HP x2 10 honor_wakeup quirk
gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 BYT + AXP288 model
RDMA/core: Ensure security pkey modify is not lost
genirq: Fix reference leaks on irq affinity notifiers
xfrm: handle NETDEV_UNREGISTER for xfrm device
vti[6]: fix packet tx through bpf_redirect() in XinY cases
RDMA/mlx5: Block delay drop to unprivileged users
xfrm: fix uctx len check in verify_sec_ctx_len
xfrm: add the missing verify_sec_ctx_len check in xfrm_add_acquire
xfrm: policy: Fix doulbe free in xfrm_policy_timer
afs: Fix some tracing details
netfilter: flowtable: reload ip{v6}h in nf_flow_tuple_ip{v6}
netfilter: nft_fwd_netdev: validate family and chain type
bpf/btf: Fix BTF verification of enum members in struct/union
vti6: Fix memory leak of skb if input policy check fails
Revert "r8169: check that Realtek PHY driver module is loaded"
mac80211: add option for setting control flags
mac80211: set IEEE80211_TX_CTRL_PORT_CTRL_PROTO for nl80211 TX
USB: serial: option: add support for ASKEY WWHC050
USB: serial: option: add BroadMobi BM806U
USB: serial: option: add Wistron Neweb D19Q1
USB: cdc-acm: restore capability check order
USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback
usb: musb: fix crash with highmen PIO and usbmon
media: flexcop-usb: fix endpoint sanity check
media: usbtv: fix control-message timeouts
staging: rtl8188eu: Add ASUS USB-N10 Nano B1 to device table
staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb
staging: wlan-ng: fix use-after-free Read in hfa384x_usbin_callback
ahci: Add Intel Comet Lake H RAID PCI ID
libfs: fix infoleak in simple_attr_read()
media: ov519: add missing endpoint sanity checks
media: dib0700: fix rc endpoint lookup
media: stv06xx: add missing descriptor sanity checks
media: xirlink_cit: add missing descriptor sanity checks
mac80211: Check port authorization in the ieee80211_tx_dequeue() case
mac80211: fix authentication with iwlwifi/mvm
vt: selection, introduce vc_is_sel
vt: ioctl, switch VT_IS_IN_USE and VT_BUSY to inlines
vt: switch vt_dont_switch to bool
vt: vt_ioctl: remove unnecessary console allocation checks
vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
vt: vt_ioctl: fix use-after-free in vt_in_use()
platform/x86: pmc_atom: Add Lex 2I385SW to critclk_systems DMI table
bpf: Explicitly memset the bpf_attr structure
bpf: Explicitly memset some bpf info structures declared on the stack
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model
net: ks8851-ml: Fix IO operations, again
arm64: alternative: fix build with clang integrated assembler
perf map: Fix off by one in strncpy() size argument
ARM: dts: oxnas: Fix clear-mask property
ARM: bcm2835-rpi-zero-w: Add missing pinctrl name
ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage
ARM: dts: N900: fix onenand timings
arm64: dts: ls1043a-rdb: correct RGMII delay mode to rgmii-id
arm64: dts: ls1046ardb: set RGMII interfaces to RGMII_ID mode
Linux 4.19.114
Change-Id: Icc165d2e49aba750e1b5a8856d9774c149e59ce7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
- Unit test for overlays with GPIO hogs
- Improve dma-ranges parsing to handle dma-ranges with multiple entries
- Update dtc to upstream version v1.6.0-2-g87a656ae5ff9
- Improve overlay error reporting
- Device link support for power-domains and hwlocks bindings
- Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida,
PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and
ITE Tech
- Add deprecated Marvell vendor prefix 'mrvl'
- A bunch of binding conversions to DT schema continues. Of note, the
common serial and USB connector bindings are converted.
- Add more Arm CPU compatibles
- Drop Mark Rutland as DT maintainer :(
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Merge tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Unit test for overlays with GPIO hogs
- Improve dma-ranges parsing to handle dma-ranges with multiple entries
- Update dtc to upstream version v1.6.0-2-g87a656ae5ff9
- Improve overlay error reporting
- Device link support for power-domains and hwlocks bindings
- Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida,
PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and
ITE Tech
- Add deprecated Marvell vendor prefix 'mrvl'
- A bunch of binding conversions to DT schema continues. Of note, the
common serial and USB connector bindings are converted.
- Add more Arm CPU compatibles
- Drop Mark Rutland as DT maintainer :(
* tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (106 commits)
MAINTAINERS: drop an old reference to stm32 pwm timers doc
MAINTAINERS: dt: update etnaviv file reference
dt-bindings: usb: dwc2: fix bindings for amlogic, meson-gxbb-usb
dt-bindings: uniphier-system-bus: fix warning in the example
dt-bindings: display: meson-vpu: fix indentation of reg-names' "items"
dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints
dt-bindings: power: Fix example for power-domain
dt-bindings: arm: Add some constraints for PSCI nodes
of: some unittest overlays not untracked
of: gpio unittest kfree() wrong object
dt-bindings: phy: convert phy-rockchip-inno-usb2 bindings to yaml
dt-bindings: serial: sh-sci: Convert to json-schema
dt-bindings: serial: Document serialN aliases
dt-bindings: thermal: tsens: Set 'additionalProperties: false'
dt-bindings: thermal: tsens: Fix nvmem-cell-names schema
dt-bindings: vendor-prefixes: Add Beacon vendor prefix
dt-bindings: vendor-prefixes: Add Topwise
of: of_private.h: Replace zero-length array with flexible-array member
docs: dt: fix a broken reference to input.yaml
docs: dt: fix references to ap806-system-controller.txt
...
update changing all our txt files to rst ones. Excluding that, we
have the usual driver updates (qla2xxx, ufs, lpfc, zfcp, ibmvfc,
pm80xx, aacraid), a treewide update for scnprintf and some other minor
updates. The major core update is Hannes moving functions out of the
aacraid driver and into the core.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series has a huge amount of churn because it pulls in Mauro's doc
update changing all our txt files to rst ones.
Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc,
zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and
some other minor updates.
The major core change is Hannes moving functions out of the aacraid
driver and into the core"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits)
scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code
scsi: ufs: Do not rely on prefetched data
scsi: dc395x: remove dc395x_bios_param
scsi: libiscsi: Fix error count for active session
scsi: hpsa: correct race condition in offload enabled
scsi: message: fusion: Replace zero-length array with flexible-array member
scsi: qedi: Add PCI shutdown handler support
scsi: qedi: Add MFW error recovery process
scsi: ufs: Enable block layer runtime PM for well-known logical units
scsi: ufs-qcom: Override devfreq parameters
scsi: ufshcd: Let vendor override devfreq parameters
scsi: ufshcd: Update the set frequency to devfreq
scsi: ufs: Resume ufs host before accessing ufs device
scsi: ufs-mediatek: customize the delay for enabling host
scsi: ufs: make HCE polling more compact to improve initialization latency
scsi: ufs: allow custom delay prior to host enabling
scsi: ufs-mediatek: use common delay function
scsi: ufs: introduce common and flexible delay function
scsi: ufs: use an enum for host capabilities
scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc()
...
Here are some of the more common spelling mistakes and typos that I've
found while fixing up spelling mistakes in the kernel since November 2019
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Link: http://lkml.kernel.org/r/20200313174946.228216-1-colin.king@canonical.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There are a few cases in the tree where "sysfs" is misspelled as "syfs".
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.ne>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Xiong <xndchn@gmail.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Chris Paterson <chris.paterson2@renesas.com>
Cc: Luca Ceresoli <luca@lucaceresoli.net>
Link: http://lkml.kernel.org/r/20200218152010.27349-1-j.neuschaefer@gmx.net
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
commit e33a814e77 upstream.
gcc 10 will default to -fno-common, which causes this error at link
time:
(.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
This is because both dtc-lexer as well as dtc-parser define the same
global symbol yyloc. Before with -fcommon those were merged into one
defintion. The proper solution would be to to mark this as "extern",
however that leads to:
dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
26 | extern YYLTYPE yylloc;
| ^~~~~~
In file included from dtc-lexer.l:24:
dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
127 | extern YYLTYPE yylloc;
| ^~~~~~
cc1: all warnings being treated as errors
which means the declaration is completely redundant and can just be
dropped.
Signed-off-by: Dirk Mueller <dmueller@suse.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[robh: cherry-pick from upstream]
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull networking updates from David Miller:
"Highlights:
1) Fix the iwlwifi regression, from Johannes Berg.
2) Support BSS coloring and 802.11 encapsulation offloading in
hardware, from John Crispin.
3) Fix some potential Spectre issues in qtnfmac, from Sergey
Matyukevich.
4) Add TTL decrement action to openvswitch, from Matteo Croce.
5) Allow paralleization through flow_action setup by not taking the
RTNL mutex, from Vlad Buslov.
6) A lot of zero-length array to flexible-array conversions, from
Gustavo A. R. Silva.
7) Align XDP statistics names across several drivers for consistency,
from Lorenzo Bianconi.
8) Add various pieces of infrastructure for offloading conntrack, and
make use of it in mlx5 driver, from Paul Blakey.
9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.
10) Lots of parallelization improvements during configuration changes
in mlxsw driver, from Ido Schimmel.
11) Add support to devlink for generic packet traps, which report
packets dropped during ACL processing. And use them in mlxsw
driver. From Jiri Pirko.
12) Support bcmgenet on ACPI, from Jeremy Linton.
13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
Starovoitov, and your's truly.
14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.
15) Fix sysfs permissions when network devices change namespaces, from
Christian Brauner.
16) Add a flags element to ethtool_ops so that drivers can more simply
indicate which coalescing parameters they actually support, and
therefore the generic layer can validate the user's ethtool
request. Use this in all drivers, from Jakub Kicinski.
17) Offload FIFO qdisc in mlxsw, from Petr Machata.
18) Support UDP sockets in sockmap, from Lorenz Bauer.
19) Fix stretch ACK bugs in several TCP congestion control modules,
from Pengcheng Yang.
20) Support virtual functiosn in octeontx2 driver, from Tomasz
Duszynski.
21) Add region operations for devlink and use it in ice driver to dump
NVM contents, from Jacob Keller.
22) Add support for hw offload of MACSEC, from Antoine Tenart.
23) Add support for BPF programs that can be attached to LSM hooks,
from KP Singh.
24) Support for multiple paths, path managers, and counters in MPTCP.
From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
and others.
25) More progress on adding the netlink interface to ethtool, from
Michal Kubecek"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
cxgb4/chcr: nic-tls stats in ethtool
net: dsa: fix oops while probing Marvell DSA switches
net/bpfilter: remove superfluous testing message
net: macb: Fix handling of fixed-link node
net: dsa: ksz: Select KSZ protocol tag
netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
net: stmmac: create dwmac-intel.c to contain all Intel platform
net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
net: dsa: bcm_sf2: Add support for matching VLAN TCI
net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
net: dsa: bcm_sf2: Disable learning for ASP port
net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
net: dsa: b53: Restore VLAN entries upon (re)configuration
net: dsa: bcm_sf2: Fix overflow checks
hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
...
[Build system]
- add CONFIG_UNUSED_KSYMS_WHITELIST, which will be useful to define
a fixed set of export symbols for Generic Kernel Image (GKI)
- allow to run 'make dt_binding_check' without .config
- use full schema for checking DT examples in *.yaml files
- make modpost fail for missing MODULE_IMPORT_NS(), which makes more
sense because we know the produced modules are never loadable
- Remove unused 'AS' variable
[Kconfig]
- sanitize DEFCONFIG_LIST, and remove ARCH_DEFCONFIG from Kconfig files
- relax the 'imply' behavior so that symbols implied by y can become m
- make 'imply' obey 'depends on' in order to make 'imply' really weak
[Misc]
- add documentation on building the kernel with Clang/LLVM
- revive __HAVE_ARCH_STRLEN for 32bit sparc to use optimized strlen()
- fix warning from deb-pkg builds when CONFIG_DEBUG_INFO=n
- various script and Makefile cleanups
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Merge tag 'kbuild-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
"Build system:
- add CONFIG_UNUSED_KSYMS_WHITELIST, which will be useful to define a
fixed set of export symbols for Generic Kernel Image (GKI)
- allow to run 'make dt_binding_check' without .config
- use full schema for checking DT examples in *.yaml files
- make modpost fail for missing MODULE_IMPORT_NS(), which makes more
sense because we know the produced modules are never loadable
- Remove unused 'AS' variable
Kconfig:
- sanitize DEFCONFIG_LIST, and remove ARCH_DEFCONFIG from Kconfig
files
- relax the 'imply' behavior so that symbols implied by 'y' can
become 'm'
- make 'imply' obey 'depends on' in order to make 'imply' really weak
Misc:
- add documentation on building the kernel with Clang/LLVM
- revive __HAVE_ARCH_STRLEN for 32bit sparc to use optimized strlen()
- fix warning from deb-pkg builds when CONFIG_DEBUG_INFO=n
- various script and Makefile cleanups"
* tag 'kbuild-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
Makefile: Update kselftest help information
kbuild: deb-pkg: fix warning when CONFIG_DEBUG_INFO is unset
kbuild: add outputmakefile to no-dot-config-targets
kbuild: remove AS variable
net: wan: wanxl: refactor the firmware rebuild rule
net: wan: wanxl: use $(M68KCC) instead of $(M68KAS) for rebuilding firmware
net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware
kbuild: add comment about grouped target
kbuild: add -Wall to KBUILD_HOSTCXXFLAGS
kconfig: remove unused variable in qconf.cc
sparc: revive __HAVE_ARCH_STRLEN for 32bit sparc
kbuild: refactor Makefile.dtbinst more
kbuild: compute the dtbs_install destination more simply
Makefile: disallow data races on gcc-10 as well
kconfig: make 'imply' obey the direct dependency
kconfig: allow symbols implied by y to become m
net: drop_monitor: use IS_REACHABLE() to guard net_dm_hw_report()
modpost: return error if module is missing ns imports and MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=n
modpost: rework and consolidate logging interface
kbuild: allow to run dt_binding_check without kernel configuration
...
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Merge tag 'selinux-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux updates from Paul Moore:
"We've got twenty SELinux patches for the v5.7 merge window, the
highlights are below:
- Deprecate setting /sys/fs/selinux/checkreqprot to 1.
This flag was originally created to deal with legacy userspace and
the READ_IMPLIES_EXEC personality flag. We changed the default from
1 to 0 back in Linux v4.4 and now we are taking the next step of
deprecating it, at some point in the future we will take the final
step of rejecting 1.
- Allow kernfs symlinks to inherit the SELinux label of the parent
directory. In order to preserve backwards compatibility this is
protected by the genfs_seclabel_symlinks SELinux policy capability.
- Optimize how we store filename transitions in the kernel, resulting
in some significant improvements to policy load times.
- Do a better job calculating our internal hash table sizes which
resulted in additional policy load improvements and likely general
SELinux performance improvements as well.
- Remove the unused initial SIDs (labels) and improve how we handle
initial SIDs.
- Enable per-file labeling for the bpf filesystem.
- Ensure that we properly label NFS v4.2 filesystems to avoid a
temporary unlabeled condition.
- Add some missing XFS quota command types to the SELinux quota
access controls.
- Fix a problem where we were not updating the seq_file position
index correctly in selinuxfs.
- We consolidate some duplicated code into helper functions.
- A number of list to array conversions.
- Update Stephen Smalley's email address in MAINTAINERS"
* tag 'selinux-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: clean up indentation issue with assignment statement
NFS: Ensure security label is set for root inode
MAINTAINERS: Update my email address
selinux: avtab_init() and cond_policydb_init() return void
selinux: clean up error path in policydb_init()
selinux: remove unused initial SIDs and improve handling
selinux: reduce the use of hard-coded hash sizes
selinux: Add xfs quota command types
selinux: optimize storage of filename transitions
selinux: factor out loop body from filename_trans_read()
security: selinux: allow per-file labeling for bpffs
selinux: generalize evaluate_cond_node()
selinux: convert cond_expr to array
selinux: convert cond_av_list to array
selinux: convert cond_list to array
selinux: sel_avc_get_stat_idx should increase position index
selinux: allow kernfs symlinks to inherit parent directory context
selinux: simplify evaluate_cond_node()
Documentation,selinux: deprecate setting checkreqprot to 1
selinux: move status variables out of selinux_ss
- In-kernel Pointer Authentication support (previously only offered to
user space).
- ARM Activity Monitors (AMU) extension support allowing better CPU
utilisation numbers for the scheduler (frequency invariance).
- Memory hot-remove support for arm64.
- Lots of asm annotations (SYM_*) in preparation for the in-kernel
Branch Target Identification (BTI) support.
- arm64 perf updates: ARMv8.5-PMU 64-bit counters, refactoring the PMU
init callbacks, support for new DT compatibles.
- IPv6 header checksum optimisation.
- Fixes: SDEI (software delegated exception interface) double-lock on
hibernate with shared events.
- Minor clean-ups and refactoring: cpu_ops accessor, cpu_do_switch_mm()
converted to C, cpufeature finalisation helper.
- sys_mremap() comment explaining the asymmetric address untagging
behaviour.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"The bulk is in-kernel pointer authentication, activity monitors and
lots of asm symbol annotations. I also queued the sys_mremap() patch
commenting the asymmetry in the address untagging.
Summary:
- In-kernel Pointer Authentication support (previously only offered
to user space).
- ARM Activity Monitors (AMU) extension support allowing better CPU
utilisation numbers for the scheduler (frequency invariance).
- Memory hot-remove support for arm64.
- Lots of asm annotations (SYM_*) in preparation for the in-kernel
Branch Target Identification (BTI) support.
- arm64 perf updates: ARMv8.5-PMU 64-bit counters, refactoring the
PMU init callbacks, support for new DT compatibles.
- IPv6 header checksum optimisation.
- Fixes: SDEI (software delegated exception interface) double-lock on
hibernate with shared events.
- Minor clean-ups and refactoring: cpu_ops accessor,
cpu_do_switch_mm() converted to C, cpufeature finalisation helper.
- sys_mremap() comment explaining the asymmetric address untagging
behaviour"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (81 commits)
mm/mremap: Add comment explaining the untagging behaviour of mremap()
arm64: head: Convert install_el2_stub to SYM_INNER_LABEL
arm64: Introduce get_cpu_ops() helper function
arm64: Rename cpu_read_ops() to init_cpu_ops()
arm64: Declare ACPI parking protocol CPU operation if needed
arm64: move kimage_vaddr to .rodata
arm64: use mov_q instead of literal ldr
arm64: Kconfig: verify binutils support for ARM64_PTR_AUTH
lkdtm: arm64: test kernel pointer authentication
arm64: compile the kernel with ptrauth return address signing
kconfig: Add support for 'as-option'
arm64: suspend: restore the kernel ptrauth keys
arm64: __show_regs: strip PAC from lr in printk
arm64: unwind: strip PAC from kernel addresses
arm64: mask PAC bits of __builtin_return_address
arm64: initialize ptrauth keys for kernel booting task
arm64: initialize and switch ptrauth kernel keys
arm64: enable ptrauth earlier
arm64: cpufeature: handle conflicts based on capability
arm64: cpufeature: Move cpu capability helpers inside C file
...
In a quest to make the huge -rc1 merge easier to handle and bisect,
merge the first chunk of 5.7-rc1 patches into android-mainline.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib54436e9515660a4c0c25c49c21bfb399eb57921
Core:
- Consolidation of the vDSO build infrastructure to address the
difficulties of cross-builds for ARM64 compat vDSO libraries by
restricting the exposure of header content to the vDSO build.
This is achieved by splitting out header content into separate
headers. which contain only the minimaly required information which is
necessary to build the vDSO. These new headers are included from the
kernel headers and the vDSO specific files.
- Enhancements to the generic vDSO library allowing more fine grained
control over the compiled in code, further reducing architecture
specific storage and preparing for adopting the generic library by PPC.
- Cleanup and consolidation of the exit related code in posix CPU timers.
- Small cleanups and enhancements here and there
Drivers:
- The obligatory new drivers: Ingenic JZ47xx and X1000 TCU support
- Correct the clock rate of PIT64b global clock
- setup_irq() cleanup
- Preparation for PWM and suspend support for the TI DM timer
- Expand the fttmr010 driver to support ast2600 systems
- The usual small fixes, enhancements and cleanups all over the place
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Merge tag 'timers-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timekeeping and timer updates from Thomas Gleixner:
"Core:
- Consolidation of the vDSO build infrastructure to address the
difficulties of cross-builds for ARM64 compat vDSO libraries by
restricting the exposure of header content to the vDSO build.
This is achieved by splitting out header content into separate
headers. which contain only the minimaly required information which
is necessary to build the vDSO. These new headers are included from
the kernel headers and the vDSO specific files.
- Enhancements to the generic vDSO library allowing more fine grained
control over the compiled in code, further reducing architecture
specific storage and preparing for adopting the generic library by
PPC.
- Cleanup and consolidation of the exit related code in posix CPU
timers.
- Small cleanups and enhancements here and there
Drivers:
- The obligatory new drivers: Ingenic JZ47xx and X1000 TCU support
- Correct the clock rate of PIT64b global clock
- setup_irq() cleanup
- Preparation for PWM and suspend support for the TI DM timer
- Expand the fttmr010 driver to support ast2600 systems
- The usual small fixes, enhancements and cleanups all over the
place"
* tag 'timers-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (80 commits)
Revert "clocksource/drivers/timer-probe: Avoid creating dead devices"
vdso: Fix clocksource.h macro detection
um: Fix header inclusion
arm64: vdso32: Enable Clang Compilation
lib/vdso: Enable common headers
arm: vdso: Enable arm to use common headers
x86/vdso: Enable x86 to use common headers
mips: vdso: Enable mips to use common headers
arm64: vdso32: Include common headers in the vdso library
arm64: vdso: Include common headers in the vdso library
arm64: Introduce asm/vdso/processor.h
arm64: vdso32: Code clean up
linux/elfnote.h: Replace elf.h with UAPI equivalent
scripts: Fix the inclusion order in modpost
common: Introduce processor.h
linux/ktime.h: Extract common header for vDSO
linux/jiffies.h: Extract common header for vDSO
linux/time64.h: Extract common header for vDSO
linux/time32.h: Extract common header for vDSO
linux/time.h: Extract common header for vDSO
...
- Lots of RST conversion work by Mauro, Daniel ALmeida, and others.
Maybe someday we'll get to the end of this stuff...maybe...
- Some organizational work to bring some order to the core-api manual.
- Various new docs and additions to the existing documentation.
- Typo fixes, warning fixes, ...
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Merge tag 'docs-5.7' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"This has been a busy cycle for documentation work.
Highlights include:
- Lots of RST conversion work by Mauro, Daniel ALmeida, and others.
Maybe someday we'll get to the end of this stuff...maybe...
- Some organizational work to bring some order to the core-api
manual.
- Various new docs and additions to the existing documentation.
- Typo fixes, warning fixes, ..."
* tag 'docs-5.7' of git://git.lwn.net/linux: (123 commits)
Documentation: x86: exception-tables: document CONFIG_BUILDTIME_TABLE_SORT
MAINTAINERS: adjust to filesystem doc ReST conversion
docs: deprecated.rst: Add BUG()-family
doc: zh_CN: add translation for virtiofs
doc: zh_CN: index files in filesystems subdirectory
docs: locking: Drop :c:func: throughout
docs: locking: Add 'need' to hardirq section
docs: conf.py: avoid thousands of duplicate label warning on Sphinx
docs: prevent warnings due to autosectionlabel
docs: fix reference to core-api/namespaces.rst
docs: fix pointers to io-mapping.rst and io_ordering.rst files
Documentation: Better document the softlockup_panic sysctl
docs: hw-vuln: tsx_async_abort.rst: get rid of an unused ref
docs: perf: imx-ddr.rst: get rid of a warning
docs: filesystems: fuse.rst: supress a Sphinx warning
docs: translations: it: avoid duplicate refs at programming-language.rst
docs: driver.rst: supress two ReSt warnings
docs: trace: events.rst: convert some new stuff to ReST format
Documentation: Add io_ordering.rst to driver-api manual
Documentation: Add io-mapping.rst to driver-api manual
...
* Stop using the deprecated i2c_new_device() function
* Replace zero-length array with flexible-array member
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Merge tag 'i3c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Boris Brezillon:
- Fix driver auto-probing related issues
- Stop using the deprecated i2c_new_device() function
- Replace zero-length array with flexible-array member
* tag 'i3c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: convert to use i2c_new_client_device()
i3c: master: Replace zero-length array with flexible-array member
i3c: Simplify i3c_device_match_id()
i3c: Generate aliases for i3c modules
i3c: Add a modalias sysfs attribute
i3c: Fix MODALIAS uevents
i3c: master: no need to iterate master device twice
Creating a Debian package without CONFIG_DEBUG_INFO produces
a warning that no debug package was created.
This patch excludes the debug package from the control file,
if no debug package is created by this configuration.
Signed-off-by: Reinhard Karcher <reinhard.karcher@gmx.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Add -Wall to catch more warnings for C++ host programs.
When I submitted the previous version, the 0-day bot reported
-Wc++11-compat warnings for old GCC:
HOSTCXX -fPIC scripts/gcc-plugins/latent_entropy_plugin.o
In file included from /usr/lib/gcc/x86_64-linux-gnu/4.8/plugin/include/tm.h:28:0,
from scripts/gcc-plugins/gcc-common.h:15,
from scripts/gcc-plugins/latent_entropy_plugin.c:78:
/usr/lib/gcc/x86_64-linux-gnu/4.8/plugin/include/config/elfos.h:102:21: warning: C++11 requires a space between string literal and macro [-Wc++11-compat]
fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
^
/usr/lib/gcc/x86_64-linux-gnu/4.8/plugin/include/config/elfos.h:170:24: warning: C++11 requires a space between string literal and macro [-Wc++11-compat]
fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
^
In file included from /usr/lib/gcc/x86_64-linux-gnu/4.8/plugin/include/tm.h:42:0,
from scripts/gcc-plugins/gcc-common.h:15,
from scripts/gcc-plugins/latent_entropy_plugin.c:78:
/usr/lib/gcc/x86_64-linux-gnu/4.8/plugin/include/defaults.h:126:24: warning: C++11 requires a space between string literal and macro [-Wc++11-compat]
fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
^
The source of the warnings is in the plugin headers, so we have no
control of it. I just suppressed them by adding -Wno-c++11-compat to
scripts/gcc-plugins/Makefile.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
If this file were compiled with -Wall, the following warning would be
reported:
scripts/kconfig/qconf.cc:312:6: warning: unused variable ‘i’ [-Wunused-variable]
int i;
^
The commit prepares to turn on -Wall for C++ host programs.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
A single fix for building dtc with GCC 10.
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Merge tag 'devicetree-fixes-for-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fix from Rob Herring:
"A single fix for building dtc with GCC 10"
* tag 'devicetree-fixes-for-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
scripts/dtc: Remove redundant YYLOC global declaration
gcc 10 will default to -fno-common, which causes this error at link
time:
(.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
This is because both dtc-lexer as well as dtc-parser define the same
global symbol yyloc. Before with -fcommon those were merged into one
defintion. The proper solution would be to to mark this as "extern",
however that leads to:
dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
26 | extern YYLTYPE yylloc;
| ^~~~~~
In file included from dtc-lexer.l:24:
dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
127 | extern YYLTYPE yylloc;
| ^~~~~~
cc1: all warnings being treated as errors
which means the declaration is completely redundant and can just be
dropped.
Signed-off-by: Dirk Mueller <dmueller@suse.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[robh: cherry-pick from upstream]
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Add an --order switch to control section reordering.
Default for --order is off.
Change the default ordering to a slightly more sensible:
M: Person acting as a maintainer
R: Person acting as a patch reviewer
L: Mailing list where patches should be sent
S: Maintenance status
W: URI for general information
Q: URI for patchwork tracking
B: URI for bug tracking/submission
C: URI for chat
P: URI or file for subsystem specific coding styles
T: SCM tree type and location
F: File and directory pattern
X: File and directory exclusion pattern
N: File glob
K: Keyword - patch content regex
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Overlapping header include additions in macsec.c
A bug fix in 'net' overlapping with the removal of 'version'
string in ena_netdev.c
Overlapping test additions in selftests Makefile
Overlapping PCI ID table adjustments in iwlwifi driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Some .gitignore files have comments like "Generated files",
"Ignore generated files" at the header part, but they are
too obvious.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.19.113 into android-4.19
Changes in 4.19.113
drm/mediatek: Find the cursor plane instead of hard coding it
spi: qup: call spi_qup_pm_resume_runtime before suspending
powerpc: Include .BTF section
ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
spi: pxa2xx: Add CS control clock quirk
spi/zynqmp: remove entry that causes a cs glitch
drm/exynos: dsi: propagate error value and silence meaningless warning
drm/exynos: dsi: fix workaround for the legacy clock name
drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer
altera-stapl: altera_get_note: prevent write beyond end of 'key'
dm bio record: save/restore bi_end_io and bi_integrity
dm integrity: use dm_bio_record and dm_bio_restore
riscv: avoid the PIC offset of static percpu data in module beyond 2G limits
drm/amd/display: Clear link settings on MST disable connector
drm/amd/display: fix dcc swath size calculations on dcn1
xenbus: req->body should be updated before req->state
xenbus: req->err should be updated before req->state
block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
parse-maintainers: Mark as executable
USB: Disable LPM on WD19's Realtek Hub
usb: quirks: add NO_LPM quirk for RTL8153 based ethernet adapters
USB: serial: option: add ME910G1 ECM composition 0x110b
usb: host: xhci-plat: add a shutdown
USB: serial: pl2303: add device-id for HP LD381
usb: xhci: apply XHCI_SUSPEND_DELAY to AMD XHCI controller 1022:145c
ALSA: line6: Fix endless MIDI read loop
ALSA: seq: virmidi: Fix running status after receiving sysex
ALSA: seq: oss: Fix running status after receiving sysex
ALSA: pcm: oss: Avoid plugin buffer overflow
ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks
iio: st_sensors: remap SMO8840 to LIS2DH12
iio: trigger: stm32-timer: disable master mode when stopping
iio: magnetometer: ak8974: Fix negative raw values in sysfs
iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode
mmc: rtsx_pci: Fix support for speed-modes that relies on tuning
mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2
staging: rtl8188eu: Add device id for MERCUSYS MW150US v2
staging: greybus: loopback_test: fix poll-mask build breakage
staging/speakup: fix get_word non-space look-ahead
intel_th: Fix user-visible error codes
intel_th: pci: Add Elkhart Lake CPU support
rtc: max8907: add missing select REGMAP_IRQ
xhci: Do not open code __print_symbolic() in xhci trace events
btrfs: fix log context list corruption after rename whiteout error
drm/amd/amdgpu: Fix GPR read from debugfs (v2)
drm/lease: fix WARNING in idr_destroy
memcg: fix NULL pointer dereference in __mem_cgroup_usage_unregister_event
mm: slub: be more careful about the double cmpxchg of freelist
mm, slub: prevent kmalloc_node crashes and memory leaks
page-flags: fix a crash at SetPageError(THP_SWAP)
x86/mm: split vmalloc_sync_all()
USB: cdc-acm: fix close_delay and closing_wait units in TIOCSSERIAL
USB: cdc-acm: fix rounding error in TIOCSSERIAL
iio: light: vcnl4000: update sampling periods for vcnl4200
kbuild: Disable -Wpointer-to-enum-cast
futex: Fix inode life-time issue
futex: Unbreak futex hashing
Revert "vrf: mark skb for multicast or link-local as enslaved to VRF"
Revert "ipv6: Fix handling of LLA with VRF and sockets bound to VRF"
ALSA: hda/realtek: Fix pop noise on ALC225
arm64: smp: fix smp_send_stop() behaviour
arm64: smp: fix crash_smp_send_stop() behaviour
drm/bridge: dw-hdmi: fix AVI frame colorimetry
staging: greybus: loopback_test: fix potential path truncation
staging: greybus: loopback_test: fix potential path truncations
Linux 4.19.113
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I90c48cd7189a964e59d199ecc0f32c0a68688ec5
[ Upstream commit 611d61f9ac ]
This makes the script more convenient to run.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Sections with double dots, e.g. .data..percpu are named intentionally
to avoid matching rules that apply to .section.*. Change module section
merging rules to skip these.
Bug: 151981957
Change-Id: I23787aa40d69da1c6ca622a5f111704d2459e163
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Sections with double dots, e.g. .data..percpu are named intentionally
to avoid matching rules that apply to .section.*. Change module section
merging rules to skip these.
Bug: 151981957
Change-Id: I23787aa40d69da1c6ca622a5f111704d2459e163
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Refactor Makefile.dtbinst so it looks similar to other Makefiles.
*.dtb should not be a phony target. Copy files based on the timestamps.
Print installed dtb paths instead of in-kernel dtb paths.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The 'dtbinst_root' is used to remember the root of the in-kernel dts
directory (i.e. arch/*/boot/dts), but it looks clumsy.
I prefer using two variables 'obj' and 'dst' to track the in-kernel
directory and the install destination, respectively.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In the process of creating the source file of a module modpost injects a
set of includes that are not required if the compilation unit is
statically built into the kernel.
The order of inclusion of the headers can cause redefinition problems
(e.g.):
In file included from include/linux/elf.h:5:0,
from include/linux/module.h:18,
from crypto/arc4.mod.c:2:
#define ELF_OSABI ELFOSABI_LINUX
In file included from include/linux/elfnote.h:62:0,
from include/linux/build-salt.h:4,
from crypto/arc4.mod.c:1:
include/uapi/linux/elf.h:363:0: note: this is the location of
the previous definition
#define ELF_OSABI ELFOSABI_NONE
The issue was exposed during the development of the series [1].
[1] https://lore.kernel.org/lkml/20200306133242.26279-1-vincenzo.frascino@arm.com/
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Link: https://lkml.kernel.org/r/20200320145351.32292-17-vincenzo.frascino@arm.com
This switches atomic-instrumented.h to use the generic instrumentation
wrappers provided by instrumented.h.
No functional change intended.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- fix __uint128_t capability test in Kconfig when GCC that defaults
to 32-bit is used to build the 64-bit kernel
- suppress new noisy Clang warnings -Wpointer-to-enum-cast
- move the namespace field in Module.symvers for the backward
compatibility reason for the depmod tool
- use available compression for initramdisk when INTRAMFS_SOURCE
is defined, which was the original behavior
- fix modpost to handle correct large section numbers when it refers
to modversion CRCs and module namespaces
- fix comments and documents
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Merge tag 'kbuild-fixes-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- fix __uint128_t capability test in Kconfig when GCC that defaults to
32-bit is used to build the 64-bit kernel
- suppress new noisy Clang warnings -Wpointer-to-enum-cast
- move the namespace field in Module.symvers for the backward
compatibility reason for the depmod tool
- use available compression for initramdisk when INTRAMFS_SOURCE is
defined, which was the original behavior
- fix modpost to handle correct large section numbers when it refers to
modversion CRCs and module namespaces
- fix comments and documents
* tag 'kbuild-fixes-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
scripts/kallsyms: fix wrong kallsyms_relative_base
modpost: Get proper section index by get_secindex() instead of st_shndx
initramfs: restore default compression behavior
modpost: move the namespace field in Module.symvers last
kbuild: Disable -Wpointer-to-enum-cast
kbuild: doc: fix references to other documents
int128: fix __uint128_t compiler test in Kconfig
kconfig: introduce m32-flag and m64-flag
kbuild: Fix inconsistent comment
There is the code in the read_symbol function in 'scripts/kallsyms.c':
if (is_ignored_symbol(name, type))
return NULL;
/* Ignore most absolute/undefined (?) symbols. */
if (strcmp(name, "_text") == 0)
_text = addr;
But the is_ignored_symbol function returns true for name="_text" and
type='A'. So the next condition is not executed and the _text variable
is always zero.
It makes the wrong kallsyms_relative_base symbol as a result of the code
(CONFIG_KALLSYMS_BASE_RELATIVE is defined):
if (base_relative) {
output_label("kallsyms_relative_base");
output_address(relative_base);
printf("\n");
}
Because the output_address function uses the _text variable.
So the kallsyms_lookup function and all related functions in the kernel
do not work properly. For example, the stack trace in oops:
Call Trace:
[aa095e58] [809feab8] kobj_ns_ops_tbl+0x7ff09ac8/0x7ff1c1c4 (unreliable)
[aa095e98] [80002b64] kobj_ns_ops_tbl+0x7f50db74/0x80000010
[aa095ef8] [809c3d24] kobj_ns_ops_tbl+0x7feced34/0x7ff1c1c4
[aa095f28] [80002ed0] kobj_ns_ops_tbl+0x7f50dee0/0x80000010
[aa095f38] [8000f238] kobj_ns_ops_tbl+0x7f51a248/0x80000010
The right stack trace:
Call Trace:
[aa095e58] [809feab8] module_vdu_video_init+0x2fc/0x3bc (unreliable)
[aa095e98] [80002b64] do_one_initcall+0x40/0x1f0
[aa095ef8] [809c3d24] kernel_init_freeable+0x164/0x1d8
[aa095f28] [80002ed0] kernel_init+0x14/0x124
[aa095f38] [8000f238] ret_from_kernel_thread+0x14/0x1c
[masahiroy@kernel.org:
This issue happens on binutils <= 2.22
The following commit fixed it:
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=d2667025dd30611514810c28bee9709e4623012a
The symbol type of _text is 'T' on binutils >= 2.23
The minimal supported binutils version for the kernel build is 2.21
]
Signed-off-by: Mikhail Petrov <Mikhail.Petrov@mir.dev>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Simplify gen_btf logic to make it work with llvm-objcopy. The existing
'file format' and 'architecture' parsing logic is brittle and does not
work with llvm-objcopy/llvm-objdump.
'file format' output of llvm-objdump>=11 will match GNU objdump, but
'architecture' (bfdarch) may not.
.BTF in .tmp_vmlinux.btf is non-SHF_ALLOC. Add the SHF_ALLOC flag
because it is part of vmlinux image used for introspection. C code
can reference the section via linker script defined __start_BTF and
__stop_BTF. This fixes a small problem that previous .BTF had the
SHF_WRITE flag (objcopy -I binary -O elf* synthesized .data).
Additionally, `objcopy -I binary` synthesized symbols
_binary__btf_vmlinux_bin_start and _binary__btf_vmlinux_bin_stop (not
used elsewhere) are replaced with more commonplace __start_BTF and
__stop_BTF.
Add 2>/dev/null because GNU objcopy (but not llvm-objcopy) warns
"empty loadable segment detected at vaddr=0xffffffff81000000, is this intentional?"
We use a dd command to change the e_type field in the ELF header from
ET_EXEC to ET_REL so that lld will accept .btf.vmlinux.bin.o. Accepting
ET_EXEC as an input file is an extremely rare GNU ld feature that lld
does not intend to support, because this is error-prone.
The output section description .BTF in include/asm-generic/vmlinux.lds.h
avoids potential subtle orphan section placement issues and suppresses
--orphan-handling=warn warnings.
Fixes: df786c9b94 ("bpf: Force .BTF section start to zero when dumping from vmlinux")
Fixes: cb0cc635c7 ("powerpc: Include .BTF section")
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Fangrui Song <maskray@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Stanislav Fomichev <sdf@google.com>
Tested-by: Andrii Nakryiko <andriin@fb.com>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Link: https://github.com/ClangBuiltLinux/linux/issues/871
Link: https://lore.kernel.org/bpf/20200318222746.173648-1-maskray@google.com
Add uevent support to MHI bus so that the client drivers can be autoloaded
by udev when the MHI devices gets created. The client drivers are
expected to provide MODULE_DEVICE_TABLE with the MHI id_table struct so
that the alias can be exported.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Link: https://lore.kernel.org/r/20200220095854.4804-13-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(uint16_t) st_shndx is limited to 65535(i.e. SHN_XINDEX) so sym_get_data() gets
wrong section index by st_shndx if requested symbol contains extended section
index that is more than 65535. In this case, we need to get proper section index
by .symtab_shndx section.
Module.symvers generated by building kernel with "-ffunction-sections -fdata-sections"
shows the issue.
Fixes: 56067812d5 ("kbuild: modversions: add infrastructure for emitting relative CRCs")
Fixes: e84f9fbbec ("modpost: refactor namespace_from_kstrtabns() to not hard-code section name")
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Currently kconfig does not have a feature that allows to detect if the
used assembler supports a specific compilation option.
Introduce 'as-option' to serve this purpose in the context of Kconfig:
config X
def_bool $(as-option,...)
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
With LTO, modules with a large number of compilation units maybe end
up exceeding the for loop argument list in the shell. Reduce the
probability for this happening by including only the modules that have
exported symbols.
Bug: 150234396
Change-Id: I4a289aff47e1444aca28d1bd00b125628f39bcd5
Suggested-by: Hsiu-Chang Chen <hsiuchangchen@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
With LTO, modules with a large number of compilation units maybe end
up exceeding the for loop argument list in the shell. Reduce the
probability for this happening by including only the modules that have
exported symbols.
Bug: 150234396
Change-Id: I4a289aff47e1444aca28d1bd00b125628f39bcd5
Suggested-by: Hsiu-Chang Chen <hsiuchangchen@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
In order to preserve backwards compatability with kmod tools, we have to
move the namespace field in Module.symvers last, as the depmod -e -E
option looks at the first three fields in Module.symvers to check symbol
versions (and it's expected they stay in the original order of crc,
symbol, module).
In addition, update an ancient comment above read_dump() in modpost that
suggested that the export type field in Module.symvers was optional. I
suspect that there were historical reasons behind that comment that are
no longer accurate. We have been unconditionally printing the export
type since 2.6.18 (commit bd5cbcedf4), which is over a decade ago now.
Fix up read_dump() to treat each field as non-optional. I suspect the
original read_dump() code treated the export field as optional in order
to support pre <= 2.6.18 Module.symvers (which did not have the export
type field). Note that although symbol namespaces are optional, the
field will not be omitted from Module.symvers if a symbol does not have
a namespace. In this case, the field will simply be empty and the next
delimiter or end of line will follow.
Cc: stable@vger.kernel.org
Fixes: cb9b55d21f ("modpost: add support for symbol namespaces")
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Daniel Borkmann says:
====================
pull-request: bpf-next 2020-03-13
The following pull-request contains BPF updates for your *net-next* tree.
We've added 86 non-merge commits during the last 12 day(s) which contain
a total of 107 files changed, 5771 insertions(+), 1700 deletions(-).
The main changes are:
1) Add modify_return attach type which allows to attach to a function via
BPF trampoline and is run after the fentry and before the fexit programs
and can pass a return code to the original caller, from KP Singh.
2) Generalize BPF's kallsyms handling and add BPF trampoline and dispatcher
objects to be visible in /proc/kallsyms so they can be annotated in
stack traces, from Jiri Olsa.
3) Extend BPF sockmap to allow for UDP next to existing TCP support in order
in order to enable this for BPF based socket dispatch, from Lorenz Bauer.
4) Introduce a new bpftool 'prog profile' command which attaches to existing
BPF programs via fentry and fexit hooks and reads out hardware counters
during that period, from Song Liu. Example usage:
bpftool prog profile id 337 duration 3 cycles instructions llc_misses
4228 run_cnt
3403698 cycles (84.08%)
3525294 instructions # 1.04 insn per cycle (84.05%)
13 llc_misses # 3.69 LLC misses per million isns (83.50%)
5) Batch of improvements to libbpf, bpftool and BPF selftests. Also addition
of a new bpf_link abstraction to keep in particular BPF tracing programs
attached even when the applicaion owning them exits, from Andrii Nakryiko.
6) New bpf_get_current_pid_tgid() helper for tracing to perform PID filtering
and which returns the PID as seen by the init namespace, from Carlos Neira.
7) Refactor of RISC-V JIT code to move out common pieces and addition of a
new RV32G BPF JIT compiler, from Luke Nelson.
8) Add gso_size context member to __sk_buff in order to be able to know whether
a given skb is GSO or not, from Willem de Bruijn.
9) Add a new bpf_xdp_output() helper which reuses XDP's existing perf RB output
implementation but can be called from tracepoint programs, from Eelco Chaudron.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When compiling bpftool the following warning is found: "declaration of
'struct bpf_pidns_info' will not be visible outside of this function."
This patch adds struct bpf_pidns_info to type_fwds array to fix this.
Fixes: b4490c5c4e ("bpf: Added new helper bpf_get_ns_current_pid_tgid")
Signed-off-by: Carlos Neira <cneirabustos@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200313154650.13366-1-cneirabustos@gmail.com
This adds the following commits from upstream:
87a656ae5ff9 check: Inform about missing ranges
73d6e9ecb417 libfdt: fix undefined behaviour in fdt_splice_()
2525da3dba9b Bump version to v1.6.0
62cb4ad286ff Execute tests on FreeBSD with Cirrus CI
1f9a41750883 tests: Allow running the testsuite on already installed binary / libraries
c5995ddf4c20 tests: Honour NO_YAML make variable
e4ce227e89d7 tests: Properly clean up .bak file from tests
9b75292c335c tests: Honour $(NO_PYTHON) flag from Makefile in run_tests.sh
6c253afd07d4 Encode $(NO_PYTHON) consistently with other variables
95ec8ef706bd tests: No need to explicitly pass $PYTHON from Make to run_tests.sh
2b5f62d109a2 tests: Let run_tests.sh run Python tests without Makefile assistance
76b43dcbd18a checks: Add 'dma-ranges' check
e5c92a4780c6 libfdt: Use VALID_INPUT for FDT_ERR_BADSTATE checks
e5cc26b68bc0 libfdt: Add support for disabling internal checks
28fd7590aad2 libfdt: Improve comments in some of the assumptions
fc207c32341b libfdt: Fix a few typos
0f61c72dedc4 libfdt: Allow exclusion of fdt_check_full()
f270f45fd5d2 libfdt: Add support for disabling ordering check/fixup
c18bae9a4c96 libfdt: Add support for disabling version checks
fc03c4a2e04e libfdt: Add support for disabling rollback handling
77563ae72b7c libfdt: Add support for disabling sanity checks
57bc6327b80b libfdt: Add support for disabling dtb checks
464962489dcc Add a way to control the level of checks in the code
0c5326cb2845 libfdt: De-inline fdt_header_size()
cc6a5a071504 Revert "yamltree: Ensure consistent bracketing of properties with phandles"
0e9225eb0dfe Remove redundant YYLOC global declaration
cab09eedd644 Move -DNO_VALGRIND into CPPFLAGS
0eb1cb0b531e Makefile: pass $(CFLAGS) also during dependency generation
Signed-off-by: Rob Herring <robh@kernel.org>
The Makefile.dtc and Makefile.libfdt fragments from upstream dtc aren't
used by the kernel build, so let's remove them and stop syncing them.
Signed-off-by: Rob Herring <robh@kernel.org>
The 'imply' statement may create unmet direct dependency when the
implied symbol depends on m.
[Test Code]
config FOO
tristate "foo"
imply BAZ
config BAZ
tristate "baz"
depends on BAR
config BAR
def_tristate m
config MODULES
def_bool y
option modules
If you set FOO=y, BAZ is also promoted to y, which results in the
following .config file:
CONFIG_FOO=y
CONFIG_BAZ=y
CONFIG_BAR=m
CONFIG_MODULES=y
This does not meet the dependency 'BAZ depends on BAR'.
Unlike 'select', what is worse, Kconfig never shows the
'WARNING: unmet direct dependencies detected for ...' for this case.
Because 'imply' is considered to be weaker than 'depends on', Kconfig
should take the direct dependency into account.
For clarification, describe this case in kconfig-language.rst too.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
The 'imply' keyword restricts a symbol to y or n, excluding m
when it is implied by y. This is the original behavior since
commit 237e3ad0f1 ("Kconfig: Introduce the "imply" keyword").
However, the author of this feature, Nicolas Pitre, stated that
the 'imply' keyword should not impose any restrictions.
(https://lkml.org/lkml/2020/2/19/714)
I agree, and want to get rid of this tricky behavior.
Suggested-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Currently when CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=n, modpost
only warns when a module is missing namespace imports. Under this
configuration, such a module cannot be loaded into the kernel anyway, as
the module loader would reject it. We might as well return a build
error when a module is missing namespace imports under
CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=n, so that the build
warning does not go ignored/unnoticed.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Rework modpost's logging interface by consolidating merror(), warn(), and
fatal() to use a single function, modpost_log(). Introduce different
logging levels (WARN, ERROR, FATAL) as well. The purpose of this cleanup is
to reduce code duplication when deciding whether or not to warn or error
out based on a condition.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The dt_binding_check target is located outside of the
'ifneq ($(dtstree),) ... endif' block.
So, you can run 'make dt_binding_check' on any architecture.
This makes a perfect sense because the dt-schema is arch-agnostic.
The only one problem I see is that scripts/dtc/dtc is not always built.
For example, ARCH=x86 defconfig does not define CONFIG_DTC. Kbuild
descends into scripts/dtc/ with doing nothing. Then, it fails to build
*.example.dt.yaml files.
Let's build scripts/dtc/dtc forcibly when running dt_binding_check.
The dt-schema does not depend on any CONFIG option either, so you
should be able to run dt_binding_check without the .config file.
Going forward, you can directly run 'make dt_binding_check' in a
pristine source tree.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
New bpf helper bpf_get_ns_current_pid_tgid,
This helper will return pid and tgid from current task
which namespace matches dev_t and inode number provided,
this will allows us to instrument a process inside a container.
Signed-off-by: Carlos Neira <cneirabustos@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200304204157.58695-3-cneirabustos@gmail.com
When a compiler supports multiple architectures, some compiler features
can be dependent on the target architecture.
This is typical for Clang, which supports multiple LLVM backends.
Even for GCC, we need to take care of biarch compiler cases.
It is not a problem when we evaluate cc-option in Makefiles because
cc-option is tested against the flag in question + $(KBUILD_CFLAGS).
The cc-option in Kconfig, on the other hand, does not accumulate
tested flags. Due to this simplification, it could potentially test
cc-option against a different target.
At first, Kconfig always evaluated cc-option against the host
architecture.
Since commit e8de12fb7c ("kbuild: Check for unknown options with
cc-option usage in Kconfig and clang"), in case of cross-compiling
with Clang, the target triple is correctly passed to Kconfig.
The case with biarch GCC (and native build with Clang) is still not
handled properly. We need to pass some flags to specify the target
machine bit.
Due to the design, all the macros in Kconfig are expanded in the
parse stage, where we do not know the target bit size yet.
For example, arch/x86/Kconfig allows a user to toggle CONFIG_64BIT.
If a compiler flag -foo depends on the machine bit, it must be tested
twice, one with -m32 and the other with -m64.
However, -m32/-m64 are not always recognized. So, this commits adds
m64-flag and m32-flag macros. They expand to -m32, -m64, respectively
if supported. Or, they expand to an empty string if unsupported.
The typical usage is like this:
config FOO
bool
default $(cc-option,$(m64-flag) -foo) if 64BIT
default $(cc-option,$(m32-flag) -foo)
This is clumsy, but there is no elegant way to handle this in the
current static macro expansion.
There was discussion for static functions vs dynamic functions.
The consensus was to go as far as possible with the static functions.
(https://lkml.org/lkml/2018/3/2/22)
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: George Spelvin <lkml@sdf.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Information about GCC plugins is relevant to kernel building, so move this
document to the kbuild manual.
Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The UNUSED_KSYMS_WHITELIST feature as been merged in ACK as FROMLIST v5,
but the v6 got recently queued with minor changes.
Align the Android code with what will be merged upstream.
Bug: 148277666
Fixes: 92f76ef499 ("FROMLIST: kbuild: allow symbol whitelisting with
TRIM_UNUSED_KSYMS")
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I41726e3fba6e299bb541f93ae9ac31add0c08b60
The UNUSED_KSYMS_WHITELIST feature as been merged in ACK as FROMLIST v5,
but the v6 got recently queued with minor changes.
Align the Android code with what will be merged upstream.
Bug: 148277666
Fixes: 3d0431a87a ("BACKPORT: FROMLIST: kbuild: allow symbol
whitelisting with TRIM_UNUSED_KSYMS")
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I41726e3fba6e299bb541f93ae9ac31add0c08b60
This makes the script more convenient to run.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When CONFIG_DEBUG_INFO is enabled, the two kallsyms linking steps spend
time collecting and writing the dwarf sections to the temporary output
files. kallsyms does not need this information, and leaving it off
halves their linking time. This is especially noticeable without
CONFIG_DEBUG_INFO_REDUCED. The BTF linking stage, however, does still
need those details.
Refactor the BTF and kallsyms generation stages slightly for more
regularized temporary names. Skip debug during kallsyms links.
Additionally move "info BTF" to the correct place since commit
8959e39272 ("kbuild: Parameterize kallsyms generation and correct
reporting"), which added "info LD ..." to vmlinux_link calls.
For a full debug info build with BTF, my link time goes from 1m06s to
0m54s, saving about 12 seconds, or 18%.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/202003031814.4AEA3351@keescook
Most folks only run dt_binding_check on the single schema they care about
by setting DT_SCHEMA_FILES. That means example is only checked against
that one schema which is not always sufficient.
Let's address this by splitting processed-schema.yaml into 2 files: one
that's always all schemas for the examples and one that's just the schema
in DT_SCHEMA_FILES for dtbs.
Co-developed-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
When doing a cold build, autoksyms.h starts empty, and is updated late
in the build process to have visibility over the symbols used by in-tree
drivers. But since the symbol whitelist is known upfront, it can be used
to pre-populate autoksyms.h and maximize the amount of code that can be
compiled to its final state in a single pass, hence reducing build time.
Do this by using gen_autoksyms.sh to initialize autoksyms.h instead of
creating an empty file.
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In order to prepare the ground for a build-time optimization, split
adjust_autoksyms.sh into two scripts: one that generates autoksyms.h
based on all currently available information (whitelist, and .mod
files), and the other to inspect the diff between two versions of
autoksyms.h and trigger appropriate rebuilds.
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
CONFIG_TRIM_UNUSED_KSYMS currently removes all unused exported symbols
from ksymtab. This works really well when using in-tree drivers, but
cannot be used in its current form if some of them are out-of-tree.
Indeed, even if the list of symbols required by out-of-tree drivers is
known at compile time, the only solution today to guarantee these don't
get trimmed is to set CONFIG_TRIM_UNUSED_KSYMS=n. This not only wastes
space, but also makes it difficult to control the ABI usable by vendor
modules in distribution kernels such as Android. Being able to control
the kernel ABI surface is particularly useful to ship a unique Generic
Kernel Image (GKI) for all vendors, which is a first step in the
direction of getting all vendors to contribute their code upstream.
As such, attempt to improve the situation by enabling users to specify a
symbol 'whitelist' at compile time. Any symbol specified in this
whitelist will be kept exported when CONFIG_TRIM_UNUSED_KSYMS is set,
even if it has no in-tree user. The whitelist is defined as a simple
text file, listing symbols, one per line.
Acked-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Most of the Kconfig commands (except defconfig and all*config) read
the .config file as a base set of CONFIG options.
When it does not exist, the files in DEFCONFIG_LIST are searched in
this order and loaded if found.
I do not see much sense in the last two lines in DEFCONFIG_LIST.
[1] ARCH_DEFCONFIG
The entry for DEFCONFIG_LIST is guarded by 'depends on !UML'. So, the
ARCH_DEFCONFIG definition in arch/x86/um/Kconfig is meaningless.
arch/{sh,sparc,x86}/Kconfig define ARCH_DEFCONFIG depending on 32 or
64 bit variant symbols. This is a little bit strange; ARCH_DEFCONFIG
should be a fixed string because the base config file is loaded before
the symbol evaluation stage.
Using KBUILD_DEFCONFIG makes more sense because it is fixed before
Kconfig is invoked. Fortunately, arch/{sh,sparc,x86}/Makefile define it
in the same way, and it works as expected. Hence, replace ARCH_DEFCONFIG
with "arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)".
[2] arch/$(ARCH)/defconfig
This file path is no longer valid. The defconfig files are always located
in the arch configs/ directories.
$ find arch -name defconfig | sort
arch/alpha/configs/defconfig
arch/arm64/configs/defconfig
arch/csky/configs/defconfig
arch/nds32/configs/defconfig
arch/riscv/configs/defconfig
arch/s390/configs/defconfig
arch/unicore32/configs/defconfig
The path arch/*/configs/defconfig is already covered by
"arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)". So, this file path is
not necessary.
I moved the default KBUILD_DEFCONFIG to the top Makefile. Otherwise,
the 7 architectures listed above would end up with endless loop of
syncconfig.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
With Ubuntu 16.04 (and presumably Debian distros of the same age),
the instructions for setting up a python virtual environment should
do so with the python 3 interpreter. On these older distros, the
default python (and virtualenv command) might be python2 based.
Some of the packages that sphinx relies on are now only available
for python3. If you don't specify the python3 interpreter for
the virtualenv, you get errors when doing the pip installs for
various packages
Fix this by adding '-p python3' to the virtualenv recommendation
line.
Signed-off-by: Tim Bird <tim.bird@sony.com>
Link: https://lore.kernel.org/r/1582594481-23221-1-git-send-email-tim.bird@sony.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
If *q is '\0', the condition (isalnum(*q) || *q == '_') is false anyway.
It is redundant to ensure non-zero *q.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This is probably stale code. In old days (~ Linux 2.5.59), Kbuild made
genksyms generate include/linux/modules/*.ver files.
The currenct Kbuild does not generate *.ver files at all.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This reverts a very old commit, which dates back to the pre-git era:
|commit 5d1cfb5b12f72145d30ba0f53c9f238144b122b8
|Author: Kai Germaschewski <kai@tp1.ruhr-uni-bochum.de>
|Date: Sat Jul 27 02:53:19 2002 -0500
|
| kbuild: Fix compiling/installing as different users
|
| "make bzImage && sudo make install" had the problem that during
| the "sudo make install" the build system would notice that the information
| in include/linux/compile.h is not accurate (it says "compiled by <user>",
| but we are root), thus causing compile.h to be updated and leading to
| some recompiles.
|
| We now only update "compile.h" if the current user is the owner of
| include/linux/autoconf.h, i.e. the user who did the "make *config". So the
| above sequence will correctly state "compiled by <user>".
|
|diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
|index 6313db96172..cd956380978 100755
|--- a/scripts/mkcompile_h
|+++ b/scripts/mkcompile_h
|@@ -3,6 +3,17 @@ ARCH=$2
| SMP=$3
| CC=$4
|
|+# If compile.h exists already and we don't own autoconf.h
|+# (i.e. we're not the same user who did make *config), don't
|+# modify compile.h
|+# So "sudo make install" won't change the "compiled by <user>"
|+# do "compiled by root"
|+
|+if [ -r $TARGET -a ! -O ../include/linux/autoconf.h ]; then
|+ echo ' (not modified)'
|+ exit 0
|+fi
|+
| if [ -r ../.version ]; then
| VERSION=`cat ../.version`
| else
The 'make bzImage && sudo make install' problem no longer happens
because commit 1648e4f805 ("x86, kbuild: make "make install" not
depend on vmlinux") fixed the root cause.
Commit 19514fc665 ("arm, kbuild: make "make install" not depend on
vmlinux") fixed the similar issue on ARM, with detailed explanation.
So, the rule is that the installation targets should never trigger
the builds of any build artifact. By following it, this check is
unneeded.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Alexei Starovoitov says:
====================
pull-request: bpf-next 2020-02-28
The following pull-request contains BPF updates for your *net-next* tree.
We've added 41 non-merge commits during the last 7 day(s) which contain
a total of 49 files changed, 1383 insertions(+), 499 deletions(-).
The main changes are:
1) BPF and Real-Time nicely co-exist.
2) bpftool feature improvements.
3) retrieve bpf_sk_storage via INET_DIAG.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The backport of the UNUSED_KSYMS_WHITELIST feature to android-4.19
missed a dependency on $MODVERDIR (which is still there in 4.19), hence
causing it to un-export any symbol that is not on the whitelist, even if
it has an in-tree user.
I was _really_ close to call that a 'feature', but it wasn't exactly
intended, so I'll call it a 'bug' instead.
Kill the bugger.
Bug: 148277666
Fixes: 3d0431a87a ("BACKPORT: FROMLIST: kbuild: allow symbol
whitelisting with TRIM_UNUSED_KSYMS")
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I35449dc92437f2928a659c8ecd6fbf725e0e1b87
Remove initial SIDs that have never been used or are no longer used by
the kernel from its string table, which is also used to generate the
SECINITSID_* symbols referenced in code. Update the code to
gracefully handle the fact that these can now be NULL. Stop treating
it as an error if a policy defines additional initial SIDs unknown to
the kernel. Do not load unused initial SID contexts into the sidtab.
Fix the incorrect usage of the name from the ocontext in error
messages when loading initial SIDs since these are not presently
written to the kernel policy and are therefore always NULL.
After this change, it is possible to safely reclaim and reuse some of
the unused initial SIDs without compatibility issues. Specifically,
unused initial SIDs that were being assigned the same context as the
unlabeled initial SID in policies can be reclaimed and reused for
another purpose, with existing policies still treating them as having
the unlabeled context and future policies having the option of mapping
them to a more specific context. For example, this could have been
used when the infiniband labeling support was introduced to define
initial SIDs for the default pkey and endport SIDs similar to the
handling of port/netif/node SIDs rather than always using
SECINITSID_UNLABELED as the default.
The set of safely reclaimable unused initial SIDs across all known
policies is igmp_packet (13), icmp_socket (14), tcp_socket (15), kmod
(24), policy (25), and scmp_packet (26); these initial SIDs were
assigned the same context as unlabeled in all known policies including
mls. If only considering non-mls policies (i.e. assuming that mls
users always upgrade policy with their kernels), the set of safely
reclaimable unused initial SIDs further includes file_labels (6), init
(7), sysctl_modprobe (16), and sysctl_fs (18) through sysctl_dev (23).
Adding new initial SIDs beyond SECINITSID_NUM to policy unfortunately
became a fatal error in commit 24ed7fdae6 ("selinux: use separate
table for initial SID lookup") and even before that it could cause
problems on a policy reload (collision between the new initial SID and
one allocated at runtime) ever since commit 42596eafdd ("selinux:
load the initial SIDs upon every policy load") so we cannot safely
start adding new initial SIDs to policies beyond SECINITSID_NUM (27)
until such a time as all such kernels do not need to be supported and
only those that include this commit are relevant. That is not a big
deal since we haven't added a new initial SID since 2004 (v2.6.7) and
we have plenty of unused ones we can reclaim if we truly need one.
If we want to avoid the wasted storage in initial_sid_to_string[]
and/or sidtab->isids[] for the unused initial SIDs, we could introduce
an indirection between the kernel initial SID values and the policy
initial SID values and just map the policy SID values in the ocontexts
to the kernel values during policy_load_isids(). Originally I thought
we'd do this by preserving the initial SID names in the kernel policy
and creating a mapping at load time like we do for the security
classes and permissions but that would require a new kernel policy
format version and associated changes to libsepol/checkpolicy and I'm
not sure it is justified. Simpler approach is just to create a fixed
mapping table in the kernel from the existing fixed policy values to
the kernel values. Less flexible but probably sufficient.
A separate selinux userspace change was applied in
8677ce5e8f
to enable removal of most of the unused initial SID contexts from
policies, but there is no dependency between that change and this one.
That change permits removing all of the unused initial SID contexts
from policy except for the fs and sysctl SID contexts. The initial
SID declarations themselves would remain in policy to preserve the
values of subsequent ones but the contexts can be dropped. If/when
the kernel decides to reuse one of them, future policies can change
the name and start assigning a context again without breaking
compatibility.
Here is how I would envision staging changes to the initial SIDs in a
compatible manner after this commit is applied:
1. At any time after this commit is applied, the kernel could choose
to reclaim one of the safely reclaimable unused initial SIDs listed
above for a new purpose (i.e. replace its NULL entry in the
initial_sid_to_string[] table with a new name and start using the
newly generated SECINITSID_name symbol in code), and refpolicy could
at that time rename its declaration of that initial SID to reflect its
new purpose and start assigning it a context going
forward. Existing/old policies would map the reclaimed initial SID to
the unlabeled context, so that would be the initial default behavior
until policies are updated. This doesn't depend on the selinux
userspace change; it will work with existing policies and userspace.
2. In 6 months or so we'll have another SELinux userspace release that
will include the libsepol/checkpolicy support for omitting unused
initial SID contexts.
3. At any time after that release, refpolicy can make that release its
minimum build requirement and drop the sid context statements (but not
the sid declarations) for all of the unused initial SIDs except for
fs and sysctl, which must remain for compatibility on policy
reload with old kernels and for compatibility with kernels that were
still using SECINITSID_SYSCTL (< 2.6.39). This doesn't depend on this
kernel commit; it will work with previous kernels as well.
4. After N years for some value of N, refpolicy decides that it no
longer cares about policy reload compatibility for kernels that
predate this kernel commit, and refpolicy drops the fs and sysctl
SID contexts from policy too (but retains the declarations).
5. After M years for some value of M, the kernel decides that it no
longer cares about compatibility with refpolicies that predate step 4
(dropping the fs and sysctl SIDs), and those two SIDs also become
safely reclaimable. This step is optional and need not ever occur unless
we decide that the need to reclaim those two SIDs outweighs the
compatibility cost.
6. After O years for some value of O, refpolicy decides that it no
longer cares about policy load (not just reload) compatibility for
kernels that predate this kernel commit, and both kernel and refpolicy
can then start adding and using new initial SIDs beyond 27. This does
not depend on the previous change (step 5) and can occur independent
of it.
Fixes: https://github.com/SELinuxProject/selinux-kernel/issues/12
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
When doing a cold build, autoksyms.h starts empty, and is updated late
in the build process to have visibility over the symbols used by in-tree
drivers. But since the symbol whitelist is known upfront, it can be used
to pre-populate autoksyms.h and maximize the amount of code that can be
compiled to its final state in a single pass, hence reducing build time.
Do this by using gen_autoksyms.sh to initialize autoksyms.h instead of
creating an empty file.
[ BACKPORT: 60ae1b194b not present, sed 3rd line of modules.order ]
Bug: 148277666
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/lkml/20200218094139.78835-4-qperret@google.com
Change-Id: I98f3394b190f097390f980e5d4d57981f91b22a6
In order to prepare the ground for a build-time optimization, split
adjust_autoksyms.sh into two scripts: one that generates autoksyms.h
based on all currently available information (whitelist, and .mod
files), and the other to inspect the diff between two versions of
autoksyms.h and trigger appropriate rebuilds.
[ BACKPORT: 60ae1b194b not present, sed 3rd line of modules.order ]
Bug: 148277666
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/lkml/20200218094139.78835-3-qperret@google.com
Change-Id: I7ed4f8f72c0ef9ac98419877efb5ef828d10b0d7
CONFIG_TRIM_UNUSED_KSYMS currently removes all unused exported symbols
from ksymtab. This works really well when using in-tree drivers, but
cannot be used in its current form if some of them are out-of-tree.
Indeed, even if the list of symbols required by out-of-tree drivers is
known at compile time, the only solution today to guarantee these don't
get trimmed is to set CONFIG_TRIM_UNUSED_KSYMS=n. This not only wastes
space, but also makes it difficult to control the ABI usable by vendor
modules in distribution kernels such as Android. Being able to control
the kernel ABI surface is particularly useful to ship a unique Generic
Kernel Image (GKI) for all vendors, which is a first step in the
direction of getting all vendors to contribute their code upstream.
As such, attempt to improve the situation by enabling users to specify a
symbol 'whitelist' at compile time. Any symbol specified in this
whitelist will be kept exported when CONFIG_TRIM_UNUSED_KSYMS is set,
even if it has no in-tree user. The whitelist is defined as a simple
text file, listing symbols, one per line.
[ BACKPORT: 60ae1b194b not present, sed 3rd line of modules.order ]
Bug: 148277666
Acked-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/lkml/20200218094139.78835-2-qperret@google.com
Change-Id: Ie9a4bbb8eebb20202623f084859fb89e55a32698
This is essentially a partial backport of b7dca6dd1e ("kbuild: create
*.mod with full directory path and remove MODVERDIR") as a full backport
would pull in too many dependencies.
It is necessary to simplify the backport of the TRIM_NONLISTED_KMI
feature.
Bug: 148277666
Change-Id: Ibf85bf864b3961d5bec4965742f08a80e9f234af
Signed-off-by: Quentin Perret <qperret@google.com>
As commit 423a8155fa ("kbuild: Fix reading of .config in
link-vmlinux.sh") addressed, some shells fail to perform '.' if
${KCONFIG_CONFIG} does not contain a slash at all.
Instead, we can source include/config/auto.conf, which obviously
contain slashes, and we do not expect its file path overridden by
a user. Perhaps, the performance might be slightly better since
unset CONFIG options are stripped from include/config/auto.conf.
scripts/setlocalversion already works this way.
Bug: 148277666
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
(cherry picked from commit 94cf8acc38)
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I414ffbfa92ee202f0c88757f896bf9c8811822d7
When doing a cold build, autoksyms.h starts empty, and is updated late
in the build process to have visibility over the symbols used by in-tree
drivers. But since the symbol whitelist is known upfront, it can be used
to pre-populate autoksyms.h and maximize the amount of code that can be
compiled to its final state in a single pass, hence reducing build time.
Do this by using gen_autoksyms.sh to initialize autoksyms.h instead of
creating an empty file.
Bug: 148277666
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/lkml/20200218094139.78835-4-qperret@google.com
Change-Id: I98f3394b190f097390f980e5d4d57981f91b22a6
In order to prepare the ground for a build-time optimization, split
adjust_autoksyms.sh into two scripts: one that generates autoksyms.h
based on all currently available information (whitelist, and .mod
files), and the other to inspect the diff between two versions of
autoksyms.h and trigger appropriate rebuilds.
Bug: 148277666
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/lkml/20200218094139.78835-3-qperret@google.com
Change-Id: I7ed4f8f72c0ef9ac98419877efb5ef828d10b0d7
CONFIG_TRIM_UNUSED_KSYMS currently removes all unused exported symbols
from ksymtab. This works really well when using in-tree drivers, but
cannot be used in its current form if some of them are out-of-tree.
Indeed, even if the list of symbols required by out-of-tree drivers is
known at compile time, the only solution today to guarantee these don't
get trimmed is to set CONFIG_TRIM_UNUSED_KSYMS=n. This not only wastes
space, but also makes it difficult to control the ABI usable by vendor
modules in distribution kernels such as Android. Being able to control
the kernel ABI surface is particularly useful to ship a unique Generic
Kernel Image (GKI) for all vendors, which is a first step in the
direction of getting all vendors to contribute their code upstream.
As such, attempt to improve the situation by enabling users to specify a
symbol 'whitelist' at compile time. Any symbol specified in this
whitelist will be kept exported when CONFIG_TRIM_UNUSED_KSYMS is set,
even if it has no in-tree user. The whitelist is defined as a simple
text file, listing symbols, one per line.
Bug: 148277666
Acked-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/lkml/20200218094139.78835-2-qperret@google.com
Change-Id: Ie9a4bbb8eebb20202623f084859fb89e55a32698
This if_change_rule is not working properly; it cannot detect any
command line change.
The reason is because cmd-check in scripts/Kbuild.include compares
$(cmd_$@) and $(cmd_$1), but cmd_dtc_dt_yaml does not exist here.
For if_change_rule to work properly, the stem part of cmd_* and rule_*
must match. Because this cmd_and_fixdep invokes cmd_dtc, this rule must
be named rule_dtc.
Fixes: 4f0e3a57d6 ("kbuild: Add support for DT binding schema checks")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Change "/usr/bin/python3" to "/usr/bin/env python3" for
more portable solution in bpf_helpers_doc.py.
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200225205426.6975-1-scott.branden@broadcom.com
This script allows sysctl documentation to be checked against the
kernel source code, to identify missing or obsolete entries. Running
it against 5.5 shows for example that sysctl/kernel.rst has two
obsolete entries and is missing 52 entries.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There are some issues at the script with regards to :doc:
tags:
- It doesn't escape files under Documentation/sphinx,
leading to false positives;
- It doesn't handle root URLs, like :doc:`/x86/boot`;
- It doesn't output the file with a bad reference.
Address those things, in order to remove false positives
from the list of problems.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge 4.19.106 into android-4.19
Changes in 4.19.106
core: Don't skip generic XDP program execution for cloned SKBs
enic: prevent waking up stopped tx queues over watchdog reset
net/smc: fix leak of kernel memory to user space
net: dsa: tag_qca: Make sure there is headroom for tag
net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS
net/sched: flower: add missing validation of TCA_FLOWER_FLAGS
Revert "KVM: nVMX: Use correct root level for nested EPT shadow page tables"
Revert "KVM: VMX: Add non-canonical check on writes to RTIT address MSRs"
KVM: nVMX: Use correct root level for nested EPT shadow page tables
drm/gma500: Fixup fbdev stolen size usage evaluation
cpu/hotplug, stop_machine: Fix stop_machine vs hotplug order
brcmfmac: Fix use after free in brcmf_sdio_readframes()
leds: pca963x: Fix open-drain initialization
ext4: fix ext4_dax_read/write inode locking sequence for IOCB_NOWAIT
ALSA: ctl: allow TLV read operation for callback type of element in locked case
gianfar: Fix TX timestamping with a stacked DSA driver
pinctrl: sh-pfc: sh7264: Fix CAN function GPIOs
pxa168fb: Fix the function used to release some memory in an error handling path
media: i2c: mt9v032: fix enum mbus codes and frame sizes
powerpc/powernv/iov: Ensure the pdn for VFs always contains a valid PE number
gpio: gpio-grgpio: fix possible sleep-in-atomic-context bugs in grgpio_irq_map/unmap()
iommu/vt-d: Fix off-by-one in PASID allocation
char/random: silence a lockdep splat with printk()
media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run()
pinctrl: baytrail: Do not clear IRQ flags on direct-irq enabled pins
efi/x86: Map the entire EFI vendor string before copying it
MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init()
sparc: Add .exit.data section.
uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()
usb: gadget: udc: fix possible sleep-in-atomic-context bugs in gr_probe()
usb: dwc2: Fix IN FIFO allocation
clocksource/drivers/bcm2835_timer: Fix memory leak of timer
kselftest: Minimise dependency of get_size on C library interfaces
jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal
x86/sysfb: Fix check for bad VRAM size
pwm: omap-dmtimer: Simplify error handling
s390/pci: Fix possible deadlock in recover_store()
powerpc/iov: Move VF pdev fixup into pcibios_fixup_iov()
tracing: Fix tracing_stat return values in error handling paths
tracing: Fix very unlikely race of registering two stat tracers
ARM: 8952/1: Disable kmemleak on XIP kernels
ext4, jbd2: ensure panic when aborting with zero errno
ath10k: Correct the DMA direction for management tx buffers
drm/amd/display: Retrain dongles when SINK_COUNT becomes non-zero
nbd: add a flush_workqueue in nbd_start_device
KVM: s390: ENOTSUPP -> EOPNOTSUPP fixups
kconfig: fix broken dependency in randconfig-generated .config
clk: qcom: rcg2: Don't crash if our parent can't be found; return an error
drm/amdgpu: remove 4 set but not used variable in amdgpu_atombios_get_connector_info_from_object_table
drm/amdgpu: Ensure ret is always initialized when using SOC15_WAIT_ON_RREG
regulator: rk808: Lower log level on optional GPIOs being not available
net/wan/fsl_ucc_hdlc: reject muram offsets above 64K
NFC: port100: Convert cpu_to_le16(le16_to_cpu(E1) + E2) to use le16_add_cpu().
selinux: fall back to ref-walk if audit is required
arm64: dts: allwinner: H6: Add PMU mode
arm: dts: allwinner: H3: Add PMU node
selinux: ensure we cleanup the internal AVC counters on error in avc_insert()
arm64: dts: qcom: msm8996: Disable USB2 PHY suspend by core
ARM: dts: imx6: rdu2: Disable WP for USDHC2 and USDHC3
ARM: dts: imx6: rdu2: Limit USBH1 to Full Speed
PCI: iproc: Apply quirk_paxc_bridge() for module as well as built-in
media: cx23885: Add support for AVerMedia CE310B
PCI: Add generic quirk for increasing D3hot delay
PCI: Increase D3 delay for AMD Ryzen5/7 XHCI controllers
media: v4l2-device.h: Explicitly compare grp{id,mask} to zero in v4l2_device macros
reiserfs: Fix spurious unlock in reiserfs_fill_super() error handling
r8169: check that Realtek PHY driver module is loaded
fore200e: Fix incorrect checks of NULL pointer dereference
netfilter: nft_tunnel: add the missing ERSPAN_VERSION nla_policy
ALSA: usx2y: Adjust indentation in snd_usX2Y_hwdep_dsp_status
b43legacy: Fix -Wcast-function-type
ipw2x00: Fix -Wcast-function-type
iwlegacy: Fix -Wcast-function-type
rtlwifi: rtl_pci: Fix -Wcast-function-type
orinoco: avoid assertion in case of NULL pointer
ACPICA: Disassembler: create buffer fields in ACPI_PARSE_LOAD_PASS1
scsi: ufs: Complete pending requests in host reset and restore path
scsi: aic7xxx: Adjust indentation in ahc_find_syncrate
drm/mediatek: handle events when enabling/disabling crtc
ARM: dts: r8a7779: Add device node for ARM global timer
selinux: ensure we cleanup the internal AVC counters on error in avc_update()
dmaengine: Store module owner in dma_device struct
dmaengine: imx-sdma: Fix memory leak
crypto: chtls - Fixed memory leak
x86/vdso: Provide missing include file
PM / devfreq: rk3399_dmc: Add COMPILE_TEST and HAVE_ARM_SMCCC dependency
pinctrl: sh-pfc: sh7269: Fix CAN function GPIOs
reset: uniphier: Add SCSSI reset control for each channel
RDMA/rxe: Fix error type of mmap_offset
clk: sunxi-ng: add mux and pll notifiers for A64 CPU clock
ALSA: sh: Fix unused variable warnings
clk: uniphier: Add SCSSI clock gate for each channel
ALSA: sh: Fix compile warning wrt const
tools lib api fs: Fix gcc9 stringop-truncation compilation error
ACPI: button: Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch
mlx5: work around high stack usage with gcc
drm: remove the newline for CRC source name.
ARM: dts: stm32: Add power-supply for DSI panel on stm32f469-disco
usbip: Fix unsafe unaligned pointer usage
udf: Fix free space reporting for metadata and virtual partitions
staging: rtl8188: avoid excessive stack usage
IB/hfi1: Add software counter for ctxt0 seq drop
soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
efi/x86: Don't panic or BUG() on non-critical error conditions
rcu: Use WRITE_ONCE() for assignments to ->pprev for hlist_nulls
Input: edt-ft5x06 - work around first register access error
x86/nmi: Remove irq_work from the long duration NMI handler
wan: ixp4xx_hss: fix compile-testing on 64-bit
ASoC: atmel: fix build error with CONFIG_SND_ATMEL_SOC_DMA=m
tty: synclinkmp: Adjust indentation in several functions
tty: synclink_gt: Adjust indentation in several functions
visorbus: fix uninitialized variable access
driver core: platform: Prevent resouce overflow from causing infinite loops
driver core: Print device when resources present in really_probe()
bpf: Return -EBADRQC for invalid map type in __bpf_tx_xdp_map
vme: bridges: reduce stack usage
drm/nouveau/secboot/gm20b: initialize pointer in gm20b_secboot_new()
drm/nouveau/gr/gk20a,gm200-: add terminators to method lists read from fw
drm/nouveau: Fix copy-paste error in nouveau_fence_wait_uevent_handler
drm/nouveau/drm/ttm: Remove set but not used variable 'mem'
drm/nouveau/fault/gv100-: fix memory leak on module unload
drm/vmwgfx: prevent memory leak in vmw_cmdbuf_res_add
usb: musb: omap2430: Get rid of musb .set_vbus for omap2430 glue
iommu/arm-smmu-v3: Use WRITE_ONCE() when changing validity of an STE
f2fs: set I_LINKABLE early to avoid wrong access by vfs
f2fs: free sysfs kobject
scsi: iscsi: Don't destroy session if there are outstanding connections
arm64: fix alternatives with LLVM's integrated assembler
drm/amd/display: fixup DML dependencies
watchdog/softlockup: Enforce that timestamp is valid on boot
f2fs: fix memleak of kobject
x86/mm: Fix NX bit clearing issue in kernel_map_pages_in_pgd
pwm: omap-dmtimer: Remove PWM chip in .remove before making it unfunctional
cmd64x: potential buffer overflow in cmd64x_program_timings()
ide: serverworks: potential overflow in svwks_set_pio_mode()
pwm: Remove set but not set variable 'pwm'
btrfs: fix possible NULL-pointer dereference in integrity checks
btrfs: safely advance counter when looking up bio csums
btrfs: device stats, log when stats are zeroed
module: avoid setting info->name early in case we can fall back to info->mod->name
remoteproc: Initialize rproc_class before use
irqchip/mbigen: Set driver .suppress_bind_attrs to avoid remove problems
ALSA: hda/hdmi - add retry logic to parse_intel_hdmi()
kbuild: use -S instead of -E for precise cc-option test in Kconfig
x86/decoder: Add TEST opcode to Group3-2
s390: adjust -mpacked-stack support check for clang 10
s390/ftrace: generate traced function stack frame
driver core: platform: fix u32 greater or equal to zero comparison
ALSA: hda - Add docking station support for Lenovo Thinkpad T420s
drm/nouveau/mmu: fix comptag memory leak
powerpc/sriov: Remove VF eeh_dev state when disabling SR-IOV
bcache: cached_dev_free needs to put the sb page
iommu/vt-d: Remove unnecessary WARN_ON_ONCE()
selftests: bpf: Reset global state between reuseport test runs
jbd2: switch to use jbd2_journal_abort() when failed to submit the commit record
jbd2: make sure ESHUTDOWN to be recorded in the journal superblock
ARM: 8951/1: Fix Kexec compilation issue.
hostap: Adjust indentation in prism2_hostapd_add_sta
iwlegacy: ensure loop counter addr does not wrap and cause an infinite loop
cifs: fix NULL dereference in match_prepath
bpf: map_seq_next should always increase position index
ceph: check availability of mds cluster on mount after wait timeout
rbd: work around -Wuninitialized warning
irqchip/gic-v3: Only provision redistributors that are enabled in ACPI
drm/nouveau/disp/nv50-: prevent oops when no channel method map provided
ftrace: fpid_next() should increase position index
trigger_next should increase position index
radeon: insert 10ms sleep in dce5_crtc_load_lut
ocfs2: fix a NULL pointer dereference when call ocfs2_update_inode_fsync_trans()
lib/scatterlist.c: adjust indentation in __sg_alloc_table
reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
bcache: explicity type cast in bset_bkey_last()
irqchip/gic-v3-its: Reference to its_invall_cmd descriptor when building INVALL
iwlwifi: mvm: Fix thermal zone registration
microblaze: Prevent the overflow of the start
brd: check and limit max_part par
drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_latency
drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_voltage
NFS: Fix memory leaks
help_next should increase position index
cifs: log warning message (once) if out of disk space
virtio_balloon: prevent pfn array overflow
mlxsw: spectrum_dpipe: Add missing error path
drm/amdgpu/display: handle multiple numbers of fclks in dcn_calcs.c (v2)
Linux 4.19.106
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia1032b50dd82b42e13973120dcbf94ae7b864648
[ Upstream commit 3bed1b7b9d ]
Currently, -E (stop after the preprocessing stage) is used to check
whether the given compiler flag is supported.
While it is faster than -S (or -c), it can be false-positive. You need
to run the compilation proper to check the flag more precisely.
For example, -E and -S disagree about the support of
"--param asan-instrument-allocas=1".
$ gcc -Werror --param asan-instrument-allocas=1 -E -x c /dev/null -o /dev/null
$ echo $?
0
$ gcc -Werror --param asan-instrument-allocas=1 -S -x c /dev/null -o /dev/null
cc1: error: invalid --param name ‘asan-instrument-allocas’; did you mean ‘asan-instrument-writes’?
$ echo $?
1
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c8fb7d7e48 ]
Running randconfig on arm64 using KCONFIG_SEED=0x40C5E904 (e.g. on v5.5)
produces the .config with CONFIG_EFI=y and CONFIG_CPU_BIG_ENDIAN=y,
which does not meet the !CONFIG_CPU_BIG_ENDIAN dependency.
This is because the user choice for CONFIG_CPU_LITTLE_ENDIAN vs
CONFIG_CPU_BIG_ENDIAN is set by randomize_choice_values() after the
value of CONFIG_EFI is calculated.
When this happens, the has_changed flag should be set.
Currently, it takes the result from the last iteration. It should
accumulate all the results of the loop.
Fixes: 3b9a19e089 ("kconfig: loop as long as we changed some symbols in randconfig")
Reported-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Recently, I found that get_maintainer was causing me to send emails to
the old addresses for maintainers. Since I usually just trust the
output of get_maintainer to know the right email address, I didn't even
look carefully and fired off two patch series that went to the wrong
place. Oops.
The problem was introduced recently when trying to add signatures from
Fixes. The problem was that these email addresses were added too early
in the process of compiling our list of places to send. Things added to
the list earlier are considered more canonical and when we later added
maintainer entries we ended up deduplicating to the old address.
Here are two examples using mainline commits (to make it easier to
replicate) for the two maintainers that I messed up recently:
$ git format-patch d8549bcd0529~..d8549bcd0529
$ ./scripts/get_maintainer.pl 0001-clk-Add-clk_hw*.patch | grep Boyd
Stephen Boyd <sboyd@codeaurora.org>...
$ git format-patch 6d1238aa3395~..6d1238aa3395
$ ./scripts/get_maintainer.pl 0001-arm64-dts-qcom-qcs404*.patch | grep Andy
Andy Gross <andy.gross@linaro.org>
Let's move the adding of addresses from Fixes: to the end since the
email addresses from these are much more likely to be older.
After this patch the above examples get the right addresses for the two
examples.
Link: http://lkml.kernel.org/r/20200127095001.1.I41fba9f33590bfd92cd01960161d8384268c6569@changeid
Fixes: 2f5bd34369 ("scripts/get_maintainer.pl: add signatures from Fixes: <badcommit> lines in commit message")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 1ca84ed642 ("MAINTAINERS: Reclaim the P: tag for Maintainer
Entry Profile") changed the use of the "P:" tag from "Person" to
"Profile (ie: special subsystem coding styles and characteristics)"
Change how get_maintainer.pl parses the "P:" tag to match.
Link: http://lkml.kernel.org/r/ca53823fc5d25c0be32ad937d0207a0589c08643.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Dan Williams <dan.j.william@intel.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
https://source.android.com/security/bulletin/2020-02-01
CVE-2020-0030
CVE-2019-11599
* tag 'ASB-2020-02-05_4.19': (4206 commits)
UPSTREAM: sched/fair/util_est: Implement faster ramp-up EWMA on utilization increases
ANDROID: Re-use SUGOV_RT_MAX_FREQ to control uclamp rt behavior
BACKPORT: sched/fair: Make EAS wakeup placement consider uclamp restrictions
BACKPORT: sched/fair: Make task_fits_capacity() consider uclamp restrictions
ANDROID: sched/core: Move SchedTune task API into UtilClamp wrappers
ANDROID: sched/core: Add a latency-sensitive flag to uclamp
ANDROID: sched/tune: Move SchedTune cpu API into UtilClamp wrappers
ANDROID: init: kconfig: Only allow sched tune if !uclamp
FROMGIT: sched/core: Fix size of rq::uclamp initialization
FROMGIT: sched/uclamp: Fix a bug in propagating uclamp value in new cgroups
FROMGIT: sched/uclamp: Rename uclamp_util_with() into uclamp_rq_util_with()
FROMGIT: sched/uclamp: Make uclamp util helpers use and return UL values
FROMGIT: sched/uclamp: Remove uclamp_util()
BACKPORT: sched/rt: Make RT capacity-aware
UPSTREAM: tools headers UAPI: Sync sched.h with the kernel
UPSTREAM: sched/uclamp: Fix overzealous type replacement
UPSTREAM: sched/uclamp: Fix incorrect condition
UPSTREAM: sched/core: Fix compilation error when cgroup not selected
UPSTREAM: sched/core: Fix uclamp ABI bug, clean up and robustify sched_read_attr() ABI logic and code
UPSTREAM: sched/uclamp: Always use 'enum uclamp_id' for clamp_id values
...
Conflicts:
drivers/char/random.c
drivers/devfreq/devfreq.c
drivers/gpu/drm/drm_fb_helper.c
drivers/media/i2c/ov2680.c
drivers/media/i2c/ov2685.c
drivers/media/i2c/ov5670.c
drivers/media/i2c/ov5695.c
drivers/media/usb/uvc/uvc_driver.c
drivers/mmc/host/cqhci.c
drivers/spi/spi-rockchip.c
drivers/usb/dwc2/params.c
drivers/usb/dwc3/debugfs.c
drivers/usb/dwc3/gadget.c
drivers/usb/serial/usb_wwan.c
include/linux/clk-provider.h
include/linux/mfd/rk808.h
kernel/cpu.c
sound/usb/quirks.c
- Export symbol mm_trace_rss_stat on mm/memory.c for GPU drivers.
- Fix sound/usb/pcm.c for SNDRV_PCM_TRIGGER_SUSPEND.
- Enable DEBUG_FS which is not selected by TRACING.
- Disable of_devlink which broken boot. of_devlink is enabled by commit
ba3aa33b8f ("ANDROID: of: property: Enable of_devlink by default").
- Add CLK_DONT_HOLD_STATE and CLK_KEEP_REQ_RATE to clk_flags
on drivers/clk/clk.c.
Change-Id: I500ca1bbc735753f9c8251ed2ac8ad757d5a24a4
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
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Merge 4.19.103 into android-4.19
Changes in 4.19.103
Revert "drm/sun4i: dsi: Change the start delay calculation"
ovl: fix lseek overflow on 32bit
kernel/module: Fix memleak in module_add_modinfo_attrs()
media: iguanair: fix endpoint sanity check
ocfs2: fix oops when writing cloned file
x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR
udf: Allow writing to 'Rewritable' partitions
printk: fix exclusive_console replaying
iwlwifi: mvm: fix NVM check for 3168 devices
sparc32: fix struct ipc64_perm type definition
cls_rsvp: fix rsvp_policy
gtp: use __GFP_NOWARN to avoid memalloc warning
l2tp: Allow duplicate session creation with UDP
net: hsr: fix possible NULL deref in hsr_handle_frame()
net_sched: fix an OOB access in cls_tcindex
net: stmmac: Delete txtimer in suspend()
bnxt_en: Fix TC queue mapping.
tcp: clear tp->total_retrans in tcp_disconnect()
tcp: clear tp->delivered in tcp_disconnect()
tcp: clear tp->data_segs{in|out} in tcp_disconnect()
tcp: clear tp->segs_{in|out} in tcp_disconnect()
rxrpc: Fix use-after-free in rxrpc_put_local()
rxrpc: Fix insufficient receive notification generation
rxrpc: Fix missing active use pinning of rxrpc_local object
rxrpc: Fix NULL pointer deref due to call->conn being cleared on disconnect
media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors
mfd: dln2: More sanity checking for endpoints
ipc/msg.c: consolidate all xxxctl_down() functions
tracing: Fix sched switch start/stop refcount racy updates
rcu: Avoid data-race in rcu_gp_fqs_check_wake()
brcmfmac: Fix memory leak in brcmf_usbdev_qinit
usb: typec: tcpci: mask event interrupts when remove driver
usb: gadget: legacy: set max_speed to super-speed
usb: gadget: f_ncm: Use atomic_t to track in-flight request
usb: gadget: f_ecm: Use atomic_t to track in-flight request
ALSA: usb-audio: Fix endianess in descriptor validation
ALSA: dummy: Fix PCM format loop in proc output
mm/memory_hotplug: fix remove_memory() lockdep splat
mm: move_pages: report the number of non-attempted pages
media/v4l2-core: set pages dirty upon releasing DMA buffers
media: v4l2-core: compat: ignore native command codes
media: v4l2-rect.h: fix v4l2_rect_map_inside() top/left adjustments
lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()
irqdomain: Fix a memory leak in irq_domain_push_irq()
platform/x86: intel_scu_ipc: Fix interrupt support
ALSA: hda: Add Clevo W65_67SB the power_save blacklist
KVM: arm64: Correct PSTATE on exception entry
KVM: arm/arm64: Correct CPSR on exception entry
KVM: arm/arm64: Correct AArch32 SPSR on exception entry
KVM: arm64: Only sign-extend MMIO up to register width
MIPS: fix indentation of the 'RELOCS' message
MIPS: boot: fix typo in 'vmlinux.lzma.its' target
s390/mm: fix dynamic pagetable upgrade for hugetlbfs
powerpc/xmon: don't access ASDR in VMs
powerpc/pseries: Advance pfn if section is not present in lmb_is_removable()
smb3: fix signing verification of large reads
PCI: tegra: Fix return value check of pm_runtime_get_sync()
mmc: spi: Toggle SPI polarity, do not hardcode it
ACPI: video: Do not export a non working backlight interface on MSI MS-7721 boards
ACPI / battery: Deal with design or full capacity being reported as -1
ACPI / battery: Use design-cap for capacity calculations if full-cap is not available
ACPI / battery: Deal better with neither design nor full capacity not being reported
alarmtimer: Unregister wakeup source when module get fails
ubifs: Reject unsupported ioctl flags explicitly
ubifs: don't trigger assertion on invalid no-key filename
ubifs: Fix FS_IOC_SETFLAGS unexpectedly clearing encrypt flag
ubifs: Fix deadlock in concurrent bulk-read and writepage
crypto: geode-aes - convert to skcipher API and make thread-safe
PCI: keystone: Fix link training retries initiation
mmc: sdhci-of-at91: fix memleak on clk_get failure
hv_balloon: Balloon up according to request page number
mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile
crypto: api - Check spawn->alg under lock in crypto_drop_spawn
crypto: ccree - fix backlog memory leak
crypto: ccree - fix pm wrongful error reporting
crypto: ccree - fix PM race condition
scripts/find-unused-docs: Fix massive false positives
scsi: qla2xxx: Fix mtcp dump collection failure
power: supply: ltc2941-battery-gauge: fix use-after-free
ovl: fix wrong WARN_ON() in ovl_cache_update_ino()
f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project()
f2fs: fix miscounted block limit in f2fs_statfs_project()
f2fs: code cleanup for f2fs_statfs_project()
PM: core: Fix handling of devices deleted during system-wide resume
of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc
dm zoned: support zone sizes smaller than 128MiB
dm space map common: fix to ensure new block isn't already in use
dm crypt: fix benbi IV constructor crash if used in authenticated mode
dm: fix potential for q->make_request_fn NULL pointer
dm writecache: fix incorrect flush sequence when doing SSD mode commit
padata: Remove broken queue flushing
tracing: Annotate ftrace_graph_hash pointer with __rcu
tracing: Annotate ftrace_graph_notrace_hash pointer with __rcu
ftrace: Add comment to why rcu_dereference_sched() is open coded
ftrace: Protect ftrace_graph_hash with ftrace_sync
samples/bpf: Don't try to remove user's homedir on clean
crypto: ccp - set max RSA modulus size for v3 platform devices as well
crypto: pcrypt - Do not clear MAY_SLEEP flag in original request
crypto: atmel-aes - Fix counter overflow in CTR mode
crypto: api - Fix race condition in crypto_spawn_alg
crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill
scsi: qla2xxx: Fix unbound NVME response length
NFS: Fix memory leaks and corruption in readdir
NFS: Directory page cache pages need to be locked when read
jbd2_seq_info_next should increase position index
Btrfs: fix missing hole after hole punching and fsync when using NO_HOLES
btrfs: set trans->drity in btrfs_commit_transaction
Btrfs: fix race between adding and putting tree mod seq elements and nodes
ARM: tegra: Enable PLLP bypass during Tegra124 LP1
iwlwifi: don't throw error when trying to remove IGTK
mwifiex: fix unbalanced locking in mwifiex_process_country_ie()
sunrpc: expiry_time should be seconds not timeval
gfs2: move setting current->backing_dev_info
gfs2: fix O_SYNC write handling
drm/rect: Avoid division by zero
media: rc: ensure lirc is initialized before registering input device
tools/kvm_stat: Fix kvm_exit filter name
xen/balloon: Support xend-based toolstack take two
watchdog: fix UAF in reboot notifier handling in watchdog core code
bcache: add readahead cache policy options via sysfs interface
eventfd: track eventfd_signal() recursion depth
aio: prevent potential eventfd recursion on poll
KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks
KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks
KVM: x86: Protect pmu_intel.c from Spectre-v1/L1TF attacks
KVM: x86: Protect DR-based index computations from Spectre-v1/L1TF attacks
KVM: x86: Protect kvm_lapic_reg_write() from Spectre-v1/L1TF attacks
KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks
KVM: x86: Protect ioapic_write_indirect() from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks
KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations from Spectre-v1/L1TF attacks in x86.c
KVM: x86: Protect x86_decode_insn from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks
KVM: x86: Fix potential put_fpu() w/o load_fpu() on MPX platform
KVM: PPC: Book3S HV: Uninit vCPU if vcore creation fails
KVM: PPC: Book3S PR: Free shared page if mmu initialization fails
x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
KVM: x86: Don't let userspace set host-reserved cr4 bits
KVM: x86: Free wbinvd_dirty_mask if vCPU creation fails
KVM: s390: do not clobber registers during guest reset/store status
clk: tegra: Mark fuse clock as critical
drm/amd/dm/mst: Ignore payload update failures
percpu: Separate decrypted varaibles anytime encryption can be enabled
scsi: qla2xxx: Fix the endianness of the qla82xx_get_fw_size() return type
scsi: csiostor: Adjust indentation in csio_device_reset
scsi: qla4xxx: Adjust indentation in qla4xxx_mem_free
scsi: ufs: Recheck bkops level if bkops is disabled
phy: qualcomm: Adjust indentation in read_poll_timeout
ext2: Adjust indentation in ext2_fill_super
powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize
drm: msm: mdp4: Adjust indentation in mdp4_dsi_encoder_enable
NFC: pn544: Adjust indentation in pn544_hci_check_presence
ppp: Adjust indentation into ppp_async_input
net: smc911x: Adjust indentation in smc911x_phy_configure
net: tulip: Adjust indentation in {dmfe, uli526x}_init_module
IB/mlx5: Fix outstanding_pi index for GSI qps
IB/core: Fix ODP get user pages flow
nfsd: fix delay timer on 32-bit architectures
nfsd: fix jiffies/time_t mixup in LRU list
nfsd: Return the correct number of bytes written to the file
ubi: fastmap: Fix inverted logic in seen selfcheck
ubi: Fix an error pointer dereference in error handling code
mfd: da9062: Fix watchdog compatible string
mfd: rn5t618: Mark ADC control register volatile
bonding/alb: properly access headers in bond_alb_xmit()
net: dsa: bcm_sf2: Only 7278 supports 2Gb/sec IMP port
net: mvneta: move rx_dropped and rx_errors in per-cpu stats
net_sched: fix a resource leak in tcindex_set_parms()
net: systemport: Avoid RBUF stuck in Wake-on-LAN mode
net/mlx5: IPsec, Fix esp modify function attribute
net/mlx5: IPsec, fix memory leak at mlx5_fpga_ipsec_delete_sa_ctx
net: macb: Remove unnecessary alignment check for TSO
net: macb: Limit maximum GEM TX length in TSO
net: dsa: b53: Always use dev->vlan_enabled in b53_configure_vlan()
ext4: fix deadlock allocating crypto bounce page from mempool
btrfs: use bool argument in free_root_pointers()
btrfs: free block groups after free'ing fs trees
drm: atmel-hlcdc: enable clock before configuring timing engine
drm/dp_mst: Remove VCPI while disabling topology mgr
btrfs: flush write bio if we loop in extent_write_cache_pages
KVM: x86/mmu: Apply max PA check for MMIO sptes to 32-bit KVM
KVM: x86: Use gpa_t for cr2/gpa to fix TDP support on 32-bit KVM
KVM: VMX: Add non-canonical check on writes to RTIT address MSRs
KVM: nVMX: vmread should not set rflags to specify success in case of #PF
KVM: Use vcpu-specific gva->hva translation when querying host page size
KVM: Play nice with read-only memslots when querying host page size
mm: zero remaining unavailable struct pages
mm: return zero_resv_unavail optimization
mm/page_alloc.c: fix uninitialized memmaps on a partially populated last section
cifs: fail i/o on soft mounts if sessionsetup errors out
x86/apic/msi: Plug non-maskable MSI affinity race
clocksource: Prevent double add_timer_on() for watchdog_timer
perf/core: Fix mlock accounting in perf_mmap()
rxrpc: Fix service call disconnection
Linux 4.19.103
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0d7f09085c3541373e0fd6b2e3ffacc5e34f7d55
commit 1630146db2 upstream.
scripts/find-unused-docs.sh invokes scripts/kernel-doc to find out if a
source file contains kerneldoc or not.
However, as it passes the no longer supported "-text" option to
scripts/kernel-doc, the latter prints out its help text, causing all
files to be considered containing kerneldoc.
Get rid of these false positives by removing the no longer supported
"-text" option from the scripts/kernel-doc invocation.
Cc: stable@vger.kernel.org # 4.16+
Fixes: b051426753 ("scripts: kernel-doc: get rid of unused output formats")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200127093107.26401-1-geert+renesas@glider.be
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Query ld cache for versions of both libc and libcpp run-time, instead
of querying /proc/self/maps for libc run-time, and ld cache for libcpp
run-time, thus reducing code size and complexity.
Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Link: https://lore.kernel.org/r/20200209140057.20181-1-alexander.kapshuk@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since commit 56d5893615 ("kbuild: do not create orphan built-in.a or
obj-y objects"), scripts/link-vmlinux.sh does nothing when descending
into init/.
Once the version number becomes out of sync between .version and
include/generated/compile.h, it is not self-healing.
[How to reproduce]
$ echo 100 > .version
$ make
You will see the number in the .version is always bigger than that in
compile.h by one. After this, every time you run 'make', the vmlinux is
re-linked even when none of source files is updated.
Fixes: 56d5893615 ("kbuild: do not create orphan built-in.a or obj-y objects")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
memcpy() writes one more byte than allocated.
Fixes: 8d60526999 ("scripts/kallsyms: change table to store (strcut sym_entry *)")
Reported-by: youling257 <youling257@gmail.com>
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Pavel Machek <pavel@ucw.cz>
Merge right before the filesystem parsing happened to make merges
easier.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7d2449b3876e6fbd96838f703f13f2c0a7ec0354
- fix randconfig to generate a sane .config
- rename hostprogs-y / always to hostprogs / always-y, which are
more natual syntax.
- optimize scripts/kallsyms
- fix yes2modconfig and mod2yesconfig
- make multiple directory targets ('make foo/ bar/') work
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Merge tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- fix randconfig to generate a sane .config
- rename hostprogs-y / always to hostprogs / always-y, which are more
natual syntax.
- optimize scripts/kallsyms
- fix yes2modconfig and mod2yesconfig
- make multiple directory targets ('make foo/ bar/') work
* tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: make multiple directory targets work
kconfig: Invalidate all symbols after changing to y or m.
kallsyms: fix type of kallsyms_token_table[]
scripts/kallsyms: change table to store (strcut sym_entry *)
scripts/kallsyms: rename local variables in read_symbol()
kbuild: rename hostprogs-y/always to hostprogs/always-y
kbuild: fix the document to use extra-y for vmlinux.lds
kconfig: fix broken dependency in randconfig-generated .config
Another "small" merge point to handle conflicts in a sane way.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5dc2f5f11275b29f3c9b5b8d4dd59864ceb6faf9
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Merge tag 'docs-5.6-2' of git://git.lwn.net/linux
Pull Documentation fixes from Jonathan Corbet:
"A handful of small documentation fixes that wandered in"
* tag 'docs-5.6-2' of git://git.lwn.net/linux:
Allow git builds of Sphinx
Documentation: changes.rst: update several outdated project URLs
Documentation: build warnings related to missing blank lines after explicit markups has been fixed
mailmap: add entry for Tiezhu Yang
Documentation/ko_KR/howto: Update a broken link
Documentation/ko_KR/howto: Update broken web addresses
docs/locking: Fix outdated section names
When using a non-release version of Sphinx, from a local build (with
improvements for kernel doc handling, why not),
sphinx-build --version
reports versions of the form
sphinx-build 3.0.0+/4703d9119972
i.e. base version, a plus symbol, slash, and the start of the git hash
of whatever repository the command is run in (no, not the hash that
was used to build Sphinx!).
This patch fixes the installation check in sphinx-pre-install to
recognise such version output.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Link: https://lore.kernel.org/r/20200124183316.1719218-1-steve@sk2.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since commit 89b9060987 ("kconfig: Add yes2modconfig and
mod2yesconfig targets.") forgot to clear SYMBOL_VALID bit after
changing to y or m, these targets did not save the changes.
Call sym_clear_all_valid() so that all symbols are revalidated.
Fixes: 89b9060987 ("kconfig: Add yes2modconfig and mod2yesconfig targets.")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Since 5.5-rc1 the last user of this function is gone, so remove the
functionality.
See commit
2ad9d7747c ("netfilter: conntrack: free extension area immediately")
for details.
Link: http://lkml.kernel.org/r/20191212223442.22141-1-fw@strlen.de
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The symbol table is extended every 10000 addition by using realloc(),
where data copy might occur to the new buffer.
To decrease the amount of possible data copy, let's change the table
to store the pointer.
The symbol type + symbol name part is appended at the end of
(struct sym_entry), and allocated together with the struct body.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
I will use 'sym' for the point to struce sym_entry in the next commit.
Rename 'sym', 'stype' to 'name', 'type', which are more intuitive.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In old days, the "host-progs" syntax was used for specifying host
programs. It was renamed to the current "hostprogs-y" in 2004.
It is typically useful in scripts/Makefile because it allows Kbuild to
selectively compile host programs based on the kernel configuration.
This commit renames like follows:
always -> always-y
hostprogs-y -> hostprogs
So, scripts/Makefile will look like this:
always-$(CONFIG_BUILD_BIN2C) += ...
always-$(CONFIG_KALLSYMS) += ...
...
hostprogs := $(always-y) $(always-m)
I think this makes more sense because a host program is always a host
program, irrespective of the kernel configuration. We want to specify
which ones to compile by CONFIG options, so always-y will be handier.
The "always", "hostprogs-y", "hostprogs-m" will be kept for backward
compatibility for a while.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Running randconfig on arm64 using KCONFIG_SEED=0x40C5E904 (e.g. on v5.5)
produces the .config with CONFIG_EFI=y and CONFIG_CPU_BIG_ENDIAN=y,
which does not meet the !CONFIG_CPU_BIG_ENDIAN dependency.
This is because the user choice for CONFIG_CPU_LITTLE_ENDIAN vs
CONFIG_CPU_BIG_ENDIAN is set by randomize_choice_values() after the
value of CONFIG_EFI is calculated.
When this happens, the has_changed flag should be set.
Currently, it takes the result from the last iteration. It should
accumulate all the results of the loop.
Fixes: 3b9a19e089 ("kconfig: loop as long as we changed some symbols in randconfig")
Reported-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Baby steps in the 5.6-rc1 merge cycle to make things easier to review
and debug.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2d3a69b5256f71ae18b500b0ef145f93e4255dbc
- add 'yes2modconfig' and 'mod2yesconfig' targets
- sanitize help text
- various code cleanups
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Merge tag 'kconfig-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- add 'yes2modconfig' and 'mod2yesconfig' targets (useful mainly for
turning syzbot configs into more modular ones as a step to minimizing
the result)
- sanitize help text
- various code cleanups
* tag 'kconfig-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: fix documentation typos
kconfig: fix an "implicit declaration of function" warning
kconfig: fix nesting of symbol help text
kconfig: distinguish between dependencies and visibility in help text
kconfig: list all definitions of a symbol in help text
kconfig: Add yes2modconfig and mod2yesconfig targets.
kconfig: use $(PERL) in Makefile
kconfig: fix too deep indentation in Makefile
kconfig: localmodconfig: fix indentation for closing brace
kconfig: localmodconfig: remove unused $config
kconfig: squash prop_alloc() into menu_add_prop()
kconfig: remove sym from struct property
kconfig: remove 'prompt' argument from menu_add_prop()
kconfig: move prompt handling to menu_add_prompt() from menu_add_prop()
kconfig: remove 'prompt' symbol
kconfig: drop T_WORD from the RHS of 'prompt' symbol
kconfig: use parent->dep as the parentdep of 'menu'
kconfig: remove the rootmenu check in menu_add_prop()
- detect missing include guard in UAPI headers
- do not create orphan built-in.a or obj-y objects
- generate modules.builtin more simply, and drop tristate.conf
- simplify built-in initramfs creation
- make linux-headers deb package thinner
- optimize the deb package build script
- misc cleanups
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Merge tag 'kbuild-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- detect missing include guard in UAPI headers
- do not create orphan built-in.a or obj-y objects
- generate modules.builtin more simply, and drop tristate.conf
- simplify built-in initramfs creation
- make linux-headers deb package thinner
- optimize the deb package build script
- misc cleanups
* tag 'kbuild-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
builddeb: split libc headers deployment out into a function
builddeb: split kernel headers deployment out into a function
builddeb: remove redundant make for ARCH=um
builddeb: avoid invoking sub-shells where possible
builddeb: remove redundant $objtree/
builddeb: match temporary directory name to the package name
builddeb: remove unneeded files in hdrobjfiles for headers package
kbuild: use -S instead of -E for precise cc-option test in Kconfig
builddeb: allow selection of .deb compressor
kbuild: remove 'Building modules, stage 2.' log
kbuild: remove *.tmp file when filechk fails
kbuild: remove PYTHON2 variable
modpost: assume STT_SPARC_REGISTER is defined
gen_initramfs.sh: remove intermediate cpio_list on errors
initramfs: refactor the initramfs build rules
gen_initramfs.sh: always output cpio even without -o option
initramfs: add default_cpio_list, and delete -d option support
initramfs: generate dependency list and cpio at the same time
initramfs: specify $(src)/gen_initramfs.sh as a prerequisite in Makefile
initramfs: make initramfs compression choice non-optional
...
Pull updates from Andrew Morton:
"Most of -mm and quite a number of other subsystems: hotfixes, scripts,
ocfs2, misc, lib, binfmt, init, reiserfs, exec, dma-mapping, kcov.
MM is fairly quiet this time. Holidays, I assume"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
kcov: ignore fault-inject and stacktrace
include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc()
execve: warn if process starts with executable stack
reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
init/main.c: fix misleading "This architecture does not have kernel memory protection" message
init/main.c: fix quoted value handling in unknown_bootoption
init/main.c: remove unnecessary repair_env_string in do_initcall_level
init/main.c: log arguments and environment passed to init
fs/binfmt_elf.c: coredump: allow process with empty address space to coredump
fs/binfmt_elf.c: coredump: delete duplicated overflow check
fs/binfmt_elf.c: coredump: allocate core ELF header on stack
fs/binfmt_elf.c: make BAD_ADDR() unlikely
fs/binfmt_elf.c: better codegen around current->mm
fs/binfmt_elf.c: don't copy ELF header around
fs/binfmt_elf.c: fix ->start_code calculation
fs/binfmt_elf.c: smaller code generation around auxv vector fill
lib/find_bit.c: uninline helper _find_next_bit()
lib/find_bit.c: join _find_next_bit{_le}
uapi: rename ext2_swab() to swab() and share globally in swab.h
lib/scatterlist.c: adjust indentation in __sg_alloc_table
...
Here are some of the common spelling mistakes and typos that I've found
while fixing up spelling mistakes in the kernel. Most of them still
exist in more than two source files.
Link: http://lkml.kernel.org/r/20191229143626.51238-1-xndchn@gmail.com
Signed-off-by: Xiong <xndchn@gmail.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Chris Paterson <chris.paterson2@renesas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Baby steps in the 5.6-rc1 merge cycle to make things easier to review
and debug.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4c44b3c32065ea0ed8175b31665f2a4195a27300
Baby steps in the 5.6-rc1 merge cycle to make things easier to review
and debug.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I005e68433be6b1d66bd56d7e1c8f44ab8e78bebe
couple of things of note:
- Conversion of the NFS documentation to RST
- A new document on how to help with documentation (and a maintainer
profile entry too)
Plus the usual collection of typo fixes, etc.
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Merge tag 'docs-5.6' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It has been a relatively quiet cycle for documentation, but there's
still a couple of things of note:
- Conversion of the NFS documentation to RST
- A new document on how to help with documentation (and a maintainer
profile entry too)
Plus the usual collection of typo fixes, etc"
* tag 'docs-5.6' of git://git.lwn.net/linux: (40 commits)
docs: filesystems: add overlayfs to index.rst
docs: usb: remove some broken references
scripts/find-unused-docs: Fix massive false positives
docs: nvdimm: use ReST notation for subsection
zram: correct documentation about sysfs node of huge page writeback
Documentation: zram: various fixes in zram.rst
Add a maintainer entry profile for documentation
Add a document on how to contribute to the documentation
docs: Keep up with the location of NoUri
Documentation: Call out example SYM_FUNC_* usage as x86-specific
Documentation: nfs: fault_injection: convert to ReST
Documentation: nfs: pnfs-scsi-server: convert to ReST
Documentation: nfs: convert pnfs-block-server to ReST
Documentation: nfs: idmapper: convert to ReST
Documentation: convert nfsd-admin-interfaces to ReST
Documentation: nfs-rdma: convert to ReST
Documentation: nfsroot.rst: COSMETIC: refill a paragraph
Documentation: nfsroot.txt: convert to ReST
Documentation: convert nfs.txt to ReST
Documentation: filesystems: convert vfat.txt to RST
...
Here are the big set of tty and serial driver updates for 5.6-rc1
Included in here are:
- dummy_con cleanups (touches lots of arch code)
- sysrq logic cleanups (touches lots of serial drivers)
- samsung driver fixes (wasn't really being built)
- conmakeshash move to tty subdir out of scripts
- lots of small tty/serial driver updates
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here are the big set of tty and serial driver updates for 5.6-rc1
Included in here are:
- dummy_con cleanups (touches lots of arch code)
- sysrq logic cleanups (touches lots of serial drivers)
- samsung driver fixes (wasn't really being built)
- conmakeshash move to tty subdir out of scripts
- lots of small tty/serial driver updates
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
tty: n_hdlc: Use flexible-array member and struct_size() helper
tty: baudrate: SPARC supports few more baud rates
tty: baudrate: Synchronise baud_table[] and baud_bits[]
tty: serial: meson_uart: Add support for kernel debugger
serial: imx: fix a race condition in receive path
serial: 8250_bcm2835aux: Document struct bcm2835aux_data
serial: 8250_bcm2835aux: Use generic remapping code
serial: 8250_bcm2835aux: Allocate uart_8250_port on stack
serial: 8250_bcm2835aux: Suppress register_port error on -EPROBE_DEFER
serial: 8250_bcm2835aux: Suppress clk_get error on -EPROBE_DEFER
serial: 8250_bcm2835aux: Fix line mismatch on driver unbind
serial_core: Remove unused member in uart_port
vt: Correct comment documenting do_take_over_console()
vt: Delete comment referencing non-existent unbind_con_driver()
arch/xtensa/setup: Drop dummy_con initialization
arch/x86/setup: Drop dummy_con initialization
arch/unicore32/setup: Drop dummy_con initialization
arch/sparc/setup: Drop dummy_con initialization
arch/sh/setup: Drop dummy_con initialization
arch/s390/setup: Drop dummy_con initialization
...
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Merge 4.19.100 into android-4.19
Changes in 4.19.100
can, slip: Protect tty->disc_data in write_wakeup and close with RCU
firestream: fix memory leaks
gtp: make sure only SOCK_DGRAM UDP sockets are accepted
ipv6: sr: remove SKB_GSO_IPXIP6 on End.D* actions
net: bcmgenet: Use netif_tx_napi_add() for TX NAPI
net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM
net: ip6_gre: fix moving ip6gre between namespaces
net, ip6_tunnel: fix namespaces move
net, ip_tunnel: fix namespaces move
net: rtnetlink: validate IFLA_MTU attribute in rtnl_create_link()
net_sched: fix datalen for ematch
net-sysfs: Fix reference count leak in rx|netdev_queue_add_kobject
net-sysfs: fix netdev_queue_add_kobject() breakage
net-sysfs: Call dev_hold always in netdev_queue_add_kobject
net-sysfs: Call dev_hold always in rx_queue_add_kobject
net-sysfs: Fix reference count leak
net: usb: lan78xx: Add .ndo_features_check
Revert "udp: do rmem bulk free even if the rx sk queue is empty"
tcp_bbr: improve arithmetic division in bbr_update_bw()
tcp: do not leave dangling pointers in tp->highest_sack
tun: add mutex_unlock() call and napi.skb clearing in tun_get_user()
afs: Fix characters allowed into cell names
hwmon: (adt7475) Make volt2reg return same reg as reg2volt input
hwmon: (core) Do not use device managed functions for memory allocations
PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken
tracing: trigger: Replace unneeded RCU-list traversals
Input: keyspan-remote - fix control-message timeouts
Revert "Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers"
ARM: 8950/1: ftrace/recordmcount: filter relocation types
mmc: tegra: fix SDR50 tuning override
mmc: sdhci: fix minimum clock rate for v3 controller
Documentation: Document arm64 kpti control
Input: pm8xxx-vib - fix handling of separate enable register
Input: sur40 - fix interface sanity checks
Input: gtco - fix endpoint sanity check
Input: aiptek - fix endpoint sanity check
Input: pegasus_notetaker - fix endpoint sanity check
Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register
netfilter: nft_osf: add missing check for DREG attribute
hwmon: (nct7802) Fix voltage limits to wrong registers
scsi: RDMA/isert: Fix a recently introduced regression related to logout
tracing: xen: Ordered comparison of function pointers
do_last(): fetch directory ->i_mode and ->i_uid before it's too late
net/sonic: Add mutual exclusion for accessing shared state
net/sonic: Clear interrupt flags immediately
net/sonic: Use MMIO accessors
net/sonic: Fix interface error stats collection
net/sonic: Fix receive buffer handling
net/sonic: Avoid needless receive descriptor EOL flag updates
net/sonic: Improve receive descriptor status flag check
net/sonic: Fix receive buffer replenishment
net/sonic: Quiesce SONIC before re-initializing descriptor memory
net/sonic: Fix command register usage
net/sonic: Fix CAM initialization
net/sonic: Prevent tx watchdog timeout
tracing: Use hist trigger's var_ref array to destroy var_refs
tracing: Remove open-coding of hist trigger var_ref management
tracing: Fix histogram code when expression has same var as value
sd: Fix REQ_OP_ZONE_REPORT completion handling
crypto: geode-aes - switch to skcipher for cbc(aes) fallback
coresight: etb10: Do not call smp_processor_id from preemptible
coresight: tmc-etf: Do not call smp_processor_id from preemptible
libertas: Fix two buffer overflows at parsing bss descriptor
media: v4l2-ioctl.c: zero reserved fields for S/TRY_FMT
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
netfilter: ipset: use bitmap infrastructure completely
netfilter: nf_tables: add __nft_chain_type_get()
net/x25: fix nonblocking connect
mm/memory_hotplug: make remove_memory() take the device_hotplug_lock
mm, sparse: drop pgdat_resize_lock in sparse_add/remove_one_section()
mm, sparse: pass nid instead of pgdat to sparse_add_one_section()
drivers/base/memory.c: remove an unnecessary check on NR_MEM_SECTIONS
mm, memory_hotplug: add nid parameter to arch_remove_memory
mm/memory_hotplug: release memory resource after arch_remove_memory()
drivers/base/memory.c: clean up relics in function parameters
mm, memory_hotplug: update a comment in unregister_memory()
mm/memory_hotplug: make unregister_memory_section() never fail
mm/memory_hotplug: make __remove_section() never fail
powerpc/mm: Fix section mismatch warning
mm/memory_hotplug: make __remove_pages() and arch_remove_memory() never fail
s390x/mm: implement arch_remove_memory()
mm/memory_hotplug: allow arch_remove_memory() without CONFIG_MEMORY_HOTREMOVE
drivers/base/memory: pass a block_id to init_memory_block()
mm/memory_hotplug: create memory block devices after arch_add_memory()
mm/memory_hotplug: remove memory block devices before arch_remove_memory()
mm/memory_hotplug: make unregister_memory_block_under_nodes() never fail
mm/memory_hotplug: remove "zone" parameter from sparse_remove_one_section
mm/hotplug: kill is_dev_zone() usage in __remove_pages()
drivers/base/node.c: simplify unregister_memory_block_under_nodes()
mm/memunmap: don't access uninitialized memmap in memunmap_pages()
mm/memory_hotplug: fix try_offline_node()
mm/memory_hotplug: shrink zones when offlining memory
Linux 4.19.100
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1664d6d4de9358bff5632c291a26e1401ec7b5f1
commit 927d780ee3 upstream.
Scenario 1, ARMv7
=================
If code in arch/arm/kernel/ftrace.c would operate on mcount() pointer
the following may be generated:
00000230 <prealloc_fixed_plts>:
230: b5f8 push {r3, r4, r5, r6, r7, lr}
232: b500 push {lr}
234: f7ff fffe bl 0 <__gnu_mcount_nc>
234: R_ARM_THM_CALL __gnu_mcount_nc
238: f240 0600 movw r6, #0
238: R_ARM_THM_MOVW_ABS_NC __gnu_mcount_nc
23c: f8d0 1180 ldr.w r1, [r0, #384] ; 0x180
FTRACE currently is not able to deal with it:
WARNING: CPU: 0 PID: 0 at .../kernel/trace/ftrace.c:1979 ftrace_bug+0x1ad/0x230()
...
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.116-... #1
...
[<c0314e3d>] (unwind_backtrace) from [<c03115e9>] (show_stack+0x11/0x14)
[<c03115e9>] (show_stack) from [<c051a7f1>] (dump_stack+0x81/0xa8)
[<c051a7f1>] (dump_stack) from [<c0321c5d>] (warn_slowpath_common+0x69/0x90)
[<c0321c5d>] (warn_slowpath_common) from [<c0321cf3>] (warn_slowpath_null+0x17/0x1c)
[<c0321cf3>] (warn_slowpath_null) from [<c038ee9d>] (ftrace_bug+0x1ad/0x230)
[<c038ee9d>] (ftrace_bug) from [<c038f1f9>] (ftrace_process_locs+0x27d/0x444)
[<c038f1f9>] (ftrace_process_locs) from [<c08915bd>] (ftrace_init+0x91/0xe8)
[<c08915bd>] (ftrace_init) from [<c0885a67>] (start_kernel+0x34b/0x358)
[<c0885a67>] (start_kernel) from [<00308095>] (0x308095)
---[ end trace cb88537fdc8fa200 ]---
ftrace failed to modify [<c031266c>] prealloc_fixed_plts+0x8/0x60
actual: 44:f2:e1:36
ftrace record flags: 0
(0) expected tramp: c03143e9
Scenario 2, ARMv4T
==================
ftrace: allocating 14435 entries in 43 pages
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at kernel/trace/ftrace.c:2029 ftrace_bug+0x204/0x310
CPU: 0 PID: 0 Comm: swapper Not tainted 4.19.5 #1
Hardware name: Cirrus Logic EDB9302 Evaluation Board
[<c0010a24>] (unwind_backtrace) from [<c000ecb0>] (show_stack+0x20/0x2c)
[<c000ecb0>] (show_stack) from [<c03c72e8>] (dump_stack+0x20/0x30)
[<c03c72e8>] (dump_stack) from [<c0021c18>] (__warn+0xdc/0x104)
[<c0021c18>] (__warn) from [<c0021d7c>] (warn_slowpath_null+0x4c/0x5c)
[<c0021d7c>] (warn_slowpath_null) from [<c0095360>] (ftrace_bug+0x204/0x310)
[<c0095360>] (ftrace_bug) from [<c04dabac>] (ftrace_init+0x3b4/0x4d4)
[<c04dabac>] (ftrace_init) from [<c04cef4c>] (start_kernel+0x20c/0x410)
[<c04cef4c>] (start_kernel) from [<00000000>] ( (null))
---[ end trace 0506a2f5dae6b341 ]---
ftrace failed to modify
[<c000c350>] perf_trace_sys_exit+0x5c/0xe8
actual: 1e:ff:2f:e1
Initializing ftrace call sites
ftrace record flags: 0
(0)
expected tramp: c000fb24
The analysis for this problem has been already performed previously,
refer to the link below.
Fix the above problems by allowing only selected reloc types in
__mcount_loc. The list itself comes from the legacy recordmcount.pl
script.
Link: https://lore.kernel.org/lkml/56961010.6000806@pengutronix.de/
Cc: stable@vger.kernel.org
Fixes: ed60453fa8 ("ARM: 6511/1: ftrace: add ARM support for C version of recordmcount")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull networking updates from David Miller:
1) Add WireGuard
2) Add HE and TWT support to ath11k driver, from John Crispin.
3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.
4) Add variable window congestion control to TIPC, from Jon Maloy.
5) Add BCM84881 PHY driver, from Russell King.
6) Start adding netlink support for ethtool operations, from Michal
Kubecek.
7) Add XDP drop and TX action support to ena driver, from Sameeh
Jubran.
8) Add new ipv4 route notifications so that mlxsw driver does not have
to handle identical routes itself. From Ido Schimmel.
9) Add BPF dynamic program extensions, from Alexei Starovoitov.
10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.
11) Add support for macsec HW offloading, from Antoine Tenart.
12) Add initial support for MPTCP protocol, from Christoph Paasch,
Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.
13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
Cherian, and others.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
udp: segment looped gso packets correctly
netem: change mailing list
qed: FW 8.42.2.0 debug features
qed: rt init valid initialization changed
qed: Debug feature: ilt and mdump
qed: FW 8.42.2.0 Add fw overlay feature
qed: FW 8.42.2.0 HSI changes
qed: FW 8.42.2.0 iscsi/fcoe changes
qed: Add abstraction for different hsi values per chip
qed: FW 8.42.2.0 Additional ll2 type
qed: Use dmae to write to widebus registers in fw_funcs
qed: FW 8.42.2.0 Parser offsets modified
qed: FW 8.42.2.0 Queue Manager changes
qed: FW 8.42.2.0 Expose new registers and change windows
qed: FW 8.42.2.0 Internal ram offsets modifications
MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
Documentation: net: octeontx2: Add RVU HW and drivers overview
octeontx2-pf: ethtool RSS config support
octeontx2-pf: Add basic ethtool support
...
The commands surrounded by ( ... ) is run in a sub-shell, but you do
not have to spawn a sub-shell for every single line.
Use just one ( ... ) for creating debian/hdrsrcfiles.
For tar, use -C option instead.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This script works only when it is invoked in the $objtree, that is,
it is already relying on $objtree is '.'
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The temporary directory names, debian/hdrtmp (linux-headers package)
vs debian/headertmp (linux-libc-dev package), are confusing.
Matching the directory name to the package name is clearer, IMHO.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
- We do not need tools/objtool/fixdep or tools/objtool/sync-check.sh
for building external modules. Including tools/objtool/objtool is
enough.
- gcc-common.h is a check-in file. I do not see any point to search
for it in objtree.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Pull objtool updates from Ingo Molnar:
"The main changes are to move the ORC unwind table sorting from early
init to build-time - this speeds up booting.
No change in functionality intended"
* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/unwind/orc: Fix !CONFIG_MODULES build warning
x86/unwind/orc: Remove boot-time ORC unwind tables sorting
scripts/sorttable: Implement build-time ORC unwind table sorting
scripts/sorttable: Rename 'sortextable' to 'sorttable'
scripts/sortextable: Refactor the do_func() function
scripts/sortextable: Remove dead code
scripts/sortextable: Clean up the code to meet the kernel coding style better
scripts/sortextable: Rewrite error/success handling
This reverts upstream commit 18d7b2f4ee45fec422b7d82bab0b3c762ee907e4. A
revert in upstream dtc is pending.
This commit didn't work for properties such as 'interrupt-map' that have
phandle in the middle of an entry. It would also not work for a 0 or -1
phandle value that acts as a NULL.
Signed-off-by: Rob Herring <robh@kernel.org>
scripts/find-unused-docs.sh invokes scripts/kernel-doc to find out if a
source file contains kerneldoc or not.
However, as it passes the no longer supported "-text" option to
scripts/kernel-doc, the latter prints out its help text, causing all
files to be considered containing kerneldoc.
Get rid of these false positives by removing the no longer supported
"-text" option from the scripts/kernel-doc invocation.
Cc: stable@vger.kernel.org # 4.16+
Fixes: b051426753 ("scripts: kernel-doc: get rid of unused output formats")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200127093107.26401-1-geert+renesas@glider.be
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
- remove ioremap_nocache given that is is equivalent to
ioremap everywhere
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Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
Pull ioremap updates from Christoph Hellwig:
"Remove the ioremap_nocache API (plus wrappers) that are always
identical to ioremap"
* tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap:
remove ioremap_nocache and devm_ioremap_nocache
MIPS: define ioremap_nocache to ioremap
- New architecture features
* Support for Armv8.5 E0PD, which benefits KASLR in the same way as
KPTI but without the overhead. This allows KPTI to be disabled on
CPUs that are not affected by Meltdown, even is KASLR is enabled.
* Initial support for the Armv8.5 RNG instructions, which claim to
provide access to a high bandwidth, cryptographically secure hardware
random number generator. As well as exposing these to userspace, we
also use them as part of the KASLR seed and to seed the crng once
all CPUs have come online.
* Advertise a bunch of new instructions to userspace, including support
for Data Gathering Hint, Matrix Multiply and 16-bit floating point.
- Kexec
* Cleanups in preparation for relocating with the MMU enabled
* Support for loading crash dump kernels with kexec_file_load()
- Perf and PMU drivers
* Cleanups and non-critical fixes for a couple of system PMU drivers
- FPU-less (aka broken) CPU support
* Considerable fixes to support CPUs without the FP/SIMD extensions,
including their presence in heterogeneous systems. Good luck finding
a 64-bit userspace that handles this.
- Modern assembly function annotations
* Start migrating our use of ENTRY() and ENDPROC() over to the
new-fangled SYM_{CODE,FUNC}_{START,END} macros, which are intended to
aid debuggers
- Kbuild
* Cleanup detection of LSE support in the assembler by introducing
'as-instr'
* Remove compressed Image files when building clean targets
- IP checksumming
* Implement optimised IPv4 checksumming routine when hardware offload
is not in use. An IPv6 version is in the works, pending testing.
- Hardware errata
* Work around Cortex-A55 erratum #1530923
- Shadow call stack
* Work around some issues with Clang's integrated assembler not liking
our perfectly reasonable assembly code
* Avoid allocating the X18 register, so that it can be used to hold the
shadow call stack pointer in future
- ACPI
* Fix ID count checking in IORT code. This may regress broken firmware
that happened to work with the old implementation, in which case we'll
have to revert it and try something else
* Fix DAIF corruption on return from GHES handler with pseudo-NMIs
- Miscellaneous
* Whitelist some CPUs that are unaffected by Spectre-v2
* Reduce frequency of ASID rollover when KPTI is compiled in but
inactive
* Reserve a couple of arch-specific PROT flags that are already used by
Sparc and PowerPC and are planned for later use with BTI on arm64
* Preparatory cleanup of our entry assembly code in preparation for
moving more of it into C later on
* Refactoring and cleanup
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"The changes are a real mixed bag this time around.
The only scary looking one from the diffstat is the uapi change to
asm-generic/mman-common.h, but this has been acked by Arnd and is
actually just adding a pair of comments in an attempt to prevent
allocation of some PROT values which tend to get used for
arch-specific purposes. We'll be using them for Branch Target
Identification (a CFI-like hardening feature), which is currently
under review on the mailing list.
New architecture features:
- Support for Armv8.5 E0PD, which benefits KASLR in the same way as
KPTI but without the overhead. This allows KPTI to be disabled on
CPUs that are not affected by Meltdown, even is KASLR is enabled.
- Initial support for the Armv8.5 RNG instructions, which claim to
provide access to a high bandwidth, cryptographically secure
hardware random number generator. As well as exposing these to
userspace, we also use them as part of the KASLR seed and to seed
the crng once all CPUs have come online.
- Advertise a bunch of new instructions to userspace, including
support for Data Gathering Hint, Matrix Multiply and 16-bit
floating point.
Kexec:
- Cleanups in preparation for relocating with the MMU enabled
- Support for loading crash dump kernels with kexec_file_load()
Perf and PMU drivers:
- Cleanups and non-critical fixes for a couple of system PMU drivers
FPU-less (aka broken) CPU support:
- Considerable fixes to support CPUs without the FP/SIMD extensions,
including their presence in heterogeneous systems. Good luck
finding a 64-bit userspace that handles this.
Modern assembly function annotations:
- Start migrating our use of ENTRY() and ENDPROC() over to the
new-fangled SYM_{CODE,FUNC}_{START,END} macros, which are intended
to aid debuggers
Kbuild:
- Cleanup detection of LSE support in the assembler by introducing
'as-instr'
- Remove compressed Image files when building clean targets
IP checksumming:
- Implement optimised IPv4 checksumming routine when hardware offload
is not in use. An IPv6 version is in the works, pending testing.
Hardware errata:
- Work around Cortex-A55 erratum #1530923
Shadow call stack:
- Work around some issues with Clang's integrated assembler not
liking our perfectly reasonable assembly code
- Avoid allocating the X18 register, so that it can be used to hold
the shadow call stack pointer in future
ACPI:
- Fix ID count checking in IORT code. This may regress broken
firmware that happened to work with the old implementation, in
which case we'll have to revert it and try something else
- Fix DAIF corruption on return from GHES handler with pseudo-NMIs
Miscellaneous:
- Whitelist some CPUs that are unaffected by Spectre-v2
- Reduce frequency of ASID rollover when KPTI is compiled in but
inactive
- Reserve a couple of arch-specific PROT flags that are already used
by Sparc and PowerPC and are planned for later use with BTI on
arm64
- Preparatory cleanup of our entry assembly code in preparation for
moving more of it into C later on
- Refactoring and cleanup"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (73 commits)
arm64: acpi: fix DAIF manipulation with pNMI
arm64: kconfig: Fix alignment of E0PD help text
arm64: Use v8.5-RNG entropy for KASLR seed
arm64: Implement archrandom.h for ARMv8.5-RNG
arm64: kbuild: remove compressed images on 'make ARCH=arm64 (dist)clean'
arm64: entry: Avoid empty alternatives entries
arm64: Kconfig: select HAVE_FUTEX_CMPXCHG
arm64: csum: Fix pathological zero-length calls
arm64: entry: cleanup sp_el0 manipulation
arm64: entry: cleanup el0 svc handler naming
arm64: entry: mark all entry code as notrace
arm64: assembler: remove smp_dmb macro
arm64: assembler: remove inherit_daif macro
ACPI/IORT: Fix 'Number of IDs' handling in iort_id_map()
mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use
arm64: Use macros instead of hard-coded constants for MAIR_EL1
arm64: Add KRYO{3,4}XX CPU cores to spectre-v2 safe list
arm64: kernel: avoid x18 in __cpu_soft_restart
arm64: kvm: stop treating register x18 as caller save
arm64/lib: copy_page: avoid x18 register in assembler code
...
Alexei Starovoitov says:
====================
pull-request: bpf-next 2020-01-22
The following pull-request contains BPF updates for your *net-next* tree.
We've added 92 non-merge commits during the last 16 day(s) which contain
a total of 320 files changed, 7532 insertions(+), 1448 deletions(-).
The main changes are:
1) function by function verification and program extensions from Alexei.
2) massive cleanup of selftests/bpf from Toke and Andrii.
3) batched bpf map operations from Brian and Yonghong.
4) tcp congestion control in bpf from Martin.
5) bulking for non-map xdp_redirect form Toke.
6) bpf_send_signal_thread helper from Yonghong.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When trying to compile with CONFIG_DEBUG_INFO_BTF enabled, I got this
error:
% make -s
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[3]: *** [vmlinux] Error 1
Compiling again without -s shows the true error (that pahole is
missing), but since this is fatal, we should show the error
unconditionally on stderr as well, not silence it using the `info`
function. With this patch:
% make -s
BTF: .tmp_vmlinux.btf: pahole (pahole) is not available
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[3]: *** [vmlinux] Error 1
Signed-off-by: Chris Down <chris@chrisdown.name>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200122000110.GA310073@chrisdown.name
Currently, -E (stop after the preprocessing stage) is used to check
whether the given compiler flag is supported.
While it is faster than -S (or -c), it can be false-positive. You need
to run the compilation proper to check the flag more precisely.
For example, -E and -S disagree about the support of
"--param asan-instrument-allocas=1".
$ gcc -Werror --param asan-instrument-allocas=1 -E -x c /dev/null -o /dev/null
$ echo $?
0
$ gcc -Werror --param asan-instrument-allocas=1 -S -x c /dev/null -o /dev/null
cc1: error: invalid --param name ‘asan-instrument-allocas’; did you mean ‘asan-instrument-writes’?
$ echo $?
1
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Select deb compression using KDEB_COMPRESS make variable. This allows to
use gzip compression for local or test builds, and that's way faster
than now-default xz compression.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Scenario 1, ARMv7
=================
If code in arch/arm/kernel/ftrace.c would operate on mcount() pointer
the following may be generated:
00000230 <prealloc_fixed_plts>:
230: b5f8 push {r3, r4, r5, r6, r7, lr}
232: b500 push {lr}
234: f7ff fffe bl 0 <__gnu_mcount_nc>
234: R_ARM_THM_CALL __gnu_mcount_nc
238: f240 0600 movw r6, #0
238: R_ARM_THM_MOVW_ABS_NC __gnu_mcount_nc
23c: f8d0 1180 ldr.w r1, [r0, #384] ; 0x180
FTRACE currently is not able to deal with it:
WARNING: CPU: 0 PID: 0 at .../kernel/trace/ftrace.c:1979 ftrace_bug+0x1ad/0x230()
...
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.116-... #1
...
[<c0314e3d>] (unwind_backtrace) from [<c03115e9>] (show_stack+0x11/0x14)
[<c03115e9>] (show_stack) from [<c051a7f1>] (dump_stack+0x81/0xa8)
[<c051a7f1>] (dump_stack) from [<c0321c5d>] (warn_slowpath_common+0x69/0x90)
[<c0321c5d>] (warn_slowpath_common) from [<c0321cf3>] (warn_slowpath_null+0x17/0x1c)
[<c0321cf3>] (warn_slowpath_null) from [<c038ee9d>] (ftrace_bug+0x1ad/0x230)
[<c038ee9d>] (ftrace_bug) from [<c038f1f9>] (ftrace_process_locs+0x27d/0x444)
[<c038f1f9>] (ftrace_process_locs) from [<c08915bd>] (ftrace_init+0x91/0xe8)
[<c08915bd>] (ftrace_init) from [<c0885a67>] (start_kernel+0x34b/0x358)
[<c0885a67>] (start_kernel) from [<00308095>] (0x308095)
---[ end trace cb88537fdc8fa200 ]---
ftrace failed to modify [<c031266c>] prealloc_fixed_plts+0x8/0x60
actual: 44:f2:e1:36
ftrace record flags: 0
(0) expected tramp: c03143e9
Scenario 2, ARMv4T
==================
ftrace: allocating 14435 entries in 43 pages
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at kernel/trace/ftrace.c:2029 ftrace_bug+0x204/0x310
CPU: 0 PID: 0 Comm: swapper Not tainted 4.19.5 #1
Hardware name: Cirrus Logic EDB9302 Evaluation Board
[<c0010a24>] (unwind_backtrace) from [<c000ecb0>] (show_stack+0x20/0x2c)
[<c000ecb0>] (show_stack) from [<c03c72e8>] (dump_stack+0x20/0x30)
[<c03c72e8>] (dump_stack) from [<c0021c18>] (__warn+0xdc/0x104)
[<c0021c18>] (__warn) from [<c0021d7c>] (warn_slowpath_null+0x4c/0x5c)
[<c0021d7c>] (warn_slowpath_null) from [<c0095360>] (ftrace_bug+0x204/0x310)
[<c0095360>] (ftrace_bug) from [<c04dabac>] (ftrace_init+0x3b4/0x4d4)
[<c04dabac>] (ftrace_init) from [<c04cef4c>] (start_kernel+0x20c/0x410)
[<c04cef4c>] (start_kernel) from [<00000000>] ( (null))
---[ end trace 0506a2f5dae6b341 ]---
ftrace failed to modify
[<c000c350>] perf_trace_sys_exit+0x5c/0xe8
actual: 1e:ff:2f:e1
Initializing ftrace call sites
ftrace record flags: 0
(0)
expected tramp: c000fb24
The analysis for this problem has been already performed previously,
refer to the link below.
Fix the above problems by allowing only selected reloc types in
__mcount_loc. The list itself comes from the legacy recordmcount.pl
script.
Link: https://lore.kernel.org/lkml/56961010.6000806@pengutronix.de/
Cc: stable@vger.kernel.org
Fixes: ed60453fa8 ("ARM: 6511/1: ftrace: add ARM support for C version of recordmcount")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
In order to do kernel builds with the bounds checker individually
available, introduce CONFIG_UBSAN_BOUNDS, with the remaining options
under CONFIG_UBSAN_MISC.
For example, using this, we can start to expand the coverage syzkaller is
providing. Right now, all of UBSan is disabled for syzbot builds because
taken as a whole, it is too noisy. This will let us focus on one feature
at a time.
For the bounds checker specifically, this provides a mechanism to
eliminate an entire class of array overflows with close to zero
performance overhead (I cannot measure a difference). In my (mostly)
defconfig, enabling bounds checking adds ~4200 checks to the kernel.
Performance changes are in the noise, likely due to the branch predictors
optimizing for the non-fail path.
Some notes on the bounds checker:
- it does not instrument {mem,str}*()-family functions, it only
instruments direct indexed accesses (e.g. "foo[i]"). Dealing with
the {mem,str}*()-family functions is a work-in-progress around
CONFIG_FORTIFY_SOURCE[1].
- it ignores flexible array members, including the very old single
byte (e.g. "int foo[1];") declarations. (Note that GCC's
implementation appears to ignore _all_ trailing arrays, but Clang only
ignores empty, 0, and 1 byte arrays[2].)
[1] https://github.com/KSPP/linux/issues/6
[2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92589
Bug: 136249967
Link: https://lore.kernel.org/kernel-hardening/20191121181519.28637-3-keescook@chromium.org/
Suggested-by: Elena Petrova <lenaptr@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Elena Petrova <lenaptr@google.com>
Change-Id: I1f79faea7386af1bc50faaf8b399ea6448611d5a
The Undefined Behavior Sanitizer can operate in two modes: warning
reporting mode via lib/ubsan.c handler calls, or trap mode, which uses
__builtin_trap() as the handler. Using lib/ubsan.c means the kernel
image is about 5% larger (due to all the debugging text and reporting
structures to capture details about the warning conditions). Using the
trap mode, the image size changes are much smaller, though at the loss
of the "warning only" mode.
In order to give greater flexibility to system builders that want
minimal changes to image size and are prepared to deal with kernel
threads being killed, this introduces CONFIG_UBSAN_TRAP. The resulting
image sizes comparison:
text data bss dec hex filename
19533663 6183037 18554956 44271656 2a38828 vmlinux.stock
19991849 7618513 18874448 46484810 2c54d4a vmlinux.ubsan
19712181 6284181 18366540 44362902 2a4ec96 vmlinux.ubsan-trap
CONFIG_UBSAN=y: image +4.8% (text +2.3%, data +18.9%)
CONFIG_UBSAN_TRAP=y: image +0.2% (text +0.9%, data +1.6%)
Bug: 136249967
Link: https://lore.kernel.org/kernel-hardening/20191121181519.28637-2-keescook@chromium.org/
Suggested-by: Elena Petrova <lenaptr@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Elena Petrova <lenaptr@google.com>
Change-Id: Ifa36d25f9649958cfc7b78e21777390f128db165
Bartosz Golaszewski reports that when "make {menu,n,g,x}config" fails
due to missing packages, a temporary file is left over, which is not
ignored by git.
For example, if GTK+ is not installed:
$ make gconfig
*
* Unable to find the GTK+ installation. Please make sure that
* the GTK+ 2.0 development package is correctly installed.
* You need gtk+-2.0 gmodule-2.0 libglade-2.0
*
scripts/kconfig/Makefile:208: recipe for target 'scripts/kconfig/gconf-cfg' failed
make[1]: *** [scripts/kconfig/gconf-cfg] Error 1
Makefile:567: recipe for target 'gconfig' failed
make: *** [gconfig] Error 2
$ git status
HEAD detached at v5.4
Untracked files:
(use "git add <file>..." to include in what will be committed)
scripts/kconfig/gconf-cfg.tmp
nothing added to commit but untracked files present (use "git add" to track)
This is because the check scripts are run with filechk, which misses
to clean up the temporary file on failure.
When the line
{ $(filechk_$(1)); } > $@.tmp;
... fails, it exits immediately due to the 'set -e'. Use trap to make
sure to delete the temporary file on exit.
For extra safety, I replaced $@.tmp with $(dot-target).tmp to make it
a hidden file.
Reported-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Commit 8d5290149e ("[SPARC]: Deal with glibc changing macro names in
modpost.c") was more than 14 years ago. STT_SPARC_REGISTER is hopefully
defined in elf.h of recent C libraries.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
Similar to 'cc-option' or 'ld-option', it is occasionally necessary to
check whether the assembler supports certain ISA extensions. In the
arm64 code we currently do this in Makefile with an additional define:
lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1)
Add the 'as-instr' option so that it can be used in Kconfig directly:
def_bool $(as-instr,.arch_extension lse)
Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
bpf_helpers_doc.py script, used to generate bpf_helper_defs.h, unconditionally
emits one informational message to stderr. Remove it and preserve stderr to
contain only relevant errors. Also make sure script invocations command is
muted by default in libbpf's Makefile.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200113073143.1779940-3-andriin@fb.com
Remove a bunch of files not used during external module builds:
- foreign architecture headers
- subtree Makefiles
- Kconfig files
- perl scripts
On amd64 system this looses a third of the resulting .deb size.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Merge 4.19.95 into android-4.19
Changes in 4.19.95
USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
USB: dummy-hcd: increase max number of devices to 32
bpf: Fix passing modified ctx to ld/abs/ind instruction
regulator: fix use after free issue
ASoC: max98090: fix possible race conditions
locking/spinlock/debug: Fix various data races
netfilter: ctnetlink: netns exit must wait for callbacks
mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()
libtraceevent: Fix lib installation with O=
x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage
ASoC: Intel: bytcr_rt5640: Update quirk for Teclast X89
efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs
efi/gop: Return EFI_SUCCESS if a usable GOP was found
efi/gop: Fix memory leak in __gop_query32/64()
ARM: dts: imx6ul: imx6ul-14x14-evk.dtsi: Fix SPI NOR probing
ARM: vexpress: Set-up shared OPP table instead of individual for each CPU
netfilter: uapi: Avoid undefined left-shift in xt_sctp.h
netfilter: nft_set_rbtree: bogus lookup/get on consecutive elements in named sets
netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END
netfilter: nf_tables: validate NFT_DATA_VALUE after nft_data_init()
ARM: dts: BCM5301X: Fix MDIO node address/size cells
selftests/ftrace: Fix multiple kprobe testcase
ARM: dts: Cygnus: Fix MDIO node address/size cells
spi: spi-cavium-thunderx: Add missing pci_release_regions()
ASoC: topology: Check return value for soc_tplg_pcm_create()
ARM: dts: bcm283x: Fix critical trip point
bnxt_en: Return error if FW returns more data than dump length
bpf, mips: Limit to 33 tail calls
spi: spi-ti-qspi: Fix a bug when accessing non default CS
ARM: dts: am437x-gp/epos-evm: fix panel compatible
samples: bpf: Replace symbol compare of trace_event
samples: bpf: fix syscall_tp due to unused syscall
powerpc: Ensure that swiotlb buffer is allocated from low memory
btrfs: Fix error messages in qgroup_rescan_init
bpf: Clear skb->tstamp in bpf_redirect when necessary
bnx2x: Do not handle requests from VFs after parity
bnx2x: Fix logic to get total no. of PFs per engine
cxgb4: Fix kernel panic while accessing sge_info
net: usb: lan78xx: Fix error message format specifier
parisc: add missing __init annotation
rfkill: Fix incorrect check to avoid NULL pointer dereference
ASoC: wm8962: fix lambda value
regulator: rn5t618: fix module aliases
iommu/iova: Init the struct iova to fix the possible memleak
kconfig: don't crash on NULL expressions in expr_eq()
perf/x86/intel: Fix PT PMI handling
fs: avoid softlockups in s_inodes iterators
net: stmmac: Do not accept invalid MTU values
net: stmmac: xgmac: Clear previous RX buffer size
net: stmmac: RX buffer size must be 16 byte aligned
net: stmmac: Always arm TX Timer at end of transmission start
s390/purgatory: do not build purgatory with kcov, kasan and friends
drm/exynos: gsc: add missed component_del
s390/dasd/cio: Interpret ccw_device_get_mdc return value correctly
s390/dasd: fix memleak in path handling error case
block: fix memleak when __blk_rq_map_user_iov() is failed
parisc: Fix compiler warnings in debug_core.c
llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c)
hv_netvsc: Fix unwanted rx_table reset
powerpc/vcpu: Assume dedicated processors as non-preempt
powerpc/spinlocks: Include correct header for static key
cpufreq: imx6q: read OCOTP through nvmem for imx6ul/imx6ull
ARM: dts: imx6ul: use nvmem-cells for cpu speed grading
PCI/switchtec: Read all 64 bits of part_event_bitmap
gtp: fix bad unlock balance in gtp_encap_enable_socket
macvlan: do not assume mac_header is set in macvlan_broadcast()
net: dsa: mv88e6xxx: Preserve priority when setting CPU port.
net: stmmac: dwmac-sun8i: Allow all RGMII modes
net: stmmac: dwmac-sunxi: Allow all RGMII modes
net: usb: lan78xx: fix possible skb leak
pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM
sch_cake: avoid possible divide by zero in cake_enqueue()
sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY
tcp: fix "old stuff" D-SACK causing SACK to be treated as D-SACK
vxlan: fix tos value before xmit
vlan: fix memory leak in vlan_dev_set_egress_priority
vlan: vlan_changelink() should propagate errors
mlxsw: spectrum_qdisc: Ignore grafting of invisible FIFO
net: sch_prio: When ungrafting, replace with FIFO
usb: dwc3: gadget: Fix request complete check
USB: core: fix check for duplicate endpoints
USB: serial: option: add Telit ME910G1 0x110a composition
usb: missing parentheses in USE_NEW_SCHEME
Linux 4.19.95
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I611f034c58f975a5d2b70eed0a0884f1ff5b09cc
[ Upstream commit 272a721030 ]
NULL expressions are taken to always be true, as implemented by the
expr_is_yes() macro and by several other functions in expr.c. As such,
they ought to be valid inputs to expr_eq(), which compares two
expressions.
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
strncasecmp() & strcasecmp() functions are declared in strings.h, not
string.h. On most environments the former is implicitly included by
the latter but on some setups, building menuconfig results in the
following warning:
HOSTCC scripts/kconfig/mconf.o
scripts/kconfig/mconf.c: In function ‘search_conf’:
scripts/kconfig/mconf.c:423:6: warning: implicit declaration of function ‘strncasecmp’ [-Wimplicit-function-declaration]
if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
^~~~~~~~~~~
scripts/kconfig/mconf.c: In function ‘main’:
scripts/kconfig/mconf.c:1021:8: warning: implicit declaration of function ‘strcasecmp’ [-Wimplicit-function-declaration]
if (!strcasecmp(mode, "single_menu"))
^~~~~~~~~~
Fix it by explicitly including strings.h.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Use __always_inline for atomic fallback wrappers. When building for size
(CC_OPTIMIZE_FOR_SIZE), some compilers appear to be less inclined to
inline even relatively small static inline functions that are assumed to
be inlinable such as atomic ops. This can cause problems, for example in
UACCESS regions.
While the fallback wrappers aren't pure wrappers, they are trivial
nonetheless, and the function they wrap should determine the final
inlining policy.
For x86 tinyconfig we observe:
- vmlinux baseline: 1315988
- vmlinux with patch: 1315928 (-60 bytes)
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Prefer __always_inline for atomic wrappers. When building for size
(CC_OPTIMIZE_FOR_SIZE), some compilers appear to be less inclined to
inline even relatively small static inline functions that are assumed to
be inlinable such as atomic ops. This can cause problems, for example in
UACCESS regions.
By using __always_inline, we let the real implementation and not the
wrapper determine the final inlining preference.
For x86 tinyconfig we observe:
- vmlinux baseline: 1316204
- vmlinux with patch: 1315988 (-216 bytes)
This came up when addressing UACCESS warnings with CC_OPTIMIZE_FOR_SIZE
in the KCSAN runtime:
http://lkml.kernel.org/r/58708908-84a0-0a81-a836-ad97e33dbb62@infradead.org
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
When we generate the help text of a symbol (e.g. when a user presses '?'
in menuconfig), we do two things:
1. We iterate through every prompt that belongs to that symbol,
printing its text and its location in the menu tree.
2. We print symbol-wide information that's not linked to a particular
prompt, such as what it selects/is selected by and what it
implies/is implied by.
Each prompt we print for 1 starts with a line that's not indented
indicating where the prompt is defined, then continues with indented
lines that describe properties of that particular definition.
Once we get to 2, however, we print all the global data indented as
well! Visually, this makes it look like the symbol-wide data is
associated with the last prompt we happened to print rather than
the symbol as a whole.
Fix this by removing the indentation for symbol-wide information.
Before:
Symbol: CPU_FREQ [=n]
Type : bool
Defined at drivers/cpufreq/Kconfig:4
Prompt: CPU Frequency scaling
Location:
-> CPU Power Management
-> CPU Frequency scaling
Selects: SRCU [=n]
Selected by [n]:
- ARCH_SA1100 [=n] && <choice>
After:
Symbol: CPU_FREQ [=n]
Type : bool
Defined at drivers/cpufreq/Kconfig:4
Prompt: CPU Frequency scaling
Location:
-> CPU Power Management
-> CPU Frequency scaling
Selects: SRCU [=n]
Selected by [n]:
- ARCH_SA1100 [=n] && <choice>
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Kconfig makes a distinction between dependencies (defined by "depends
on" expressions and enclosing "if" blocks) and visibility (which
includes all dependencies, but also includes inline "if" expressions of
individual properties as well as, for prompts, "visible if" expressions
of enclosing menus).
Before commit bcdedcc1af ("menuconfig: print more info for symbol
without prompts"), the "Depends on" lines of a symbol's help text
indicated the visibility of the prompt property they appeared under.
After bcdedcc1af, there was always only a single "Depends on" line,
which indicated the visibility of the first P_SYMBOL property of the
symbol. Since P_SYMBOLs never have inline if expressions, this was in
effect the same as the dependencies of the menu item that the P_SYMBOL
was attached to.
Neither of these situations accurately conveyed the dependencies of a
symbol--the first because it was actually the visibility, and the second
because it only showed the dependencies from a single definition.
With this series, we are back to printing separate dependencies for each
definition, but we print the actual dependencies (rather than the
visibility) in the "Depends on" line. However, it can still be useful to
know the visibility of a prompt, so this patch adds a "Visible if" line
that shows the visibility only if the visibility is different from the
dependencies (which it isn't for most prompts in Linux).
Before:
Symbol: THUMB2_KERNEL [=n]
Type : bool
Defined at arch/arm/Kconfig:1417
Prompt: Compile the kernel in Thumb-2 mode
Depends on: (CPU_V7 [=y] || CPU_V7M [=n]) && !CPU_V6 [=n] && !CPU_V6K [=n]
Location:
-> Kernel Features
Selects: ARM_UNWIND [=n]
After:
Symbol: THUMB2_KERNEL [=n]
Type : bool
Defined at arch/arm/Kconfig:1417
Prompt: Compile the kernel in Thumb-2 mode
Depends on: (CPU_V7 [=y] || CPU_V7M [=n]) && !CPU_V6 [=n] && !CPU_V6K [=n]
Visible if: (CPU_V7 [=y] || CPU_V7M [=n]) && !CPU_V6 [=n] && !CPU_V6K [=n] && !CPU_THUMBONLY [=n]
Location:
-> Kernel Features
Selects: ARM_UNWIND [=n]
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In Kconfig, each symbol (representing a config option) can be defined in
multiple places. Each definition may or may not have a prompt, which
allows the option to be set via an interface like menuconfig. Each
definition has a set of dependencies, which determine whether its prompt
is visible and whether other pieces of the definition, like a default
value, take effect.
Historically, a symbol's help text (i.e. what's shown when a user
presses '?' in menuconfig) contained some symbol-wide information not
tied to any particular definition (e.g. what other symbols it selects)
as well as the location (file name and line number) and dependencies of
each prompt. Notably, the help text did not show the location or
dependencies of definitions without prompts.
Because this made it hard to reason about symbols that had no prompts,
commit bcdedcc1af ("menuconfig: print more info for symbol without
prompts") changed the help text so that, instead of containing the
location and dependencies of each prompt, it contained the location and
dependencies of the symbol's first definition, regardless of whether or
not that definition had a prompt.
For symbols with only one definition, that change makes sense. However,
it breaks down for symbols with multiple definitions: each definition
has its own set of dependencies (the `dep` field of `struct menu`), and
those dependencies are ORed together to get the symbol's dependency list
(the `dir_dep` field of `struct symbol`). By printing only the
dependencies of the first definition, the help text misleads users into
believing that an option is more narrowly-applicable than it actually
is.
For an extreme example of this, we can look at the SYS_TEXT_BASE symbol
in the Das U-Boot project (version 2019.10), which also uses Kconfig. (I
unfortunately could not find an illustrative example in Linux.) This
config option specifies the load address of the built binary and, as
such, is applicable to basically every configuration possible. And yet,
without this patch, its help text is as follows:
Symbol: SYS_TEXT_BASE [=]
Type : hex
Prompt: U-Boot base address
Location:
-> ARM architecture
Prompt: Text Base
Location:
-> Boot images
Defined at arch/arm/mach-aspeed/Kconfig:9
Depends on: ARM [=n] && ARCH_ASPEED [=n]
The help text indicates that the option is applicable only for a
specific unselected architecture (aspeed), because that architecture's
promptless definition (which just sets a default value), happens to be
the first one seen. No definition or dependency information is printed
for either of the two prompts listed.
Because source locations and dependencies are fundamentally properties
of definitions and not of symbols, we should treat them as such. This
patch brings back the pre-bcdedcc1afd6 behavior for definitions with
prompts but also separately prints the location and dependencies of
those without prompts, solving the original problem in a different way.
With this change, our SYS_TEXT_BASE example becomes
Symbol: SYS_TEXT_BASE [=]
Type : hex
Defined at arch/arm/mach-stm32mp/Kconfig:83
Prompt: U-Boot base address
Depends on: ARM [=n] && ARCH_STM32MP [=n]
Location:
-> ARM architecture
Defined at Kconfig:532
Prompt: Text Base
Depends on: !NIOS2 [=n] && !XTENSA [=n] && !EFI_APP [=n]
Location:
-> Boot images
Defined at arch/arm/mach-aspeed/Kconfig:9
Depends on: ARM [=n] && ARCH_ASPEED [=n]
Defined at arch/arm/mach-socfpga/Kconfig:25
Depends on: ARM [=n] && ARCH_SOCFPGA [=n]
<snip>
Defined at board/sifive/fu540/Kconfig:15
Depends on: RISCV [=n] && TARGET_SIFIVE_FU540 [=n]
which is a much more accurate representation.
Note that there is one notable difference between what gets printed for
prompts after this change and what got printed before bcdedcc1afd6: the
"Depends on" line now accurately represents the prompt's dependencies
instead of conflating those with the prompt's visibility (which can
include extra conditions). See the patch later in this series titled
"kconfig: distinguish between dependencies and visibility in help text"
for more details and better handling of that nuance.
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Since kernel configs provided by syzbot are close to "make allyesconfig",
it takes long time to rebuild. This is especially waste of time when we
need to rebuild for many times (e.g. doing manual printk() inspection,
bisect operations).
We can save time if we can exclude modules which are irrelevant to each
problem. But "make localmodconfig" cannot exclude modules which are built
into vmlinux because /sbin/lsmod output is used as the source of modules.
Therefore, this patch adds "make yes2modconfig" which converts from =y
to =m if possible. After confirming that the interested problem is still
reproducible, we can try "make localmodconfig" (and/or manually tune
based on "Modules linked in:" line) in order to exclude modules which are
irrelevant to the interested problem. While we are at it, this patch also
adds "make mod2yesconfig" which converts from =m to =y in case someone
wants to convert from =m to =y after "make localmodconfig".
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The top Makefile defines and exports the variable 'PERL'. Use it in
case somebody wants to specify a particular version of perl from the
command line.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This is unused since commit cdfc47950a ("kconfig: search for a config
to base the local(mod|yes)config on").
Having unused $config is confusing because $config is used as a local
variable in various sub-routines.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
struct property can reference to the symbol that it is associated with
by prop->menu->sym.
Fix up the one usage of prop->sym, and remove sym from struct property.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
menu_add_prompt() is the only function that calls menu_add_prop() with
non-NULL prompt.
So, the code inside the if-conditional block of menu_add_prop() can be
moved to menu_add_prompt().
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Now that 'prompt' is only reduced from T_WORD_QUOTE without any action,
use T_WORD_QUOTE directly.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Commit 8636a1f967 ("treewide: surround Kconfig file paths with double
quotes") killed use-cases to reduce an unquoted string into the 'prompt'
symbol.
Kconfig still allows to use an unquoted string in the context of menu,
source, or prompt.
So, you can omit quoting if the prompt is a single word:
bool foo
..., but I do not think this is so useful.
Let's require quoting:
bool "foo"
All the Kconfig files in the kernel are written in this way.
Remove the T_WORD from the right-hand side of the symbol 'prompt'.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In menu_finalize(), the dependency of a menu entry is propagated
downwards.
For the 'menu', parent->dep and parent->prompt->visible.expr have
the same expression. Both accumulate the 'depends on' of itself and
upper menu entries.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This reverts commit ba6ff60d5e ("kconfig: don't emit warning upon
rootmenu's prompt redefinition").
At that time, rootmenu.prompt was always set first, then it was set
again if a "mainmenu" statement was specified in the Kconfig file.
This is no longer the case since commit 0724a7c32a ("kconfig: Don't
leak main menus during parsing"). Remove the unneeded check.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Commit bc081dd6e9 ("kbuild: generate modules.builtin") added
infrastructure to generate modules.builtin, the list of all
builtin modules.
Basically, it works like this:
- Kconfig generates include/config/tristate.conf, the list of
tristate CONFIG options with a value in a capital letter.
- scripts/Makefile.modbuiltin makes Kbuild descend into
directories to collect the information of builtin modules.
I am not a big fan of it because Kbuild ends up with traversing
the source tree twice.
I am not sure how perfectly it should work, but this approach cannot
avoid false positives; even if the relevant CONFIG option is tristate,
some Makefiles forces obj-m to obj-y.
Some examples are:
arch/powerpc/platforms/powermac/Makefile:
obj-$(CONFIG_NVRAM:m=y) += nvram.o
net/ipv6/Makefile:
obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
net/netlabel/Makefile:
obj-$(subst m,y,$(CONFIG_IPV6)) += netlabel_calipso.o
Nobody has complained about (or noticed) it, so it is probably fine to
have false positives in modules.builtin.
This commit simplifies the implementation. Let's exploit the fact
that every module has MODULE_LICENSE(). (modpost shows a warning if
MODULE_LICENSE is missing. If so, 0-day bot would already have blocked
such a module.)
I added MODULE_FILE to <linux/module.h>. When the code is being compiled
as builtin, it will be filled with the file path of the module, and
collected into modules.builtin.info. Then, scripts/link-vmlinux.sh
extracts the list of builtin modules out of it.
This new approach fixes the false-positives above, but adds another
type of false-positives; non-modular code may have MODULE_LICENSE()
by mistake. This is not a big deal, it is just the code is always
orphan. We can clean it up if we like. You can see cleanup examples by:
$ git log --grep='make.* explicitly non-modular'
To sum up, this commits deletes lots of code, but still produces almost
equivalent results. Please note it does not increase the vmlinux size at
all. As you can see in include/asm-generic/vmlinux.lds.h, the .modinfo
section is discarded in the link stage.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
When compiling, Kbuild passes KBUILD_BASENAME (basename of the object)
and KBUILD_MODNAME (basename of the module).
This commit adds another one, KBUILD_MODFILE, which is the path of
the module. (or, the path of the module it would end up in if it were
compiled as a module.)
The next commit will use this to generate modules.builtin without
tristate.conf.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The built-in.a in a sub-directory is created by descending into that
directory. It does not depend on the other sub-directories. Loosen
the dependency.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Both 'obj-y += foo/' and 'obj-m += foo/' request Kbuild to visit the
sub-directory foo/, but the difference is that only the former combines
foo/built-in.a into the built-in.a of the current directory because
everything in sub-directories visited by obj-m is supposed to be modular.
So, it makes sense to create built-in.a only if that sub-directory is
reachable by the chain of obj-y. Otherwise, built-in.a will not be
linked into vmlinux anyway. For the same reason, it is pointless to
compile obj-y objects in the directory visited by obj-m.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Merge 4.19.93 into android-4.19
Changes in 4.19.93
scsi: lpfc: Fix discovery failures when target device connectivity bounces
scsi: mpt3sas: Fix clear pending bit in ioctl status
scsi: lpfc: Fix locking on mailbox command completion
Input: atmel_mxt_ts - disable IRQ across suspend
f2fs: fix to update time in lazytime mode
iommu: rockchip: Free domain on .domain_free
iommu/tegra-smmu: Fix page tables in > 4 GiB memory
dmaengine: xilinx_dma: Clear desc_pendingcount in xilinx_dma_reset
scsi: target: compare full CHAP_A Algorithm strings
scsi: lpfc: Fix SLI3 hba in loop mode not discovering devices
scsi: csiostor: Don't enable IRQs too early
scsi: hisi_sas: Replace in_softirq() check in hisi_sas_task_exec()
powerpc/pseries: Mark accumulate_stolen_time() as notrace
powerpc/pseries: Don't fail hash page table insert for bolted mapping
powerpc/tools: Don't quote $objdump in scripts
dma-debug: add a schedule point in debug_dma_dump_mappings()
leds: lm3692x: Handle failure to probe the regulator
clocksource/drivers/asm9260: Add a check for of_clk_get
clocksource/drivers/timer-of: Use unique device name instead of timer
powerpc/security/book3s64: Report L1TF status in sysfs
powerpc/book3s64/hash: Add cond_resched to avoid soft lockup warning
ext4: update direct I/O read lock pattern for IOCB_NOWAIT
ext4: iomap that extends beyond EOF should be marked dirty
jbd2: Fix statistics for the number of logged blocks
scsi: tracing: Fix handling of TRANSFER LENGTH == 0 for READ(6) and WRITE(6)
scsi: lpfc: Fix duplicate unreg_rpi error in port offline flow
f2fs: fix to update dir's i_pino during cross_rename
clk: qcom: Allow constant ratio freq tables for rcg
clk: clk-gpio: propagate rate change to parent
irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary
irqchip: ingenic: Error out if IRQ domain creation failed
fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long
scsi: lpfc: fix: Coverity: lpfc_cmpl_els_rsp(): Null pointer dereferences
PCI: rpaphp: Fix up pointer to first drc-info entry
scsi: ufs: fix potential bug which ends in system hang
powerpc/pseries/cmm: Implement release() function for sysfs device
PCI: rpaphp: Don't rely on firmware feature to imply drc-info support
PCI: rpaphp: Annotate and correctly byte swap DRC properties
PCI: rpaphp: Correctly match ibm, my-drc-index to drc-name when using drc-info
powerpc/security: Fix wrong message when RFI Flush is disable
scsi: atari_scsi: sun3_scsi: Set sg_tablesize to 1 instead of SG_NONE
clk: pxa: fix one of the pxa RTC clocks
bcache: at least try to shrink 1 node in bch_mca_scan()
HID: quirks: Add quirk for HP MSU1465 PIXART OEM mouse
HID: logitech-hidpp: Silence intermittent get_battery_capacity errors
ARM: 8937/1: spectre-v2: remove Brahma-B53 from hardening
libnvdimm/btt: fix variable 'rc' set but not used
HID: Improve Windows Precision Touchpad detection.
HID: rmi: Check that the RMI_STARTED bit is set before unregistering the RMI transport device
watchdog: Fix the race between the release of watchdog_core_data and cdev
scsi: pm80xx: Fix for SATA device discovery
scsi: ufs: Fix error handing during hibern8 enter
scsi: scsi_debug: num_tgts must be >= 0
scsi: NCR5380: Add disconnect_mask module parameter
scsi: iscsi: Don't send data to unbound connection
scsi: target: iscsi: Wait for all commands to finish before freeing a session
gpio: mpc8xxx: Don't overwrite default irq_set_type callback
apparmor: fix unsigned len comparison with less than zero
scripts/kallsyms: fix definitely-lost memory leak
powerpc: Don't add -mabi= flags when building with Clang
cdrom: respect device capabilities during opening action
perf script: Fix brstackinsn for AUXTRACE
perf regs: Make perf_reg_name() return "unknown" instead of NULL
s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR
libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h
s390/cpum_sf: Check for SDBT and SDB consistency
ocfs2: fix passing zero to 'PTR_ERR' warning
mailbox: imx: Fix Tx doorbell shutdown path
kernel: sysctl: make drop_caches write-only
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
Revert "powerpc/vcpu: Assume dedicated processors as non-preempt"
x86/mce: Fix possibly incorrect severity calculation on AMD
net, sysctl: Fix compiler warning when only cBPF is present
netfilter: nf_queue: enqueue skbs with NULL dst
ALSA: hda - Downgrade error message for single-cmd fallback
bonding: fix active-backup transition after link failure
perf strbuf: Remove redundant va_end() in strbuf_addv()
Make filldir[64]() verify the directory entry filename is valid
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
netfilter: ebtables: compat: reject all padding in matches/watchers
6pack,mkiss: fix possible deadlock
netfilter: bridge: make sure to pull arp header in br_nf_forward_arp()
inetpeer: fix data-race in inet_putpeer / inet_putpeer
net: add a READ_ONCE() in skb_peek_tail()
net: icmp: fix data-race in cmp_global_allow()
hrtimer: Annotate lockless access to timer->state
net: ena: fix napi handler misbehavior when the napi budget is zero
net/mlxfw: Fix out-of-memory error in mfa2 flash burning
net: stmmac: dwmac-meson8b: Fix the RGMII TX delay on Meson8b/8m2 SoCs
ptp: fix the race between the release of ptp_clock and cdev
tcp: Fix highest_sack and highest_sack_seq
udp: fix integer overflow while computing available space in sk_rcvbuf
vhost/vsock: accept only packets with the right dst_cid
net: add bool confirm_neigh parameter for dst_ops.update_pmtu
ip6_gre: do not confirm neighbor when do pmtu update
gtp: do not confirm neighbor when do pmtu update
net/dst: add new function skb_dst_update_pmtu_no_confirm
tunnel: do not confirm neighbor when do pmtu update
vti: do not confirm neighbor when do pmtu update
sit: do not confirm neighbor when do pmtu update
net/dst: do not confirm neighbor for vxlan and geneve pmtu update
gtp: do not allow adding duplicate tid and ms_addr pdp context
net: marvell: mvpp2: phylink requires the link interrupt
tcp/dccp: fix possible race __inet_lookup_established()
tcp: do not send empty skb from tcp_write_xmit()
gtp: fix wrong condition in gtp_genl_dump_pdp()
gtp: fix an use-after-free in ipv4_pdp_find()
gtp: avoid zero size hashtable
spi: fsl: don't map irq during probe
tty/serial: atmel: fix out of range clock divider handling
pinctrl: baytrail: Really serialize all register accesses
spi: fsl: use platform_get_irq() instead of of_irq_to_resource()
Linux 4.19.93
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie31b3fba19c5a45be0b85f272bc50cb8b67ea3c0
[ Upstream commit 21915eca08 ]
build_initial_tok_table() overwrites unused sym_entry to shrink the
table size. Before the entry is overwritten, table[i].sym must be freed
since it is malloc'ed data.
This fixes the 'definitely lost' report from valgrind. I ran valgrind
against x86_64_defconfig of v5.4-rc8 kernel, and here is the summary:
[Before the fix]
LEAK SUMMARY:
definitely lost: 53,184 bytes in 2,874 blocks
[After the fix]
LEAK SUMMARY:
definitely lost: 0 bytes in 0 blocks
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Cross compiling the x86 kernel on a non-x86 build machine produces
the following error when CONFIG_UNWINDER_ORC is enabled, regardless
of whether libelf-dev is installed or not.
dpkg-checkbuilddeps: error: Unmet build dependencies: libelf-dev
dpkg-buildpackage: warning: build dependencies/conflicts unsatisfied; aborting
dpkg-buildpackage: warning: (Use -d flag to override.)
Since this is a build time dependency for a build tool, we need to
depend on the native version of libelf-dev so add the appropriate
annotation.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
I noticed that randconfig builds with gcc no longer produce a lot of
ccache hits, unlike with clang, and traced this back to plugins
now being enabled unconditionally if they are supported.
I am now working around this by adding
export CCACHE_COMPILERCHECK=/usr/bin/size -A %compiler%
to my top-level Makefile. This changes the heuristic that ccache uses
to determine whether the plugins are the same after a 'make clean'.
However, it also seems that being able to just turn off the plugins is
generally useful, at least for build testing it adds noticeable overhead
but does not find a lot of bugs additional bugs, and may be easier for
ccache users than my workaround.
Fixes: 9f671e5815 ("security: Create "kernel hardening" config area")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20191211133951.401933-1-arnd@arndb.de
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
This adds the following commits from upstream:
c40aeb60b47a travis.yml: Run tests on the non-x86 builders, too
9f86aff444f4 Add .cirrus.yml for FreeBSD build
34c82275bae6 Avoid gnu_printf attribute when using Clang
743000931bc9 tests: default to 'cc' if CC not set
adcd676491cc Add test-case for trailing zero
d9c55f855b65 Remove trailing zero from the overlay path
7a22132c79ec pylibfdt: Adjust for deprecated test methods
dbe80d577ee2 tests: add extension to sed -i for GNU/BSD sed compatibility
af57d440d887 libfdt: Correct prototype for fdt_ro_probe_()
6ce585ac153b Use correct inttypes.h format specifier
715028622547 support byacc in addition to bison
fdf3f6d897ab pylibfdt: Correct the type for fdt_property_stub()
430419c28100 tests: fix some python warnings
588a29ff2e4e util: use gnu_printf format attribute
bc876708ab1d fstree: replace lstat with stat
4c3c4ccb9916 dumptrees: pass outputdir as first argument
aa522da9fff6 tests: allow out-of-tree test run
0d0d0fa51b1f fdtoverlay: Return non-zero exit code if overlays can't be applied
4605eb047b38 Add .editorconfig
18d7b2f4ee45 yamltree: Ensure consistent bracketing of properties with phandles
67f790c1adcc libfdt.h: add explicit cast from void* to uint8_t* in fdt(32|64)_st
b111122ea5eb pylibfdt: use python3 shebang
60e0db3d65a1 Ignore phandle properties in /aliases
95ce19c14064 README: update for Python 3
5345db19f615 livetree: simplify condition in get_node_by_path
b8d6eca78210 libfdt: Allow #size-cells of 0
184f51099471 Makefile: Add EXTRA_CFLAGS variable
812b1956a076 libfdt: Tweak data handling to satisfy Coverity
5c715a44776a fdtoverlay: Ignore symbols in overlays which don't apply to the target tree
b99353474850 fdtoverlay: Allow adding labels to __overlay__ nodes in overlays
d6de81b81b68 pylibfdt: Add support for fdt_get_alias()
1c17714dbb3a pylibfdt: Correct the FdtSw example
ad57e4574a37 tests: Add a failed test case for 'fdtoverlay' with long target path
bbe3b36f542b fdtoverlay: Rework output allocation
6c2e61f08396 fdtoverlay: Improve error messages
297f5abb362e fdtoverlay: Check for truncated overlay blobs
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: clang-built-linux@googlegroups.com
Signed-off-by: Rob Herring <robh@kernel.org>
- fix warning in out-of-tree 'make clean'
- add READELF variable to the top Makefile
- fix broken builds when LINUX_COMPILE_BY contains a backslash
- fix build warning in kallsyms
- fix NULL pointer access in expr_eq() in Kconfig
- fix missing dependency on rsync in deb-pkg build
- remove ---help--- from documentation
- fix misleading documentation about directory descending
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Merge tag 'kbuild-fixes-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- fix warning in out-of-tree 'make clean'
- add READELF variable to the top Makefile
- fix broken builds when LINUX_COMPILE_BY contains a backslash
- fix build warning in kallsyms
- fix NULL pointer access in expr_eq() in Kconfig
- fix missing dependency on rsync in deb-pkg build
- remove ---help--- from documentation
- fix misleading documentation about directory descending
* tag 'kbuild-fixes-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: clarify the difference between obj-y and obj-m w.r.t. descending
kconfig: remove ---help--- from documentation
scripts: package: mkdebian: add missing rsync dependency
kconfig: don't crash on NULL expressions in expr_eq()
scripts/kallsyms: fix offset overflow of kallsyms_relative_base
mkcompile_h: use printf for LINUX_COMPILE_BY
mkcompile_h: git rid of UTS_TRUNCATE from LINUX_COMPILE_{BY,HOST}
x86/boot: kbuild: allow readelf executable to be specified
kbuild: fix 'No such file or directory' warning when cleaning
scripts/conmakehash is only used for generating
drivers/tty/vt/consolemap_deftbl.c
Move it to the related directory.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20191217110633.8796-1-masahiroy@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We've missed the dependency to rsync, so build fails on
minimal containers.
Fixes: 59b2bd05f5 ("kbuild: add 'headers' target to build up uapi headers in usr/include")
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
NULL expressions are taken to always be true, as implemented by the
expr_is_yes() macro and by several other functions in expr.c. As such,
they ought to be valid inputs to expr_eq(), which compares two
expressions.
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Since commit 5e5c4fa787 ("scripts/kallsyms: shrink table before
sorting it"), kallsyms_relative_base can be larger than _text, which
causes overflow when building the 32-bit kernel.
https://lkml.org/lkml/2019/12/7/156
This is because _text is, unless --all-symbols is specified, now
trimmed from the symbol table before record_relative_base() is called.
Handle the offset signedness also for kallsyms_relative_base. Introduce
a new helper, output_address(), to reduce the code duplication.
Fixes: 5e5c4fa787 ("scripts/kallsyms: shrink table before sorting it")
Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Commit 858805b336 ("kbuild: add $(BASH) to run scripts with
bash-extension") shed light on portability issues. Here is another one.
Since commit f07726048d ("Fix handling of backlash character in
LINUX_COMPILE_BY name"), we must escape a backslash contained in
LINUX_COMPILE_BY. This is not working on such distros as Ubuntu.
As the POSIX spec [1] says, if any of the operands contain a backslash
( '\' ) character, the results are implementation-defined.
The actual shell of /bin/sh could be bash, dash, etc. depending on
distros, and the behavior of builtin echo command is different among
them.
The bash builtin echo, unless -e is given, copies the arguments to
stdout without expanding escape sequences (BSD-like behavior).
The dash builtin echo, in contrast, adopts System V behavior, which
does expand escape sequences without any option given.
Even non-builtin /bin/echo behaves differently depending on the system.
Due to these variations, echo is considered as a non-portable command.
Using printf is the common solution to avoid the portability issue.
[1] https://pubs.opengroup.org/onlinepubs/009695399/utilities/echo.html
Fixes: 858805b336 ("kbuild: add $(BASH) to run scripts with bash-extension")
Reported-by: XXing Wei <xxing.wei@unisoc.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
UTS_VERSION is set to struct uts_namespace, hence a too long string
should be truncated so it fits in 64 characters.
On the other hand, LINUX_COMPILE_BY/HOST are not set to uts_namespace.
They are just used in the banners, which do not have specific length
limitation.
I dug into the git history, but I could not find the reason why
these two strings must fit in 64 characters. Remove them.
Now that UTS_VERSION is the only user of UTS_TRUNCATE, I squashed it.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Now that the orc_unwind and orc_unwind_ip tables are sorted at build time,
remove the boot time sorting pass.
No change in functionality.
[ mingo: Rewrote the changelog and code comments. ]
Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-8-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The ORC unwinder has two tables: .orc_unwind_ip and .orc_unwind, which
need to be sorted for binary search. Previously this sorting was done
during bootup.
Sort them at build time to speed up booting.
Add the ORC tables sorting in a parallel build process to speed up the build.
[ mingo: Rewrote the changelog and fixed some comments. ]
Suggested-by: Andy Lutomirski <luto@amacapital.net>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-7-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Use a more generic name for additional table sorting usecases,
such as the upcoming ORC table sorting feature. This tool is
not tied to exception table sorting anymore.
No functional changes intended.
[ mingo: Rewrote the changelog. ]
Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-6-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Refine the loop, naming and code structure, make the code more readable
and extendable. No functional changes intended.
Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-5-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The scripts/sortextable.c code has originally copied some code from
scripts/recordmount.c, which used the same setjmp/longjmp method to
manage control flow.
Meanwhile recordmcount has improved its error handling via:
3f1df12019 ("recordmcount: Rewrite error/success handling").
So rewrite this part of sortextable as well to get rid of the setjmp/longjmp
kludges, with additional refactoring, to make it more readable and
easier to extend.
No functional changes intended.
[ mingo: Rewrote the changelog. ]
Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-2-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge 4.19.89 into android-4.19
Changes in 4.19.89
rsi: release skb if rsi_prepare_beacon fails
arm64: tegra: Fix 'active-low' warning for Jetson TX1 regulator
sparc64: implement ioremap_uc
lp: fix sparc64 LPSETTIMEOUT ioctl
usb: gadget: u_serial: add missing port entry locking
tty: serial: fsl_lpuart: use the sg count from dma_map_sg
tty: serial: msm_serial: Fix flow control
serial: pl011: Fix DMA ->flush_buffer()
serial: serial_core: Perform NULL checks for break_ctl ops
serial: ifx6x60: add missed pm_runtime_disable
autofs: fix a leak in autofs_expire_indirect()
RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN
iwlwifi: pcie: don't consider IV len in A-MSDU
exportfs_decode_fh(): negative pinned may become positive without the parent locked
audit_get_nd(): don't unlock parent too early
NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error
xfrm: release device reference for invalid state
Input: cyttsp4_core - fix use after free bug
sched/core: Avoid spurious lock dependencies
perf/core: Consistently fail fork on allocation failures
ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed()
drm/sun4i: tcon: Set min division of TCON0_DCLK to 1.
selftests: kvm: fix build with glibc >= 2.30
rsxx: add missed destroy_workqueue calls in remove
net: ep93xx_eth: fix mismatch of request_mem_region in remove
i2c: core: fix use after free in of_i2c_notify
serial: core: Allow processing sysrq at port unlock time
cxgb4vf: fix memleak in mac_hlist initialization
iwlwifi: mvm: synchronize TID queue removal
iwlwifi: trans: Clear persistence bit when starting the FW
iwlwifi: mvm: Send non offchannel traffic via AP sta
ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+
audit: Embed key into chunk
netfilter: nf_tables: don't use position attribute on rule replacement
ARC: IOC: panic if kernel was started with previously enabled IOC
net/mlx5: Release resource on error flow
clk: sunxi-ng: a64: Fix gate bit of DSI DPHY
ice: Fix NVM mask defines
dlm: fix possible call to kfree() for non-initialized pointer
ARM: dts: exynos: Fix LDO13 min values on Odroid XU3/XU4/HC1
extcon: max8997: Fix lack of path setting in USB device mode
net: ethernet: ti: cpts: correct debug for expired txq skb
rtc: s3c-rtc: Avoid using broken ALMYEAR register
rtc: max77686: Fix the returned value in case of error in 'max77686_rtc_read_time()'
i40e: don't restart nway if autoneg not supported
virtchnl: Fix off by one error
clk: rockchip: fix rk3188 sclk_smc gate data
clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering
ARM: dts: rockchip: Fix rk3288-rock2 vcc_flash name
dlm: fix missing idr_destroy for recover_idr
MIPS: SiByte: Enable ZONE_DMA32 for LittleSur
net: dsa: mv88e6xxx: Work around mv886e6161 SERDES missing MII_PHYSID2
scsi: zfcp: update kernel message for invalid FCP_CMND length, it's not the CDB
scsi: zfcp: drop default switch case which might paper over missing case
drivers: soc: Allow building the amlogic drivers without ARCH_MESON
bus: ti-sysc: Fix getting optional clocks in clock_roles
ARM: dts: imx6: RDU2: fix eGalax touchscreen node
crypto: ecc - check for invalid values in the key verification test
crypto: bcm - fix normal/non key hash algorithm failure
arm64: dts: zynqmp: Fix node names which contain "_"
pinctrl: qcom: ssbi-gpio: fix gpio-hog related boot issues
Staging: iio: adt7316: Fix i2c data reading, set the data field
firmware: raspberrypi: Fix firmware calls with large buffers
mm/vmstat.c: fix NUMA statistics updates
clk: rockchip: fix I2S1 clock gate register for rk3328
clk: rockchip: fix ID of 8ch clock of I2S1 for rk3328
sctp: count sk_wmem_alloc by skb truesize in sctp_packet_transmit
regulator: Fix return value of _set_load() stub
USB: serial: f81534: fix reading old/new IC config
xfs: extent shifting doesn't fully invalidate page cache
net-next/hinic:fix a bug in set mac address
net-next/hinic: fix a bug in rx data flow
ice: Fix return value from NAPI poll
ice: Fix possible NULL pointer de-reference
iomap: FUA is wrong for DIO O_DSYNC writes into unwritten extents
iomap: sub-block dio needs to zeroout beyond EOF
iomap: dio data corruption and spurious errors when pipes fill
iomap: readpages doesn't zero page tail beyond EOF
iw_cxgb4: only reconnect with MPAv1 if the peer aborts
MIPS: OCTEON: octeon-platform: fix typing
net/smc: use after free fix in smc_wr_tx_put_slot()
math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning
nds32: Fix the items of hwcap_str ordering issue.
rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()'
rtc: dt-binding: abx80x: fix resistance scale
ARM: dts: exynos: Use Samsung SoC specific compatible for DWC2 module
media: coda: fix memory corruption in case more than 32 instances are opened
media: pulse8-cec: return 0 when invalidating the logical address
media: cec: report Vendor ID after initialization
iwlwifi: fix cfg structs for 22000 with different RF modules
ravb: Clean up duplex handling
net/ipv6: re-do dad when interface has IFF_NOARP flag change
dmaengine: coh901318: Fix a double-lock bug
dmaengine: coh901318: Remove unused variable
dmaengine: dw-dmac: implement dma protection control setting
net: qualcomm: rmnet: move null check on dev before dereferecing it
selftests/powerpc: Allocate base registers
selftests/powerpc: Skip test instead of failing
usb: dwc3: debugfs: Properly print/set link state for HS
usb: dwc3: don't log probe deferrals; but do log other error codes
ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion()
f2fs: fix to account preflush command for noflush_merge mode
f2fs: fix count of seg_freed to make sec_freed correct
f2fs: change segment to section in f2fs_ioc_gc_range
ARM: dts: rockchip: Fix the PMU interrupt number for rv1108
ARM: dts: rockchip: Assign the proper GPIO clocks for rv1108
f2fs: fix to allow node segment for GC by ioctl path
sparc: Fix JIT fused branch convergance.
sparc: Correct ctx->saw_frame_pointer logic.
nvme: Free ctrl device name on init failure
dma-mapping: fix return type of dma_set_max_seg_size()
slimbus: ngd: Fix build error on x86
altera-stapl: check for a null key before strcasecmp'ing it
serial: imx: fix error handling in console_setup
i2c: imx: don't print error message on probe defer
clk: meson: Fix GXL HDMI PLL fractional bits width
gpu: host1x: Fix syncpoint ID field size on Tegra186
lockd: fix decoding of TEST results
sctp: increase sk_wmem_alloc when head->truesize is increased
iommu/amd: Fix line-break in error log reporting
ASoC: rsnd: tidyup registering method for rsnd_kctrl_new()
ARM: dts: sun4i: Fix gpio-keys warning
ARM: dts: sun4i: Fix HDMI output DTC warning
ARM: dts: sun5i: a10s: Fix HDMI output DTC warning
ARM: dts: r8a779[01]: Disable unconnected LVDS encoders
ARM: dts: sun7i: Fix HDMI output DTC warning
ARM: dts: sun8i: a23/a33: Fix OPP DTC warnings
ARM: dts: sun8i: v3s: Change pinctrl nodes to avoid warning
dlm: NULL check before kmem_cache_destroy is not needed
ARM: debug: enable UART1 for socfpga Cyclone5
can: xilinx: fix return type of ndo_start_xmit function
nfsd: fix a warning in __cld_pipe_upcall()
bpf: btf: implement btf_name_valid_identifier()
bpf: btf: check name validity for various types
tools: bpftool: fix a bitfield pretty print issue
ASoC: au8540: use 64-bit arithmetic instead of 32-bit
ARM: OMAP1/2: fix SoC name printing
arm64: dts: meson-gxl-libretech-cc: fix GPIO lines names
arm64: dts: meson-gxbb-nanopi-k2: fix GPIO lines names
arm64: dts: meson-gxbb-odroidc2: fix GPIO lines names
arm64: dts: meson-gxl-khadas-vim: fix GPIO lines names
net/x25: fix called/calling length calculation in x25_parse_address_block
net/x25: fix null_x25_address handling
tools/bpf: make libbpf _GNU_SOURCE friendly
clk: mediatek: Drop __init from mtk_clk_register_cpumuxes()
clk: mediatek: Drop more __init markings for driver probe
soc: renesas: r8a77970-sysc: Correct names of A2DP/A2CN power domains
soc: renesas: r8a77980-sysc: Correct names of A2DP[01] power domains
soc: renesas: r8a77980-sysc: Correct A3VIP[012] power domain hierarchy
kbuild: disable dtc simple_bus_reg warnings by default
tcp: make tcp_space() aware of socket backlog
ARM: dts: mmp2: fix the gpio interrupt cell number
ARM: dts: realview-pbx: Fix duplicate regulator nodes
tcp: fix off-by-one bug on aborting window-probing socket
tcp: fix SNMP under-estimation on failed retransmission
tcp: fix SNMP TCP timeout under-estimation
modpost: skip ELF local symbols during section mismatch check
kbuild: fix single target build for external module
mtd: fix mtd_oobavail() incoherent returned value
ARM: dts: pxa: clean up USB controller nodes
clk: meson: meson8b: fix the offset of vid_pll_dco's N value
clk: sunxi-ng: h3/h5: Fix CSI_MCLK parent
clk: qcom: Fix MSM8998 resets
media: cxd2880-spi: fix probe when dvb_attach fails
ARM: dts: realview: Fix some more duplicate regulator nodes
dlm: fix invalid cluster name warning
net/mlx4_core: Fix return codes of unsupported operations
pstore/ram: Avoid NULL deref in ftrace merging failure path
powerpc/math-emu: Update macros from GCC
clk: renesas: r8a77990: Correct parent clock of DU
clk: renesas: r8a77995: Correct parent clock of DU
MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition
nfsd: Return EPERM, not EACCES, in some SETATTR cases
media: uvcvideo: Abstract streaming object lifetime
tty: serial: qcom_geni_serial: Fix softlock
ARM: dts: sun8i: h3: Fix the system-control register range
tty: Don't block on IO when ldisc change is pending
media: stkwebcam: Bugfix for wrong return values
firmware: qcom: scm: fix compilation error when disabled
clk: qcom: gcc-msm8998: Disable halt check of UFS clocks
sctp: frag_point sanity check
soc: renesas: r8a77990-sysc: Fix initialization order of 3DG-{A,B}
mlxsw: spectrum_router: Relax GRE decap matching check
IB/hfi1: Ignore LNI errors before DC8051 transitions to Polling state
IB/hfi1: Close VNIC sdma_progress sleep window
mlx4: Use snprintf instead of complicated strcpy
usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handler
clk: renesas: rcar-gen3: Set state when registering SD clocks
ASoC: max9867: Fix power management
ARM: dts: sunxi: Fix PMU compatible strings
ARM: dts: am335x-pdu001: Fix polarity of card detection input
media: vimc: fix start stream when link is disabled
net: aquantia: fix RSS table and key sizes
sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision
fuse: verify nlink
fuse: verify attributes
ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC
ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
ALSA: hda/realtek - Dell headphone has noise on unmute for ALC236
ALSA: pcm: oss: Avoid potential buffer overflows
ALSA: hda - Add mute led support for HP ProBook 645 G4
Input: synaptics - switch another X1 Carbon 6 to RMI/SMbus
Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash
Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers
Input: goodix - add upside-down quirk for Teclast X89 tablet
coresight: etm4x: Fix input validation for sysfs.
Input: Fix memory leak in psxpad_spi_probe
x86/mm/32: Sync only to VMALLOC_END in vmalloc_sync_all()
x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect
xfrm interface: fix memory leak on creation
xfrm interface: avoid corruption on changelink
xfrm interface: fix list corruption for x-netns
xfrm interface: fix management of phydev
CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks
CIFS: Fix SMB2 oplock break processing
tty: vt: keyboard: reject invalid keycodes
can: slcan: Fix use-after-free Read in slcan_open
kernfs: fix ino wrap-around detection
jbd2: Fix possible overflow in jbd2_log_space_left()
drm/msm: fix memleak on release
drm/i810: Prevent underflow in ioctl
arm64: dts: exynos: Revert "Remove unneeded address space mapping for soc node"
KVM: arm/arm64: vgic: Don't rely on the wrong pending table
KVM: x86: do not modify masked bits of shared MSRs
KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES
KVM: x86: Grab KVM's srcu lock when setting nested state
crypto: crypto4xx - fix double-free in crypto4xx_destroy_sdr
crypto: atmel-aes - Fix IV handling when req->nbytes < ivsize
crypto: af_alg - cast ki_complete ternary op to int
crypto: ccp - fix uninitialized list head
crypto: ecdh - fix big endian bug in ECC library
crypto: user - fix memory leak in crypto_report
spi: atmel: Fix CS high support
mwifiex: update set_mac_address logic
can: ucan: fix non-atomic allocation in completion handler
RDMA/qib: Validate ->show()/store() callbacks before calling them
iomap: Fix pipe page leakage during splicing
thermal: Fix deadlock in thermal thermal_zone_device_check
vcs: prevent write access to vcsu devices
binder: Fix race between mmap() and binder_alloc_print_pages()
binder: Handle start==NULL in binder_update_page_range()
ALSA: hda - Fix pending unsol events at shutdown
md/raid0: Fix an error message in raid0_make_request()
watchdog: aspeed: Fix clock behaviour for ast2600
perf script: Fix invalid LBR/binary mismatch error
splice: don't read more than available pipe space
iomap: partially revert 4721a60109 (simulated directio short read on EFAULT)
xfs: add missing error check in xfs_prepare_shift()
ASoC: rsnd: fixup MIX kctrl registration
KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332)
net: qrtr: fix memort leak in qrtr_tun_write_iter
appletalk: Fix potential NULL pointer dereference in unregister_snap_client
appletalk: Set error code if register_snap_client failed
Linux 4.19.89
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie3fa59adde9a7e9a6d4684de0e95de14a8b83d0b
[ Upstream commit a4d26f1a09 ]
During development of a serial console driver with a gcc 8.2.0
toolchain for RISC-V, the following modpost warning appeared:
----
WARNING: vmlinux.o(.data+0x19b10): Section mismatch in reference from the variable .LANCHOR1 to the function .init.text:sifive_serial_console_setup()
The variable .LANCHOR1 references
the function __init sifive_serial_console_setup()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
----
".LANCHOR1" is an ELF local symbol, automatically created by gcc's section
anchor generation code:
https://gcc.gnu.org/onlinedocs/gccint/Anchored-Addresses.htmlhttps://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/varasm.c;h=cd9591a45617464946dcf9a126dde277d9de9804;hb=9fb89fa845c1b2e0a18d85ada0b077c84508ab78#l7473
This was verified by compiling the kernel with -fno-section-anchors
and observing that the ".LANCHOR1" ELF local symbol disappeared, and
modpost no longer warned about the section mismatch. The serial
driver code idiom triggering the warning is standard Linux serial
driver practice that has a specific whitelist inclusion in modpost.c.
I'm neither a modpost nor an ELF expert, but naively, it doesn't seem
useful for modpost to report section mismatch warnings caused by ELF
local symbols by default. Local symbols have compiler-generated
names, and thus bypass modpost's whitelisting algorithm, which relies
on the presence of a non-autogenerated symbol name. This increases
the likelihood that false positive warnings will be generated (as in
the above case).
Thus, disable section mismatch reporting on ELF local symbols. The
rationale here is similar to that of commit 2e3a10a155 ("ARM: avoid
ARM binutils leaking ELF local symbols") and of similar code already
present in modpost.c:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/mod/modpost.c?h=v4.19-rc4&id=7876320f88802b22d4e2daf7eb027dd14175a0f8#n1256
This third version of the patch implements a suggestion from Masahiro
Yamada <yamada.masahiro@socionext.com> to restructure the code as an
additional pattern matching step inside secref_whitelist(), and
further improves the patch description.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 70523a3ce5 ]
The updated version of dtc has a bug fix for simple_bus_reg warnings
and lots of warnings are generated now. So disable this warning by
default.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
LLD always splits sections with LTO, which increases module sizes. This
change adds a linker script that merges the split sections in the final
module.
Bug: 145297228
Change-Id: I247e8bd029bd0f98a4fa1cd4db7f6398467b8e55
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Merge tag 'printk-for-5.5-pr-warning-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull pr_warning() removal from Petr Mladek.
- Final removal of the unused pr_warning() alias.
You're supposed to use just "pr_warn()" in the kernel.
* tag 'printk-for-5.5-pr-warning-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
checkpatch: Drop pr_warning check
printk: Drop pr_warning definition
Fix up for "printk: Drop pr_warning definition"
workqueue: Use pr_warn instead of pr_warning
Pull networking fixes from David Miller:
1) More jumbo frame fixes in r8169, from Heiner Kallweit.
2) Fix bpf build in minimal configuration, from Alexei Starovoitov.
3) Use after free in slcan driver, from Jouni Hogander.
4) Flower classifier port ranges don't work properly in the HW offload
case, from Yoshiki Komachi.
5) Use after free in hns3_nic_maybe_stop_tx(), from Yunsheng Lin.
6) Out of bounds access in mqprio_dump(), from Vladyslav Tarasiuk.
7) Fix flow dissection in dsa TX path, from Alexander Lobakin.
8) Stale syncookie timestampe fixes from Guillaume Nault.
[ Did an evil merge to silence a warning introduced by this pull - Linus ]
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits)
r8169: fix rtl_hw_jumbo_disable for RTL8168evl
net_sched: validate TCA_KIND attribute in tc_chain_tmplt_add()
r8169: add missing RX enabling for WoL on RTL8125
vhost/vsock: accept only packets with the right dst_cid
net: phy: dp83867: fix hfs boot in rgmii mode
net: ethernet: ti: cpsw: fix extra rx interrupt
inet: protect against too small mtu values.
gre: refetch erspan header from skb->data after pskb_may_pull()
pppoe: remove redundant BUG_ON() check in pppoe_pernet
tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE()
tcp: tighten acceptance of ACKs not matching a child socket
tcp: fix rejected syncookies due to stale timestamps
lpc_eth: kernel BUG on remove
tcp: md5: fix potential overestimation of TCP option space
net: sched: allow indirect blocks to bind to clsact in TC
net: core: rename indirect block ingress cb function
net-sysfs: Call dev_hold always in netdev_queue_add_kobject
net: dsa: fix flow dissection on Tx path
net/tls: Fix return values to avoid ENOTSUPP
net: avoid an indirect call in ____sys_recvmsg()
...
LLD always splits sections with LTO, which increases module sizes. This
change adds a linker script that merges the split sections in the final
module.
Bug: 145297228
Change-Id: I247e8bd029bd0f98a4fa1cd4db7f6398467b8e55
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Merge 4.19.88 into android-4.19
Changes in 4.19.88
clk: meson: gxbb: let sar_adc_clk_div set the parent clock rate
clocksource/drivers/mediatek: Fix error handling
ASoC: msm8916-wcd-analog: Fix RX1 selection in RDAC2 MUX
ASoC: compress: fix unsigned integer overflow check
reset: Fix memory leak in reset_control_array_put()
clk: samsung: exynos5433: Fix error paths
ASoC: kirkwood: fix external clock probe defer
ASoC: kirkwood: fix device remove ordering
clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
pinctrl: cherryview: Allocate IRQ chip dynamic
ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts
reset: fix reset_control_ops kerneldoc comment
clk: at91: avoid sleeping early
clk: sunxi: Fix operator precedence in sunxi_divs_clk_setup
clk: sunxi-ng: a80: fix the zero'ing of bits 16 and 18
ARM: dts: sun8i-a83t-tbs-a711: Fix WiFi resume from suspend
samples/bpf: fix build by setting HAVE_ATTR_TEST to zero
powerpc/bpf: Fix tail call implementation
idr: Fix integer overflow in idr_for_each_entry
idr: Fix idr_alloc_u32 on 32-bit systems
x86/resctrl: Prevent NULL pointer dereference when reading mondata
clk: ti: dra7-atl-clock: Remove ti_clk_add_alias call
clk: ti: clkctrl: Fix failed to enable error with double udelay timeout
net: fec: add missed clk_disable_unprepare in remove
bridge: ebtables: don't crash when using dnat target in output chains
can: peak_usb: report bus recovery as well
can: c_can: D_CAN: c_can_chip_config(): perform a sofware reset on open
can: rx-offload: can_rx_offload_queue_tail(): fix error handling, avoid skb mem leak
can: rx-offload: can_rx_offload_offload_one(): do not increase the skb_queue beyond skb_queue_len_max
can: rx-offload: can_rx_offload_offload_one(): increment rx_fifo_errors on queue overflow or OOM
can: rx-offload: can_rx_offload_offload_one(): use ERR_PTR() to propagate error value in case of errors
can: rx-offload: can_rx_offload_irq_offload_timestamp(): continue on error
can: rx-offload: can_rx_offload_irq_offload_fifo(): continue on error
can: flexcan: increase error counters if skb enqueueing via can_rx_offload_queue_sorted() fails
can: mcp251x: mcp251x_restart_work_handler(): Fix potential force_quit race condition
watchdog: meson: Fix the wrong value of left time
ASoC: stm32: sai: add restriction on mmap support
scripts/gdb: fix debugging modules compiled with hot/cold partitioning
net: bcmgenet: use RGMII loopback for MAC reset
net: bcmgenet: reapply manual settings to the PHY
net: mscc: ocelot: fix __ocelot_rmw_ix prototype
ceph: return -EINVAL if given fsc mount option on kernel w/o support
net/fq_impl: Switch to kvmalloc() for memory allocation
mac80211: fix station inactive_time shortly after boot
block: drbd: remove a stray unlock in __drbd_send_protocol()
pwm: bcm-iproc: Prevent unloading the driver module while in use
scsi: target/tcmu: Fix queue_cmd_ring() declaration
scsi: lpfc: Fix kernel Oops due to null pring pointers
scsi: lpfc: Fix dif and first burst use in write commands
ARM: dts: Fix up SQ201 flash access
tracing: Lock event_mutex before synth_event_mutex
ARM: debug-imx: only define DEBUG_IMX_UART_PORT if needed
ARM: dts: imx51: Fix memory node duplication
ARM: dts: imx53: Fix memory node duplication
ARM: dts: imx31: Fix memory node duplication
ARM: dts: imx35: Fix memory node duplication
ARM: dts: imx7: Fix memory node duplication
ARM: dts: imx6ul: Fix memory node duplication
ARM: dts: imx6sx: Fix memory node duplication
ARM: dts: imx6sl: Fix memory node duplication
ARM: dts: imx50: Fix memory node duplication
ARM: dts: imx23: Fix memory node duplication
ARM: dts: imx1: Fix memory node duplication
ARM: dts: imx27: Fix memory node duplication
ARM: dts: imx25: Fix memory node duplication
ARM: dts: imx53-voipac-dmm-668: Fix memory node duplication
parisc: Fix serio address output
parisc: Fix HP SDC hpa address output
ARM: dts: Fix hsi gdd range for omap4
arm64: mm: Prevent mismatched 52-bit VA support
arm64: smp: Handle errors reported by the firmware
bus: ti-sysc: Check for no-reset and no-idle flags at the child level
platform/x86: mlx-platform: Fix LED configuration
ARM: OMAP1: fix USB configuration for device-only setups
RDMA/hns: Fix the bug while use multi-hop of pbl
arm64: preempt: Fix big-endian when checking preempt count in assembly
RDMA/vmw_pvrdma: Use atomic memory allocation in create AH
PM / AVS: SmartReflex: NULL check before some freeing functions is not needed
xfs: zero length symlinks are not valid
ARM: ks8695: fix section mismatch warning
ACPI / LPSS: Ignore acpi_device_fix_up_power() return value
scsi: lpfc: Enable Management features for IF_TYPE=6
scsi: qla2xxx: Fix NPIV handling for FC-NVMe
scsi: qla2xxx: Fix for FC-NVMe discovery for NPIV port
nvme: provide fallback for discard alloc failure
s390/zcrypt: make sysfs reset attribute trigger queue reset
crypto: user - support incremental algorithm dumps
arm64: dts: renesas: draak: Fix CVBS input
mwifiex: fix potential NULL dereference and use after free
mwifiex: debugfs: correct histogram spacing, formatting
brcmfmac: set F2 watermark to 256 for 4373
brcmfmac: set SDIO F1 MesBusyCtrl for CYW4373
rtl818x: fix potential use after free
bcache: do not check if debug dentry is ERR or NULL explicitly on remove
bcache: do not mark writeback_running too early
xfs: require both realtime inodes to mount
nvme: fix kernel paging oops
ubifs: Fix default compression selection in ubifs
ubi: Put MTD device after it is not used
ubi: Do not drop UBI device reference before using
microblaze: adjust the help to the real behavior
microblaze: move "... is ready" messages to arch/microblaze/Makefile
microblaze: fix multiple bugs in arch/microblaze/boot/Makefile
iwlwifi: move iwl_nvm_check_version() into dvm
iwlwifi: mvm: force TCM re-evaluation on TCM resume
iwlwifi: pcie: fix erroneous print
iwlwifi: pcie: set cmd_len in the correct place
gpio: pca953x: Fix AI overflow on PCAL6524
gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB
kvm: vmx: Set IA32_TSC_AUX for legacy mode guests
Revert "KVM: nVMX: reset cache/shadows when switching loaded VMCS"
Revert "KVM: nVMX: move check_vmentry_postreqs() call to nested_vmx_enter_non_root_mode()"
crypto/chelsio/chtls: listen fails with multiadapt
VSOCK: bind to random port for VMADDR_PORT_ANY
mmc: meson-gx: make sure the descriptor is stopped on errors
mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD_SET
usb: ehci-omap: Fix deferred probe for phy handling
btrfs: Check for missing device before bio submission in btrfs_map_bio
btrfs: fix ncopies raid_attr for RAID56
btrfs: dev-replace: set result code of cancel by status of scrub
Btrfs: allow clear_extent_dirty() to receive a cached extent state record
btrfs: only track ref_heads in delayed_ref_updates
serial: sh-sci: Fix crash in rx_timer_fn() on PIO fallback
HID: intel-ish-hid: fixes incorrect error handling
gpio: raspberrypi-exp: decrease refcount on firmware dt node
serial: 8250: Rate limit serial port rx interrupts during input overruns
kprobes/x86/xen: blacklist non-attachable xen interrupt functions
xen/pciback: Check dev_data before using it
kprobes: Blacklist symbols in arch-defined prohibited area
kprobes/x86: Show x86-64 specific blacklisted symbols correctly
vfio-mdev/samples: Use u8 instead of char for handle functions
memory: omap-gpmc: Get the header of the enum
pinctrl: xway: fix gpio-hog related boot issues
net/mlx5: Continue driver initialization despite debugfs failure
netfilter: nf_nat_sip: fix RTP/RTCP source port translations
exofs_mount(): fix leaks on failure exits
bnxt_en: Return linux standard errors in bnxt_ethtool.c
bnxt_en: Save ring statistics before reset.
bnxt_en: query force speeds before disabling autoneg mode.
KVM: s390: unregister debug feature on failing arch init
pinctrl: sh-pfc: r8a77990: Fix MOD_SEL0 SEL_I2C1 field width
pinctrl: sh-pfc: sh7264: Fix PFCR3 and PFCR0 register configuration
pinctrl: sh-pfc: sh7734: Fix shifted values in IPSR10
HID: doc: fix wrong data structure reference for UHID_OUTPUT
dm flakey: Properly corrupt multi-page bios.
gfs2: take jdata unstuff into account in do_grow
dm raid: fix false -EBUSY when handling check/repair message
xfs: Align compat attrlist_by_handle with native implementation.
xfs: Fix bulkstat compat ioctls on x32 userspace.
IB/qib: Fix an error code in qib_sdma_verbs_send()
clocksource/drivers/fttmr010: Fix invalid interrupt register access
vxlan: Fix error path in __vxlan_dev_create()
powerpc/book3s/32: fix number of bats in p/v_block_mapped()
powerpc/xmon: fix dump_segments()
drivers/regulator: fix a missing check of return value
Bluetooth: hci_bcm: Handle specific unknown packets after firmware loading
serial: max310x: Fix tx_empty() callback
openrisc: Fix broken paths to arch/or32
RDMA/srp: Propagate ib_post_send() failures to the SCSI mid-layer
scsi: qla2xxx: deadlock by configfs_depend_item
scsi: csiostor: fix incorrect dma device in case of vport
brcmfmac: Fix access point mode
ath6kl: Only use match sets when firmware supports it
ath6kl: Fix off by one error in scan completion
powerpc/perf: Fix unit_sel/cache_sel checks
powerpc/32: Avoid unsupported flags with clang
powerpc/prom: fix early DEBUG messages
powerpc/mm: Make NULL pointer deferences explicit on bad page faults.
powerpc/44x/bamboo: Fix PCI range
vfio/spapr_tce: Get rid of possible infinite loop
powerpc/powernv/eeh/npu: Fix uninitialized variables in opal_pci_eeh_freeze_status
drbd: ignore "all zero" peer volume sizes in handshake
drbd: reject attach of unsuitable uuids even if connected
drbd: do not block when adjusting "disk-options" while IO is frozen
drbd: fix print_st_err()'s prototype to match the definition
IB/rxe: Make counters thread safe
bpf/cpumap: make sure frame_size for build_skb is aligned if headroom isn't
regulator: tps65910: fix a missing check of return value
powerpc/83xx: handle machine check caused by watchdog timer
powerpc/pseries: Fix node leak in update_lmb_associativity_index()
powerpc: Fix HMIs on big-endian with CONFIG_RELOCATABLE=y
crypto: mxc-scc - fix build warnings on ARM64
pwm: clps711x: Fix period calculation
net/netlink_compat: Fix a missing check of nla_parse_nested
net/net_namespace: Check the return value of register_pernet_subsys()
f2fs: fix block address for __check_sit_bitmap
f2fs: fix to dirty inode synchronously
um: Include sys/uio.h to have writev()
um: Make GCOV depend on !KCOV
net: (cpts) fix a missing check of clk_prepare
net: stmicro: fix a missing check of clk_prepare
net: dsa: bcm_sf2: Propagate error value from mdio_write
atl1e: checking the status of atl1e_write_phy_reg
tipc: fix a missing check of genlmsg_put
net: marvell: fix a missing check of acpi_match_device
net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe()
ocfs2: clear journal dirty flag after shutdown journal
vmscan: return NODE_RECLAIM_NOSCAN in node_reclaim() when CONFIG_NUMA is n
mm/page_alloc.c: free order-0 pages through PCP in page_frag_free()
mm/page_alloc.c: use a single function to free page
mm/page_alloc.c: deduplicate __memblock_free_early() and memblock_free()
tools/vm/page-types.c: fix "kpagecount returned fewer pages than expected" failures
netfilter: nf_tables: fix a missing check of nla_put_failure
xprtrdma: Prevent leak of rpcrdma_rep objects
infiniband: bnxt_re: qplib: Check the return value of send_message
infiniband/qedr: Potential null ptr dereference of qp
firmware: arm_sdei: fix wrong of_node_put() in init function
firmware: arm_sdei: Fix DT platform device creation
lib/genalloc.c: fix allocation of aligned buffer from non-aligned chunk
lib/genalloc.c: use vzalloc_node() to allocate the bitmap
fork: fix some -Wmissing-prototypes warnings
drivers/base/platform.c: kmemleak ignore a known leak
lib/genalloc.c: include vmalloc.h
mtd: Check add_mtd_device() ret code
tipc: fix memory leak in tipc_nl_compat_publ_dump
net/core/neighbour: tell kmemleak about hash tables
ata: ahci: mvebu: do Armada 38x configuration only on relevant SoCs
PCI/MSI: Return -ENOSPC from pci_alloc_irq_vectors_affinity()
net/core/neighbour: fix kmemleak minimal reference count for hash tables
serial: 8250: Fix serial8250 initialization crash
gpu: ipu-v3: pre: don't trigger update if buffer address doesn't change
sfc: suppress duplicate nvmem partition types in efx_ef10_mtd_probe
ip_tunnel: Make none-tunnel-dst tunnel port work with lwtunnel
decnet: fix DN_IFREQ_SIZE
net/smc: prevent races between smc_lgr_terminate() and smc_conn_free()
net/smc: don't wait for send buffer space when data was already sent
mm/hotplug: invalid PFNs from pfn_to_online_page()
xfs: end sync buffer I/O properly on shutdown error
net/smc: fix sender_free computation
blktrace: Show requests without sector
net/smc: fix byte_order for rx_curs_confirmed
tipc: fix skb may be leaky in tipc_link_input
ASoC: samsung: i2s: Fix prescaler setting for the secondary DAI
sfc: initialise found bitmap in efx_ef10_mtd_probe
geneve: change NET_UDP_TUNNEL dependency to select
net: fix possible overflow in __sk_mem_raise_allocated()
net: ip_gre: do not report erspan_ver for gre or gretap
net: ip6_gre: do not report erspan_ver for ip6gre or ip6gretap
sctp: don't compare hb_timer expire date before starting it
bpf: decrease usercnt if bpf_map_new_fd() fails in bpf_map_get_fd_by_id()
mmc: core: align max segment size with logical block size
net: dev: Use unsigned integer as an argument to left-shift
kvm: properly check debugfs dentry before using it
bpf: drop refcount if bpf_map_new_fd() fails in map_create()
net: hns3: Change fw error code NOT_EXEC to NOT_SUPPORTED
net: hns3: fix PFC not setting problem for DCB module
net: hns3: fix an issue for hclgevf_ae_get_hdev
net: hns3: fix an issue for hns3_update_new_int_gl
iommu/amd: Fix NULL dereference bug in match_hid_uid
apparmor: delete the dentry in aafs_remove() to avoid a leak
scsi: libsas: Support SATA PHY connection rate unmatch fixing during discovery
ACPI / APEI: Don't wait to serialise with oops messages when panic()ing
ACPI / APEI: Switch estatus pool to use vmalloc memory
scsi: hisi_sas: shutdown axi bus to avoid exception CQ returned
scsi: libsas: Check SMP PHY control function result
RDMA/hns: Fix the bug with updating rq head pointer when flush cqe
RDMA/hns: Bugfix for the scene without receiver queue
RDMA/hns: Fix the state of rereg mr
RDMA/hns: Use GFP_ATOMIC in hns_roce_v2_modify_qp
ASoC: rt5645: Headphone Jack sense inverts on the LattePanda board
powerpc/pseries/dlpar: Fix a missing check in dlpar_parse_cc_property()
xdp: fix cpumap redirect SKB creation bug
mtd: Remove a debug trace in mtdpart.c
mm, gup: add missing refcount overflow checks on s390
clk: at91: fix update bit maps on CFG_MOR write
clk: at91: generated: set audio_pll_allowed in at91_clk_register_generated()
usb: dwc2: use a longer core rest timeout in dwc2_core_reset()
staging: rtl8192e: fix potential use after free
staging: rtl8723bs: Drop ACPI device ids
staging: rtl8723bs: Add 024c:0525 to the list of SDIO device-ids
USB: serial: ftdi_sio: add device IDs for U-Blox C099-F9P
mei: bus: prefix device names on bus with the bus name
mei: me: add comet point V device id
thunderbolt: Power cycle the router if NVM authentication fails
xfrm: Fix memleak on xfrm state destroy
media: v4l2-ctrl: fix flags for DO_WHITE_BALANCE
net: macb: fix error format in dev_err()
pwm: Clear chip_data in pwm_put()
media: atmel: atmel-isc: fix asd memory allocation
media: atmel: atmel-isc: fix INIT_WORK misplacement
macvlan: schedule bc_work even if error
net: psample: fix skb_over_panic
openvswitch: fix flow command message size
sctp: Fix memory leak in sctp_sf_do_5_2_4_dupcook
slip: Fix use-after-free Read in slip_open
openvswitch: drop unneeded BUG_ON() in ovs_flow_cmd_build_info()
openvswitch: remove another BUG_ON()
selftests: bpf: test_sockmap: handle file creation failures gracefully
tipc: fix link name length check
sctp: cache netns in sctp_ep_common
net: sched: fix `tc -s class show` no bstats on class with nolock subqueues
net: macb: add missed tasklet_kill
ext4: add more paranoia checking in ext4_expand_extra_isize handling
watchdog: sama5d4: fix WDD value to be always set to max
net: macb: Fix SUBNS increment and increase resolution
net: macb driver, check for SKBTX_HW_TSTAMP
mtd: rawnand: atmel: Fix spelling mistake in error message
mtd: rawnand: atmel: fix possible object reference leak
mtd: spi-nor: cast to u64 to avoid uint overflows
drm/atmel-hlcdc: revert shift by 8
mailbox: stm32_ipcc: add spinlock to fix channels concurrent access
tcp: exit if nothing to retransmit on RTO timeout
HID: core: check whether Usage Page item is after Usage ID items
crypto: stm32/hash - Fix hmac issue more than 256 bytes
media: stm32-dcmi: fix DMA corruption when stopping streaming
media: stm32-dcmi: fix check of pm_runtime_get_sync return value
hwrng: stm32 - fix unbalanced pm_runtime_enable
clk: stm32mp1: fix HSI divider flag
clk: stm32mp1: fix mcu divider table
clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocks
clk: stm32mp1: parent clocks update
mailbox: mailbox-test: fix null pointer if no mmio
pinctrl: stm32: fix memory leak issue
ASoC: stm32: i2s: fix dma configuration
ASoC: stm32: i2s: fix 16 bit format support
ASoC: stm32: i2s: fix IRQ clearing
ASoC: stm32: sai: add missing put_device()
dmaengine: stm32-dma: check whether length is aligned on FIFO threshold
platform/x86: hp-wmi: Fix ACPI errors caused by too small buffer
platform/x86: hp-wmi: Fix ACPI errors caused by passing 0 as input size
net: fec: fix clock count mis-match
Linux 4.19.88
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifd3801a77cb551be72788031e7fcfc8a1d4fd197
[ Upstream commit 8731acc506 ]
gcc's -freorder-blocks-and-partition option makes it group frequently
and infrequently used code in .text.hot and .text.unlikely sections
respectively. At least when building modules on s390, this option is
used by default.
gdb assumes that all code is located in .text section, and that .text
section is located at module load address. With such modules this is no
longer the case: there is code in .text.hot and .text.unlikely, and
either of them might precede .text.
Fix by explicitly telling gdb the addresses of code sections.
It might be tempting to do this for all sections, not only the ones in
the white list. Unfortunately, gdb appears to have an issue, when
telling it about e.g. loadable .note.gnu.build-id section causes it to
think that non-loadable .note.Linux section is loaded at address 0,
which in turn causes NULL pointers to be resolved to bogus symbols. So
keep using the white list approach for the time being.
Link: http://lkml.kernel.org/r/20191028152734.13065-1-iii@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
The is_maintained_obsolete function can be called twice using the same
filename. This function spawns a process using get_maintainer.pl.
Store the status of each filename when spawned and use the stored result
to eliminate the spawning of unnecessary duplicate child processes.
Example:
old:
$ time ./scripts/checkpatch.pl hp100-Move-to-staging.patch > /dev/null
real 0m1.767s
user 0m1.634s
sys 0m0.141s
new:
$ time ./scripts/checkpatch.pl hp100-Move-to-staging.patch > /dev/null
real 0m1.184s
user 0m1.085s
sys 0m0.103s
Link: http://lkml.kernel.org/r/b982566a2b9b4825badce36fdfc3032bd0005151.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ignore all upper-case variants before and after SI units like mA, mV and
uV so uses like RANGE_mA do not emit a CAMELCASE message.
Link: http://lkml.kernel.org/r/5ce6f9131327fd2e12d7a0e20a55f588448de090.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Jules Irenge <jbi.octave@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A Fixes: lines in a commit message generally indicate that a previous
commit was inadequate for whatever reason.
The signers of the previous inadequate commit should also be cc'd on
this new commit so update get_maintainer to find the old commit and add
the original signers.
Link: http://lkml.kernel.org/r/33605b9fc0e0f711236951ae84185a6218acff4f.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- remove unneeded asm headers from hexagon, ia64
- add 'dir-pkg' target, which works like 'tar-pkg' but skips archiving
- add 'helpnewconfig' target, which shows help for new CONFIG options
- support 'make nsdeps' for external modules
- make rebuilds faster by deleting $(wildcard $^) checks
- remove compile tests for kernel-space headers
- refactor modpost to simplify modversion handling
- make single target builds faster
- optimize and clean up scripts/kallsyms.c
- refactor various Makefiles and scripts
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Merge tag 'kbuild-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- remove unneeded asm headers from hexagon, ia64
- add 'dir-pkg' target, which works like 'tar-pkg' but skips archiving
- add 'helpnewconfig' target, which shows help for new CONFIG options
- support 'make nsdeps' for external modules
- make rebuilds faster by deleting $(wildcard $^) checks
- remove compile tests for kernel-space headers
- refactor modpost to simplify modversion handling
- make single target builds faster
- optimize and clean up scripts/kallsyms.c
- refactor various Makefiles and scripts
* tag 'kbuild-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (59 commits)
MAINTAINERS: update Kbuild/Kconfig maintainer's email address
scripts/kallsyms: remove redundant initializers
scripts/kallsyms: put check_symbol_range() calls close together
scripts/kallsyms: make check_symbol_range() void function
scripts/kallsyms: move ignored symbol types to is_ignored_symbol()
scripts/kallsyms: move more patterns to the ignored_prefixes array
scripts/kallsyms: skip ignored symbols very early
scripts/kallsyms: add const qualifiers where possible
scripts/kallsyms: make find_token() return (unsigned char *)
scripts/kallsyms: replace prefix_underscores_count() with strspn()
scripts/kallsyms: add sym_name() to mitigate cast ugliness
scripts/kallsyms: remove unneeded length check for prefix matching
scripts/kallsyms: remove redundant is_arm_mapping_symbol()
scripts/kallsyms: set relative_base more effectively
scripts/kallsyms: shrink table before sorting it
scripts/kallsyms: fix definitely-lost memory leak
scripts/kallsyms: remove unneeded #ifndef ARRAY_SIZE
kbuild: make single target builds even faster
modpost: respect the previous export when 'exported twice' is warned
modpost: do not set ->preloaded for symbols from Module.symvers
...
- Various kerneldoc script enhancements.
- More RST conversions; those are slowing down as we run out of things to
convert, but we're a ways from done still.
- Dan's "maintainer profile entry" work landed at last. Now we just need
to get maintainers to fill in the profiles...
- A reworking of the parallel build setup to work better with a variety of
systems (and to not take over huge systems entirely in particular).
- The MAINTAINERS file is now converted to RST during the build.
Hopefully nobody ever tries to print this thing, or they will need to
load a lot of paper.
- A script and documentation making it easy for maintainers to add Link:
tags at commit time.
Also included is the removal of a bunch of spurious CR characters.
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Merge tag 'docs-5.5a' of git://git.lwn.net/linux
Pull Documentation updates from Jonathan Corbet:
"Here are the main documentation changes for 5.5:
- Various kerneldoc script enhancements.
- More RST conversions; those are slowing down as we run out of
things to convert, but we're a ways from done still.
- Dan's "maintainer profile entry" work landed at last. Now we just
need to get maintainers to fill in the profiles...
- A reworking of the parallel build setup to work better with a
variety of systems (and to not take over huge systems entirely in
particular).
- The MAINTAINERS file is now converted to RST during the build.
Hopefully nobody ever tries to print this thing, or they will need
to load a lot of paper.
- A script and documentation making it easy for maintainers to add
Link: tags at commit time.
Also included is the removal of a bunch of spurious CR characters"
* tag 'docs-5.5a' of git://git.lwn.net/linux: (91 commits)
docs: remove a bunch of stray CRs
docs: fix up the maintainer profile document
libnvdimm, MAINTAINERS: Maintainer Entry Profile
Maintainer Handbook: Maintainer Entry Profile
MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile
docs, parallelism: Rearrange how jobserver reservations are made
docs, parallelism: Do not leak blocking mode to other readers
docs, parallelism: Fix failure path and add comment
Documentation: Remove bootmem_debug from kernel-parameters.txt
Documentation: security: core.rst: fix warnings
Documentation/process/howto/kokr: Update for 4.x -> 5.x versioning
Documentation/translation: Use Korean for Korean translation title
docs/memory-barriers.txt: Remove remaining references to mmiowb()
docs/memory-barriers.txt/kokr: Update I/O section to be clearer about CPU vs thread
docs/memory-barriers.txt/kokr: Fix style, spacing and grammar in I/O section
Documentation/kokr: Kill all references to mmiowb()
docs/memory-barriers.txt/kokr: Rewrite "KERNEL I/O BARRIER EFFECTS" section
docs: Add initial documentation for devfreq
Documentation: Document how to get links with git am
docs: Add request_irq() documentation
...
- DT schemas for PWM, syscon, power domains, SRAM, syscon-reboot,
syscon-poweroff, renesas-irqc, simple-pm-bus, renesas-bsc, pwm-rcar,
Renesas tpu, at24 eeprom, rtc-sh, Allwinner PS/2, sharp,ld-d5116z01b
panel, Arm SMMU, max77650, Meson CEC, Amlogic canvas and DWC3 glue,
Allwinner A10 mUSB and CAN, TI Davinci MDIO, QCom QCS404 interconnect,
Unisoc/Spreadtrum SoCs and UART
- Convert a bunch of Samsung bindings to DT schema
- Convert a bunch of ST stm32 bindings to DT schema
- Realtek and Exynos additions to Arm Mali bindings
- Fix schema errors in RiscV CPU schema
- Various schema fixes from improved meta-schema checks
- Improve the handling of 'dma-ranges' and in particular fix DMA mask
setup on PCI bridges
- Fix a memory leak in add_changeset_property() and DT unit tests.
- Several documentation improvements for schema validation
- Rework build rules to improve schema validation errors
- Color output for dtx_diff
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Merge tag 'devicetree-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
- DT schemas for PWM, syscon, power domains, SRAM, syscon-reboot,
syscon-poweroff, renesas-irqc, simple-pm-bus, renesas-bsc, pwm-rcar,
Renesas tpu, at24 eeprom, rtc-sh, Allwinner PS/2, sharp,ld-d5116z01b
panel, Arm SMMU, max77650, Meson CEC, Amlogic canvas and DWC3 glue,
Allwinner A10 mUSB and CAN, TI Davinci MDIO, QCom QCS404
interconnect, Unisoc/Spreadtrum SoCs and UART
- Convert a bunch of Samsung bindings to DT schema
- Convert a bunch of ST stm32 bindings to DT schema
- Realtek and Exynos additions to Arm Mali bindings
- Fix schema errors in RiscV CPU schema
- Various schema fixes from improved meta-schema checks
- Improve the handling of 'dma-ranges' and in particular fix DMA mask
setup on PCI bridges
- Fix a memory leak in add_changeset_property() and DT unit tests.
- Several documentation improvements for schema validation
- Rework build rules to improve schema validation errors
- Color output for dtx_diff
* tag 'devicetree-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (138 commits)
libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h
dt-bindings: arm: Remove leftover axentia.txt
of: unittest: fix memory leak in attach_node_and_children
of: overlay: add_changeset_property() memory leak
dt-bindings: interrupt-controller: arm,gic-v3: Add missing type to interrupt-partition-* nodes
dt-bindings: firmware: ixp4xx: Drop redundant minItems/maxItems
dt-bindings: power: Rename back power_domain.txt bindings to fix references
dt-bindings: i2c: stm32: Migrate i2c-stm32 documentation to yaml
dt-bindings: mtd: Convert stm32 fmc2-nand bindings to json-schema
dt-bindings: remoteproc: convert stm32-rproc to json-schema
dt-bindings: mailbox: convert stm32-ipcc to json-schema
dt-bindings: mfd: Convert stm32 low power timers bindings to json-schema
dt-bindings: interrupt-controller: Convert stm32-exti to json-schema
dt-bindings: crypto: Convert stm32 HASH bindings to json-schema
dt-bindings: rng: Convert stm32 RNG bindings to json-schema
dt-bindings: pwm: Convert Samsung PWM bindings to json-schema
dt-bindings: pwm: Convert PWM bindings to json-schema
dt-bindings: serial: Add a new compatible string for SC9863A
dt-bindings: serial: Convert sprd-uart to json-schema
dt-bindings: arm: Add bindings for Unisoc SC9863A
...
Daniel Borkmann says:
====================
pull-request: bpf 2019-12-02
The following pull-request contains BPF updates for your *net* tree.
We've added 10 non-merge commits during the last 6 day(s) which contain
a total of 10 files changed, 60 insertions(+), 51 deletions(-).
The main changes are:
1) Fix vmlinux BTF generation for binutils pre v2.25, from Stanislav Fomichev.
2) Fix libbpf global variable relocation to take symbol's st_value offset
into account, from Andrii Nakryiko.
3) Fix libbpf build on powerpc where check_abi target fails due to different
readelf output format, from Aurelien Jarno.
4) Don't set BPF insns RO for the case when they are JITed in order to avoid
fragmenting the direct map, from Daniel Borkmann.
5) Fix static checker warning in btf_distill_func_proto() as well as a build
error due to empty enum when BPF is compiled out, from Alexei Starovoitov.
6) Fix up generation of bpf_helper_defs.h for perf, from Arnaldo Carvalho de Melo.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Here are some of the more common spelling mistakes and typos that I've
found while fixing up spelling mistakes in the kernel since July 2019.
Link: http://lkml.kernel.org/r/20191112092142.97989-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
While trying to figure out why fentry_fexit selftest doesn't pass for me
(old pahole, broken BTF), I found out that my latest patch can break vmlinux
.BTF generation. objcopy preserves section start when doing --only-section,
so there is a chance (depending on where pahole inserts .BTF section) to
have leading empty zeroes. Let's explicitly force section offset to zero.
Before:
$ objcopy --set-section-flags .BTF=alloc -O binary \
--only-section=.BTF vmlinux .btf.vmlinux.bin
$ xxd .btf.vmlinux.bin | head -n1
00000000: 0000 0000 0000 0000 0000 0000 0000 0000 ................
After:
$ objcopy --change-section-address .BTF=0 \
--set-section-flags .BTF=alloc -O binary \
--only-section=.BTF vmlinux .btf.vmlinux.bin
$ xxd .btf.vmlinux.bin | head -n1
00000000: 9feb 0100 1800 0000 0000 0000 80e1 1c00 ................
^BTF magic
As part of this change, I'm also dropping '2>/dev/null' from objcopy
invocation to be able to catch possible other issues (objcopy doesn't
produce any warnings for me anymore, it did before with --dump-section).
Fixes: da5fb18225 ("bpf: Support pre-2.25-binutils objcopy for vmlinux BTF")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191127225759.39923-1-sdf@google.com
These errors are harmless, suppress the output.
Fixes: 310afefe71 ("ANDROID: kbuild: add support for Clang LTO")
Change-Id: Ia78f2edb6aa3a93ffbca37d193f065a51f748679
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Makefile.modpost was split to Makefile.modfinal in 5.4. This file
doesn't include include/config/auto.conf, which breaks checking
for kernel configuration. This change adds the missing include and
cleans up the LTO build rule.
Bug: 145296861
Fixes: 310afefe71 ("ANDROID: kbuild: add support for Clang LTO")
Change-Id: I3e6f676e841eed730ce8cccdfbd312f63660c293
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
With LTO, the compiler doesn't necessarily obey link order for
initcalls, and the initcall variable needs to be globally unique
to avoid naming collisions.
In order to preserve the correct order, we add each variable
into its own section and generate a linker script (in
scripts/link-vmlinux.sh) to ensure the order remains correct. We
also add a __COUNTER__ prefix to the name, so we can retain the
order of initcalls within each compilation unit, and __LINE__ to
make the names more unique.
Bug: 145210207
Change-Id: Iddda881a52b7942781713b188d810b6100159a2b
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
If vmlinux BTF generation fails, but CONFIG_DEBUG_INFO_BTF is set,
.BTF section of vmlinux is empty and kernel will prohibit
BPF loading and return "in-kernel BTF is malformed".
--dump-section argument to binutils' objcopy was added in version 2.25.
When using pre-2.25 binutils, BTF generation silently fails. Convert
to --only-section which is present on pre-2.25 binutils.
Documentation/process/changes.rst states that binutils 2.21+
is supported, not sure those standards apply to BPF subsystem.
v2:
* exit and print an error if gen_btf fails (John Fastabend)
v3:
* resend with Andrii's Acked-by/Tested-by tags
Fixes: 341dfcf8d7 ("btf: expose BTF info through sysfs")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20191127161410.57327-1-sdf@google.com
Add support for printing fwnode names using a new conversion
specifier "%pfw" (Sakari Ailus), clean up the software node and
efi/apple-properties code in preparation for improved software node
reference properties handling (Dmitry Torokhov) and fix the struct
fwnode_operations description (Heikki Krogerus).
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Merge tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"Add support for printing fwnode names using a new conversion specifier
"%pfw" (Sakari Ailus), clean up the software node and
efi/apple-properties code in preparation for improved software node
reference properties handling (Dmitry Torokhov) and fix the struct
fwnode_operations description (Heikki Krogerus)"
* tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
software node: simplify property_entry_read_string_array()
software node: unify PROPERTY_ENTRY_XXX macros
software node: remove property_entry_read_uNN_array functions
software node: get rid of property_set_pointer()
software node: clean up property_copy_string_array()
software node: mark internal macros with double underscores
efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN
software node: introduce PROPERTY_ENTRY_XXX_ARRAY_LEN()
software node: remove DEV_PROP_MAX
device property: Fix the description of struct fwnode_operations
lib/test_printf: Add tests for %pfw printk modifier
lib/vsprintf: Add %pfw conversion specifier for printing fwnode names
lib/vsprintf: OF nodes are first and foremost, struct device_nodes
lib/vsprintf: Make use of fwnode API to obtain node names and separators
lib/vsprintf: Add a note on re-using %pf or %pF
lib/vsprintf: Remove support for %pF and %pf in favour of %pS and %ps
device property: Add a function to obtain a node's prefix
device property: Add fwnode_get_name for returning the name of a node
device property: Add functions for accessing node's parents
device property: Move fwnode_get_parent() up
...
With LTO, the compiler doesn't necessarily obey link order for
initcalls, and the initcall variables need to be globally unique
to avoid naming collisions.
In order to preserve the intended order, this change moves each
initcall variable into its own section and generates a linker
script (in scripts/link-vmlinux.sh) to define the correct order
for these sections. We also add a __COUNTER__ prefix to the name,
so we can retain the order of initcalls within each compilation
unit, and __LINE__ to help ensure uniqueness.
Bug: 145210207
Change-Id: I602038783853497790c5a2941343c546e380c525
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
With CONFIG_LTO_CLANG, clang generates LLVM IR instead of ELF object
files. As empty.o is used for probing target properties, disable LTO
for it to produce an object file instead.
Bug: 145210207
Change-Id: I618d8b86ed88ad048abdee3c541ced19d12982c0
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
With CONFIG_LTO_CLANG enabled, LLVM IR won't be compiled into object
files until modpost_link. This change postpones calls to recordmcount
until after this step.
In order to exclude ftrace_process_locs from inspection, we add a new
code section .text..ftrace, which we tell recordmcount to ignore, and
a __norecordmcount attribute for moving functions to this section.
Bug: 145210207
Change-Id: Ib77f7c431fce54243c46d584b55761ed2342965c
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This change adds the configuration option CONFIG_LTO_CLANG, and
build system support for Clang's Link Time Optimization (LTO). In
preparation for LTO support with other compilers, potentially common
parts of the changes are gated behind CONFIG_LTO instead.
With -flto, instead of object files, Clang produces LLVM bitcode,
which is compiled into a native object at link time, allowing the
final binary to be optimized globally. For more details, see:
https://llvm.org/docs/LinkTimeOptimization.html
While the kernel normally uses GNU ld for linking, LLVM supports LTO
only with LLD or GNU gold linkers. This change assumes LLD is used.
Bug: 145210207
Change-Id: If1164ff33d073358ee7d4bba84cbb06c349c4a88
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Pull networking updates from David Miller:
"Another merge window, another pull full of stuff:
1) Support alternative names for network devices, from Jiri Pirko.
2) Introduce per-netns netdev notifiers, also from Jiri Pirko.
3) Support MSG_PEEK in vsock/virtio, from Matias Ezequiel Vara
Larsen.
4) Allow compiling out the TLS TOE code, from Jakub Kicinski.
5) Add several new tracepoints to the kTLS code, also from Jakub.
6) Support set channels ethtool callback in ena driver, from Sameeh
Jubran.
7) New SCTP events SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED,
SCTP_ADDR_MADE_PRIM, and SCTP_SEND_FAILED_EVENT. From Xin Long.
8) Add XDP support to mvneta driver, from Lorenzo Bianconi.
9) Lots of netfilter hw offload fixes, cleanups and enhancements,
from Pablo Neira Ayuso.
10) PTP support for aquantia chips, from Egor Pomozov.
11) Add UDP segmentation offload support to igb, ixgbe, and i40e. From
Josh Hunt.
12) Add smart nagle to tipc, from Jon Maloy.
13) Support L2 field rewrite by TC offloads in bnxt_en, from Venkat
Duvvuru.
14) Add a flow mask cache to OVS, from Tonghao Zhang.
15) Add XDP support to ice driver, from Maciej Fijalkowski.
16) Add AF_XDP support to ice driver, from Krzysztof Kazimierczak.
17) Support UDP GSO offload in atlantic driver, from Igor Russkikh.
18) Support it in stmmac driver too, from Jose Abreu.
19) Support TIPC encryption and auth, from Tuong Lien.
20) Introduce BPF trampolines, from Alexei Starovoitov.
21) Make page_pool API more numa friendly, from Saeed Mahameed.
22) Introduce route hints to ipv4 and ipv6, from Paolo Abeni.
23) Add UDP segmentation offload to cxgb4, Rahul Lakkireddy"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1857 commits)
libbpf: Fix usage of u32 in userspace code
mm: Implement no-MMU variant of vmalloc_user_node_flags
slip: Fix use-after-free Read in slip_open
net: dsa: sja1105: fix sja1105_parse_rgmii_delays()
macvlan: schedule bc_work even if error
enetc: add support Credit Based Shaper(CBS) for hardware offload
net: phy: add helpers phy_(un)lock_mdio_bus
mdio_bus: don't use managed reset-controller
ax88179_178a: add ethtool_op_get_ts_info()
mlxsw: spectrum_router: Fix use of uninitialized adjacency index
mlxsw: spectrum_router: After underlay moves, demote conflicting tunnels
bpf: Simplify __bpf_arch_text_poke poke type handling
bpf: Introduce BPF_TRACE_x helper for the tracing tests
bpf: Add bpf_jit_blinding_enabled for !CONFIG_BPF_JIT
bpf, testing: Add various tail call test cases
bpf, x86: Emit patchable direct jump as tail call
bpf: Constant map key tracking for prog array pokes
bpf: Add poke dependency tracking for prog array maps
bpf: Add initial poke descriptor table for jit images
bpf: Move owner type, jited info into array auxiliary data
...
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Merge tag 'printk-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Allow to print symbolic error names via new %pe modifier.
- Use pr_warn() instead of the remaining pr_warning() calls. Fix
formatting of the related lines.
- Add VSPRINTF entry to MAINTAINERS.
* tag 'printk-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (32 commits)
checkpatch: don't warn about new vsprintf pointer extension '%pe'
MAINTAINERS: Add VSPRINTF
tools lib api: Renaming pr_warning to pr_warn
ASoC: samsung: Use pr_warn instead of pr_warning
lib: cpu_rmap: Use pr_warn instead of pr_warning
trace: Use pr_warn instead of pr_warning
dma-debug: Use pr_warn instead of pr_warning
vgacon: Use pr_warn instead of pr_warning
fs: afs: Use pr_warn instead of pr_warning
sh/intc: Use pr_warn instead of pr_warning
scsi: Use pr_warn instead of pr_warning
platform/x86: intel_oaktrail: Use pr_warn instead of pr_warning
platform/x86: asus-laptop: Use pr_warn instead of pr_warning
platform/x86: eeepc-laptop: Use pr_warn instead of pr_warning
oprofile: Use pr_warn instead of pr_warning
of: Use pr_warn instead of pr_warning
macintosh: Use pr_warn instead of pr_warning
idsn: Use pr_warn instead of pr_warning
ide: Use pr_warn instead of pr_warning
crypto: n2: Use pr_warn instead of pr_warning
...
Unless the address range matters, symbols can be ignored earlier,
which avoids unneeded memory allocation.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The callers of this function expect (unsigned char *). I do not see
a good reason to make this function return (void *).
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
You can do equivalent things with strspn(). I do not see noticeable
performance difference.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
sym_entry::sym is (unsigned char *) instead of (char *) because
kallsyms exploits the MSB for compression, and the characters are
used as the index of token_profit array.
However, it requires casting (unsigned char *) to (char *) in some
places since standard library functions such as strcmp(), strlen()
expect (char *).
Introduce a new helper, sym_name(), which advances the given pointer
by 1 and casts it to (char *).
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since commit 6f00df24ee ("[PATCH] Strip local symbols from kallsyms"),
all symbols starting '$' are ignored.
is_arm_mapping_symbol() particularly ignores $a, $t, etc. but it is
redundant.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, record_relative_base() iterates over the entire table to
find the minimum address, but it is not efficient because we sort
the table anyway.
After sort_symbol(), the table is sorted by address. (kallsyms parses
the 'nm -n' output, so the data is already sorted by address, but this
commit does not rely on it.)
Move record_relative_base() after sort_symbols(), and take the first
non-absolute symbol value.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, build_initial_tok_table() trims unused symbols, but it is
called after sort_symbols().
It is not efficient to sort the huge table that contains unused entries.
Shrink the table before sorting it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
build_initial_tok_table() overwrites unused sym_entry to shrink the
table size. Before the entry is overwritten, table[i].sym must be freed
since it is malloc'ed data.
This fixes the 'definitely lost' report from valgrind. I ran valgrind
against x86_64_defconfig of v5.4-rc8 kernel, and here is the summary:
[Before the fix]
LEAK SUMMARY:
definitely lost: 53,184 bytes in 2,874 blocks
[After the fix]
LEAK SUMMARY:
definitely lost: 0 bytes in 0 blocks
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
stack frame size of 4416 bytes in function 'atags_to_fdt'
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
Change-Id: I07d22e8ca0006b8797a0cfaf42d93e46fdd4ee5c
When 'exported twice' is warned, let sym_add_exported() return without
updating the symbol info. This respects the previous export, which is
ordered first in modules.order
This simplifies the code too.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Now that there is no overwrap between symbols from ELF files and
ones from Module.symvers.
So, the 'exported twice' warning should be reported irrespective
of where the symbol in question came from.
The exceptional case is external module; in some cases, we build
an external module to provide a different version/variant of the
corresponding in-kernel module, overriding the same set of exported
symbols.
You can see this use-case in upstream; tools/testing/nvdimm/libnvdimm.ko
replaces drivers/nvdimm/libnvdimm.ko in order to link it against mocked
version of core kernel symbols.
So, let's relax the 'exported twice' warning when building external
modules. The multiple export from external modules is warned only
when the previous one is from vmlinux or itself.
With this refactoring, the ugly preloading goes away.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
It is complicated to add mocked-up symbols for pre-handling CRC.
Handle CRC after all the export symbols in the relevant module
are registered.
Call handle_modversion() after the handle_symbol() iteration.
In some cases, I see atand-alone __crc_* without __ksymtab_*.
For example, ARCH=arm allyesconfig produces __crc_ccitt_veneer and
__crc_itu_t_veneer. I guess they come from crc_ccitt, crc_itu_t,
respectively. Since __*_veneer are auto-generated symbols, just
ignore them.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This function handles not only modversions, but also unresolved
symbols, export symbols, etc.
Rename it to a more proper function name.
While I was here, I also added the 'const' qualifier to *sym.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, namespace_from_kstrtabns() relies on the fact that
namespace strings are recorded in the __ksymtab_strings section.
Actually, it is coded in include/linux/export.h, but modpost does
not need to hard-code the section name.
Elf_Sym::st_shndx holds the index of the relevant section. Using it is
a more portable way to get the namespace string.
Make namespace_from_kstrtabns() simply call sym_get_data(), and delete
the info->ksymtab_strings .
While I was here, I added more 'const' qualifiers to pointers.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
When CONFIG_MODULE_REL_CRCS is enabled, the value of __crc_* is not
an absolute value, but the address to the CRC data embedded in the
.rodata section.
Getting the data pointed by the symbol value is somewhat complex.
Split it out into a new helper, sym_get_data().
I will reuse it to refactor namespace_from_kstrtabns() in the next
commit.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Rasmus correctly observed that the existing jobserver reservation only
worked if no other build targets were specified. The correct approach
is to hold the jobserver slots until sphinx has finished. To fix this,
the following changes are made:
- refactor (and rename) scripts/jobserver-exec to set an environment
variable for the maximally reserved jobserver slots and exec a
child, to release the slots on exit.
- create Documentation/scripts/parallel-wrapper.sh which examines both
$PARALLELISM and the detected "-jauto" logic from Documentation/Makefile
to decide sphinx's final -j argument.
- chain these together in Documentation/Makefile
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/lkml/eb25959a-9ec4-3530-2031-d9d716b40b20@rasmusvillemoes.dk
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20191121205929.40371-4-keescook@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This adds KCSAN instrumentation to atomic-instrumented.h.
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Kernel Concurrency Sanitizer (KCSAN) is a dynamic data-race detector for
kernel space. KCSAN is a sampling watchpoint-based data-race detector.
See the included Documentation/dev-tools/kcsan.rst for more details.
This patch adds basic infrastructure, but does not yet enable KCSAN for
any architecture.
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
- Handle CC variables containing quotes in tools-support-relr.sh script
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Will Deacon:
"One trivial fix for -rc8/final that ensures that the script used to
detect RELR relocation support in the toolchain works correctly when
$CC contains quotes. Although it fails safely (by failing to detect
the support when it exists), it would be nice to have this fixed in
5.4 given that it was only introduced in the last merge window.
Summary:
- Handle CC variables containing quotes in tools-support-relr.sh
script"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
scripts/tools-support-relr.sh: un-quote variables
Currently, some sanity checks for uapi headers are done by
scripts/headers_check.pl, which is wired up to the 'headers_check'
target in the top Makefile.
It is true compiling headers has better test coverage, but there
are still several headers excluded from the compile test. I like
to keep headers_check.pl for a while, but we can delete a lot of
code by moving the build rule to usr/include/Makefile.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
There are both positive and negative options about this feature.
At first, I thought it was a good idea, but actually Linus stated a
negative opinion (https://lkml.org/lkml/2019/9/29/227). I admit it
is ugly and annoying.
The baseline I'd like to keep is the compile-test of uapi headers.
(Otherwise, kernel developers have no way to ensure the correctness
of the exported headers.)
I will maintain a small build rule in usr/include/Makefile.
Remove the other header test functionality.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This extension was introduced in commit 57f5677e53 ("printf: add
support for printing symbolic error names").
Link: http://lkml.kernel.org/r/20191114100416.23928-1-u.kleine-koenig@pengutronix.de
To: Andy Whitcroft <apw@canonical.com>
To: Joe Perches <joe@perches.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: kernel@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
[pmladek@suse.com: Switched the ordering: eE -> Ee]
Signed-off-by: Petr Mladek <pmladek@suse.com>
When the CC variable contains quotes, e.g. when using
ccache (make CC="ccache <compiler>"), this script always
fails, so CONFIG_RELR is never enabled, even when the
toolchain supports this feature. Removing the /dev/null
redirect and invoking the script manually shows the issue:
$ CC='/usr/bin/ccache clang' ./scripts/tools-support-relr.sh
./scripts/tools-support-relr.sh: 7: ./scripts/tools-support-relr.sh: /usr/bin/ccache clang: not found
Fix this by un-quoting the variables.
Before:
$ make ARCH=arm64 CC='/usr/bin/ccache clang' LD=ld.lld \
NM=llvm-nm OBJCOPY=llvm-objcopy defconfig
$ grep RELR .config
CONFIG_ARCH_HAS_RELR=y
With this change:
$ make ARCH=arm64 CC='/usr/bin/ccache clang' LD=ld.lld \
NM=llvm-nm OBJCOPY=llvm-objcopy defconfig
$ grep RELR .config
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_ARCH_HAS_RELR=y
CONFIG_RELR=y
Fixes: 5cf896fb6b ("arm64: Add support for relocating the kernel with RELR relocations")
Reported-by: Dmitry Golovin <dima@golovin.in>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/769
Cc: Peter Collingbourne <pcc@google.com>
Signed-off-by: Ilie Halip <ilie.halip@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
This reverts commit 3fde1dfb00.
Revert to the upstream version by reinstating the original
modules-for-v5.4 merge.
Bug: 142892219
Bug: 144336692
Change-Id: I3871c67dd3cba0a5b9b2e1a87be8653a14cb9de5
Signed-off-by: Matthias Maennich <maennich@google.com>
GNU Make manual says:
$?
The names of all the prerequisites that are newer than the target,
with spaces between them.
To reflect this, rename any-prereq to newer-prereqs, which is clearer
and more intuitive.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The incremental build of Linux kernel is pretty slow when lots of
objects are compiled. The rebuild of allmodconfig may take a few
minutes even when none of the objects needs to be rebuilt.
The time-consuming part in the incremental build is the evaluation of
if_changed* macros since they are used in the recipes to compile C and
assembly source files into objects.
I notice the following code in if_changed* is expensive:
$(filter-out $(PHONY) $(wildcard $^),$^)
In the incremental build, every object has its .*.cmd file, which
contains the auto-generated list of included headers. So, $^ are
expanded into the long list of the source file + included headers,
and $(wildcard $^) checks whether they exist.
It may not be clear why this check exists there.
Here is the record of my research.
[1] The first code addition into Kbuild
This code dates back to 2002. It is the pre-git era. So, I copy-pasted
it from the historical git tree.
| commit 4a6db0791528c220655b063cf13fefc8470dbfee (HEAD)
| Author: Kai Germaschewski <kai@tp1.ruhr-uni-bochum.de>
| Date: Mon Jun 17 00:22:37 2002 -0500
|
| kbuild: Handle removed headers
|
| New and old way to handle dependencies would choke when a file
| #include'd by other files was removed, since the dependency on it was
| still recorded, but since it was gone, make has no idea what to do about
| it (and would complain with "No rule to make <file> ...")
|
| We now add targets for all the previously included files, so make will
| just ignore them if they disappear.
|
| diff --git a/Rules.make b/Rules.make
| index 6ef827d3df39..7db5301ea7db 100644
| --- a/Rules.make
| +++ b/Rules.make
| @@ -446,7 +446,7 @@ if_changed = $(if $(strip $? \
| # execute the command and also postprocess generated .d dependencies
| # file
|
| -if_changed_dep = $(if $(strip $? \
| +if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\
| $(filter-out $(cmd_$(1)),$(cmd_$@))\
| $(filter-out $(cmd_$@),$(cmd_$(1)))),\
| @set -e; \
| diff --git a/scripts/fixdep.c b/scripts/fixdep.c
| index b5d7bee8efc7..db45bd1888c0 100644
| --- a/scripts/fixdep.c
| +++ b/scripts/fixdep.c
| @@ -292,7 +292,7 @@ void parse_dep_file(void *map, size_t len)
| exit(1);
| }
| memcpy(s, m, p-m); s[p-m] = 0;
| - printf("%s: \\\n", target);
| + printf("deps_%s := \\\n", target);
| m = p+1;
|
| clear_config();
| @@ -314,7 +314,8 @@ void parse_dep_file(void *map, size_t len)
| }
| m = p + 1;
| }
| - printf("\n");
| + printf("\n%s: $(deps_%s)\n\n", target, target);
| + printf("$(deps_%s):\n", target);
| }
|
| void print_deps(void)
The "No rule to make <file> ..." error can be solved by passing -MP to
the compiler, but I think the detection of header removal is a good
feature. When a header is removed, all source files that previously
included it should be re-compiled. This makes sure we has correctly
got rid of #include directives of it.
This is also related with the behavior of $?. The GNU Make manual says:
$?
The names of all the prerequisites that are newer than the target,
with spaces between them.
This does not explain whether a non-existent prerequisite is considered
to be newer than the target.
At this point of time, GNU Make 3.7x was used, where the $? did not
include non-existent prerequisites. Therefore,
$(filter-out FORCE $(wildcard $^),$^)
was useful to detect the header removal, and to rebuild the related
objects if it is the case.
[2] Change of $? behavior
Later, the behavior of $? was changed (fixed) to include prerequisites
that did not exist.
First, GNU Make commit 64e16d6c00a5 ("Various changes getting ready for
the release of 3.81.") changed it, but in the release test of 3.81, it
turned out to break the kernel build.
See these:
- http://lists.gnu.org/archive/html/bug-make/2006-03/msg00003.html
- https://savannah.gnu.org/bugs/?16002
- https://savannah.gnu.org/bugs/?16051
Then, GNU Make commit 6d8d9b74d9c5 ("Numerous updates to tests for
issues found on Cygwin and Windows.") reverted it for the 3.81 release
to give Linux kernel time to adjust to the new behavior.
After the 3.81 release, GNU Make commit 7595f38f62af ("Fixed a number
of documentation bugs, plus some build/install issues:") re-added it.
[3] Adjustment to the new $? behavior on Kbuild side
Meanwhile, the kernel build was changed by commit 4f1933620f ("kbuild:
change kbuild to not rely on incorrect GNU make behavior") to adjust to
the new $? behavior.
[4] GNU Make 3.82 released in 2010
GNU Make 3.82 was the first release that integrated the correct $?
behavior. At this point, Kbuild dealt with GNU Make versions with
different $? behaviors.
3.81 or older:
$? does not contain any non-existent prerequisite.
$(filter-out $(PHONY) $(wildcard $^),$^) was useful to detect
removed include headers.
3.82 or newer:
$? contains non-existent prerequisites. When a header is removed,
it appears in $?. $(filter-out $(PHONY) $(wildcard $^),$^) became
a redundant check.
With the correct $? behavior, we could have dropped the expensive
check for 3.82 or later, but we did not. (Maybe nobody noticed this
optimization.)
[5] The .SECONDARY special target trips up $?
Some time later, I noticed $? did not work as expected under some
circumstances. As above, $? should contain non-existent prerequisites,
but the ones specified as SECONDARY do not appear in $?.
I asked this in GNU Make ML, and it seems a bug:
https://lists.gnu.org/archive/html/bug-make/2019-01/msg00001.html
Since commit 8e9b61b293 ("kbuild: move .SECONDARY special target to
Kbuild.include"), all files, including headers listed in .*.cmd files,
are treated as secondary.
So, we are back into the incorrect $? behavior.
If we Kbuild want to react to the header removal, we need to keep
$(filter-out $(PHONY) $(wildcard $^),$^) but this makes the rebuild
so slow.
[Summary]
- I believe noticing the header removal and recompiling related objects
is a nice feature for the build system.
- If $? worked correctly, $(filter-out $(PHONY),$?) would be enough
to detect the header removal.
- Currently, $? does not work correctly when used with .SECONDARY,
and Kbuild is hit by this bug.
- I filed a bug report for this, but not fixed yet as of writing.
- Currently, the header removal is detected by the following expensive
code:
$(filter-out $(PHONY) $(wildcard $^),$^)
- I do not want to revert commit 8e9b61b293 ("kbuild: move
.SECONDARY special target to Kbuild.include"). Specifying
.SECONDARY globally is clean, and it matches to the Kbuild policy.
This commit proactively removes the expensive check since it makes the
incremental build faster. A downside is Kbuild will no longer be able
to notice the header removal.
You can confirm it by the full-build followed by a header removal, and
then re-build.
$ make defconfig all
[ full build ]
$ rm include/linux/device.h
$ make
CALL scripts/checksyscalls.sh
CALL scripts/atomic/check-atomics.sh
DESCEND objtool
CHK include/generated/compile.h
Kernel: arch/x86/boot/bzImage is ready (#11)
Building modules, stage 2.
MODPOST 12 modules
Previously, Kbuild noticed a missing header and emits a build error.
Now, Kbuild is fine with it. This is an unusual corner-case, not a big
deal. Once the $? bug is fixed in GNU Make, everything will work fine.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The local variable, ns_entry, is unneeded.
While I was here, I also cleaned up the comparison with NULL or 0.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
scripts/nsdeps is written to take care of only in-tree modules.
Perhaps, this is not a bug, but just a design. At least,
Documentation/core-api/symbol-namespaces.rst focuses on in-tree modules.
Having said that, some people already tried nsdeps for external modules.
So, it would be nice to support it.
Reported-by: Steve French <smfrench@gmail.com>
Reported-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
Reviewed-by: Matthias Maennich <maennich@google.com>
Tested-by: Matthias Maennich <maennich@google.com>
The modpost, with the -d option given, generates per-module .ns_deps
files.
Kbuild generates per-module .mod files to carry module information.
This is convenient because Make handles multiple jobs in parallel
when the -j option is given.
On the other hand, the modpost always runs as a single thread.
I do not see a strong reason to produce separate .ns_deps files.
This commit changes the modpost to generate just one file,
modules.nsdeps, each line of which has the following format:
<module_name>: <list of missing namespaces>
Please note it contains *missing* namespaces instead of required ones.
So, modules.nsdeps is empty if the namespace dependency is all good.
This will work more efficiently because spatch will no longer process
already imported namespaces. I removed the '(if needed)' from the
nsdeps log since spatch is invoked only when needed.
This also solves the stale .ns_deps problem reported by Jessica Yu:
https://lkml.org/lkml/2019/10/28/467
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
Reviewed-by: Matthias Maennich <maennich@google.com>
Tested-by: Matthias Maennich <maennich@google.com>
'make nsdeps' invokes the modpost three times at most; before linking
vmlinux, before building modules, and finally for generating .ns_deps
files. Running the modpost again and again is not efficient.
The last two can be unified. When the -d option is given, the modpost
still does the usual job, and in addition, generates .ns_deps files.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Matthias Maennich <maennich@google.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
If ncurses is installed, but at a non-default location, the previous
error message was not helpful in resolving the situation. Now it will
suggest that pkg-config might need to be installed in addition to
ncurses.
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
make listnewconfig will list the individual options that need to be set.
This is useful but there's no easy way to get the help text associated
with the options at the same time. Introduce a new targe
'make helpnewconfig' which lists the full help text of all the
new options as well. This makes it easier to automatically generate
changes that are easy for humans to review. This command also adds
markers between each option for easier parsing.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Add a 'dir-pkg' target which just creates the same directory structures
as in tar-pkg, but doesn't package anything.
Useful when the user wants to copy the kernel tree on a machine using
ssh, rsync or whatever.
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Some "make help" text lines extend beyond 80 characters.
Wrap them before an opening parenthesis, or before 80 characters.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since commit 394053f4a4 ("kbuild: make single targets work more
correctly"), building single targets is really slow.
Speed it up by not descending into unrelated directories.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
KBUILD_SINGLE_TARGETS does not need to contain all the targets.
Change it to keep track the targets only from the current directory
and its subdirectories.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since commit 040fcc819a ("kbuild: improved modversioning support for
external modules"), the external module build reads Module.symvers in
the directory of the module itself, then dumps symbols back into it.
It accumulates stale symbols in the file when you build an external
module incrementally.
The idea behind it was, as the commit log explained, you can copy
Modules.symvers from one module to another when you need to pass symbol
information between two modules. However, the manual copy of the file
sounds questionable to me, and containing stale symbols is a downside.
Some time later, commit 0d96fb20b7 ("kbuild: Add new Kbuild variable
KBUILD_EXTRA_SYMBOLS") introduced a saner approach.
So, this commit removes the former one. Going forward, the external
module build dumps symbols into Module.symvers to be carried via
KBUILD_EXTRA_SYMBOLS, but never reads it automatically.
With the -I option removed, there is no one to set the external_module
flag unless KBUILD_EXTRA_SYMBOLS is passed. Now the -i option does it
instead.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
When building external modules, $(objtree)/Module.symvers is scanned
for symbol information of vmlinux and in-tree modules.
Additionally, vmlinux is parsed if it exists in $(objtree)/.
This is totally redundant since all the necessary information is
contained in $(objtree)/Module.symvers.
Do not parse vmlinux at all for external module builds. This makes
sense because vmlinux is deleted by 'make clean'.
'make clean' leaves all the build artifacts for building external
modules. vmlinux is unneeded for that.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The comment line "When building external modules ..." explains
the same thing as "Include the module's Makefile ..." a few lines
below.
The comment "they may be used when building the .mod.c file" is no
longer true; .mod.c file is compiled in scripts/Makefile.modfinal
since commit 9b9a3f20cb ("kbuild: split final module linking out
into Makefile.modfinal"). I still keep the code in case $(obj) or
$(src) is used in the external module Makefile.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
util.c exists both in scripts/kconfig/ and scripts/kconfig/lxdialog.
Prior to commit 54b8ae66ae ("kbuild: change *FLAGS_<basetarget>.o
to take the path relative to $(obj)"), Kbuild could not pass different
flags to source files with the same basename. Now that this issue
was solved, you can split util.c out of parser.y and compile them
independently of each other.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This tool is only used by drivers/video/logo/Makefile. No reason to
keep it in scripts/.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
One conflict in the BPF samples Makefile, some fixes in 'net' whilst
we were converting over to Makefile.target rules in 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix `make nsdeps` for modules composed of multiple source files. Since
$mod_source_files is not in quotes in the call to generate_deps_for_ns(), not
all the source files for a module were being passed to spatch.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules fix from Jessica Yu:
"Fix `make nsdeps` for modules composed of multiple source files.
Since $mod_source_files was not in quotes in the call to
generate_deps_for_ns(), not all the source files for a module were
being passed to spatch"
* tag 'modules-for-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
scripts/nsdeps: make sure to pass all module source files to spatch
From u-boot 5e817a0ea427 ("tools: rockchip: resource_tool: add sha1 for file entry").
Merge all C files to one resource_tool.c
Change-Id: If63ba77d1f5a3660bd6ef87769bb456fa086ae71
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
On Arch Linux, latexmk is installed in the texlive-core package.
Signed-off-by: Louis Taylor <louis@kragniz.eu>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently, when kernel-doc encounters a macro with a named variable
argument[1], such as this:
#define hlist_for_each_entry_rcu(pos, head, member, cond...)
... it expects the variable argument to be documented as `cond...`,
rather than `cond`. This is semantically wrong, because the name (as
used in the macro body) is actually `cond`.
With this patch, kernel-doc will accept the name without dots (`cond`
in the example above) in doc comments, and warn if the name with dots
(`cond...`) is used and verbose mode[2] is enabled.
The support for the `cond...` syntax can be removed later, when the
documentation of all such macros has been switched to the new syntax.
Testing this patch on top of v5.4-rc6, `make htmldocs` shows a few
changes in log output and HTML output:
1) The following warnings[3] are eliminated:
./include/linux/rculist.h:374: warning:
Excess function parameter 'cond' description in 'list_for_each_entry_rcu'
./include/linux/rculist.h:651: warning:
Excess function parameter 'cond' description in 'hlist_for_each_entry_rcu'
2) For list_for_each_entry_rcu and hlist_for_each_entry_rcu, the
correct description is shown
3) Named variable arguments are shown without dots
[1]: https://gcc.gnu.org/onlinedocs/cpp/Variadic-Macros.html
[2]: scripts/kernel-doc -v
[3]: See also https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?h=dev&id=5bc4bc0d6153617eabde275285b7b5a8137fdf3c
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
gcc's -freorder-blocks-and-partition option makes it group frequently
and infrequently used code in .text.hot and .text.unlikely sections
respectively. At least when building modules on s390, this option is
used by default.
gdb assumes that all code is located in .text section, and that .text
section is located at module load address. With such modules this is no
longer the case: there is code in .text.hot and .text.unlikely, and
either of them might precede .text.
Fix by explicitly telling gdb the addresses of code sections.
It might be tempting to do this for all sections, not only the ones in
the white list. Unfortunately, gdb appears to have an issue, when
telling it about e.g. loadable .note.gnu.build-id section causes it to
think that non-loadable .note.Linux section is loaded at address 0,
which in turn causes NULL pointers to be resolved to bogus symbols. So
keep using the white list approach for the time being.
Link: http://lkml.kernel.org/r/20191028152734.13065-1-iii@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge 4.19.82 into android-4.19
Changes in 4.19.82
zram: fix race between backing_dev_show and backing_dev_store
dm snapshot: introduce account_start_copy() and account_end_copy()
dm snapshot: rework COW throttling to fix deadlock
Btrfs: fix inode cache block reserve leak on failure to allocate data space
Btrfs: fix memory leak due to concurrent append writes with fiemap
btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents()
btrfs: tracepoints: Fix wrong parameter order for qgroup events
wil6210: fix freeing of rx buffers in EDMA mode
f2fs: flush quota blocks after turnning it off
scsi: lpfc: Fix a duplicate 0711 log message number.
sc16is7xx: Fix for "Unexpected interrupt: 8"
powerpc/powernv: hold device_hotplug_lock when calling memtrace_offline_pages()
f2fs: fix to recover inode's i_gc_failures during POR
f2fs: fix to recover inode->i_flags of inode block during POR
HID: i2c-hid: add Direkt-Tek DTLAPY133-1 to descriptor override
usb: dwc2: fix unbalanced use of external vbus-supply
tools/power turbostat: fix goldmont C-state limit decoding
x86/cpu: Add Atom Tremont (Jacobsville)
drm/msm/dpu: handle failures while initializing displays
bcache: fix input overflow to writeback_rate_minimum
PCI: Fix Switchtec DMA aliasing quirk dmesg noise
Btrfs: fix deadlock on tree root leaf when finding free extent
netfilter: ipset: Make invalid MAC address checks consistent
HID: i2c-hid: Disable runtime PM for LG touchscreen
HID: i2c-hid: Ignore input report if there's no data present on Elan touchpanels
HID: i2c-hid: Add Odys Winbook 13 to descriptor override
platform/x86: Add the VLV ISP PCI ID to atomisp2_pm
platform/x86: Fix config space access for intel_atomisp2_pm
ath10k: assign 'n_cipher_suites = 11' for WCN3990 to enable WPA3
clk: boston: unregister clks on failure in clk_boston_setup()
scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks
staging: mt7621-pinctrl: use pinconf-generic for 'dt_node_to_map' and 'dt_free_map'
HID: Add ASUS T100CHI keyboard dock battery quirks
NFSv4: Ensure that the state manager exits the loop on SIGKILL
HID: steam: fix boot loop with bluetooth firmware
HID: steam: fix deadlock with input devices.
samples: bpf: fix: seg fault with NULL pointer arg
usb: dwc3: gadget: early giveback if End Transfer already completed
usb: dwc3: gadget: clear DWC3_EP_TRANSFER_STARTED on cmd complete
ALSA: usb-audio: Cleanup DSD whitelist
usb: handle warm-reset port requests on hub resume
rtc: pcf8523: set xtal load capacitance from DT
arm64: Add MIDR encoding for HiSilicon Taishan CPUs
arm64: kpti: Whitelist HiSilicon Taishan v110 CPUs
mlxsw: spectrum: Set LAG port collector only when active
scsi: lpfc: Correct localport timeout duration error
CIFS: Respect SMB2 hdr preamble size in read responses
cifs: add credits from unmatched responses/messages
ALSA: hda/realtek - Apply ALC294 hp init also for S4 resume
media: vimc: Remove unused but set variables
ext4: disallow files with EXT4_JOURNAL_DATA_FL from EXT4_IOC_SWAP_BOOT
exec: load_script: Do not exec truncated interpreter path
net: dsa: mv88e6xxx: Release lock while requesting IRQ
PCI/PME: Fix possible use-after-free on remove
drm/amd/display: fix odm combine pipe reset
power: supply: max14656: fix potential use-after-free
iio: adc: meson_saradc: Fix memory allocation order
iio: fix center temperature of bmc150-accel-core
libsubcmd: Make _FORTIFY_SOURCE defines dependent on the feature
perf tests: Avoid raising SEGV using an obvious NULL dereference
perf map: Fix overlapped map handling
perf script brstackinsn: Fix recovery from LBR/binary mismatch
perf jevents: Fix period for Intel fixed counters
perf tools: Propagate get_cpuid() error
perf annotate: Propagate perf_env__arch() error
perf annotate: Fix the signedness of failure returns
perf annotate: Propagate the symbol__annotate() error return
perf annotate: Return appropriate error code for allocation failures
staging: rtl8188eu: fix null dereference when kzalloc fails
RDMA/hfi1: Prevent memory leak in sdma_init
RDMA/iwcm: Fix a lock inversion issue
HID: hyperv: Use in-place iterator API in the channel callback
nfs: Fix nfsi->nrequests count error on nfs_inode_remove_request
arm64: ftrace: Ensure synchronisation in PLT setup for Neoverse-N1 #1542419
tty: serial: owl: Fix the link time qualifier of 'owl_uart_exit()'
tty: n_hdlc: fix build on SPARC
gpio: max77620: Use correct unit for debounce times
fs: cifs: mute -Wunused-const-variable message
serial: mctrl_gpio: Check for NULL pointer
efi/cper: Fix endianness of PCIe class code
efi/x86: Do not clean dummy variable in kexec path
MIPS: include: Mark __cmpxchg as __always_inline
x86/xen: Return from panic notifier
ocfs2: clear zero in unaligned direct IO
fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()
fs: ocfs2: fix a possible null-pointer dereference in ocfs2_write_end_nolock()
fs: ocfs2: fix a possible null-pointer dereference in ocfs2_info_scan_inode_alloc()
arm64: armv8_deprecated: Checking return value for memory allocation
x86/cpu: Add Comet Lake to the Intel CPU models header
sched/vtime: Fix guest/system mis-accounting on task switch
perf/x86/amd: Change/fix NMI latency mitigation to use a timestamp
drm/amdgpu: fix memory leak
iio: imu: adis16400: release allocated memory on failure
MIPS: include: Mark __xchg as __always_inline
MIPS: fw: sni: Fix out of bounds init of o32 stack
virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr
nbd: fix possible sysfs duplicate warning
NFSv4: Fix leak of clp->cl_acceptor string
s390/uaccess: avoid (false positive) compiler warnings
tracing: Initialize iter->seq after zeroing in tracing_read_pipe()
ARM: 8914/1: NOMMU: Fix exc_ret for XIP
ALSA: hda/realtek: Reduce the Headphone static noise on XPS 9350/9360
iwlwifi: exclude GEO SAR support for 3168
nbd: verify socket is supported during setup
USB: legousbtower: fix a signedness bug in tower_probe()
thunderbolt: Use 32-bit writes when writing ring producer/consumer
ath6kl: fix a NULL-ptr-deref bug in ath6kl_usb_alloc_urb_from_pipe()
fuse: flush dirty data/metadata before non-truncate setattr
fuse: truncate pending writes on O_TRUNC
ALSA: bebob: Fix prototype of helper function to return negative value
ALSA: hda/realtek - Fix 2 front mics of codec 0x623
ALSA: hda/realtek - Add support for ALC623
UAS: Revert commit 3ae62a4209 ("UAS: fix alignment of scatter/gather segments")
USB: gadget: Reject endpoints with 0 maxpacket value
usb-storage: Revert commit 747668dbc0 ("usb-storage: Set virt_boundary_mask to avoid SG overflows")
USB: ldusb: fix ring-buffer locking
USB: ldusb: fix control-message timeout
usb: xhci: fix __le32/__le64 accessors in debugfs code
USB: serial: whiteheat: fix potential slab corruption
USB: serial: whiteheat: fix line-speed endianness
scsi: target: cxgbit: Fix cxgbit_fw4_ack()
HID: i2c-hid: add Trekstor Primebook C11B to descriptor override
HID: Fix assumption that devices have inputs
HID: fix error message in hid_open_report()
nl80211: fix validation of mesh path nexthop
s390/cmm: fix information leak in cmm_timeout_handler()
s390/idle: fix cpu idle time calculation
arm64: Ensure VM_WRITE|VM_SHARED ptes are clean by default
rtlwifi: Fix potential overflow on P2P code
dmaengine: qcom: bam_dma: Fix resource leak
dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle
drm/amdgpu/powerplay/vega10: allow undervolting in p7
NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
batman-adv: Avoid free/alloc race when handling OGM buffer
llc: fix sk_buff leak in llc_sap_state_process()
llc: fix sk_buff leak in llc_conn_service()
rxrpc: Fix call ref leak
rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record
rxrpc: Fix trace-after-put looking at the put peer record
NFC: pn533: fix use-after-free and memleaks
bonding: fix potential NULL deref in bond_update_slave_arr
net: usb: sr9800: fix uninitialized local variable
sch_netem: fix rcu splat in netem_enqueue()
ALSA: timer: Simplify error path in snd_timer_open()
ALSA: timer: Fix mutex deadlock at releasing card
ALSA: usb-audio: DSD auto-detection for Playback Designs
ALSA: usb-audio: Update DSD support quirks for Oppo and Rotel
ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB Interface
powerpc/powernv: Fix CPU idle to be called with IRQs disabled
Revert "ALSA: hda: Flush interrupts on disabling"
Linux 4.19.82
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I79ced3dcffed0086af7d8a77116e8061915677a1
[ Upstream commit ff64dd4857 ]
git-diff-index does not refresh the index for you, so using it for a
"-dirty" check can give misleading results. Commit 6147b1cf19
("scripts/setlocalversion: git: Make -dirty check more robust") tried to
fix this by switching to git-status, but it overlooked the fact that
git-status also writes to the .git directory of the source tree, which
is definitely not kosher for an out-of-tree (O=) build. That is getting
reverted.
Fortunately, git-status now supports avoiding writing to the index via
the --no-optional-locks flag, as of git 2.14. It still calculates an
up-to-date index, but it avoids writing it out to the .git directory.
So, let's retry the solution from commit 6147b1cf19 using this new
flag first, and if it fails, we assume this is an older version of git
and just use the old git-diff-index method.
It's hairy to get the 'grep -vq' (inverted matching) correct by stashing
the output of git-status (you have to be careful about the difference
betwen "empty stdin" and "blank line on stdin"), so just pipe the output
directly to grep and use a regex that's good enough for both the
git-status and git-diff-index version.
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Suggested-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Tested-by: Genki Sky <sky@genki.is>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
The nsdeps script passes a list of the module source files to
generate_deps_for_ns() as a space delimited string named $mod_source_files,
which then passes it to spatch. But since $mod_source_files is not encased
in quotes, each source file in that string is treated as a separate shell
function argument (as $2, $3, $4, etc.). However, the spatch invocation
only refers to $2, so only the first file out of $mod_source_files is
processed by spatch.
This causes problems (namely, the MODULE_IMPORT_NS() statement doesn't
get inserted) when a module is composed of many source files and the
"main" module file containing the MODULE_LICENSE() statement is not the
first file listed in $mod_source_files. Fix this by encasing
$mod_source_files in quotes so that the entirety of the string is
treated as a single argument and can be referred to as $2.
In addition, put quotes in the variable assignment of mod_source_files
to prevent any shell interpretation and field splitting.
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Using Makefile's wildcard with absolute path to detect
the presence of libyaml results in false-positive
detection when cross-compiling e.g. in yocto environment.
The latter results in build error:
| scripts/dtc/yamltree.o: In function `yaml_propval_int':
| yamltree.c: undefined reference to `yaml_sequence_start_event_initialize'
| yamltree.c: undefined reference to `yaml_emitter_emit'
| yamltree.c: undefined reference to `yaml_scalar_event_initialize'
...
Use pkg-config to locate libyaml to address this scenario.
Signed-off-by: Pavel Modilaynen <pavel.modilaynen@axis.com>
[robh: silence stderr]
Signed-off-by: Rob Herring <robh@kernel.org>
Add new -c/--color options, to enhance the diff output with color, and
improve the user's experience.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Tested-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The only slightly tricky merge conflict was the netdevsim because the
mutex locking fix overlapped a lot of driver reload reorganization.
The rest were (relatively) trivial in nature.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'v5.4-rc4' into docs-next
I need to pick up the independent changes made to
Documentation/core-api/memory-allocation.rst to be able to merge further
work without creating a total mess.
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Merge 4.19.81 into android-4.19
Changes in 4.19.81
nvme-pci: Fix a race in controller removal
scsi: ufs: skip shutdown if hba is not powered
scsi: megaraid: disable device when probe failed after enabled device
scsi: qla2xxx: Fix unbound sleep in fcport delete path.
ARM: OMAP2+: Fix missing reset done flag for am3 and am43
ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage()
ieee802154: ca8210: prevent memory leak
ARM: dts: am4372: Set memory bandwidth limit for DISPC
net: dsa: qca8k: Use up to 7 ports for all operations
MIPS: dts: ar9331: fix interrupt-controller size
xen/efi: Set nonblocking callbacks
nl80211: fix null pointer dereference
mac80211: fix txq null pointer dereference
netfilter: nft_connlimit: disable bh on garbage collection
net: dsa: rtl8366rb: add missing of_node_put after calling of_get_child_by_name
mips: Loongson: Fix the link time qualifier of 'serial_exit()'
net: hisilicon: Fix usage of uninitialized variable in function mdio_sc_cfg_reg_write()
lib: textsearch: fix escapes in example code
r8152: Set macpassthru in reset_resume callback
namespace: fix namespace.pl script to support relative paths
libata/ahci: Fix PCS quirk application
md/raid0: fix warning message for parameter default_layout
Revert "drm/radeon: Fix EEH during kexec"
ocfs2: fix panic due to ocfs2_wq is null
ipv4: fix race condition between route lookup and invalidation
ipv4: Return -ENETUNREACH if we can't create route but saddr is valid
net: avoid potential infinite loop in tc_ctl_action()
net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3
net: bcmgenet: Set phydev->dev_flags only for internal PHYs
net: i82596: fix dma_alloc_attr for sni_82596
net/ibmvnic: Fix EOI when running in XIVE mode.
net: ipv6: fix listify ip6_rcv_finish in case of forwarding
net: stmmac: disable/enable ptp_ref_clk in suspend/resume flow
sctp: change sctp_prot .no_autobind with true
memfd: Fix locking when tagging pins
USB: legousbtower: fix memleak on disconnect
ALSA: hda/realtek - Add support for ALC711
ALSA: hda/realtek - Enable headset mic on Asus MJ401TA
ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers
ALSA: hda - Force runtime PM on Nvidia HDMI codecs
usb: udc: lpc32xx: fix bad bit shift operation
USB: serial: ti_usb_3410_5052: fix port-close races
USB: ldusb: fix memleak on disconnect
USB: usblp: fix use-after-free on disconnect
USB: ldusb: fix read info leaks
MIPS: tlbex: Fix build_restore_pagemask KScratch restore
staging: wlan-ng: fix exit return when sme->key_idx >= NUM_WEPKEYS
scsi: zfcp: fix reaction on bit error threshold notification
scsi: sd: Ignore a failure to sync cache due to lack of authorization
scsi: core: save/restore command resid for error handling
scsi: core: try to get module before removing device
scsi: ch: Make it possible to open a ch device multiple times again
Input: da9063 - fix capability and drop KEY_SLEEP
Input: synaptics-rmi4 - avoid processing unknown IRQs
ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting
ACPI: CPPC: Set pcc_data[pcc_ss_id] to NULL in acpi_cppc_processor_exit()
cfg80211: wext: avoid copying malformed SSIDs
mac80211: Reject malformed SSID elements
drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50
drm/ttm: Restore ttm prefaulting
drm/amdgpu: Bail earlier when amdgpu.cik_/si_support is not set to 1
drivers/base/memory.c: don't access uninitialized memmaps in soft_offline_page_store()
fs/proc/page.c: don't access uninitialized memmaps in fs/proc/page.c
mmc: cqhci: Commit descriptors before setting the doorbell
mm/memory-failure.c: don't access uninitialized memmaps in memory_failure()
mm/slub: fix a deadlock in show_slab_objects()
mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic()
mm/memory-failure: poison read receives SIGKILL instead of SIGBUS if mmaped more than once
xtensa: drop EXPORT_SYMBOL for outs*/ins*
parisc: Fix vmap memory leak in ioremap()/iounmap()
EDAC/ghes: Fix Use after free in ghes_edac remove path
arm64: Enable workaround for Cavium TX2 erratum 219 when running SMT
CIFS: avoid using MID 0xFFFF
CIFS: Fix use after free of file info structures
perf/aux: Fix AUX output stopping
tracing: Fix race in perf_trace_buf initialization
dm cache: fix bugs when a GFP_NOWAIT allocation fails
x86/boot/64: Make level2_kernel_pgt pages invalid outside kernel area
x86/apic/x2apic: Fix a NULL pointer deref when handling a dying cpu
pinctrl: cherryview: restore Strago DMI workaround for all versions
pinctrl: armada-37xx: fix control of pins 32 and up
pinctrl: armada-37xx: swap polarity on LED group
btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group()
Btrfs: add missing extents release on file extent cluster relocation error
Btrfs: check for the full sync flag while holding the inode lock during fsync
btrfs: tracepoints: Fix bad entry members of qgroup events
memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown
xen/netback: fix error path of xenvif_connect_data()
PCI: PM: Fix pci_power_up()
blk-rq-qos: fix first node deletion of rq_qos_del()
RDMA/cxgb4: Do not dma memory off of the stack
Linux 4.19.81
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I96ed6b6f11919bc6dd4b560b160b8e7059ec574e
[ Upstream commit 82fdd12b95 ]
The namespace.pl script does not work properly if objtree is not set to
an absolute path. The do_nm function is run from within the find
function, which changes directories.
Because of this, appending objtree, $File::Find::dir, and $source, will
return a path which is not valid from the current directory.
This used to work when objtree was set to an absolute path when using
"make namespacecheck". It appears to have not worked when calling
./scripts/namespace.pl directly.
This behavior was changed in 7e1c04779e ("kbuild: Use relative path
for $(objtree)", 2014-05-14)
Rather than fixing the Makefile to set objtree to an absolute path, just
fix namespace.pl to work when srctree and objtree are relative. Also fix
the script to use an absolute path for these by default.
Use the File::Spec module for this purpose. It's been part of perl
5 since 5.005.
The curdir() function is used to get the current directory when the
objtree and srctree aren't set in the environment.
rel2abs() is used to convert possibly relative objtree and srctree
environment variables to absolute paths.
Finally, the catfile() function is used instead of string appending
paths together, since this is more robust when joining paths together.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
module namespaces are ripped out at the moment, so the 5.4-rc5 merge
didn't quite go "well" because of that. This should resolve those
issues.
Cc: Matthias Männich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I56eccc6e9bce6eaf805e84f34e67975284efb05a
* android-4.19: (2854 commits)
ANDROID: move up spin_unlock_bh() ahead of remove_proc_entry()
BACKPORT: arm64: tags: Preserve tags for addresses translated via TTBR1
UPSTREAM: arm64: memory: Implement __tag_set() as common function
UPSTREAM: arm64/mm: fix variable 'tag' set but not used
UPSTREAM: arm64: avoid clang warning about self-assignment
ANDROID: sdcardfs: evict dentries on fscrypt key removal
ANDROID: fscrypt: add key removal notifier chain
ANDROID: refactor build.config files to remove duplication
ANDROID: Move from clang r353983c to r365631c
ANDROID: gki_defconfig: remove PWRSEQ_EMMC and PWRSEQ_SIMPLE
ANDROID: unconditionally compile sig_ok in struct module
Linux 4.19.80
perf/hw_breakpoint: Fix arch_hw_breakpoint use-before-initialization
PCI: vmd: Fix config addressing when using bus offsets
x86/asm: Fix MWAITX C-state hint value
hwmon: Fix HWMON_P_MIN_ALARM mask
tracing: Get trace_array reference for available_tracers files
ftrace: Get a reference counter for the trace_array on filter files
tracing/hwlat: Don't ignore outer-loop duration when calculating max_latency
tracing/hwlat: Report total time spent in all NMIs during the sample
...
Conflicts:
drivers/clk/rockchip/clk-mmc-phase.c
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
drivers/regulator/core.c
drivers/tty/serial/8250/8250_port.c
drivers/usb/dwc3/core.h
drivers/usb/dwc3/gadget.c
drivers/usb/dwc3/gadget.h
Change-Id: I65599d770d6613caba14251b890fcfd1cfa0f100
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-10-27
The following pull-request contains BPF updates for your *net-next* tree.
We've added 52 non-merge commits during the last 11 day(s) which contain
a total of 65 files changed, 2604 insertions(+), 1100 deletions(-).
The main changes are:
1) Revolutionize BPF tracing by using in-kernel BTF to type check BPF
assembly code. The work here teaches BPF verifier to recognize
kfree_skb()'s first argument as 'struct sk_buff *' in tracepoints
such that verifier allows direct use of bpf_skb_event_output() helper
used in tc BPF et al (w/o probing memory access) that dumps skb data
into perf ring buffer. Also add direct loads to probe memory in order
to speed up/replace bpf_probe_read() calls, from Alexei Starovoitov.
2) Big batch of changes to improve libbpf and BPF kselftests. Besides
others: generalization of libbpf's CO-RE relocation support to now
also include field existence relocations, revamp the BPF kselftest
Makefile to add test runner concept allowing to exercise various
ways to build BPF programs, and teach bpf_object__open() and friends
to automatically derive BPF program type/expected attach type from
section names to ease their use, from Andrii Nakryiko.
3) Fix deadlock in stackmap's build-id lookup on rq_lock(), from Song Liu.
4) Allow to read BTF as raw data from bpftool. Most notable use case
is to dump /sys/kernel/btf/vmlinux through this, from Jiri Olsa.
5) Use bpf_redirect_map() helper in libbpf's AF_XDP helper prog which
manages to improve "rx_drop" performance by ~4%., from Björn Töpel.
6) Fix to restore the flow dissector after reattach BPF test and also
fix error handling in bpf_helper_defs.h generation, from Jakub Sitnicki.
7) Improve verifier's BTF ctx access for use outside of raw_tp, from
Martin KaFai Lau.
8) Improve documentation for AF_XDP with new sections and to reflect
latest features, from Magnus Karlsson.
9) Add back 'version' section parsing to libbpf for old kernels, from
John Fastabend.
10) Fix strncat bounds error in libbpf's libbpf_prog_type_by_name(),
from KP Singh.
11) Turn on -mattr=+alu32 in LLVM by default for BPF kselftests in order
to improve insn coverage for built BPF progs, from Yonghong Song.
12) Misc minor cleanups and fixes, from various others.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
- Revert __ksymtab_$namespace.$symbol naming scheme back to
__ksymtab_$symbol, as it was causing issues with depmod. Instead,
have modpost extract a symbol's namespace from __kstrtabns and
__ksymtab_strings.
- Fix `make nsdeps` for out of tree kernel builds (make O=...) caused by
unescaped '/'. Use a different sed delimiter to avoid this problem.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules fixes from Jessica Yu:
- Revert __ksymtab_$namespace.$symbol naming scheme back to
__ksymtab_$symbol, as it was causing issues with depmod.
Instead, have modpost extract a symbol's namespace from __kstrtabns
and __ksymtab_strings.
- Fix `make nsdeps` for out of tree kernel builds (make O=...) caused
by unescaped '/'.
Use a different sed delimiter to avoid this problem.
* tag 'modules-for-v5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
scripts/nsdeps: use alternative sed delimiter
symbol namespaces: revert to previous __ksymtab name scheme
modpost: make updating the symbol namespace explicit
modpost: delegate updating namespaces to separate function
This reverts commit e070355664, reversing
changes made to 8808cf8cbc.
Introducing symbol-namespaces into the kernel has caused issues with
respect to the ABI checker. Hence, revert the changes until a valid
fix is available. The revert was done based off of 5.4-rc1.
Change-Id: I529ced269661f457ce667a76eb383843002f0a7d
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
When doing an out of tree build with O=, the nsdeps script constructs
the absolute pathname of the module source file so that it can insert
MODULE_IMPORT_NS statements in the right place. However, ${srctree}
contains an unescaped path to the source tree, which, when used in a sed
substitution, makes sed complain:
++ sed 's/[^ ]* *//home/jeyu/jeyu-linux\/&/g'
sed: -e expression #1, char 12: unknown option to `s'
The sed substitution command 's' ends prematurely with the forward
slashes in the pathname, and sed errors out when it encounters the 'h',
which is an invalid sed substitution option. To avoid escaping forward
slashes ${srctree}, we can use '|' as an alternative delimiter for
sed instead to avoid this error.
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
Tested-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Don't generate a broken bpf_helper_defs.h header if the helper script needs
updating because it doesn't recognize a newly added type. Instead print an
error that explains why the build is failing, clean up the partially
generated header and stop.
v1->v2:
- Switched from temporary file to .DELETE_ON_ERROR.
Fixes: 456a513bb5 ("scripts/bpf: Emit an #error directive known types list needs updating")
Suggested-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191020112344.19395-1-jakub@cloudflare.com
- fix a bashism of setlocalversion
- do not use the too new --sort option of tar
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Merge tag 'kbuild-fixes-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild fixes from Masahiro Yamada:
- fix a bashism of setlocalversion
- do not use the too new --sort option of tar
* tag 'kbuild-fixes-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: substituting --sort in archive creation
scripts: setlocalversion: fix a bashism
kbuild: update comment about KBUILD_ALLDIRS
Currently lx-symbols assumes that module text is always located at
module->core_layout->base, but s390 uses the following layout:
+------+ <- module->core_layout->base
| GOT |
+------+ <- module->core_layout->base + module->arch->plt_offset
| PLT |
+------+ <- module->core_layout->base + module->arch->plt_offset +
| TEXT | module->arch->plt_size
+------+
Therefore, when trying to debug modules on s390, all the symbol
addresses are skewed by plt_offset + plt_size.
Fix by adding plt_offset + plt_size to module_addr in
load_module_symbols().
Link: http://lkml.kernel.org/r/20191017085917.81791-1-iii@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When CONFIG_PRINTK_CALLER is set, struct printk_log contains an
additional member caller_id. This affects the offset of the log text.
Account for this by using the type information from gdb to determine all
the offsets instead of using hardcoded values.
This fixes following error:
(gdb) lx-dmesg
Python Exception <class 'ValueError'> embedded null character:
Error occurred in Python command: embedded null character
The read_u* utility functions now take an offset argument to make them
easier to use.
Link: http://lkml.kernel.org/r/20191011142500.2339-1-joel.colledge@linbit.com
Signed-off-by: Joel Colledge <joel.colledge@linbit.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The introduction of Symbol Namespaces changed the naming schema of the
__ksymtab entries from __kysmtab__symbol to __ksymtab_NAMESPACE.symbol.
That caused some breakages in tools that depend on the name layout in
either the binaries(vmlinux,*.ko) or in System.map. E.g. kmod's depmod
would not be able to read System.map without a patch to support symbol
namespaces. A warning reported by depmod for namespaced symbols would
look like
depmod: WARNING: [...]/uas.ko needs unknown symbol usb_stor_adjust_quirks
In order to address this issue, revert to the original naming scheme and
rather read the __kstrtabns_<symbol> entries and their corresponding
values from __ksymtab_strings to update the namespace values for
symbols. After having read all symbols and handled them in
handle_modversions(), the symbols are created. In a second pass, read
the __kstrtabns_ entries and update the namespaces accordingly.
Fixes: 8651ec01da ("module: add support for symbol namespaces.")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Setting the symbol namespace of a symbol within sym_add_exported feels
displaced and lead to issues in the current implementation of symbol
namespaces. This patch makes updating the namespace an explicit call to
decouple it from adding a symbol to the export list.
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Let the function 'sym_update_namespace' take care of updating the
namespace for a symbol. While this currently only replaces one single
location where namespaces are updated, in a following patch, this
function will get more call sites.
The function signature is intentionally close to sym_update_crc and
taking the name by char* seems like unnecessary work as the symbol has
to be looked up again. In a later patch of this series, this concern
will be addressed.
This function ensures that symbol::namespace is either NULL or has a
valid non-empty value. Previously, the empty string was considered 'no
namespace' as well and this lead to confusion.
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
While it is useful for new drivers to use devm_platform_ioremap_resource,
this script is currently used to spam maintainers, often updating very
old drivers. The net benefit is the removal of 2 lines of code in the
driver but the review load for the maintainers is huge. As of now, more
that 560 patches have been sent, some of them obviously broken, as in:
https://lore.kernel.org/lkml/9bbcce19c777583815c92ce3c2ff2586@www.loen.fr/
Remove the script to reduce the spam.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the compiler report a clear error when bpf_helpers_doc.py needs
updating rather than rely on the fact that Clang fails to compile
English:
../../../lib/bpf/bpf_helper_defs.h:2707:1: error: unknown type name 'Unrecognized'
Unrecognized type 'struct bpf_inet_lookup', please add it to known types!
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191016085811.11700-1-jakub@cloudflare.com
Fix bashism reported by checkbashisms by using only one '=':
possible bashism in scripts/setlocalversion line 96 (should be 'b = a'):
if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
Fixes: 38b3439d84 ("setlocalversion: update mercurial tag parsing")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Mike Crowe <mcrowe@zipitwireless.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Alexei Starovoitov says:
====================
pull-request: bpf-next 2019-10-14
The following pull-request contains BPF updates for your *net-next* tree.
12 days of development and
85 files changed, 1889 insertions(+), 1020 deletions(-)
The main changes are:
1) auto-generation of bpf_helper_defs.h, from Andrii.
2) split of bpf_helpers.h into bpf_{helpers, helper_defs, endian, tracing}.h
and move into libbpf, from Andrii.
3) Track contents of read-only maps as scalars in the verifier, from Andrii.
4) small x86 JIT optimization, from Daniel.
5) cross compilation support, from Ivan.
6) bpf flow_dissector enhancements, from Jakub and Stanislav.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
- Removed locked down from tracefs itself and moved it to the trace
directory. Having the open functions there do the lockdown checks.
- Fixed a few races with opening an instance file and the instance being
deleted (Discovered during the locked down updates). Kept separate
from the clean up code such that they can be backported to stable
easier.
- Cleaned up and consolidated the checks done when opening a trace
file, as there were multiple checks that need to be done, and it
did not make sense having them done in each open instance.
- Fixed a regression in the record mcount code.
- Small hw_lat detector tracer fixes.
- A trace_pipe read fix due to not initializing trace_seq.
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Merge tag 'trace-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"A few tracing fixes:
- Remove lockdown from tracefs itself and moved it to the trace
directory. Have the open functions there do the lockdown checks.
- Fix a few races with opening an instance file and the instance
being deleted (Discovered during the lockdown updates). Kept
separate from the clean up code such that they can be backported to
stable easier.
- Clean up and consolidated the checks done when opening a trace
file, as there were multiple checks that need to be done, and it
did not make sense having them done in each open instance.
- Fix a regression in the record mcount code.
- Small hw_lat detector tracer fixes.
- A trace_pipe read fix due to not initializing trace_seq"
* tag 'trace-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Initialize iter->seq after zeroing in tracing_read_pipe()
tracing/hwlat: Don't ignore outer-loop duration when calculating max_latency
tracing/hwlat: Report total time spent in all NMIs during the sample
recordmcount: Fix nop_mcount() function
tracing: Do not create tracefs files if tracefs lockdown is in effect
tracing: Add locked_down checks to the open calls of files created for tracefs
tracing: Add tracing_check_open_get_tr()
tracing: Have trace events system open call tracing_open_generic_tr()
tracing: Get trace_array reference for available_tracers files
ftrace: Get a reference counter for the trace_array on filter files
tracefs: Revert ccbd54ff54 ("tracefs: Restrict tracefs when the kernel is locked down")
The removal of the longjmp code in recordmcount.c mistakenly made the return
of make_nop() being negative an exit of nop_mcount(). It should not exit the
routine, but instead just not process that part of the code. By exiting with
an error code, it would cause the update of recordmcount to fail some files
which would fail the build if ftrace function tracing was enabled.
Link: http://lkml.kernel.org/r/20191009110538.5909fec6@gandalf.local.home
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 3f1df12019 ("recordmcount: Rewrite error/success handling")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
DT bindings are moving to using a json-schema based schema format
instead of freeform text. Add a checkpatch.pl check to encourage using
the schema for new bindings. It's not yet a requirement, but is
progressively being required by some maintainers.
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Rob Herring <robh@kernel.org>
- Fix broken external module builds due to a modpost bug in read_dump(),
where the namespace was not being strdup'd and sym->namespace would be
set to bogus data.
- Various namespace-related kbuild fixes and cleanups thanks to
Masahiro Yamada.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull module fixes from Jessica Yu:
"Code cleanups and kbuild/namespace related fixups from Masahiro.
Most importantly, it fixes a namespace-related modpost issue for
external module builds
- Fix broken external module builds due to a modpost bug in
read_dump(), where the namespace was not being strdup'd and
sym->namespace would be set to bogus data.
- Various namespace-related kbuild fixes and cleanups thanks to
Masahiro Yamada"
* tag 'modules-for-v5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
doc: move namespaces.rst from kbuild/ to core-api/
nsdeps: make generated patches independent of locale
nsdeps: fix hashbang of scripts/nsdeps
kbuild: fix build error of 'make nsdeps' in clean tree
module: rename __kstrtab_ns_* to __kstrtabns_* to avoid symbol conflict
modpost: fix broken sym->namespace for external module builds
module: swap the order of symbol.namespace
scripts: add_namespace: Fix coccicheck failed
Add support for %pfw conversion specifier (with "f" and "P" modifiers) to
support printing full path of the node, including its name ("f") and only
the node's name ("P") in the printk family of functions. The two flags
have equivalent functionality to existing %pOF with the same two modifiers
("f" and "P") on OF based systems. The ability to do the same on ACPI
based systems is added by this patch.
On ACPI based systems the resulting strings look like
\_SB.PCI0.CIO2.port@1.endpoint@0
where the nodes are separated by a dot (".") and the first three are
ACPI device nodes and the latter two ACPI data nodes.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
%pS and %ps are now the preferred conversion specifiers to print function
names. The functionality is equivalent; remove the old, deprecated %pF
and %pf support.
Depends-on: commit 2d44d165e9 ("scsi: lpfc: Convert existing %pf users to %ps")
Depends-on: commit b295c3e39c ("tools lib traceevent: Convert remaining %p[fF] users to %p[sS]")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
scripts/nsdeps automatically generates a patch to add MODULE_IMPORT_NS
tags, and what is nicer, it sorts the lines alphabetically with the
'sort' command. However, the output from the 'sort' command depends on
locale.
For example, I got this:
$ { echo usbstorage; echo usb_storage; } | LANG=en_US.UTF-8 sort
usbstorage
usb_storage
$ { echo usbstorage; echo usb_storage; } | LANG=C sort
usb_storage
usbstorage
So, this means people might potentially send different patches.
This kind of issue was reported in the past, for example,
commit f55f2328bb ("kbuild: make sorting initramfs contents
independent of locale").
Adding 'LANG=C' is a conventional way of fixing when a deterministic
result is desirable.
I added 'LANG=C' very close to the 'sort' command since changing
locale affects the language of error messages etc. We should respect
users' choice as much as possible.
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
This script does not use bash-extension. I am guessing this hashbang
was copied from scripts/coccicheck, which really uses bash-extension.
/bin/sh is enough for this script.
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Currently, external module builds produce tons of false-positives:
WARNING: module <mod> uses symbol <sym> from namespace <ns>, but does not import it.
Here, the <ns> part shows a random string.
When you build external modules, the symbol info of vmlinux and
in-kernel modules are read from $(objtree)/Module.symvers, but
read_dump() is buggy in multiple ways:
[1] When the modpost is run for vmlinux and in-kernel modules,
sym_extract_namespace() allocates memory for the namespace. On the
other hand, read_dump() does not, then sym->namespace will point to
somewhere in the line buffer of get_next_line(). The data in the
buffer will be replaced soon, and sym->namespace will end up with
pointing to unrelated data. As a result, check_exports() will show
random strings in the warning messages.
[2] When there is no namespace, sym_extract_namespace() returns NULL.
On the other hand, read_dump() sets namespace to an empty string "".
(but, it will be later replaced with unrelated data due to bug [1].)
The check_exports() shows a warning unless exp->namespace is NULL,
so every symbol read from read_dump() emits the warning, which is
mostly false positive.
To address [1], sym_add_exported() calls strdup() for s->namespace.
The namespace from sym_extract_namespace() must be freed to avoid
memory leak.
For [2], I changed the if-conditional in check_exports().
This commit also fixes sym_add_exported() to set s->namespace correctly
when the symbol is preloaded.
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Currently, EXPORT_SYMBOL_NS(_GPL) constructs the kernel symbol as
follows:
__ksymtab_SYMBOL.NAMESPACE
The sym_extract_namespace() in modpost allocates memory for the part
SYMBOL.NAMESPACE when '.' is contained. One problem is that the pointer
returned by strdup() is lost because the symbol name will be copied to
malloc'ed memory by alloc_symbol(). No one will keep track of the
pointer of strdup'ed memory.
sym->namespace still points to the NAMESPACE part. So, you can free it
with complicated code like this:
free(sym->namespace - strlen(sym->name) - 1);
It complicates memory free.
To fix it elegantly, I swapped the order of the symbol and the
namespace as follows:
__ksymtab_NAMESPACE.SYMBOL
then, simplified sym_extract_namespace() so that it allocates memory
only for the NAMESPACE part.
I prefer this order because it is intuitive and also matches to major
languages. For example, NAMESPACE::NAME in C++, MODULE.NAME in Python.
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Now all scripts in scripts/coccinelle to be automatically called
by coccicheck. However new adding add_namespace.cocci does not
support report mode, which make coccicheck failed.
This add "virtual report" to make the coccicheck go ahead smoothly.
Fixes: eb8305aecb ("scripts: Coccinelle script for namespace dependencies.")
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Acked-by: Matthias Maennich <maennich@google.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Enhance scripts/bpf_helpers_doc.py to emit C header with BPF helper
definitions (to be included from libbpf's bpf_helpers.h).
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Merge 4.19.77 into android-4.19
Changes in 4.19.77
arcnet: provide a buffer big enough to actually receive packets
cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize
macsec: drop skb sk before calling gro_cells_receive
net/phy: fix DP83865 10 Mbps HDX loopback disable function
net: qrtr: Stop rx_worker before freeing node
net/sched: act_sample: don't push mac header on ip6gre ingress
net_sched: add max len check for TCA_KIND
nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs
openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC
ppp: Fix memory leak in ppp_write
sch_netem: fix a divide by zero in tabledist()
skge: fix checksum byte order
usbnet: ignore endpoints with invalid wMaxPacketSize
usbnet: sanity checking of packet sizes and device mtu
net: sched: fix possible crash in tcf_action_destroy()
tcp: better handle TCP_USER_TIMEOUT in SYN_SENT state
net/mlx5: Add device ID of upcoming BlueField-2
mISDN: enforce CAP_NET_RAW for raw sockets
appletalk: enforce CAP_NET_RAW for raw sockets
ax25: enforce CAP_NET_RAW for raw sockets
ieee802154: enforce CAP_NET_RAW for raw sockets
nfc: enforce CAP_NET_RAW for raw sockets
nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs
ALSA: hda: Flush interrupts on disabling
regulator: lm363x: Fix off-by-one n_voltages for lm3632 ldo_vpos/ldo_vneg
ASoC: tlv320aic31xx: suppress error message for EPROBE_DEFER
ASoC: sgtl5000: Fix of unmute outputs on probe
ASoC: sgtl5000: Fix charge pump source assignment
firmware: qcom_scm: Use proper types for dma mappings
dmaengine: bcm2835: Print error in case setting DMA mask fails
leds: leds-lp5562 allow firmware files up to the maximum length
media: dib0700: fix link error for dibx000_i2c_set_speed
media: mtk-cir: lower de-glitch counter for rc-mm protocol
media: exynos4-is: fix leaked of_node references
media: hdpvr: Add device num check and handling
media: i2c: ov5640: Check for devm_gpiod_get_optional() error
time/tick-broadcast: Fix tick_broadcast_offline() lockdep complaint
sched/fair: Fix imbalance due to CPU affinity
sched/core: Fix CPU controller for !RT_GROUP_SCHED
x86/apic: Make apic_pending_intr_clear() more robust
sched/deadline: Fix bandwidth accounting at all levels after offline migration
x86/reboot: Always use NMI fallback when shutdown via reboot vector IPI fails
x86/apic: Soft disable APIC before initializing it
ALSA: hda - Show the fatal CORB/RIRB error more clearly
ALSA: i2c: ak4xxx-adda: Fix a possible null pointer dereference in build_adc_controls()
EDAC/mc: Fix grain_bits calculation
media: iguanair: add sanity checks
base: soc: Export soc_device_register/unregister APIs
ALSA: usb-audio: Skip bSynchAddress endpoint check if it is invalid
ia64:unwind: fix double free for mod->arch.init_unw_table
EDAC/altera: Use the proper type for the IRQ status bits
ASoC: rsnd: don't call clk_get_rate() under atomic context
arm64/prefetch: fix a -Wtype-limits warning
md/raid1: end bio when the device faulty
md: don't call spare_active in md_reap_sync_thread if all member devices can't work
md: don't set In_sync if array is frozen
media: media/platform: fsl-viu.c: fix build for MICROBLAZE
ACPI / processor: don't print errors for processorIDs == 0xff
loop: Add LOOP_SET_DIRECT_IO to compat ioctl
EDAC, pnd2: Fix ioremap() size in dnv_rd_reg()
efi: cper: print AER info of PCIe fatal error
firmware: arm_scmi: Check if platform has released shmem before using
sched/fair: Use rq_lock/unlock in online_fair_sched_group
idle: Prevent late-arriving interrupts from disrupting offline
media: gspca: zero usb_buf on error
perf config: Honour $PERF_CONFIG env var to specify alternate .perfconfig
perf test vfs_getname: Disable ~/.perfconfig to get default output
media: mtk-mdp: fix reference count on old device tree
media: fdp1: Reduce FCP not found message level to debug
media: em28xx: modules workqueue not inited for 2nd device
media: rc: imon: Allow iMON RC protocol for ffdc 7e device
dmaengine: iop-adma: use correct printk format strings
perf record: Support aarch64 random socket_id assignment
media: vsp1: fix memory leak of dl on error return path
media: i2c: ov5645: Fix power sequence
media: omap3isp: Don't set streaming state on random subdevs
media: imx: mipi csi-2: Don't fail if initial state times-out
net: lpc-enet: fix printk format strings
m68k: Prevent some compiler warnings in Coldfire builds
ARM: dts: imx7d: cl-som-imx7: make ethernet work again
ARM: dts: imx7-colibri: disable HS400
media: radio/si470x: kill urb on error
media: hdpvr: add terminating 0 at end of string
ASoC: uniphier: Fix double reset assersion when transitioning to suspend state
tools headers: Fixup bitsperlong per arch includes
ASoC: sun4i-i2s: Don't use the oversample to calculate BCLK
led: triggers: Fix a memory leak bug
nbd: add missing config put
media: mceusb: fix (eliminate) TX IR signal length limit
media: dvb-frontends: use ida for pll number
posix-cpu-timers: Sanitize bogus WARNONS
media: dvb-core: fix a memory leak bug
libperf: Fix alignment trap with xyarray contents in 'perf stat'
EDAC/amd64: Recognize DRAM device type ECC capability
EDAC/amd64: Decode syndrome before translating address
PM / devfreq: passive: Use non-devm notifiers
PM / devfreq: exynos-bus: Correct clock enable sequence
media: cec-notifier: clear cec_adap in cec_notifier_unregister
media: saa7146: add cleanup in hexium_attach()
media: cpia2_usb: fix memory leaks
media: saa7134: fix terminology around saa7134_i2c_eeprom_md7134_gate()
perf trace beauty ioctl: Fix off-by-one error in cmd->string table
media: ov9650: add a sanity check
ASoC: es8316: fix headphone mixer volume table
ACPI / CPPC: do not require the _PSD method
sched/cpufreq: Align trace event behavior of fast switching
x86/apic/vector: Warn when vector space exhaustion breaks affinity
arm64: kpti: ensure patched kernel text is fetched from PoU
x86/mm/pti: Do not invoke PTI functions when PTI is disabled
ASoC: fsl_ssi: Fix clock control issue in master mode
x86/mm/pti: Handle unaligned address gracefully in pti_clone_pagetable()
nvmet: fix data units read and written counters in SMART log
nvme-multipath: fix ana log nsid lookup when nsid is not found
ALSA: firewire-motu: add support for MOTU 4pre
iommu/amd: Silence warnings under memory pressure
libata/ahci: Drop PCS quirk for Denverton and beyond
iommu/iova: Avoid false sharing on fq_timer_on
libtraceevent: Change users plugin directory
ARM: dts: exynos: Mark LDO10 as always-on on Peach Pit/Pi Chromebooks
ACPI: custom_method: fix memory leaks
ACPI / PCI: fix acpi_pci_irq_enable() memory leak
closures: fix a race on wakeup from closure_sync
hwmon: (acpi_power_meter) Change log level for 'unsafe software power cap'
md/raid1: fail run raid1 array when active disk less than one
dmaengine: ti: edma: Do not reset reserved paRAM slots
kprobes: Prohibit probing on BUG() and WARN() address
s390/crypto: xts-aes-s390 fix extra run-time crypto self tests finding
x86/cpu: Add Tiger Lake to Intel family
platform/x86: intel_pmc_core: Do not ioremap RAM
ASoC: dmaengine: Make the pcm->name equal to pcm->id if the name is not set
raid5: don't set STRIPE_HANDLE to stripe which is in batch list
mmc: core: Clarify sdio_irq_pending flag for MMC_CAP2_SDIO_IRQ_NOTHREAD
mmc: sdhci: Fix incorrect switch to HS mode
mmc: core: Add helper function to indicate if SDIO IRQs is enabled
mmc: dw_mmc: Re-store SDIO IRQs mask at system resume
raid5: don't increment read_errors on EILSEQ return
libertas: Add missing sentinel at end of if_usb.c fw_table
e1000e: add workaround for possible stalled packet
ALSA: hda - Drop unsol event handler for Intel HDMI codecs
drm/amd/powerplay/smu7: enforce minimal VBITimeout (v2)
media: ttusb-dec: Fix info-leak in ttusb_dec_send_command()
ALSA: hda/realtek - Blacklist PC beep for Lenovo ThinkCentre M73/93
iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems
btrfs: extent-tree: Make sure we only allocate extents from block groups with the same type
media: omap3isp: Set device on omap3isp subdevs
PM / devfreq: passive: fix compiler warning
iwlwifi: fw: don't send GEO_TX_POWER_LIMIT command to FW version 36
ALSA: firewire-tascam: handle error code when getting current source of clock
ALSA: firewire-tascam: check intermediate state of clock status and retry
scsi: scsi_dh_rdac: zero cdb in send_mode_select()
scsi: qla2xxx: Fix Relogin to prevent modifying scan_state flag
printk: Do not lose last line in kmsg buffer dump
IB/mlx5: Free mpi in mp_slave mode
IB/hfi1: Define variables as unsigned long to fix KASAN warning
randstruct: Check member structs in is_pure_ops_struct()
Revert "ceph: use ceph_evict_inode to cleanup inode's resource"
ceph: use ceph_evict_inode to cleanup inode's resource
ALSA: hda/realtek - PCI quirk for Medion E4254
blk-mq: add callback of .cleanup_rq
scsi: implement .cleanup_rq callback
powerpc/imc: Dont create debugfs files for cpu-less nodes
fuse: fix missing unlock_page in fuse_writepage()
parisc: Disable HP HSC-PCI Cards to prevent kernel crash
KVM: x86: always stop emulation on page fault
KVM: x86: set ctxt->have_exception in x86_decode_insn()
KVM: x86: Manually calculate reserved bits when loading PDPTRS
media: sn9c20x: Add MSI MS-1039 laptop to flip_dmi_table
media: don't drop front-end reference count for ->detach
binfmt_elf: Do not move brk for INTERP-less ET_EXEC
ASoC: Intel: NHLT: Fix debug print format
ASoC: Intel: Skylake: Use correct function to access iomem space
ASoC: Intel: Fix use of potentially uninitialized variable
ARM: samsung: Fix system restart on S3C6410
ARM: zynq: Use memcpy_toio instead of memcpy on smp bring-up
Revert "arm64: Remove unnecessary ISBs from set_{pte,pmd,pud}"
arm64: tlb: Ensure we execute an ISB following walk cache invalidation
arm64: dts: rockchip: limit clock rate of MMC controllers for RK3328
alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP
regulator: Defer init completion for a while after late_initcall
efifb: BGRT: Improve efifb_bgrt_sanity_check
gfs2: clear buf_in_tr when ending a transaction in sweep_bh_for_rgrps
memcg, oom: don't require __GFP_FS when invoking memcg OOM killer
memcg, kmem: do not fail __GFP_NOFAIL charges
i40e: check __I40E_VF_DISABLE bit in i40e_sync_filters_subtask
block: fix null pointer dereference in blk_mq_rq_timed_out()
smb3: allow disabling requesting leases
ovl: Fix dereferencing possible ERR_PTR()
ovl: filter of trusted xattr results in audit
btrfs: fix allocation of free space cache v1 bitmap pages
Btrfs: fix use-after-free when using the tree modification log
btrfs: Relinquish CPUs in btrfs_compare_trees
btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space
btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls
Btrfs: fix race setting up and completing qgroup rescan workers
md/raid6: Set R5_ReadError when there is read failure on parity disk
md: don't report active array_state until after revalidate_disk() completes.
md: only call set_in_sync() when it is expected to succeed.
cfg80211: Purge frame registrations on iftype change
/dev/mem: Bail out upon SIGKILL.
ext4: fix warning inside ext4_convert_unwritten_extents_endio
ext4: fix punch hole for inline_data file systems
quota: fix wrong condition in is_quota_modification()
hwrng: core - don't wait on add_early_randomness()
i2c: riic: Clear NACK in tend isr
CIFS: fix max ea value size
CIFS: Fix oplock handling for SMB 2.1+ protocols
md/raid0: avoid RAID0 data corruption due to layout confusion.
fuse: fix deadlock with aio poll and fuse_iqueue::waitq.lock
mm/compaction.c: clear total_{migrate,free}_scanned before scanning a new zone
drm/amd/display: Restore backlight brightness after system resume
Linux 4.19.77
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2c74f09f497a4b45b244a7dd263c5116533dfccb
commit 60f2c82ed2 upstream.
While no uses in the kernel triggered this case, it was possible to have
a false negative where a struct contains other structs which contain only
function pointers because of unreachable code in is_pure_ops_struct().
Signed-off-by: Joonwon Kang <kjw1627@gmail.com>
Link: https://lore.kernel.org/r/20190727155841.GA13586@host
Fixes: 313dd1b629 ("gcc-plugins: Add the randstruct plugin")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Geert Uytterhoeven reports a strange side-effect of commit 858805b336
("kbuild: add $(BASH) to run scripts with bash-extension"), which
inserts the contents of a localversion file in the build directory twice.
[Steps to Reproduce]
$ echo bar > localversion
$ mkdir build
$ cd build/
$ echo foo > localversion
$ make -s -f ../Makefile defconfig include/config/kernel.release
$ cat include/config/kernel.release
5.4.0-rc1foofoobar
This comes down to the behavior change of local variables.
The 'man sh' on my Ubuntu machine, where sh is an alias to dash,
explains as follows:
When a variable is made local, it inherits the initial value and
exported and readonly flags from the variable with the same name
in the surrounding scope, if there is one. Otherwise, the variable
is initially unset.
[Test Code]
foo ()
{
local res
echo "res: $res"
}
res=1
foo
[Result]
$ sh test.sh
res: 1
$ bash test.sh
res:
So, scripts/setlocalversion correctly works only for bash in spite of
its hashbang being #!/bin/sh. Nobody had noticed it before because
CONFIG_SHELL was previously set to bash almost all the time.
Now that CONFIG_SHELL is set to sh, we must write portable and correct
code. I gave the Fixes tag to the commit that uncovered the issue.
Clear the variable 'res' in collect_files() to make it work for sh
(and it also works on distributions where sh is an alias to bash).
Fixes: 858805b336 ("kbuild: add $(BASH) to run scripts with bash-extension")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
The namespace.pl script does not work properly if objtree is not set to
an absolute path. The do_nm function is run from within the find
function, which changes directories.
Because of this, appending objtree, $File::Find::dir, and $source, will
return a path which is not valid from the current directory.
This used to work when objtree was set to an absolute path when using
"make namespacecheck". It appears to have not worked when calling
./scripts/namespace.pl directly.
This behavior was changed in 7e1c04779e ("kbuild: Use relative path
for $(objtree)", 2014-05-14)
Rather than fixing the Makefile to set objtree to an absolute path, just
fix namespace.pl to work when srctree and objtree are relative. Also fix
the script to use an absolute path for these by default.
Use the File::Spec module for this purpose. It's been part of perl
5 since 5.005.
The curdir() function is used to get the current directory when the
objtree and srctree aren't set in the environment.
rel2abs() is used to convert possibly relative objtree and srctree
environment variables to absolute paths.
Finally, the catfile() function is used instead of string appending
paths together, since this is more robust when joining paths together.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The latest debian version "bullseye/sid" has changed the path of the file
"notoserifcjk-regular.ttc", with the previous change and this change we
keep the backward compatibility and add the latest debian version
Signed-off-by: Jeremy MAURO <j.mauro@criteo.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The current implementation take a simple file as first argument, this
change allows to take a list as a first argument.
Some file could have a different path according distribution version
Signed-off-by: Jeremy MAURO <j.mauro@criteo.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
To make the 5.4-rc1 merge easier, merge at a prerelease point in time
before the final release happens.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: If613d657fd0abf9910c5bf3435a745f01b89765e
Subroutine dump_struct uses type attributes to check if the struct
syntax is valid. Then, it removes all attributes before using it for
output. `____cacheline_aligned_in_smp` is an attribute that is
not included in both steps. Add it, since it is used by kernel structs.
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The current regular expression for strip attributes of structs (and
for nested ones as well) also removes all whitespaces that may
surround the attribute. After that, the code will split structs and
iterate for each symbol separated by comma at the end of struct
definition (e.g. "} alias1, alias2;"). However, if the nested struct
does not have any alias and has an attribute, it will result in a
empty string at the closing bracket (e.g "};"). This will make the
split return nothing and $newmember will keep uninitialized. Fix
that, by ensuring that the attribute substitution will leave at least
one whitespace.
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add usage message on how to exit the virtualenv after documentation
work is done.
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
While sphinx 1.7 and later supports "-jauto" for parallelism, this
effectively ignores the "-j" flag used in the "make" invocation, which
may cause confusion for build systems. Instead, extract the available
parallelism from "make"'s job server (since it is not exposed in any
special variables) and use that for the "sphinx-build" run. Now things
work correctly for builds where -j is specified at the top-level:
make -j16 htmldocs
If -j is not specified, continue to fallback to "-jauto" if available.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Johannes Berg reports lots of modpost warnings on ARCH=um builds:
WARNING: "rename" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "lseek" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "ftruncate64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "getuid" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "lseek64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "unlink" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "pwrite64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "close" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "opendir" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "pread64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "syscall" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "readdir" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "readdir64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "futimes" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__lxstat" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "write" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "closedir" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__xstat" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "fsync" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__lxstat64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__fxstat64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "telldir" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "printf" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "readlink" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__sprintf_chk" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "link" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "rmdir" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "fdatasync" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "truncate" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "statfs" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__errno_location" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__xmknod" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "open64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "truncate64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "open" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "read" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "chown" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "chmod" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "utime" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "fchmod" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "seekdir" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "ioctl" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "dup2" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "statfs64" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "utimes" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "mkdir" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "fchown" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__guard" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "symlink" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "access" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "__stack_smash_handler" [vmlinux] is a static EXPORT_SYMBOL
When you run "make", the modpost is run twice; before linking vmlinux,
and before building modules. All the warnings above are from the second
modpost.
The offending symbols are defined not in vmlinux, but in the C library.
The first modpost is run against the relocatable vmlinux.o, and those
warnings are nicely suppressed because the SH_UNDEF entries from the
symbol table clear the ->is_static flag.
The second modpost is run against the executable vmlinux (+ modules),
where those symbols have been resolved, but the definitions do not
exist.
This commit fixes it in a straightforward way; suppress the static
EXPORT_SYMBOL warnings from "vmlinux".
Without this commit, we see valid warnings twice anyway. For example,
ARCH=arm64 defconfig shows the following warning twice:
WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL
So, it is reasonable to suppress the second one.
Fixes: 15bfc2348d ("modpost: check for static EXPORT_SYMBOL* functions")
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Johannes Berg <johannes@sipsolutions.net>
Tested-by: Denis Efremov <efremov@linux.com>
Commit 40df759e2b ("kbuild: Fix build with binutils <= 2.19")
introduced ar-option and KBUILD_ARFLAGS to deal with old binutils.
According to Documentation/process/changes.rst, the current minimal
supported version of binutils is 2.21 so you can assume the 'D' option
is always supported. Not only GNU ar but also llvm-ar supports it.
With the 'D' option hard-coded, there is no more user of ar-option
or KBUILD_ARFLAGS.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Pull integrity updates from Mimi Zohar:
"The major feature in this time is IMA support for measuring and
appraising appended file signatures. In addition are a couple of bug
fixes and code cleanup to use struct_size().
In addition to the PE/COFF and IMA xattr signatures, the kexec kernel
image may be signed with an appended signature, using the same
scripts/sign-file tool that is used to sign kernel modules.
Similarly, the initramfs may contain an appended signature.
This contained a lot of refactoring of the existing appended signature
verification code, so that IMA could retain the existing framework of
calculating the file hash once, storing it in the IMA measurement list
and extending the TPM, verifying the file's integrity based on a file
hash or signature (eg. xattrs), and adding an audit record containing
the file hash, all based on policy. (The IMA support for appended
signatures patch set was posted and reviewed 11 times.)
The support for appended signature paves the way for adding other
signature verification methods, such as fs-verity, based on a single
system-wide policy. The file hash used for verifying the signature and
the signature, itself, can be included in the IMA measurement list"
* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
ima: ima_api: Use struct_size() in kzalloc()
ima: use struct_size() in kzalloc()
sefltest/ima: support appended signatures (modsig)
ima: Fix use after free in ima_read_modsig()
MODSIGN: make new include file self contained
ima: fix freeing ongoing ahash_request
ima: always return negative code for error
ima: Store the measurement again when appraising a modsig
ima: Define ima-modsig template
ima: Collect modsig
ima: Implement support for module-style appended signatures
ima: Factor xattr_verify() out of ima_appraise_measurement()
ima: Add modsig appraise_type option for module-style appended signatures
integrity: Select CONFIG_KEYS instead of depending on it
PKCS#7: Introduce pkcs7_get_digest()
PKCS#7: Refactor verify_pkcs7_signature()
MODSIGN: Export module signature definitions
ima: initialize the "template" field with the default template
IS_ERR(), IS_ERR_OR_NULL(), IS_ERR_VALUE() and WARN*() already contain
unlikely() optimization internally. Thus, there is no point in calling
these functions and defines under likely()/unlikely().
This check is based on the coccinelle rule developed by Enrico Weigelt
https://lore.kernel.org/lkml/1559767582-11081-1-git-send-email-info@metux.net/
Link: http://lkml.kernel.org/r/20190829165025.15750-1-efremov@linux.com
Signed-off-by: Denis Efremov <efremov@linux.com>
Cc: Joe Perches <joe@perches.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Anton Altaparmakov <anton@tuxera.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Boris Pismenny <borisp@mellanox.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Denis Efremov <efremov@linux.com>
Cc: Dennis Dalessandro <dennis.dalessandro@intel.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Sean Paul <sean@poorly.run>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some systems (like Chrome OS) may use "split debug" for kernel modules.
That means that the debug symbols are in a different file than the main
elf file. Let's handle that by also searching for debug symbols that end
in ".ko.debug".
This is a packaging topic. You can take a normal elf file and split the
debug out of it using objcopy. Try "man objcopy" and then take a look at
the "--only-keep-debug" option. It'll give you a whole recipe for doing
splitdebug. The suffix used for the debug symbols is arbitrary. If
people have other another suffix besides ".ko.debug" then we could
presumably support that too...
For portage (which is the packaging system used by Chrome OS) split debug
is supported by default (and the suffix is .ko.debug). ...and so in
Chrome OS we always get the installed elf files stripped and then the
symbols stashed away.
At the moment we don't actually use the normal portage magic to do this
for the kernel though since it affects our ability to get good stack dumps
in the kernel. We instead pass a script as "strip" [1].
[1] https://chromium.googlesource.com/chromiumos/overlays/chromiumos-overlay/+/refs/heads/master/eclass/cros-kernel/strip_splitdebug
Link: http://lkml.kernel.org/r/20190730234052.148744-1-dianders@chromium.org
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
git output parsing depends on the language being en_US english.
Make the backtick execution of all `git <foo>` commands set the
LANGUAGE of the process to en_US.utf8 before executing the actual
command using `export LANGUAGE=en_US.utf8; git <foo>`.
Because the command is executed in a child process, the parent
LANGUAGE is unchanged.
Link: http://lkml.kernel.org/r/bb9f29988f3258281956680ff39c3e19e37dc0b8.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Tested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git dropped the period from its "ambiguous SHA1" error message in commit
0c99171ad2 ("get_short_sha1: mark ambiguity error for translation"), circa
2016. Drop the period from checkpatch's associated query so as to match
both the old and new error messages.
Link: http://lkml.kernel.org/r/20190830163103.15914-1-sean.j.christopherson@intel.com
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
checkpatch allows consecutive open braces, so it should also allow
consecutive close braces.
Link: http://lkml.kernel.org/r/bfdb49ae2c3fa7b52fa168769e38b48f959880e2.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add another test for __attribute__((section("foo"))) uses that should be
__section(foo)
Link: http://lkml.kernel.org/r/2f374c3c27054b7f978115270d587c624d9962fc.camel@perches.com
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The arguments of sizeof are not evaluated so arguments are safe to re-use
in that context. Excluding sizeof subexpressions means macros like
ARRAY_SIZE can pass checkpatch.
Link: http://lkml.kernel.org/r/20190806070833.24423-1-brendan.jackman@bluwireless.co.uk
Signed-off-by: Brendan Jackman <brendan.jackman@bluwireless.co.uk>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It can happen that a commit message refers to an invalid commit id,
because the referenced hash changed following a rebase, or simply by
mistake. Add a check in checkpatch.pl which checks that an hash
referenced by a Fixes tag, or just cited in the commit message, is a valid
commit id.
$ scripts/checkpatch.pl <<'EOF'
Subject: [PATCH] test commit
Sample test commit to test checkpatch.pl
Commit 1da177e4c3 ("Linux-2.6.12-rc2") really exists,
commit 0bba044c4c ("tree") is valid but not a commit,
while commit b4cc0b1c0cca ("unknown") is invalid.
Fixes: f0cacc14cade ("unknown")
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
EOF
WARNING: Unknown commit id '0bba044c4ce7', maybe rebased or not pulled?
#8:
commit 0bba044c4c ("tree") is valid but not a commit,
WARNING: Unknown commit id 'b4cc0b1c0cca', maybe rebased or not pulled?
#9:
while commit b4cc0b1c0cca ("unknown") is invalid.
WARNING: Unknown commit id 'f0cacc14cade', maybe rebased or not pulled?
#11:
Fixes: f0cacc14cade ("unknown")
total: 0 errors, 3 warnings, 4 lines checked
Link: http://lkml.kernel.org/r/20190711001640.13398-1-mcroce@redhat.com
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(Upstream commit 7771bdbbfd).
Use after scope bugs detector seems to be almost entirely useless for
the linux kernel. It exists over two years, but I've seen only one
valid bug so far [1]. And the bug was fixed before it has been
reported. There were some other use-after-scope reports, but they were
false-positives due to different reasons like incompatibility with
structleak plugin.
This feature significantly increases stack usage, especially with GCC <
9 version, and causes a 32K stack overflow. It probably adds
performance penalty too.
Given all that, let's remove use-after-scope detector entirely.
While preparing this patch I've noticed that we mistakenly enable
use-after-scope detection for clang compiler regardless of
CONFIG_KASAN_EXTRA setting. This is also fixed now.
[1] http://lkml.kernel.org/r/<20171129052106.rhgbjhhis53hkgfn@wfg-t540p.sh.intel.com>
Link: http://lkml.kernel.org/r/20190111185842.13978-1-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Will Deacon <will.deacon@arm.com> [arm64]
Cc: Qian Cai <cai@lca.pw>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: I00d869a5e287e3e198950b78ad17bd6ff6a51595
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Bug: 128674696
(Upstream commit 6baec880d7).
Building an arm64 allmodconfig kernel with clang results in over 140
warnings about overly large stack frames, the worst ones being:
drivers/gpu/drm/panel/panel-sitronix-st7789v.c:196:12: error: stack frame size of 20224 bytes in function 'st7789v_prepare'
drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c:196:12: error: stack frame size of 13120 bytes in function 'td028ttec1_panel_enable'
drivers/usb/host/max3421-hcd.c:1395:1: error: stack frame size of 10048 bytes in function 'max3421_spi_thread'
drivers/net/wan/slic_ds26522.c:209:12: error: stack frame size of 9664 bytes in function 'slic_ds26522_probe'
drivers/crypto/ccp/ccp-ops.c:2434:5: error: stack frame size of 8832 bytes in function 'ccp_run_cmd'
drivers/media/dvb-frontends/stv0367.c:1005:12: error: stack frame size of 7840 bytes in function 'stv0367ter_algo'
None of these happen with gcc today, and almost all of these are the
result of a single known issue in llvm. Hopefully it will eventually
get fixed with the clang-9 release.
In the meantime, the best idea I have is to turn off asan-stack for
clang-8 and earlier, so we can produce a kernel that is safe to run.
I have posted three patches that address the frame overflow warnings
that are not addressed by turning off asan-stack, so in combination with
this change, we get much closer to a clean allmodconfig build, which in
turn is necessary to do meaningful build regression testing.
It is still possible to turn on the CONFIG_ASAN_STACK option on all
versions of clang, and it's always enabled for gcc, but when
CONFIG_COMPILE_TEST is set, the option remains invisible, so
allmodconfig and randconfig builds (which are normally done with a
forced CONFIG_COMPILE_TEST) will still result in a mostly clean build.
Link: http://lkml.kernel.org/r/20190222222950.3997333-1-arnd@arndb.de
Link: https://bugs.llvm.org/show_bug.cgi?id=38809
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Qian Cai <cai@lca.pw>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Kostya Serebryany <kcc@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: Ieefb7b14a9a4c36054e0a6d39f018d39ba78313d
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Bug: 128674696
The conflict during backport is caused by the
include/linux/compiler_attributes.h file not being present.
(Upstream commit 2bd926b439).
This commit splits the current CONFIG_KASAN config option into two:
1. CONFIG_KASAN_GENERIC, that enables the generic KASAN mode (the one
that exists now);
2. CONFIG_KASAN_SW_TAGS, that enables the software tag-based KASAN mode.
The name CONFIG_KASAN_SW_TAGS is chosen as in the future we will have
another hardware tag-based KASAN mode, that will rely on hardware memory
tagging support in arm64.
With CONFIG_KASAN_SW_TAGS enabled, compiler options are changed to
instrument kernel files with -fsantize=kernel-hwaddress (except the ones
for which KASAN_SANITIZE := n is set).
Both CONFIG_KASAN_GENERIC and CONFIG_KASAN_SW_TAGS support both
CONFIG_KASAN_INLINE and CONFIG_KASAN_OUTLINE instrumentation modes.
This commit also adds empty placeholder (for now) implementation of
tag-based KASAN specific hooks inserted by the compiler and adjusts
common hooks implementation.
While this commit adds the CONFIG_KASAN_SW_TAGS config option, this option
is not selectable, as it depends on HAVE_ARCH_KASAN_SW_TAGS, which we will
enable once all the infrastracture code has been added.
Link: http://lkml.kernel.org/r/b2550106eb8a68b10fefbabce820910b115aa853.1544099024.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: Id95c0c0b6857c6b30f2bea4597aea6c90273ef89
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Bug: 128674696
To make the 5.4-rc1 merge easier, merge at a prerelease point in time
before the final release happens.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I29b683c837ed1a3324644dbf9bf863f30740cd0b
Summary of modules changes for the 5.4 merge window:
- Introduce exported symbol namespaces.
This new feature allows subsystem maintainers to partition and
categorize their exported symbols into explicit namespaces. Module
authors are now required to import the namespaces they need.
Some of the main motivations of this feature include: allowing kernel
developers to better manage the export surface, allow subsystem
maintainers to explicitly state that usage of some exported symbols
should only be limited to certain users (think: inter-module or
inter-driver symbols, debugging symbols, etc), as well as more easily
limiting the availability of namespaced symbols to other parts of the
kernel. With the module import requirement, it is also easier to spot
the misuse of exported symbols during patch review. Two new macros are
introduced: EXPORT_SYMBOL_NS() and EXPORT_SYMBOL_NS_GPL(). The API is
thoroughly documented in Documentation/kbuild/namespaces.rst.
- Some small code and kbuild cleanups here and there.
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Merge tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules updates from Jessica Yu:
"The main bulk of this pull request introduces a new exported symbol
namespaces feature. The number of exported symbols is increasingly
growing with each release (we're at about 31k exports as of 5.3-rc7)
and we currently have no way of visualizing how these symbols are
"clustered" or making sense of this huge export surface.
Namespacing exported symbols allows kernel developers to more
explicitly partition and categorize exported symbols, as well as more
easily limiting the availability of namespaced symbols to other parts
of the kernel. For starters, we have introduced the USB_STORAGE
namespace to demonstrate the API's usage. I have briefly summarized
the feature and its main motivations in the tag below.
Summary:
- Introduce exported symbol namespaces.
This new feature allows subsystem maintainers to partition and
categorize their exported symbols into explicit namespaces. Module
authors are now required to import the namespaces they need.
Some of the main motivations of this feature include: allowing
kernel developers to better manage the export surface, allow
subsystem maintainers to explicitly state that usage of some
exported symbols should only be limited to certain users (think:
inter-module or inter-driver symbols, debugging symbols, etc), as
well as more easily limiting the availability of namespaced symbols
to other parts of the kernel.
With the module import requirement, it is also easier to spot the
misuse of exported symbols during patch review.
Two new macros are introduced: EXPORT_SYMBOL_NS() and
EXPORT_SYMBOL_NS_GPL(). The API is thoroughly documented in
Documentation/kbuild/namespaces.rst.
- Some small code and kbuild cleanups here and there"
* tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: Remove leftover '#undef' from export header
module: remove unneeded casts in cmp_name()
module: move CONFIG_UNUSED_SYMBOLS to the sub-menu of MODULES
module: remove redundant 'depends on MODULES'
module: Fix link failure due to invalid relocation on namespace offset
usb-storage: export symbols in USB_STORAGE namespace
usb-storage: remove single-use define for debugging
docs: Add documentation for Symbol Namespaces
scripts: Coccinelle script for namespace dependencies.
modpost: add support for generating namespace dependencies
export: allow definition default namespaces in Makefiles or sources
module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
modpost: add support for symbol namespaces
module: add support for symbol namespaces.
export: explicitly align struct kernel_symbol
module: support reading multiple values per modinfo tag
- Fix auto-selection bug in is_pure_ops_struct (Joonwon Kang)
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Merge tag 'gcc-plugins-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc-plugins fix from Kees Cook:
"Fix a potential problem in randomize_layout structure auto-selection
(that was not triggered by any existing kernel structures)"
* tag 'gcc-plugins-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
randstruct: Check member structs in is_pure_ops_struct()
This merges Linus's tree as of commit b41dae061b ("Merge tag
'xfs-5.4-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux")
into android-mainline.
This "early" merge makes it easier to test and handle merge conflicts
instead of having to wait until the "end" of the merge window and handle
all 10000+ commits at once.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6bebf55e5e2353f814e3c87f5033607b1ae5d812
- Addition of multiprobes to kprobe and uprobe events
Allows for more than one probe attached to the same location
- Addition of adding immediates to probe parameters
- Clean up of the recordmcount.c code. This brings us closer
to merging recordmcount into objtool, and reuse code.
- Other small clean ups
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Merge tag 'trace-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Addition of multiprobes to kprobe and uprobe events (allows for more
than one probe attached to the same location)
- Addition of adding immediates to probe parameters
- Clean up of the recordmcount.c code. This brings us closer to merging
recordmcount into objtool, and reuse code.
- Other small clean ups
* tag 'trace-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits)
selftests/ftrace: Update kprobe event error testcase
tracing/probe: Reject exactly same probe event
tracing/probe: Fix to allow user to enable events on unloaded modules
selftests/ftrace: Select an existing function in kprobe_eventname test
tracing/kprobe: Fix NULL pointer access in trace_porbe_unlink()
tracing: Make sure variable reference alias has correct var_ref_idx
tracing: Be more clever when dumping hex in __print_hex()
ftrace: Simplify ftrace hash lookup code in clear_func_from_hash()
tracing: Add "gfp_t" support in synthetic_events
tracing: Rename tracing_reset() to tracing_reset_cpu()
tracing: Document the stack trace algorithm in the comments
tracing/arm64: Have max stack tracer handle the case of return address after data
recordmcount: Clarify what cleanup() does
recordmcount: Remove redundant cleanup() calls
recordmcount: Kernel style formatting
recordmcount: Kernel style function signature formatting
recordmcount: Rewrite error/success handling
selftests/ftrace: Add syntax error test for multiprobe
selftests/ftrace: Add syntax error test for immediates
selftests/ftrace: Add a testcase for kprobe multiprobe event
...
- add modpost warn exported symbols marked as 'static' because 'static'
and EXPORT_SYMBOL is an odd combination
- break the build early if gold linker is used
- optimize the Bison rule to produce .c and .h files by a single
pattern rule
- handle PREEMPT_RT in the module vermagic and UTS_VERSION
- warn CONFIG options leaked to the user-space except existing ones
- make single targets work properly
- rebuild modules when module linker scripts are updated
- split the module final link stage into scripts/Makefile.modfinal
- fix the missed error code in merge_config.sh
- improve the error message displayed on the attempt of the O= build
in unclean source tree
- remove 'clean-dirs' syntax
- disable -Wimplicit-fallthrough warning for Clang
- add CONFIG_CC_OPTIMIZE_FOR_SIZE_O3 for ARC
- remove ARCH_{CPP,A,C}FLAGS variables
- add $(BASH) to run bash scripts
- change *CFLAGS_<basetarget>.o to take the relative path to $(obj)
instead of the basename
- stop suppressing Clang's -Wunused-function warnings when W=1
- fix linux/export.h to avoid genksyms calculating CRC of trimmed
exported symbols
- misc cleanups
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Merge tag 'kbuild-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- add modpost warn exported symbols marked as 'static' because 'static'
and EXPORT_SYMBOL is an odd combination
- break the build early if gold linker is used
- optimize the Bison rule to produce .c and .h files by a single
pattern rule
- handle PREEMPT_RT in the module vermagic and UTS_VERSION
- warn CONFIG options leaked to the user-space except existing ones
- make single targets work properly
- rebuild modules when module linker scripts are updated
- split the module final link stage into scripts/Makefile.modfinal
- fix the missed error code in merge_config.sh
- improve the error message displayed on the attempt of the O= build in
unclean source tree
- remove 'clean-dirs' syntax
- disable -Wimplicit-fallthrough warning for Clang
- add CONFIG_CC_OPTIMIZE_FOR_SIZE_O3 for ARC
- remove ARCH_{CPP,A,C}FLAGS variables
- add $(BASH) to run bash scripts
- change *CFLAGS_<basetarget>.o to take the relative path to $(obj)
instead of the basename
- stop suppressing Clang's -Wunused-function warnings when W=1
- fix linux/export.h to avoid genksyms calculating CRC of trimmed
exported symbols
- misc cleanups
* tag 'kbuild-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (63 commits)
genksyms: convert to SPDX License Identifier for lex.l and parse.y
modpost: use __section in the output to *.mod.c
modpost: use MODULE_INFO() for __module_depends
export.h, genksyms: do not make genksyms calculate CRC of trimmed symbols
export.h: remove defined(__KERNEL__), which is no longer needed
kbuild: allow Clang to find unused static inline functions for W=1 build
kbuild: rename KBUILD_ENABLE_EXTRA_GCC_CHECKS to KBUILD_EXTRA_WARN
kbuild: refactor scripts/Makefile.extrawarn
merge_config.sh: ignore unwanted grep errors
kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)
modpost: add NOFAIL to strndup
modpost: add guid_t type definition
kbuild: add $(BASH) to run scripts with bash-extension
kbuild: remove ARCH_{CPP,A,C}FLAGS
kbuild,arc: add CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 for ARC
kbuild: Do not enable -Wimplicit-fallthrough for clang for now
kbuild: clean up subdir-ymn calculation in Makefile.clean
kbuild: remove unneeded '+' marker from cmd_clean
kbuild: remove clean-dirs syntax
kbuild: check clean srctree even earlier
...
Pull networking updates from David Miller:
1) Support IPV6 RA Captive Portal Identifier, from Maciej Żenczykowski.
2) Use bio_vec in the networking instead of custom skb_frag_t, from
Matthew Wilcox.
3) Make use of xmit_more in r8169 driver, from Heiner Kallweit.
4) Add devmap_hash to xdp, from Toke Høiland-Jørgensen.
5) Support all variants of 5750X bnxt_en chips, from Michael Chan.
6) More RTNL avoidance work in the core and mlx5 driver, from Vlad
Buslov.
7) Add TCP syn cookies bpf helper, from Petar Penkov.
8) Add 'nettest' to selftests and use it, from David Ahern.
9) Add extack support to drop_monitor, add packet alert mode and
support for HW drops, from Ido Schimmel.
10) Add VLAN offload to stmmac, from Jose Abreu.
11) Lots of devm_platform_ioremap_resource() conversions, from
YueHaibing.
12) Add IONIC driver, from Shannon Nelson.
13) Several kTLS cleanups, from Jakub Kicinski.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1930 commits)
mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer
mlxsw: spectrum: Register CPU port with devlink
mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
net: ena: fix incorrect update of intr_delay_resolution
net: ena: fix retrieval of nonadaptive interrupt moderation intervals
net: ena: fix update of interrupt moderation register
net: ena: remove all old adaptive rx interrupt moderation code from ena_com
net: ena: remove ena_restore_ethtool_params() and relevant fields
net: ena: remove old adaptive interrupt moderation code from ena_netdev
net: ena: remove code duplication in ena_com_update_nonadaptive_moderation_interval _*()
net: ena: enable the interrupt_moderation in driver_supported_features
net: ena: reimplement set/get_coalesce()
net: ena: switch to dim algorithm for rx adaptive interrupt moderation
net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
net: phy: adin: implement Energy Detect Powerdown mode via phy-tunable
ethtool: implement Energy Detect Powerdown support via phy-tunable
xen-netfront: do not assume sk_buff_head list is empty in error handling
s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
net: ena: don't wake up tx queue when down
drop_monitor: Better sanitize notified packets
...
Here is the big driver core update for 5.4-rc1.
There was a bit of a churn in here, with a number of core and OF
platform patches being added to the tree, and then after much discussion
and review and a day-long in-person meeting, they were decided to be
reverted and a new set of patches is currently being reviewed on the
mailing list.
Other than that churn, there are two "persistent" branches in here that
other trees will be pulling in as well during the merge window. One
branch to add support for drivers to have the driver core automatically
add sysfs attribute files when a driver is bound to a device so that the
driver doesn't have to manually do it (and then clean it up, as it
always gets it wrong).
There's another branch in here for generic lookup helpers for the driver
core that lots of busses are starting to use. That's the majority of
the non-driver-core changes in this patch series.
There's also some on-going debugfs file creation cleanup that has been
slowly happening over the past few releases, with the goal to hopefully
get that done sometime next year.
All of these have been in linux-next for a while now with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here is the big driver core update for 5.4-rc1.
There was a bit of a churn in here, with a number of core and OF
platform patches being added to the tree, and then after much
discussion and review and a day-long in-person meeting, they were
decided to be reverted and a new set of patches is currently being
reviewed on the mailing list.
Other than that churn, there are two "persistent" branches in here
that other trees will be pulling in as well during the merge window.
One branch to add support for drivers to have the driver core
automatically add sysfs attribute files when a driver is bound to a
device so that the driver doesn't have to manually do it (and then
clean it up, as it always gets it wrong).
There's another branch in here for generic lookup helpers for the
driver core that lots of busses are starting to use. That's the
majority of the non-driver-core changes in this patch series.
There's also some on-going debugfs file creation cleanup that has been
slowly happening over the past few releases, with the goal to
hopefully get that done sometime next year.
All of these have been in linux-next for a while now with no reported
issues"
[ Note that the above-mentioned generic lookup helpers branch was
already brought in by the LED merge (commit 4feaab05dc) that had
shared it.
Also note that that common branch introduced an i2c bug due to a bad
conversion, which got fixed here. - Linus ]
* tag 'driver-core-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (49 commits)
coccinelle: platform_get_irq: Fix parse error
driver-core: add include guard to linux/container.h
sysfs: add BIN_ATTR_WO() macro
driver core: platform: Export platform_get_irq_optional()
hwmon: pwm-fan: Use platform_get_irq_optional()
driver core: platform: Introduce platform_get_irq_optional()
Revert "driver core: Add support for linking devices during device addition"
Revert "driver core: Add edit_links() callback for drivers"
Revert "of/platform: Add functional dependency link from DT bindings"
Revert "driver core: Add sync_state driver/bus callback"
Revert "of/platform: Pause/resume sync state during init and of_platform_populate()"
Revert "of/platform: Create device links for all child-supplier depencencies"
Revert "of/platform: Don't create device links for default busses"
Revert "of/platform: Fix fn definitons for of_link_is_valid() and of_link_property()"
Revert "of/platform: Fix device_links_supplier_sync_state_resume() warning"
Revert "of/platform: Disable generic device linking code for PowerPC"
devcoredump: fix typo in comment
devcoredump: use memory_read_from_buffer
of/platform: Disable generic device linking code for PowerPC
device.h: Fix warnings for mismatched parameter names in comments
...
RST conversion is happily mostly behind us.
- A new document on reproducible builds.
- We finally got around to zapping the documentation for hardware support
that was removed in 2004; one doesn't want to rush these things.
- The usual assortment of fixes, typo corrections, etc.
You'll still find a handful of annoying conflicts against other trees,
mostly tied to the last RST conversions; resolutions are straightforward
and the linux-next ones are good.
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Merge tag 'docs-5.4' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It's a somewhat calmer cycle for docs this time, as the churn of the
mass RST conversion is happily mostly behind us.
- A new document on reproducible builds.
- We finally got around to zapping the documentation for hardware
support that was removed in 2004; one doesn't want to rush these
things.
- The usual assortment of fixes, typo corrections, etc"
* tag 'docs-5.4' of git://git.lwn.net/linux: (67 commits)
Documentation: kbuild: Add document about reproducible builds
docs: printk-formats: Stop encouraging use of unnecessary %h[xudi] and %hh[xudi]
Documentation: Add "earlycon=sbi" to the admin guide
doc🔒 remove reference to clever use of read-write lock
devices.txt: improve entry for comedi (char major 98)
docs: mtd: Update spi nor reference driver
doc: arm64: fix grammar dtb placed in no attributes region
Documentation: sysrq: don't recommend 'S' 'U' before 'B'
mailmap: Update email address for Quentin Perret
docs: ftrace: clarify when tracing is disabled by the trace file
docs: process: fix broken link
Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix title
Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' command
Documentation/arm/sa1100: Remove some obsolete documentation
docs/zh_CN: update Chinese howto.rst for latexdocs making
Documentation: virt: Fix broken reference to virt tree's index
docs: Fix typo on pull requests guide
kernel-doc: Allow anonymous enum
Documentation: sphinx: Don't parse socket() as identifier reference
Documentation: sphinx: Add missing comma to list of strings
...
RELR is a relocation packing format for relative relocations.
The format is described in a generic-abi proposal:
https://groups.google.com/d/topic/generic-abi/bX460iggiKg/discussion
The LLD linker can be instructed to pack relocations in the RELR
format by passing the flag --pack-dyn-relocs=relr.
This patch adds a new config option, CONFIG_RELR. Enabling this option
instructs the linker to pack vmlinux's relative relocations in the RELR
format, and causes the kernel to apply the relocations at startup along
with the RELA relocations. RELA relocations still need to be applied
because the linker will emit RELA relative relocations if they are
unrepresentable in the RELR format (i.e. address not a multiple of 2).
Enabling CONFIG_RELR reduces the size of a defconfig kernel image
with CONFIG_RANDOMIZE_BASE by 3.5MB/16% uncompressed, or 550KB/5%
compressed (lz4).
Signed-off-by: Peter Collingbourne <pcc@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 5cf896fb6b)
Bug: 137200966
Test: booted defconfig + CONFIG_RELR kernel on qemu
Change-Id: I4c55bf5b10bc6c934543c651eca9fc8e260ffc6d
Signed-off-by: Peter Collingbourne <pcc@google.com>
- 52-bit virtual addressing in the kernel
- New ABI to allow tagged user pointers to be dereferenced by syscalls
- Early RNG seeding by the bootloader
- Improve robustness of SMP boot
- Fix TLB invalidation in light of recent architectural clarifications
- Support for i.MX8 DDR PMU
- Remove direct LSE instruction patching in favour of static keys
- Function error injection using kprobes
- Support for the PPTT "thread" flag introduced by ACPI 6.3
- Move PSCI idle code into proper cpuidle driver
- Relaxation of implicit I/O memory barriers
- Build with RELR relocations when toolchain supports them
- Numerous cleanups and non-critical fixes
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"Although there isn't tonnes of code in terms of line count, there are
a fair few headline features which I've noted both in the tag and also
in the merge commits when I pulled everything together.
The part I'm most pleased with is that we had 35 contributors this
time around, which feels like a big jump from the usual small group of
core arm64 arch developers. Hopefully they all enjoyed it so much that
they'll continue to contribute, but we'll see.
It's probably worth highlighting that we've pulled in a branch from
the risc-v folks which moves our CPU topology code out to where it can
be shared with others.
Summary:
- 52-bit virtual addressing in the kernel
- New ABI to allow tagged user pointers to be dereferenced by
syscalls
- Early RNG seeding by the bootloader
- Improve robustness of SMP boot
- Fix TLB invalidation in light of recent architectural
clarifications
- Support for i.MX8 DDR PMU
- Remove direct LSE instruction patching in favour of static keys
- Function error injection using kprobes
- Support for the PPTT "thread" flag introduced by ACPI 6.3
- Move PSCI idle code into proper cpuidle driver
- Relaxation of implicit I/O memory barriers
- Build with RELR relocations when toolchain supports them
- Numerous cleanups and non-critical fixes"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (114 commits)
arm64: remove __iounmap
arm64: atomics: Use K constraint when toolchain appears to support it
arm64: atomics: Undefine internal macros after use
arm64: lse: Make ARM64_LSE_ATOMICS depend on JUMP_LABEL
arm64: asm: Kill 'asm/atomic_arch.h'
arm64: lse: Remove unused 'alt_lse' assembly macro
arm64: atomics: Remove atomic_ll_sc compilation unit
arm64: avoid using hard-coded registers for LSE atomics
arm64: atomics: avoid out-of-line ll/sc atomics
arm64: Use correct ll/sc atomic constraints
jump_label: Don't warn on __exit jump entries
docs/perf: Add documentation for the i.MX8 DDR PMU
perf/imx_ddr: Add support for AXI ID filtering
arm64: kpti: ensure patched kernel text is fetched from PoU
arm64: fix fixmap copy for 16K pages and 48-bit VA
perf/smmuv3: Validate groups for global filtering
perf/smmuv3: Validate group size
arm64: Relax Documentation/arm64/tagged-pointers.rst
arm64: kvm: Replace hardcoded '1' with SYS_PAR_EL1_F
arm64: mm: Ignore spurious translation faults taken from the kernel
...
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Merge 4.19.73 into android-4.19
Changes in 4.19.73
ALSA: hda - Fix potential endless loop at applying quirks
ALSA: hda/realtek - Fix overridden device-specific initialization
ALSA: hda/realtek - Add quirk for HP Pavilion 15
ALSA: hda/realtek - Enable internal speaker & headset mic of ASUS UX431FL
ALSA: hda/realtek - Fix the problem of two front mics on a ThinkCentre
sched/fair: Don't assign runtime for throttled cfs_rq
drm/vmwgfx: Fix double free in vmw_recv_msg()
vhost/test: fix build for vhost test
vhost/test: fix build for vhost test - again
powerpc/tm: Fix FP/VMX unavailable exceptions inside a transaction
batman-adv: fix uninit-value in batadv_netlink_get_ifindex()
batman-adv: Only read OGM tvlv_len after buffer len check
hv_sock: Fix hang when a connection is closed
Blk-iolatency: warn on negative inflight IO counter
blk-iolatency: fix STS_AGAIN handling
{nl,mac}80211: fix interface combinations on crypto controlled devices
timekeeping: Use proper ktime_add when adding nsecs in coarse offset
selftests: fib_rule_tests: use pre-defined DEV_ADDR
x86/ftrace: Fix warning and considate ftrace_jmp_replace() and ftrace_call_replace()
powerpc/64: mark start_here_multiplatform as __ref
media: stm32-dcmi: fix irq = 0 case
arm64: dts: rockchip: enable usb-host regulators at boot on rk3328-rock64
scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
riscv: remove unused variable in ftrace
nvme-fc: use separate work queue to avoid warning
clk: s2mps11: Add used attribute to s2mps11_dt_match
remoteproc: qcom: q6v5: shore up resource probe handling
modules: always page-align module section allocations
kernel/module: Fix mem leak in module_add_modinfo_attrs
drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse"
media: cec/v4l2: move V4L2 specific CEC functions to V4L2
media: cec: remove cec-edid.c
scsi: qla2xxx: Move log messages before issuing command to firmware
keys: Fix the use of the C++ keyword "private" in uapi/linux/keyctl.h
Drivers: hv: kvp: Fix two "this statement may fall through" warnings
x86, hibernate: Fix nosave_regions setup for hibernation
remoteproc: qcom: q6v5-mss: add SCM probe dependency
drm/amdgpu/gfx9: Update gfx9 golden settings.
drm/amdgpu: Update gc_9_0 golden settings.
KVM: x86: hyperv: enforce vp_index < KVM_MAX_VCPUS
KVM: x86: hyperv: consistently use 'hv_vcpu' for 'struct kvm_vcpu_hv' variables
KVM: x86: hyperv: keep track of mismatched VP indexes
KVM: hyperv: define VP assist page helpers
x86/kvm/lapic: preserve gfn_to_hva_cache len on cache reinit
drm/i915: Fix intel_dp_mst_best_encoder()
drm/i915: Rename PLANE_CTL_DECOMPRESSION_ENABLE
drm/i915/gen9+: Fix initial readout for Y tiled framebuffers
drm/atomic_helper: Disallow new modesets on unregistered connectors
Drivers: hv: kvp: Fix the indentation of some "break" statements
Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up
powerplay: Respect units on max dcfclk watermark
drm/amd/pp: Fix truncated clock value when set watermark
drm/amd/dm: Understand why attaching path/tile properties are needed
ARM: davinci: da8xx: define gpio interrupts as separate resources
ARM: davinci: dm365: define gpio interrupts as separate resources
ARM: davinci: dm646x: define gpio interrupts as separate resources
ARM: davinci: dm355: define gpio interrupts as separate resources
ARM: davinci: dm644x: define gpio interrupts as separate resources
s390/zcrypt: reinit ap queue state machine during device probe
media: vim2m: use workqueue
media: vim2m: use cancel_delayed_work_sync instead of flush_schedule_work
drm/i915: Restore sane defaults for KMS on GEM error load
drm/i915: Cleanup gt powerstate from gem
KVM: PPC: Book3S HV: Fix race between kvm_unmap_hva_range and MMU mode switch
Btrfs: clean up scrub is_dev_replace parameter
Btrfs: fix deadlock with memory reclaim during scrub
btrfs: Remove extent_io_ops::fill_delalloc
btrfs: Fix error handling in btrfs_cleanup_ordered_extents
scsi: megaraid_sas: Fix combined reply queue mode detection
scsi: megaraid_sas: Add check for reset adapter bit
scsi: megaraid_sas: Use 63-bit DMA addressing
powerpc/pkeys: Fix handling of pkey state across fork()
btrfs: volumes: Make sure no dev extent is beyond device boundary
btrfs: Use real device structure to verify dev extent
media: vim2m: only cancel work if it is for right context
ARC: show_regs: lockdep: re-enable preemption
ARC: mm: do_page_fault fixes#1: relinquish mmap_sem if signal arrives while handle_mm_fault
IB/uverbs: Fix OOPs upon device disassociation
crypto: ccree - fix resume race condition on init
crypto: ccree - add missing inline qualifier
drm/vblank: Allow dynamic per-crtc max_vblank_count
drm/i915/ilk: Fix warning when reading emon_status with no output
mfd: Kconfig: Fix I2C_DESIGNWARE_PLATFORM dependencies
tpm: Fix some name collisions with drivers/char/tpm.h
bcache: replace hard coded number with BUCKET_GC_GEN_MAX
bcache: treat stale && dirty keys as bad keys
KVM: VMX: Compare only a single byte for VMCS' "launched" in vCPU-run
iio: adc: exynos-adc: Add S5PV210 variant
dt-bindings: iio: adc: exynos-adc: Add S5PV210 variant
iio: adc: exynos-adc: Use proper number of channels for Exynos4x12
mt76: fix corrupted software generated tx CCMP PN
drm/nouveau: Don't WARN_ON VCPI allocation failures
iwlwifi: fix devices with PCI Device ID 0x34F0 and 11ac RF modules
iwlwifi: add new card for 9260 series
x86/kvmclock: set offset for kvm unstable clock
spi: spi-gpio: fix SPI_CS_HIGH capability
powerpc/kvm: Save and restore host AMR/IAMR/UAMOR
mmc: renesas_sdhi: Fix card initialization failure in high speed mode
btrfs: scrub: pass fs_info to scrub_setup_ctx
btrfs: scrub: move scrub_setup_ctx allocation out of device_list_mutex
btrfs: scrub: fix circular locking dependency warning
btrfs: init csum_list before possible free
PCI: qcom: Fix error handling in runtime PM support
PCI: qcom: Don't deassert reset GPIO during probe
drm: add __user attribute to ptr_to_compat()
CIFS: Fix error paths in writeback code
CIFS: Fix leaking locked VFS cache pages in writeback retry
drm/i915: Handle vm_mmap error during I915_GEM_MMAP ioctl with WC set
drm/i915: Sanity check mmap length against object size
usb: typec: tcpm: Try PD-2.0 if sink does not respond to 3.0 source-caps
arm64: dts: stratix10: add the sysmgr-syscon property from the gmac's
IB/mlx5: Reset access mask when looping inside page fault handler
kvm: mmu: Fix overflow on kvm mmu page limit calculation
x86/kvm: move kvm_load/put_guest_xcr0 into atomic context
KVM: x86: Always use 32-bit SMRAM save state for 32-bit kernels
cifs: Fix lease buffer length error
media: i2c: tda1997x: select V4L2_FWNODE
ext4: protect journal inode's blocks using block_validity
ARM: dts: qcom: ipq4019: fix PCI range
ARM: dts: qcom: ipq4019: Fix MSI IRQ type
ARM: dts: qcom: ipq4019: enlarge PCIe BAR range
dt-bindings: mmc: Add supports-cqe property
dt-bindings: mmc: Add disable-cqe-dcmd property.
PCI: Add macro for Switchtec quirk declarations
PCI: Reset Lenovo ThinkPad P50 nvgpu at boot if necessary
dm mpath: fix missing call of path selector type->end_io
blk-mq: free hw queue's resource in hctx's release handler
mmc: sdhci-pci: Add support for Intel CML
PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify code
cifs: smbd: take an array of reqeusts when sending upper layer data
dm crypt: move detailed message into debug level
signal/arc: Use force_sig_fault where appropriate
ARC: mm: fix uninitialised signal code in do_page_fault
ARC: mm: SIGSEGV userspace trying to access kernel virtual memory
drm/amdkfd: Add missing Polaris10 ID
kvm: Check irqchip mode before assign irqfd
drm/amdgpu: fix ring test failure issue during s3 in vce 3.0 (V2)
drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc
Btrfs: fix race between block group removal and block group allocation
cifs: add spinlock for the openFileList to cifsInodeInfo
clk: tegra: Fix maximum audio sync clock for Tegra124/210
clk: tegra210: Fix default rates for HDA clocks
IB/hfi1: Avoid hardlockup with flushlist_lock
apparmor: reset pos on failure to unpack for various functions
scsi: target/core: Use the SECTOR_SHIFT constant
scsi: target/iblock: Fix overrun in WRITE SAME emulation
staging: wilc1000: fix error path cleanup in wilc_wlan_initialize()
scsi: zfcp: fix request object use-after-free in send path causing wrong traces
cifs: Properly handle auto disabling of serverino option
ALSA: hda - Don't resume forcibly i915 HDMI/DP codec
ceph: use ceph_evict_inode to cleanup inode's resource
KVM: x86: optimize check for valid PAT value
KVM: VMX: Always signal #GP on WRMSR to MSR_IA32_CR_PAT with bad value
KVM: VMX: Fix handling of #MC that occurs during VM-Entry
KVM: VMX: check CPUID before allowing read/write of IA32_XSS
KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct
KVM: PPC: Book3S HV: Fix CR0 setting in TM emulation
ARM: dts: gemini: Set DIR-685 SPI CS as active low
RDMA/srp: Document srp_parse_in() arguments
RDMA/srp: Accept again source addresses that do not have a port number
btrfs: correctly validate compression type
resource: Include resource end in walk_*() interfaces
resource: Fix find_next_iomem_res() iteration issue
resource: fix locking in find_next_iomem_res()
pstore: Fix double-free in pstore_mkfile() failure path
dm thin metadata: check if in fail_io mode when setting needs_check
drm/panel: Add support for Armadeus ST0700 Adapt
ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips
powerpc/mm: Limit rma_size to 1TB when running without HV mode
iommu/iova: Remove stale cached32_node
gpio: don't WARN() on NULL descs if gpiolib is disabled
i2c: at91: disable TXRDY interrupt after sending data
i2c: at91: fix clk_offset for sama5d2
mm/migrate.c: initialize pud_entry in migrate_vma()
iio: adc: gyroadc: fix uninitialized return code
NFSv4: Fix delegation state recovery
bcache: only clear BTREE_NODE_dirty bit when it is set
bcache: add comments for mutex_lock(&b->write_lock)
bcache: fix race in btree_flush_write()
drm/i915: Make sure cdclk is high enough for DP audio on VLV/CHV
virtio/s390: fix race on airq_areas[]
drm/atomic_helper: Allow DPMS On<->Off changes for unregistered connectors
ext4: don't perform block validity checks on the journal inode
ext4: fix block validity checks for journal inodes using indirect blocks
ext4: unsigned int compared against zero
PCI: Reset both NVIDIA GPU and HDA in ThinkPad P50 workaround
powerpc/tm: Remove msr_tm_active()
powerpc/tm: Fix restoring FP/VMX facility incorrectly on interrupts
vhost: make sure log_num < in_num
Linux 4.19.73
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7bc57825aeb36759bb8e8726888da9af06392c09
[ Upstream commit 31013836a7 ]
The basepath may contain special characters, which would confuse the regex
matcher. ${var#prefix} does the right thing.
Link: http://lkml.kernel.org/r/20190518055946.181563-1-drinkcat@chromium.org
Fixes: 67a28de47f ("scripts/decode_stacktrace: only strip base path when a prefix of the path")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
I used the C comment style (/* ... */) for the flex and bison files
as in Kconfig (scripts/kconfig/{lexer.l,parser.y})
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Use the __section() shorthand. This avoids escaping double-quotes,
and improves the readability.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This makes *.mod.c much more readable. I confirmed depmod still
produced the same modules.dep file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Arnd Bergmann reported false-positive modpost warnings detected by his
randconfig testing of linux-next.
Actually, this happens under the combination of CONFIG_MODVERSIONS
and CONFIG_TRIM_UNUSED_KSYMS since commit 15bfc2348d ("modpost:
check for static EXPORT_SYMBOL* functions").
For example, arch/arm/config/multi_v7_defconfig + CONFIG_MODVERSIONS
+ CONFIG_TRIM_UNUSED_KSYMS produces the following false-positives:
WARNING: "__lshrdi3" [vmlinux] is a static (unknown)
WARNING: "__ashrdi3" [vmlinux] is a static (unknown)
WARNING: "__aeabi_lasr" [vmlinux] is a static (unknown)
WARNING: "__aeabi_llsr" [vmlinux] is a static (unknown)
WARNING: "ftrace_set_clr_event" [vmlinux] is a static (unknown)
WARNING: "__muldi3" [vmlinux] is a static (unknown)
WARNING: "__aeabi_ulcmp" [vmlinux] is a static (unknown)
WARNING: "__ucmpdi2" [vmlinux] is a static (unknown)
WARNING: "__aeabi_lmul" [vmlinux] is a static (unknown)
WARNING: "__bswapsi2" [vmlinux] is a static (unknown)
WARNING: "__bswapdi2" [vmlinux] is a static (unknown)
WARNING: "__ashldi3" [vmlinux] is a static (unknown)
WARNING: "__aeabi_llsl" [vmlinux] is a static (unknown)
The root cause of the problem is not in the modpost, but in the
implementation of CONFIG_TRIM_UNUSED_KSYMS.
If there is at least one untrimmed symbol in the file, genksyms is
invoked to calculate CRC of *all* the exported symbols in that file
even if some of them have been trimmed due to no caller existing.
As a result, .tmp_*.ver files contain CRC of trimmed symbols, thus
unneeded, orphan __crc* symbols are added to objects. It had been
harmless until recently.
With commit 15bfc2348d ("modpost: check for static EXPORT_SYMBOL*
functions"), it is now harmful because the bogus __crc* symbols make
modpost call sym_update_crc() to add the symbols to the hash table,
but there is no one that clears the ->is_static member.
I gave Fixes to the first commit that uncovered the issue, but the
potential problem has long existed since commit f235541699
("export.h: allow for per-symbol configurable EXPORT_SYMBOL()").
Fixes: 15bfc2348d ("modpost: check for static EXPORT_SYMBOL* functions")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Arnd Bergmann <arnd@arndb.de>
A script that uses the '<module>.ns_deps' files generated by modpost to
automatically add the required symbol namespace dependencies to each
module.
Usage:
1) Move some symbols to a namespace with EXPORT_SYMBOL_NS() or define
DEFAULT_SYMBOL_NAMESPACE
2) Run 'make' (or 'make modules') and get warnings about modules not
importing that namespace.
3) Run 'make nsdeps' to automatically add required import statements
to said modules.
This makes it easer for subsystem maintainers to introduce and maintain
symbol namespaces into their codebase.
Co-developed-by: Martijn Coenen <maco@android.com>
Signed-off-by: Martijn Coenen <maco@android.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
This patch adds an option to modpost to generate a <module>.ns_deps file
per module, containing the namespace dependencies for that module.
E.g. if the linked module my-module.ko would depend on the symbol
myfunc.MY_NS in the namespace MY_NS, the my-module.ns_deps file created
by modpost would contain the entry MY_NS to express the namespace
dependency of my-module imposed by using the symbol myfunc.
These files can subsequently be used by static analysis tools (like
coccinelle scripts) to address issues with missing namespace imports. A
later patch of this series will introduce such a script 'nsdeps' and a
corresponding make target to automatically add missing
MODULE_IMPORT_NS() definitions to the module's sources. For that it uses
the information provided in the generated .ns_deps files.
Co-developed-by: Martijn Coenen <maco@android.com>
Signed-off-by: Martijn Coenen <maco@android.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Add support for symbols that are exported into namespaces. For that,
extract any namespace suffix from the symbol name. In addition, emit a
warning whenever a module refers to an exported symbol without
explicitly importing the namespace that it is defined in. This patch
consistently adds the namespace suffix to symbol names exported into
Module.symvers.
Example warning emitted by modpost in case of the above violation:
WARNING: module ums-usbat uses symbol usb_stor_resume from namespace
USB_STORAGE, but does not import it.
Co-developed-by: Martijn Coenen <maco@android.com>
Signed-off-by: Martijn Coenen <maco@android.com>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
GCC and Clang have different policy for -Wunused-function; GCC does not
warn unused static inline functions at all whereas Clang does if they
are defined in source files instead of included headers although it has
been suppressed since commit abb2ea7dfd ("compiler, clang: suppress
warning for unused static inline functions").
We often miss to delete unused functions where 'static inline' is used
in *.c files since there is no tool to detect them. Unused code remains
until somebody notices. For example, commit 075ddd7568 ("regulator:
core: remove unused rdev_get_supply()").
Let's remove __maybe_unused from the inline macro to allow Clang to
start finding unused static inline functions. For now, we do this only
for W=1 build since it is not a good idea to sprinkle warnings for the
normal build (e.g. 35 warnings for arch/x86/configs/x86_64_defconfig).
My initial attempt was to add -Wno-unused-function for no W= build
(https://lore.kernel.org/patchwork/patch/1120594/)
Nathan Chancellor pointed out that would weaken Clang's checks since
we would no longer get -Wunused-function without W=1. It is true GCC
would catch unused static non-inline functions, but it would weaken
Clang as a standalone compiler, at least.
Hence, here is a counter implementation. The current problem is, W=...
only controls compiler flags, which are globally effective. There is
no way to address only 'static inline' functions.
This commit defines KBUILD_EXTRA_WARN[123] corresponding to W=[123].
When KBUILD_EXTRA_WARN1 is defined, __maybe_unused is omitted from
the 'inline' macro.
The new macro __inline_maybe_unused makes the code a bit uglier, so I
hope we can remove it entirely after fixing most of the warnings.
If you contribute to code clean-up, please run "make CC=clang W=1"
and check -Wunused-function warnings. You will find lots of unused
functions.
Some of them are false-positives because the call-sites are disabled
by #ifdef. I do not like to abuse the inline keyword for suppressing
unused-function warnings because it is intended to be a hint for the
compiler optimization. I prefer #ifdef around the definition, or
__maybe_unused if #ifdef would make the code too ugly.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
${@:2} is BASH-specific extension, which makes link-vmlinux.sh rely on
BASH. Use shift and ${@} instead to fix this issue.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 341dfcf8d7 ("btf: expose BTF info through sysfs")
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Daniel Borkmann says:
====================
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Add the ability to use unaligned chunks in the AF_XDP umem. By
relaxing where the chunks can be placed, it allows to use an
arbitrary buffer size and place whenever there is a free
address in the umem. Helps more seamless DPDK AF_XDP driver
integration. Support for i40e, ixgbe and mlx5e, from Kevin and
Maxim.
2) Addition of a wakeup flag for AF_XDP tx and fill rings so the
application can wake up the kernel for rx/tx processing which
avoids busy-spinning of the latter, useful when app and driver
is located on the same core. Support for i40e, ixgbe and mlx5e,
from Magnus and Maxim.
3) bpftool fixes for printf()-like functions so compiler can actually
enforce checks, bpftool build system improvements for custom output
directories, and addition of 'bpftool map freeze' command, from Quentin.
4) Support attaching/detaching XDP programs from 'bpftool net' command,
from Daniel.
5) Automatic xskmap cleanup when AF_XDP socket is released, and several
barrier/{read,write}_once fixes in AF_XDP code, from Björn.
6) Relicense of bpf_helpers.h/bpf_endian.h for future libbpf
inclusion as well as libbpf versioning improvements, from Andrii.
7) Several new BPF kselftests for verifier precision tracking, from Alexei.
8) Several BPF kselftest fixes wrt endianess to run on s390x, from Ilya.
9) And more BPF kselftest improvements all over the place, from Stanislav.
10) Add simple BPF map op cache for nfp driver to batch dumps, from Jakub.
11) AF_XDP socket umem mapping improvements for 32bit archs, from Ivan.
12) Add BPF-to-BPF call and BTF line info support for s390x JIT, from Yauheni.
13) Small optimization in arm64 JIT to spare 1 insns for BPF_MOD, from Jerin.
14) Fix an error check in bpf_tcp_gen_syncookie() helper, from Petar.
15) Various minor fixes and cleanups, from Nathan, Masahiro, Masanari,
Peter, Wei, Yue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
KBUILD_ENABLE_EXTRA_GCC_CHECKS started as a switch to add extra warning
options for GCC, but now it is a historical misnomer since we use it
also for Clang, DTC, and even kernel-doc.
Rename it to more sensible, shorter KBUILD_EXTRA_WARN.
For the backward compatibility, KBUILD_ENABLE_EXTRA_GCC_CHECKS is still
supported (but not advertised in the documentation).
I also fixed up 'make help', and updated the documentation.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
Instead of the warning-[123] magic, let's accumulate compiler options
to KBUILD_CFLAGS directly as the top Makefile does. I think this makes
it easier to understand what is going on in this file.
This commit slightly changes the behavior, I think all of which are OK.
[1] Currently, cc-option calls are needlessly evaluated. For example,
warning-3 += $(call cc-option, -Wpacked-bitfield-compat)
needs evaluating only when W=3, but it is actually evaluated for
W=1, W=2 as well. With this commit, only relevant cc-option calls
will be evaluated. This is a slight optimization.
[2] Currently, unsupported level like W=4 is checked by:
$(error W=$(KBUILD_ENABLE_EXTRA_GCC_CHECKS) is unknown)
This will no longer be checked, but I do not think it is a big
deal.
[3] Currently, 4 Clang warnings (Winitializer-overrides, Wformat,
Wsign-compare, Wformat-zero-length) are shown by any of W=1, W=2,
and W=3. With this commit, they will be warned only by W=1. I
think this is a more correct behavior since each warning belongs
to only one group.
For understanding this commit correctly:
We have 3 warning groups, W=1, W=2, and W=3. You may think W=3 has a
higher level than W=1, but they are actually independent. If you like,
you can combine them like W=13. To enable all the warnings, you can
pass W=123. It is shown by 'make help', but not noticed much. Since we
support W= combination, there should not exist intersection among the
three groups. If we enable Winitializer-overrides for W=1, we do not
need to for W=2 or W=3. This is the reason why I think the change [3]
makes sense.
The documentation says -Winitializer-overrides is enabled by default.
(https://clang.llvm.org/docs/DiagnosticsReference.html#winitializer-overrides)
We negate it by passing -Wno-initializer-overrides for the normal
build, but we do not do that for W=1. This means, W=1 effectively
enables -Winitializer-overrides by the clang's default. The same for
the other three.
Add comments in case people are confused with the code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
The merge_config.sh script verifies that all the config options have
their expected value in the resulting file and prints any issues as
warnings. These checks aren't intended to be treated as errors given
the current implementation. However, since "set -e" was added, if the
grep command to look for a config option does not find it the script
will then abort prematurely.
Handle the case where the grep exit status is non-zero by setting
ACTUAL_VAL to an empty string to restore previous functionality.
Fixes: cdfca82157 ("merge_config.sh: Check error codes from make")
Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Kbuild provides per-file compiler flag addition/removal:
CFLAGS_<basetarget>.o
CFLAGS_REMOVE_<basetarget>.o
AFLAGS_<basetarget>.o
AFLAGS_REMOVE_<basetarget>.o
CPPFLAGS_<basetarget>.lds
HOSTCFLAGS_<basetarget>.o
HOSTCXXFLAGS_<basetarget>.o
The <basetarget> is the filename of the target with its directory and
suffix stripped.
This syntax comes into a trouble when two files with the same basename
appear in one Makefile, for example:
obj-y += foo.o
obj-y += dir/foo.o
CFLAGS_foo.o := <some-flags>
Here, the <some-flags> applies to both foo.o and dir/foo.o
The real world problem is:
scripts/kconfig/util.c
scripts/kconfig/lxdialog/util.c
Both files are compiled into scripts/kconfig/mconf, but only the
latter should be given with the ncurses flags.
It is more sensible to use the relative path to the Makefile, like this:
obj-y += foo.o
CFLAGS_foo.o := <some-flags>
obj-y += dir/foo.o
CFLAGS_dir/foo.o := <other-flags>
At first, I attempted to replace $(basetarget) with $*. The $* variable
is replaced with the stem ('%') part in a pattern rule. This works with
most of cases, but does not for explicit rules.
For example, arch/ia64/lib/Makefile reuses rule_as_o_S in its own
explicit rules, so $* will be empty, resulting in ignoring the per-file
AFLAGS.
I introduced a new variable, target-stem, which can be used also from
explicit rules.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Add NOFAIL check for the strndup call, because the function
allocates memory and can return NULL. All calls to strdup in
modpost are checked with NOFAIL.
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since guid_t is the recommended data type for UUIDs in
kernel (and I guess uuid_le is meant to be ultimately
replaced with it), it should be made available here as
well.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
CONFIG_SHELL falls back to sh when bash is not installed on the system,
but nobody is testing such a case since bash is usually installed.
So, shell scripts invoked by CONFIG_SHELL are only tested with bash.
It makes it difficult to test whether the hashbang #!/bin/sh is real.
For example, #!/bin/sh in arch/powerpc/kernel/prom_init_check.sh is
false. (I fixed it up)
Besides, some shell scripts invoked by CONFIG_SHELL use bash-extension
and #!/bin/bash is specified as the hashbang, while CONFIG_SHELL may
not always be set to bash.
Probably, the right thing to do is to introduce BASH, which is bash by
default, and always set CONFIG_SHELL to sh. Replace $(CONFIG_SHELL)
with $(BASH) for bash scripts.
If somebody tries to add bash-extension to a #!/bin/sh script, it will
be caught in testing because /bin/sh is a symlink to dash on some major
distributions.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
cleanup() mostly frees/unmaps the malloc'd/privately-mapped
copy of the ELF file recordmcount is working on, which is
set up in mmap_file(). It also deals with positioning within
the pseduo prive-mapping of the file and appending to the ELF
file.
Split into two steps:
mmap_cleanup() for the mapping itself
file_append_cleanup() for allocations storing the
appended ELF data.
Also, move the global variable initializations out of the main,
per-object-file loop and nearer to the alloc/init (mmap_file())
and two cleanup functions so we can more clearly see how they're
related.
Link: http://lkml.kernel.org/r/2a387ac86d133d22c68f57b9933c32bab1d09a2d.1564596289.git.mhelsley@vmware.com
Signed-off-by: Matt Helsley <mhelsley@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Redundant cleanup calls were introduced when transitioning from
the old error/success handling via setjmp/longjmp -- the longjmp
ensured the cleanup() call only happened once but replacing
the success_file()/fail_file() calls with cleanup() meant that
multiple cleanup() calls can happen as we return from function
calls.
In do_file(), looking just before and after the "goto out" jumps we
can see that multiple cleanups() are being performed. We remove
cleanup() calls from the nested functions because it makes the code
easier to review -- the resources being cleaned up are generally
allocated and initialized in the callers so freeing them there
makes more sense.
Other redundant cleanup() calls:
mmap_file() is only called from do_file() and, if mmap_file() fails,
then we goto out and do cleanup() there too.
write_file() is only called from do_file() and do_file()
calls cleanup() unconditionally after returning from write_file()
therefore the cleanup() calls in write_file() are not necessary.
find_secsym_ndx(), called from do_func()'s for-loop, when we are
cleaning up here it's obvious that we break out of the loop and
do another cleanup().
__has_rel_mcount() is called from two parts of do_func()
and calls cleanup(). In theory we move them into do_func(), however
these in turn prove redundant so another simplification step
removes them as well.
Link: http://lkml.kernel.org/r/de197e17fc5426623a847ea7cf3a1560a7402a4b.1564596289.git.mhelsley@vmware.com
Signed-off-by: Matt Helsley <mhelsley@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Recordmcount uses setjmp/longjmp to manage control flow as
it reads and then writes the ELF file. This unusual control
flow is hard to follow and check in addition to being unlike
kernel coding style.
So we rewrite these paths to use regular return values to
indicate error/success. When an error or previously-completed object
file is found we return an error code following kernel
coding conventions -- negative error values and 0 for success when
we're not returning a pointer. We return NULL for those that fail
and return non-NULL pointers otherwise.
One oddity is already_has_rel_mcount -- there we use pointer comparison
rather than string comparison to differentiate between
previously-processed object files and returning the name of a text
section.
Link: http://lkml.kernel.org/r/8ba8633d4afe444931f363c8d924bf9565b89a86.1564596289.git.mhelsley@vmware.com
Signed-off-by: Matt Helsley <mhelsley@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
uwrite() works within the pseudo-mapping and extends it as necessary
without needing the file descriptor (fd) parameter passed to it.
Similarly, ulseek() doesn't need its fd parameter. These parameters
were only added because the functions bear a conceptual resemblance
to write() and lseek(). Worse, they obscure the fact that at the time
uwrite() and ulseek() are called fd_map is not a valid file descriptor.
Remove the unused file descriptor parameters that make it look like
fd_map is still valid.
Link: http://lkml.kernel.org/r/2a136e820ee208469d375265c7b8eb28570749a0.1563992889.git.mhelsley@vmware.com
Signed-off-by: Matt Helsley <mhelsley@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
uread() is only used to initialize the ELF file's pseudo
private-memory mapping while uwrite() and ulseek() work within
the pseudo-mapping and extend it as necessary. Thus it is not
a complementary function to uwrite() and ulseek(). It also makes
no sense to do cleanups inside uread() when its only caller,
mmap_file(), is doing the relevant allocations and associated
initializations.
Therefore it's clearer to use a plain read() call to initialize the
data in mmap_file() and remove uread().
Link: http://lkml.kernel.org/r/31a87c22b19150cec1c8dc800c8b0873a2741703.1563992889.git.mhelsley@vmware.com
Signed-off-by: Matt Helsley <mhelsley@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* for-next/52-bit-kva: (25 commits)
Support for 52-bit virtual addressing in kernel space
* for-next/cpu-topology: (9 commits)
Move CPU topology parsing into core code and add support for ACPI 6.3
* for-next/error-injection: (2 commits)
Support for function error injection via kprobes
* for-next/perf: (8 commits)
Support for i.MX8 DDR PMU and proper SMMUv3 group validation
* for-next/psci-cpuidle: (7 commits)
Move PSCI idle code into a new CPUidle driver
* for-next/rng: (4 commits)
Support for 'rng-seed' property being passed in the devicetree
* for-next/smpboot: (3 commits)
Reduce fragility of secondary CPU bringup in debug configurations
* for-next/tbi: (10 commits)
Introduce new syscall ABI with relaxed requirements for pointer tags
* for-next/tlbi: (6 commits)
Handle spurious page faults arising from kernel space
This '+' was added a long time ago:
| commit c23e6bf05f7802e92fd3da69a1ed35e56f9c85bb (HEAD)
| Author: Kai Germaschewski <kai@tp1.ruhr-uni-bochum.de>
| Date: Mon Oct 28 01:16:34 2002 -0600
|
| kbuild: Fix a "make -j<N>" warning
|
| diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
| index 2c843e0380bc..e7c392fd5788 100644
| --- a/scripts/Makefile.clean
| +++ b/scripts/Makefile.clean
| @@ -42,7 +42,7 @@ quiet_cmd_clean = CLEAN $(obj)
|
| __clean: $(subdir-ymn)
| ifneq ($(strip $(__clean-files) $(clean-rule)),)
| - $(call cmd,clean)
| + +$(call cmd,clean)
| else
| @:
| endif
At that time, cmd_clean contained $(clean-rule), which was able to
invoke sub-make. That was why cleaning with the -j option showed:
warning: jobserver unavailable: using -j1. Add '+' to parent make rule.
It is not the case any more; cmd_clean now just runs the 'rm' command.
The '+' marker is pointless.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The only the difference between clean-files and clean-dirs is the -r
option passed to the 'rm' command.
You can always pass -r, and then remove the clean-dirs syntax.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Both relative path and absolute path have pros and cons. For example,
we can move the source and objtree around together by using the
relative path to the source tree.
Do not force the absolute path to the source tree. If you prefer the
absolute path, you can specify KBUILD_ABS_SRCTREE=1.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Kbuild descends into scripts/basic/ even before the Kconfig.
I do not expect any other host programs added to this Makefile.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Merge 4.19.68 into android-4.19
Changes in 4.19.68
sh: kernel: hw_breakpoint: Fix missing break in switch statement
seq_file: fix problem when seeking mid-record
mm/hmm: fix bad subpage pointer in try_to_unmap_one
mm: mempolicy: make the behavior consistent when MPOL_MF_MOVE* and MPOL_MF_STRICT were specified
mm: mempolicy: handle vma with unmovable pages mapped correctly in mbind
mm/memcontrol.c: fix use after free in mem_cgroup_iter()
mm/usercopy: use memory range to be accessed for wraparound check
Revert "pwm: Set class for exported channels in sysfs"
cpufreq: schedutil: Don't skip freq update when limits change
xtensa: add missing isync to the cpu_reset TLB code
ALSA: hda/realtek - Add quirk for HP Envy x360
ALSA: usb-audio: Fix a stack buffer overflow bug in check_input_term
ALSA: usb-audio: Fix an OOB bug in parse_audio_mixer_unit
ALSA: hda - Apply workaround for another AMD chip 1022:1487
ALSA: hda - Fix a memory leak bug
ALSA: hda - Add a generic reboot_notify
ALSA: hda - Let all conexant codec enter D3 when rebooting
HID: holtek: test for sanity of intfdata
HID: hiddev: avoid opening a disconnected device
HID: hiddev: do cleanup in failure of opening a device
Input: kbtab - sanity check for endpoint type
Input: iforce - add sanity checks
net: usb: pegasus: fix improper read if get_registers() fail
netfilter: ebtables: also count base chain policies
riscv: Make __fstate_clean() work correctly.
clk: at91: generated: Truncate divisor to GENERATED_MAX_DIV + 1
clk: sprd: Select REGMAP_MMIO to avoid compile errors
clk: renesas: cpg-mssr: Fix reset control race condition
xen/pciback: remove set but not used variable 'old_state'
irqchip/gic-v3-its: Free unused vpt_page when alloc vpe table fail
irqchip/irq-imx-gpcv2: Forward irq type to parent
perf header: Fix divide by zero error if f_header.attr_size==0
perf header: Fix use of unitialized value warning
libata: zpodd: Fix small read overflow in zpodd_get_mech_type()
drm/bridge: lvds-encoder: Fix build error while CONFIG_DRM_KMS_HELPER=m
Btrfs: fix deadlock between fiemap and transaction commits
scsi: hpsa: correct scsi command status issue after reset
scsi: qla2xxx: Fix possible fcport null-pointer dereferences
drm/amdgpu: fix a potential information leaking bug
ata: libahci: do not complain in case of deferred probe
kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules
kbuild: Check for unknown options with cc-option usage in Kconfig and clang
arm64/efi: fix variable 'si' set but not used
arm64: unwind: Prohibit probing on return_address()
arm64/mm: fix variable 'pud' set but not used
IB/core: Add mitigation for Spectre V1
IB/mlx5: Fix MR registration flow to use UMR properly
IB/mad: Fix use-after-free in ib mad completion handling
drm: msm: Fix add_gpu_components
drm/exynos: fix missing decrement of retry counter
Revert "kmemleak: allow to coexist with fault injection"
ocfs2: remove set but not used variable 'last_hash'
asm-generic: fix -Wtype-limits compiler warnings
arm64: KVM: regmap: Fix unexpected switch fall-through
KVM: arm/arm64: Sync ICH_VMCR_EL2 back when about to block
staging: comedi: dt3000: Fix signed integer overflow 'divider * base'
staging: comedi: dt3000: Fix rounding up of timer divisor
iio: adc: max9611: Fix temperature reading in probe
USB: core: Fix races in character device registration and deregistraion
usb: gadget: udc: renesas_usb3: Fix sysfs interface of "role"
usb: cdc-acm: make sure a refcount is taken early enough
USB: CDC: fix sanity checks in CDC union parser
USB: serial: option: add D-Link DWM-222 device ID
USB: serial: option: Add support for ZTE MF871A
USB: serial: option: add the BroadMobi BM818 card
USB: serial: option: Add Motorola modem UARTs
drm/i915/cfl: Add a new CFL PCI ID.
dm: disable DISCARD if the underlying storage no longer supports it
arm64: ftrace: Ensure module ftrace trampoline is coherent with I-side
netfilter: conntrack: Use consistent ct id hash calculation
Input: psmouse - fix build error of multiple definition
iommu/amd: Move iommu_init_pci() to .init section
bnx2x: Fix VF's VLAN reconfiguration in reload.
bonding: Add vlan tx offload to hw_enc_features
net: dsa: Check existence of .port_mdb_add callback before calling it
net/mlx4_en: fix a memory leak bug
net/packet: fix race in tpacket_snd()
sctp: fix memleak in sctp_send_reset_streams
sctp: fix the transport error_count check
team: Add vlan tx offload to hw_enc_features
tipc: initialise addr_trail_end when setting node addresses
xen/netback: Reset nr_frags before freeing skb
net/mlx5e: Only support tx/rx pause setting for port owner
net/mlx5e: Use flow keys dissector to parse packets for ARFS
mmc: sdhci-of-arasan: Do now show error message in case of deffered probe
Linux 4.19.68
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8d9bb84a852deab3581f6cb37b4cb16e9bfe927c
[ Upstream commit e8de12fb7c ]
If the particular version of clang a user has doesn't enable
-Werror=unknown-warning-option by default, even though it is the
default[1], then make sure to pass the option to the Kconfig cc-option
command so that testing options from Kconfig files works properly.
Otherwise, depending on the default values setup in the clang toolchain
we will silently assume options such as -Wmaybe-uninitialized are
supported by clang, when they really aren't.
A compilation issue only started happening for me once commit
589834b3a0 ("kbuild: Add -Werror=unknown-warning-option to
CLANG_FLAGS") was applied on top of commit b303c6df80 ("kbuild:
compute false-positive -Wmaybe-uninitialized cases in Kconfig"). This
leads kbuild to try and test for the existence of the
-Wmaybe-uninitialized flag with the cc-option command in
scripts/Kconfig.include, and it doesn't see an error returned from the
option test so it sets the config value to Y. Then the Makefile tries to
pass the unknown option on the command line and
-Werror=unknown-warning-option catches the invalid option and breaks the
build. Before commit 589834b3a0 ("kbuild: Add
-Werror=unknown-warning-option to CLANG_FLAGS") the build works fine,
but any cc-option test of a warning option in Kconfig files silently
evaluates to true, even if the warning option flag isn't supported on
clang.
Note: This doesn't change cc-option usages in Makefiles because those
use a different rule that includes KBUILD_CFLAGS by default (see the
__cc-option command in scripts/Kbuild.incluide). The KBUILD_CFLAGS
variable already has the -Werror=unknown-warning-option flag set. Thanks
to Doug for pointing out the different rule.
[1] https://clang.llvm.org/docs/DiagnosticsReference.html#wunknown-warning-option
Cc: Peter Smith <peter.smith@linaro.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit cb4819934a ]
KBUILD_EXTRA_SYMBOLS makes sense only when building external modules.
Moreover, the modpost sets 'external_module' if the -e option is given.
I replaced $(patsubst %, -e %,...) with simpler $(addprefix -e,...)
while I was here.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
scripts/package/Makefile does not use $(obj) or $(src) at all.
It actually generates files and directories in the top of $(objtree).
I do not see much sense in descending into scripts/package/.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I am not a big fan of the $(objtree)/ hack for clean-files/clean-dirs.
These are created in the top of $(objtree), so let's clean them up
from the top Makefile.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
When we execute make after merging the configurations we ignore any
errors it produces causing whatever is running merge_config.sh to be
unaware of any failures. This issue was noticed by Guillaume Tucker
while looking at problems with testing of clang only builds in KernelCI
which caused Kbuild to be unable to find a working host compiler.
This implementation was suggested by Yamada-san.
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Makefile.lib is included by Makefile.modfinal as well as Makefile.build.
Move modkern_cflags to Makefile.lib in order to simplify cmd_cc_o_c
in Makefile.modfinal. Move modkern_cflags as well for consistency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Add CONFIG_ASM_MODVERSIONS. This allows to remove one if-conditional
nesting in scripts/Makefile.build.
scripts/Makefile.build is run every time Kbuild descends into a
sub-directory. So, I want to avoid $(wildcard ...) evaluation
where possible although computing $(wildcard ...) is so cheap that
it may not make measurable performance difference.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
I think splitting the modpost and linking modules into separate
Makefiles will be useful especially when more complex build steps
come in. The main motivation of this commit is to integrate the
proposed klp-convert feature cleanly.
I moved the logging 'Building modules, stage 2.' to Makefile.modpost
to avoid the code duplication although I do not know whether or not
this message is needed in the first place.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Building s390 kernel with CONFIG_DEBUG_INFO_BTF fails, because
CONFIG_OUTPUT_FORMAT is not defined. As a matter of fact, this variable
appears to be x86-only, so other arches might be affected as well.
Fix by obtaining this value from objdump output, just like it's already
done for bin_arch. The exact objdump invocation is "inspired" by
arch/powerpc/boot/wrapper.
Also, use LANG=C for the existing bin_arch objdump invocation to avoid
potential build issues on systems with non-English locale.
Fixes: 341dfcf8d7 ("btf: expose BTF info through sysfs")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Currently, the timestamp of module linker scripts are not checked.
Add them to the dependency of modules so they are correctly rebuilt.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, the single target build directly descends into the directory
of the target. For example,
$ make foo/bar/baz.o
... directly descends into foo/bar/.
On the other hand, the normal build usually descends one directory at
a time, i.e. descends into foo/, and then foo/bar/.
This difference causes some problems.
[1] miss subdir-asflags-y, subdir-ccflags-y in upper Makefiles
The options in subdir-{as,cc}flags-y take effect in the current
and its sub-directories. In other words, they are inherited
downward. In the example above, the single target will miss
subdir-{as,cc}flags-y if they are defined in foo/Makefile.
[2] could be built in a different directory
As Documentation/kbuild/modules.rst section 4.3 says, Kbuild can
handle files that are spread over several sub-directories.
The build rule of foo/bar/baz.o may not necessarily be specified in
foo/bar/Makefile. It might be specifies in foo/Makefile as follows:
[foo/Makefile]
obj-y := bar/baz.o
This often happens when a module is so big that its source files
are divided into sub-directories.
In this case, there is no Makefile in the foo/bar/ directory, yet
the single target descends into foo/bar/, then fails due to the
missing Makefile. You can still do 'make foo/bar/' for partial
building, but cannot do 'make foo/bar/baz.s'. I believe the single
target '%.s' is a useful feature for inspecting the compiler output.
Some modules work around this issue by putting an empty Makefile
in every sub-directory.
This commit fixes those problems by making the single target build
descend in the same way as the normal build does.
Another change is the single target build will observe the CONFIG
options. Previously, it allowed users to build the foo.o even when
the corresponding CONFIG_FOO is disabled:
obj-$(CONFIG_FOO) += foo.o
In the new behavior, the single target build will just fail and show
"No rule to make target ..." (or "Nothing to be done for ..." if the
stale object already exists, but cannot be updated).
The disadvantage of this commit is the build speed. Now that the
single target build visits every directory and parses lots of
Makefiles, it is slower than before. (But, I hope it will not be
too slow.)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
When kallsyms generation happens, temporary vmlinux outputs are linked
but the quiet make output didn't report it, giving the impression that
the prior command is taking longer than expected.
Instead, report the linking step explicitly. While at it, this
consolidates the repeated "kallsyms generation step" into a single
function and removes the existing copy/pasting.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
scripts/headers_check.pl can detect references to CONFIG options in
exported headers, but it has been disabled for more than a decade.
Reverting commit 7e3fa56141 ("kbuild: drop check for CONFIG_ in
headers_check") would emit the following warnings for headers_check
on x86:
usr/include/mtd/ubi-user.h:283: leaks CONFIG_MTD_UBI_BEB_LIMIT to userspace where it is not valid
usr/include/linux/cm4000_cs.h:26: leaks CONFIG_COMPAT to userspace where it is not valid
usr/include/linux/pkt_cls.h:301: leaks CONFIG_NET_CLS_ACT to userspace where it is not valid
usr/include/linux/videodev2.h:2465: leaks CONFIG_VIDEO_ADV_DEBUG to userspace where it is not valid
usr/include/linux/bpf.h:249: leaks CONFIG_EFFICIENT_UNALIGNED_ACCESS to userspace where it is not valid
usr/include/linux/bpf.h:819: leaks CONFIG_CGROUP_NET_CLASSID to userspace where it is not valid
usr/include/linux/bpf.h:1011: leaks CONFIG_IP_ROUTE_CLASSID to userspace where it is not valid
usr/include/linux/bpf.h:1742: leaks CONFIG_BPF_KPROBE_OVERRIDE to userspace where it is not valid
usr/include/linux/bpf.h:1747: leaks CONFIG_FUNCTION_ERROR_INJECTION to userspace where it is not valid
usr/include/linux/bpf.h:1936: leaks CONFIG_XFRM to userspace where it is not valid
usr/include/linux/bpf.h:2184: leaks CONFIG_BPF_LIRC_MODE2 to userspace where it is not valid
usr/include/linux/bpf.h:2210: leaks CONFIG_BPF_LIRC_MODE2 to userspace where it is not valid
usr/include/linux/bpf.h:2227: leaks CONFIG_SOCK_CGROUP_DATA to userspace where it is not valid
usr/include/linux/bpf.h:2311: leaks CONFIG_NET to userspace where it is not valid
usr/include/linux/bpf.h:2348: leaks CONFIG_NET to userspace where it is not valid
usr/include/linux/bpf.h:2422: leaks CONFIG_BPF_LIRC_MODE2 to userspace where it is not valid
usr/include/linux/bpf.h:2528: leaks CONFIG_NET to userspace where it is not valid
usr/include/linux/pktcdvd.h:37: leaks CONFIG_CDROM_PKTCDVD_WCACHE to userspace where it is not valid
usr/include/linux/hw_breakpoint.h:27: leaks CONFIG_HAVE_MIXED_BREAKPOINTS_REGS to userspace where it is not valid
usr/include/linux/raw.h:17: leaks CONFIG_MAX_RAW_DEVS to userspace where it is not valid
usr/include/linux/elfcore.h:62: leaks CONFIG_BINFMT_ELF_FDPIC to userspace where it is not valid
usr/include/linux/eventpoll.h:82: leaks CONFIG_PM_SLEEP to userspace where it is not valid
usr/include/linux/atmdev.h:104: leaks CONFIG_COMPAT to userspace where it is not valid
usr/include/asm-generic/unistd.h:651: leaks CONFIG_MMU to userspace where it is not valid
usr/include/asm-generic/bitsperlong.h:9: leaks CONFIG_64BIT to userspace where it is not valid
usr/include/asm-generic/fcntl.h:119: leaks CONFIG_64BIT to userspace where it is not valid
usr/include/asm/auxvec.h:14: leaks CONFIG_IA32_EMULATION to userspace where it is not valid
usr/include/asm/e820.h:14: leaks CONFIG_NODES_SHIFT to userspace where it is not valid
usr/include/asm/e820.h:39: leaks CONFIG_X86_PMEM_LEGACY to userspace where it is not valid
usr/include/asm/e820.h:49: leaks CONFIG_INTEL_TXT to userspace where it is not valid
usr/include/asm/mman.h:7: leaks CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS to userspace where it is not valid
Most of these are false positives because scripts/headers_check.pl
parses comment lines.
It is also false negative. arch/x86/include/uapi/asm/auxvec.h contains
CONFIG_IA32_EMULATION and CONFIG_X86_64, but the only former is reported.
It would be possible to fix scripts/headers_check.pl, of course.
However, we already have some duplicated checks between headers_check
and CONFIG_UAPI_HEADER_TEST. At this moment of time, there are still
dozens of headers excluded from the header test (usr/include/Makefile),
but we might be able to remove headers_check eventually.
I re-implemented it in scripts/headers_install.sh by using sed because
the most of code in scripts/headers_install.sh is written in sed.
This patch works like this:
[1] Run scripts/unifdef first because we need to drop the code
surrounded by #ifdef __KERNEL__ ... #endif
[2] Remove all C style comments. The sed code is somewhat complicated
since we need to deal with both single and multi line comments.
Precisely speaking, a comment block is replaced with a space just
in case.
CONFIG_FOO/* this is a comment */CONFIG_BAR
should be converted into:
CONFIG_FOO CONFIG_BAR
instead of:
CONFIG_FOOCONFIG_BAR
[3] Match CONFIG_... pattern. It correctly matches to all CONFIG
options that appear in a single line.
After this commit, this would detect the following warnings, all of
which are real ones.
warning: include/uapi/linux/pktcdvd.h: leak CONFIG_CDROM_PKTCDVD_WCACHE to user-space
warning: include/uapi/linux/hw_breakpoint.h: leak CONFIG_HAVE_MIXED_BREAKPOINTS_REGS to user-space
warning: include/uapi/linux/raw.h: leak CONFIG_MAX_RAW_DEVS to user-space
warning: include/uapi/linux/elfcore.h: leak CONFIG_BINFMT_ELF_FDPIC to user-space
warning: include/uapi/linux/eventpoll.h: leak CONFIG_PM_SLEEP to user-space
warning: include/uapi/linux/atmdev.h: leak CONFIG_COMPAT to user-space
warning: include/uapi/asm-generic/fcntl.h: leak CONFIG_64BIT to user-space
warning: arch/x86/include/uapi/asm/auxvec.h: leak CONFIG_IA32_EMULATION to user-space
warning: arch/x86/include/uapi/asm/auxvec.h: leak CONFIG_X86_64 to user-space
warning: arch/x86/include/uapi/asm/mman.h: leak CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS to user-space
However, it is not nice to show them right now. I created a list of
existing leakages. They are not warned, but a new leakage will be
blocked by the 0-day bot.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
AOSP 983425fe9480 ("eliminate meaningless non-zero values of second_offset and ramdisk_offset")
Revert 7261bb083a97 ("Check DTB image size for boot image header version 2 and above")
which failed to repack image without dtb.
Change-Id: I3d3b7ebb87f137bcc66dd7d59bac3423c0c33193
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
Here are 4 small SPDX fixes for 5.3-rc5. A few style fixes for some
SPDX comments, added an SPDX tag for one file, and fix up some GPL
boilerplate for another file.
All of these have been in linux-next for a few weeks with no reported
issues (they are comment changes only, so that's to be expected...)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX fixes from Greg KH:
"Here are four small SPDX fixes for 5.3-rc5.
A few style fixes for some SPDX comments, added an SPDX tag for one
file, and fix up some GPL boilerplate for another file.
All of these have been in linux-next for a few weeks with no reported
issues (they are comment changes only, so that's to be expected...)"
* tag 'spdx-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
i2c: stm32: Use the correct style for SPDX License Identifier
intel_th: Use the correct style for SPDX License Identifier
coccinelle: api/atomic_as_refcounter: add SPDX License Identifier
kernel/configs: Replace GPL boilerplate code with SPDX identifier
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Merge 4.19.67 into android-4.19
Changes in 4.19.67
iio: cros_ec_accel_legacy: Fix incorrect channel setting
iio: adc: max9611: Fix misuse of GENMASK macro
staging: gasket: apex: fix copy-paste typo
staging: android: ion: Bail out upon SIGKILL when allocating memory.
crypto: ccp - Fix oops by properly managing allocated structures
crypto: ccp - Add support for valid authsize values less than 16
crypto: ccp - Ignore tag length when decrypting GCM ciphertext
usb: usbfs: fix double-free of usb memory upon submiturb error
usb: iowarrior: fix deadlock on disconnect
sound: fix a memory leak bug
mmc: cavium: Set the correct dma max segment size for mmc_host
mmc: cavium: Add the missing dma unmap when the dma has finished.
loop: set PF_MEMALLOC_NOIO for the worker thread
Input: usbtouchscreen - initialize PM mutex before using it
Input: elantech - enable SMBus on new (2018+) systems
Input: synaptics - enable RMI mode for HP Spectre X360
x86/mm: Check for pfn instead of page in vmalloc_sync_one()
x86/mm: Sync also unmappings in vmalloc_sync_all()
mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()
perf annotate: Fix s390 gap between kernel end and module start
perf db-export: Fix thread__exec_comm()
perf record: Fix module size on s390
x86/purgatory: Use CFLAGS_REMOVE rather than reset KBUILD_CFLAGS
gfs2: gfs2_walk_metadata fix
usb: host: xhci-rcar: Fix timeout in xhci_suspend()
usb: yurex: Fix use-after-free in yurex_delete
usb: typec: tcpm: free log buf memory when remove debug file
usb: typec: tcpm: remove tcpm dir if no children
usb: typec: tcpm: Add NULL check before dereferencing config
usb: typec: tcpm: Ignore unsupported/unknown alternate mode requests
can: rcar_canfd: fix possible IRQ storm on high load
can: peak_usb: fix potential double kfree_skb()
netfilter: nfnetlink: avoid deadlock due to synchronous request_module
vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn
netfilter: Fix rpfilter dropping vrf packets by mistake
netfilter: conntrack: always store window size un-scaled
netfilter: nft_hash: fix symhash with modulus one
scripts/sphinx-pre-install: fix script for RHEL/CentOS
drm/amd/display: Wait for backlight programming completion in set backlight level
drm/amd/display: use encoder's engine id to find matched free audio device
drm/amd/display: Fix dc_create failure handling and 666 color depths
drm/amd/display: Only enable audio if speaker allocation exists
drm/amd/display: Increase size of audios array
iscsi_ibft: make ISCSI_IBFT dependson ACPI instead of ISCSI_IBFT_FIND
nl80211: fix NL80211_HE_MAX_CAPABILITY_LEN
mac80211: don't warn about CW params when not using them
allocate_flower_entry: should check for null deref
hwmon: (nct6775) Fix register address and added missed tolerance for nct6106
drm: silence variable 'conn' set but not used
cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
s390/qdio: add sanity checks to the fast-requeue path
ALSA: compress: Fix regression on compressed capture streams
ALSA: compress: Prevent bypasses of set_params
ALSA: compress: Don't allow paritial drain operations on capture streams
ALSA: compress: Be more restrictive about when a drain is allowed
perf tools: Fix proper buffer size for feature processing
perf probe: Avoid calling freeing routine multiple times for same pointer
drbd: dynamically allocate shash descriptor
ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id()
nvme: fix multipath crash when ANA is deactivated
ARM: davinci: fix sleep.S build error on ARMv4
ARM: dts: bcm: bcm47094: add missing #cells for mdio-bus-mux
scsi: megaraid_sas: fix panic on loading firmware crashdump
scsi: ibmvfc: fix WARN_ON during event pool release
scsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG
test_firmware: fix a memory leak bug
tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop
perf/core: Fix creating kernel counters for PMUs that override event->cpu
s390/dma: provide proper ARCH_ZONE_DMA_BITS value
HID: sony: Fix race condition between rumble and device remove.
x86/purgatory: Do not use __builtin_memcpy and __builtin_memset
ALSA: usb-audio: fix a memory leak bug
can: peak_usb: pcan_usb_pro: Fix info-leaks to USB devices
can: peak_usb: pcan_usb_fd: Fix info-leaks to USB devices
hwmon: (nct7802) Fix wrong detection of in4 presence
drm/i915: Fix wrong escape clock divisor init for GLK
ALSA: firewire: fix a memory leak bug
ALSA: hiface: fix multiple memory leak bugs
ALSA: hda - Don't override global PCM hw info flag
ALSA: hda - Workaround for crackled sound on AMD controller (1022:1457)
mac80211: don't WARN on short WMM parameters from AP
dax: dax_layout_busy_page() should not unmap cow pages
SMB3: Fix deadlock in validate negotiate hits reconnect
smb3: send CAP_DFS capability during session setup
NFSv4: Fix an Oops in nfs4_do_setattr
KVM: Fix leak vCPU's VMCS value into other pCPU
mwifiex: fix 802.11n/WPA detection
iwlwifi: don't unmap as page memory that was mapped as single
iwlwifi: mvm: fix an out-of-bound access
iwlwifi: mvm: don't send GEO_TX_POWER_LIMIT on version < 41
iwlwifi: mvm: fix version check for GEO_TX_POWER_LIMIT support
Linux 4.19.67
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5ea813ed5ba6d1eeda51eb4031395ee3e8ba54c3
[ Upstream commit b308467c91 ]
There's a missing parenthesis at the script, with causes it to
fail to detect non-Fedora releases (e. g. RHEL/CentOS).
Tested with Centos 7.6.1810.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
The generic Makefile.kasan propagates CONFIG_KASAN_SHADOW_OFFSET into
KASAN_SHADOW_OFFSET, but only does so for CONFIG_KASAN_GENERIC.
Since commit:
6bd1d0be0e ("arm64: kasan: Switch to using KASAN_SHADOW_OFFSET")
... arm64 defines CONFIG_KASAN_SHADOW_OFFSET in Kconfig rather than
defining KASAN_SHADOW_OFFSET in a Makefile. Thus, if
CONFIG_KASAN_SW_TAGS && KASAN_INLINE are selected, we get build time
splats due to KASAN_SHADOW_OFFSET not being set:
| [mark@lakrids:~/src/linux]% usellvm 8.0.1 usekorg 8.1.0 make ARCH=arm64 CROSS_COMPILE=aarch64-linux- CC=clang
| scripts/kconfig/conf --syncconfig Kconfig
| CC scripts/mod/empty.o
| clang (LLVM option parsing): for the -hwasan-mapping-offset option: '' value invalid for uint argument!
| scripts/Makefile.build:273: recipe for target 'scripts/mod/empty.o' failed
| make[1]: *** [scripts/mod/empty.o] Error 1
| Makefile:1123: recipe for target 'prepare0' failed
| make: *** [prepare0] Error 2
Let's fix this by always propagating CONFIG_KASAN_SHADOW_OFFSET into
KASAN_SHADOW_OFFSET if CONFIG_KASAN is selected, moving the existing
common definition of +CFLAGS_KASAN_NOSANITIZE to the top of
Makefile.kasan.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Tested-by Steve Capper <steve.capper@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
For the single target building %.symtypes from %.S, $(a_flags) is
expanded into the _KERNEL flags even if the object is a part of a
module.
$(real-obj-m:.o=.symtypes): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
... would fix the issue, but it is not nice to duplicate similar code
for every suffix.
Implement modkern_aflags in the same way as modkern_cflags.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, Kbuild treats an object as multi-used when any of
$(foo-objs), $(foo-y), $(foo-m) is set. It makes more sense to
check $(foo-) as well.
In the context of foo-$(CONFIG_FOO_FEATURE1), CONFIG_FOO_FEATURE1
could be unset.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Daniel Borkmann says:
====================
The following pull-request contains BPF updates for your *net-next* tree.
There is a small merge conflict in libbpf (Cc Andrii so he's in the loop
as well):
for (i = 1; i <= btf__get_nr_types(btf); i++) {
t = (struct btf_type *)btf__type_by_id(btf, i);
if (!has_datasec && btf_is_var(t)) {
/* replace VAR with INT */
t->info = BTF_INFO_ENC(BTF_KIND_INT, 0, 0);
<<<<<<< HEAD
/*
* using size = 1 is the safest choice, 4 will be too
* big and cause kernel BTF validation failure if
* original variable took less than 4 bytes
*/
t->size = 1;
*(int *)(t+1) = BTF_INT_ENC(0, 0, 8);
} else if (!has_datasec && kind == BTF_KIND_DATASEC) {
=======
t->size = sizeof(int);
*(int *)(t + 1) = BTF_INT_ENC(0, 0, 32);
} else if (!has_datasec && btf_is_datasec(t)) {
>>>>>>> 72ef80b5ee
/* replace DATASEC with STRUCT */
Conflict is between the two commits 1d4126c4e1 ("libbpf: sanitize VAR to
conservative 1-byte INT") and b03bc6853c ("libbpf: convert libbpf code to
use new btf helpers"), so we need to pick the sanitation fixup as well as
use the new btf_is_datasec() helper and the whitespace cleanup. Looks like
the following:
[...]
if (!has_datasec && btf_is_var(t)) {
/* replace VAR with INT */
t->info = BTF_INFO_ENC(BTF_KIND_INT, 0, 0);
/*
* using size = 1 is the safest choice, 4 will be too
* big and cause kernel BTF validation failure if
* original variable took less than 4 bytes
*/
t->size = 1;
*(int *)(t + 1) = BTF_INT_ENC(0, 0, 8);
} else if (!has_datasec && btf_is_datasec(t)) {
/* replace DATASEC with STRUCT */
[...]
The main changes are:
1) Addition of core parts of compile once - run everywhere (co-re) effort,
that is, relocation of fields offsets in libbpf as well as exposure of
kernel's own BTF via sysfs and loading through libbpf, from Andrii.
More info on co-re: http://vger.kernel.org/bpfconf2019.html#session-2
and http://vger.kernel.org/lpc-bpf2018.html#session-2
2) Enable passing input flags to the BPF flow dissector to customize parsing
and allowing it to stop early similar to the C based one, from Stanislav.
3) Add a BPF helper function that allows generating SYN cookies from XDP and
tc BPF, from Petar.
4) Add devmap hash-based map type for more flexibility in device lookup for
redirects, from Toke.
5) Improvements to XDP forwarding sample code now utilizing recently enabled
devmap lookups, from Jesper.
6) Add support for reporting the effective cgroup progs in bpftool, from Jakub
and Takshak.
7) Fix reading kernel config from bpftool via /proc/config.gz, from Peter.
8) Fix AF_XDP umem pages mapping for 32 bit architectures, from Ivan.
9) Follow-up to add two more BPF loop tests for the selftest suite, from Alexei.
10) Add perf event output helper also for other skb-based program types, from Allan.
11) Fix a co-re related compilation error in selftests, from Yonghong.
====================
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Expose kernel's BTF under the name vmlinux to be more uniform with using
kernel module names as file names in the future.
Fixes: 341dfcf8d7 ("btf: expose BTF info through sysfs")
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Update the build scripts and the version magic to reflect when
CONFIG_PREEMPT_RT is enabled in the same way as CONFIG_PREEMPT is treated.
The resulting version strings:
Linux m 5.3.0-rc1+ #100 SMP Fri Jul 26 ...
Linux m 5.3.0-rc1+ #101 SMP PREEMPT Fri Jul 26 ...
Linux m 5.3.0-rc1+ #102 SMP PREEMPT_RT Fri Jul 26 ...
The module vermagic:
5.3.0-rc1+ SMP mod_unload modversions
5.3.0-rc1+ SMP preempt mod_unload modversions
5.3.0-rc1+ SMP preempt_rt mod_unload modversions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Flex and bison are used for kconfig, dtc, genksyms, all of which are
host programs. I never imagine the kernel embeds a parser or a lexer.
Move the flex and bison rules to scripts/Makefile.host. This file is
included only when hostprogs-y etc. is present in the Makefile in the
directory. So, parsing these rules are skipped in most of directories.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We generally expect bison to create not only a C file, but also a
header, which will be included from the lexer.
Currently, Kbuild generates them in separate rules. So, for instance,
when building Kconfig, you will notice bison is invoked twice:
HOSTCC scripts/kconfig/conf.o
HOSTCC scripts/kconfig/confdata.o
HOSTCC scripts/kconfig/expr.o
LEX scripts/kconfig/lexer.lex.c
YACC scripts/kconfig/parser.tab.h
HOSTCC scripts/kconfig/lexer.lex.o
YACC scripts/kconfig/parser.tab.c
HOSTCC scripts/kconfig/parser.tab.o
HOSTCC scripts/kconfig/preprocess.o
HOSTCC scripts/kconfig/symbol.o
HOSTLD scripts/kconfig/conf
Make handles such cases nicely in pattern rules [1]. Merge the two
rules so that one invokcation of bison can generate both of them.
HOSTCC scripts/kconfig/conf.o
HOSTCC scripts/kconfig/confdata.o
HOSTCC scripts/kconfig/expr.o
LEX scripts/kconfig/lexer.lex.c
YACC scripts/kconfig/parser.tab.[ch]
HOSTCC scripts/kconfig/lexer.lex.o
HOSTCC scripts/kconfig/parser.tab.o
HOSTCC scripts/kconfig/preprocess.o
HOSTCC scripts/kconfig/symbol.o
HOSTLD scripts/kconfig/conf
[1] Pattern rule
GNU Make manual says:
"Pattern rules may have more than one target. Unlike normal rules,
this does not act as many different rules with the same prerequisites
and recipe. If a pattern rule has multiple targets, make knows that
the rule's recipe is responsible for making all of the targets. The
recipe is executed only once to make all the targets. When searching
for a pattern rule to match a target, the target patterns of a rule
other than the one that matches the target in need of a rule are
incidental: make worries only about giving a recipe and prerequisites
to the file presently in question. However, when this file's recipe is
run, the other targets are marked as having been updated themselves."
https://www.gnu.org/software/make/manual/html_node/Pattern-Intro.html
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
$(basename ...) trims the last suffix. Using it is more intuitive in
my opinion.
This pattern rule makes %.asn1.c and %.asn1.h at the same time.
Previously, the short log showed only either of them, depending on
the target file in question.
To clarify that two files are being generated by the single recipe,
I changed the log as follows:
Before:
ASN.1 crypto/asymmetric_keys/x509.asn1.c
After:
ASN.1 crypto/asymmetric_keys/x509.asn1.[ch]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The gold linker has known issues of failing the build both in random and in
predictible ways:
- The x86/X32 VDSO build fails with:
arch/x86/entry/vdso/vclock_gettime-x32.o:vclock_gettime.c:function do_hres:
error: relocation overflow: reference to 'hvclock_page'
That's a known issue for years and the usual workaround is to disable
CONFIG_X86_32
- A recent build failure is caused by turning a relocation into an
absolute one for unknown reasons. See link below.
- There are a couple of gold workarounds applied already, but reports
about broken builds with ld.gold keep coming in on a regular base and in
most cases the root cause is unclear.
In context of the most recent fail H.J. stated:
"Since building a workable kernel for different kernel configurations
isn't a requirement for gold, I don't recommend gold for kernel."
So instead of dealing with attempts to duct tape gold support without
understanding the root cause and without support from the gold folks, fail
the build when gold is detected.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/CAMe9rOqMqkQ0LNpm25yE_Yt0FKp05WmHOrwc0aRDb53miFKM+w@mail.gmail.com
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This patch adds a check to warn about static EXPORT_SYMBOL* functions
during the modpost. In most of the cases, a static symbol marked for
exporting is an odd combination that should be fixed either by deleting
the exporting mark or by removing the static attribute and adding the
appropriate declaration to headers.
This check could help to detect the following problems:
1. 550113d4e9 ("i2c: add newly exported functions to the header, too")
2. 54638c6eaf ("net: phy: make exported variables non-static")
3. 98ef2046f2 ("mm: remove the exporting of totalram_pages")
4. 73df167c81 ("s390/zcrypt: remove the exporting of ap_query_configuration")
5. a57caf8c52 ("sunrpc/cache: remove the exporting of cache_seq_next")
6. e4e4730698 ("crypto: skcipher - remove the exporting of skcipher_walk_next")
7. 14b4c48bb1 ("gve: Remove the exporting of gve_probe")
8. 9b79ee9773 ("scsi: libsas: remove the exporting of sas_wait_eh")
9. ...
The build time impact is very limited and is almost at the unnoticeable
level (< 1 sec).
Acked-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Make .BTF section allocated and expose its contents through sysfs.
/sys/kernel/btf directory is created to contain all the BTFs present
inside kernel. Currently there is only kernel's main BTF, represented as
/sys/kernel/btf/kernel file. Once kernel modules' BTFs are supported,
each module will expose its BTF as /sys/kernel/btf/<module-name> file.
Current approach relies on a few pieces coming together:
1. pahole is used to take almost final vmlinux image (modulo .BTF and
kallsyms) and generate .BTF section by converting DWARF info into
BTF. This section is not allocated and not mapped to any segment,
though, so is not yet accessible from inside kernel at runtime.
2. objcopy dumps .BTF contents into binary file and subsequently
convert binary file into linkable object file with automatically
generated symbols _binary__btf_kernel_bin_start and
_binary__btf_kernel_bin_end, pointing to start and end, respectively,
of BTF raw data.
3. final vmlinux image is generated by linking this object file (and
kallsyms, if necessary). sysfs_btf.c then creates
/sys/kernel/btf/kernel file and exposes embedded BTF contents through
it. This allows, e.g., libbpf and bpftool access BTF info at
well-known location, without resorting to searching for vmlinux image
on disk (location of which is not standardized and vmlinux image
might not be even available in some scenarios, e.g., inside qemu
during testing).
Alternative approach using .incbin assembler directive to embed BTF
contents directly was attempted but didn't work, because sysfs_proc.o is
not re-compiled during link-vmlinux.sh stage. This is required, though,
to update embedded BTF data (initially empty data is embedded, then
pahole generates BTF info and we need to regenerate sysfs_btf.o with
updated contents, but it's too late at that point).
If BTF couldn't be generated due to missing or too old pahole,
sysfs_btf.c handles that gracefully by detecting that
_binary__btf_kernel_bin_start (weak symbol) is 0 and not creating
/sys/kernel/btf at all.
v2->v3:
- added Documentation/ABI/testing/sysfs-kernel-btf (Greg K-H);
- created proper kobject (btf_kobj) for btf directory (Greg K-H);
- undo v2 change of reusing vmlinux, as it causes extra kallsyms pass
due to initially missing __binary__btf_kernel_bin_{start/end} symbols;
v1->v2:
- allow kallsyms stage to re-use vmlinux generated by gen_btf();
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
In C is a valid construction to have an anonymous enumerator.
Though we have now:
drivers/pinctrl/intel/pinctrl-intel.c:240: error: Cannot parse enum!
Support it in the kernel-doc script.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since commit ff9b45c55b ("kbuild: modpost: read modules.order instead
of $(MODVERDIR)/*.mod"), a module is no longer built in the following
pattern:
[Makefile]
subdir-y := some-module
[some-module/Makefile]
obj-m := some-module.o
You cannot write Makefile this way in upstream because modules.order is
not correctly generated. subdir-y is used to descend to a sub-directory
that builds tools, device trees, etc.
For external modules, the modules order does not matter. So, the
Makefile above was known to work.
I believe the Makefile should be re-written as follows:
[Makefile]
obj-m := some-module/
[some-module/Makefile]
obj-m := some-module.o
However, people will have no idea if their Makefile suddenly stops
working. In fact, I received questions from multiple people.
Show a warning for a while if obj-m is specified in a Makefile visited
by subdir-y or subdir-m.
I touched the %/ rule to avoid false-positive warnings for the single
target.
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Tom Stonecypher <thomas.edwardx.stonecypher@intel.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
The modules.order files in directories visited by the chain of obj-y
or obj-m are merged to the upper-level ones, and become parts of the
top-level modules.order. On the other hand, there is no need to
generate modules.order in directories visited by subdir-y or subdir-m
since they would become orphan anyway.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The current implementation of need-builtin is false-positive,
for example, in the following Makefile:
obj-m := foo/
obj-y := foo/bar/
..., where foo/built-in.a is not required.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I removed the single target %.ko in commit ff9b45c55b ("kbuild:
modpost: read modules.order instead of $(MODVERDIR)/*.mod") because
the modpost stage does not work reliably. For instance, the module
dependency, modversion, etc. do not work if we lack symbol information
from the other modules.
Yet, some people still want to build only one module in their interest,
and it may be still useful if it is used within those limitations.
Fixes: ff9b45c55b ("kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod")
Reported-by: Don Brace <don.brace@microsemi.com>
Reported-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Merge 4.19.65 into android-4.19
Changes in 4.19.65
ARM: riscpc: fix DMA
ARM: dts: rockchip: Make rk3288-veyron-minnie run at hs200
ARM: dts: rockchip: Make rk3288-veyron-mickey's emmc work again
ARM: dts: rockchip: Mark that the rk3288 timer might stop in suspend
ftrace: Enable trampoline when rec count returns back to one
dmaengine: tegra-apb: Error out if DMA_PREP_INTERRUPT flag is unset
arm64: dts: rockchip: fix isp iommu clocks and power domain
kernel/module.c: Only return -EEXIST for modules that have finished loading
firmware/psci: psci_checker: Park kthreads before stopping them
MIPS: lantiq: Fix bitfield masking
dmaengine: rcar-dmac: Reject zero-length slave DMA requests
clk: tegra210: fix PLLU and PLLU_OUT1
fs/adfs: super: fix use-after-free bug
clk: sprd: Add check for return value of sprd_clk_regmap_init()
btrfs: fix minimum number of chunk errors for DUP
btrfs: qgroup: Don't hold qgroup_ioctl_lock in btrfs_qgroup_inherit()
cifs: Fix a race condition with cifs_echo_request
ceph: fix improper use of smp_mb__before_atomic()
ceph: return -ERANGE if virtual xattr value didn't fit in buffer
ACPI: blacklist: fix clang warning for unused DMI table
scsi: zfcp: fix GCC compiler warning emitted with -Wmaybe-uninitialized
perf version: Fix segfault due to missing OPT_END()
x86: kvm: avoid constant-conversion warning
ACPI: fix false-positive -Wuninitialized warning
be2net: Signal that the device cannot transmit during reconfiguration
x86/apic: Silence -Wtype-limits compiler warnings
x86: math-emu: Hide clang warnings for 16-bit overflow
mm/cma.c: fail if fixed declaration can't be honored
lib/test_overflow.c: avoid tainting the kernel and fix wrap size
lib/test_string.c: avoid masking memset16/32/64 failures
coda: add error handling for fget
coda: fix build using bare-metal toolchain
uapi linux/coda_psdev.h: move upc_req definition from uapi to kernel side headers
drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings
ipc/mqueue.c: only perform resource calculation if user valid
mlxsw: spectrum_dcb: Configure DSCP map as the last rule is removed
xen/pv: Fix a boot up hang revealed by int3 self test
x86/kvm: Don't call kvm_spurious_fault() from .fixup
x86/paravirt: Fix callee-saved function ELF sizes
x86, boot: Remove multiple copy of static function sanitize_boot_params()
drm/nouveau: fix memory leak in nouveau_conn_reset()
kconfig: Clear "written" flag to avoid data loss
kbuild: initialize CLANG_FLAGS correctly in the top Makefile
Btrfs: fix incremental send failure after deduplication
Btrfs: fix race leading to fs corruption after transaction abort
mmc: dw_mmc: Fix occasional hang after tuning on eMMC
mmc: meson-mx-sdio: Fix misuse of GENMASK macro
gpiolib: fix incorrect IRQ requesting of an active-low lineevent
IB/hfi1: Fix Spectre v1 vulnerability
mtd: rawnand: micron: handle on-die "ECC-off" devices correctly
selinux: fix memory leak in policydb_init()
ALSA: hda: Fix 1-minute detection delay when i915 module is not available
mm: vmscan: check if mem cgroup is disabled or not before calling memcg slab shrinker
s390/dasd: fix endless loop after read unit address configuration
cgroup: kselftest: relax fs_spec checks
parisc: Fix build of compressed kernel even with debug enabled
drivers/perf: arm_pmu: Fix failure path in PM notifier
arm64: compat: Allow single-byte watchpoints on all addresses
arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG}
nbd: replace kill_bdev() with __invalidate_device() again
xen/swiotlb: fix condition for calling xen_destroy_contiguous_region()
IB/mlx5: Fix unreg_umr to ignore the mkey state
IB/mlx5: Use direct mkey destroy command upon UMR unreg failure
IB/mlx5: Move MRs to a kernel PD when freeing them to the MR cache
IB/mlx5: Fix clean_mr() to work in the expected order
IB/mlx5: Fix RSS Toeplitz setup to be aligned with the HW specification
IB/hfi1: Check for error on call to alloc_rsm_map_table
drm/i915/gvt: fix incorrect cache entry for guest page mapping
eeprom: at24: make spd world-readable again
ARC: enable uboot support unconditionally
objtool: Support GCC 9 cold subfunction naming scheme
gcc-9: properly declare the {pv,hv}clock_page storage
x86/vdso: Prevent segfaults due to hoisted vclock reads
scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA
x86/cpufeatures: Carve out CQM features retrieval
x86/cpufeatures: Combine word 11 and 12 into a new scattered features word
x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations
x86/speculation: Enable Spectre v1 swapgs mitigations
x86/entry/64: Use JMP instead of JMPQ
x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS
Documentation: Add swapgs description to the Spectre v1 documentation
Linux 4.19.65
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iceeabdb164657e0a616db618e6aa8445d56b0dc1
Ignore __printf() function attributes just as other __attribute__
strings are ignored.
Fixes this kernel-doc warning message:
include/kunit/kunit-stream.h:58: warning: Function parameter or member '2' not described in '__printf'
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit 0c5b6c28ed upstream.
Prior to this commit, starting nconfig, xconfig or gconfig, and saving
the .config file more than once caused data loss, where a .config file
that contained only comments would be written to disk starting from the
second save operation.
This bug manifests itself because the SYMBOL_WRITTEN flag is never
cleared after the first call to conf_write, and subsequent calls to
conf_write then skip all of the configuration symbols due to the
SYMBOL_WRITTEN flag being set.
This commit resolves this issue by clearing the SYMBOL_WRITTEN flag
from all symbols before conf_write returns.
Fixes: 8e2442a5f8 ("kconfig: fix missing choice values in auto.conf")
Cc: linux-stable <stable@vger.kernel.org> # 4.19+
Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
IMA will use the module_signature format for append signatures, so export
the relevant definitions and factor out the code which verifies that the
appended signature trailer is valid.
Also, create a CONFIG_MODULE_SIG_FORMAT option so that IMA can select it
and be able to use mod_check_sig() without having to depend on either
CONFIG_MODULE_SIG or CONFIG_MODULES.
s390 duplicated the definition of struct module_signature so now they can
use the new <linux/module_signature.h> header instead.
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Acked-by: Jessica Yu <jeyu@kernel.org>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
RELR is a relocation packing format for relative relocations.
The format is described in a generic-abi proposal:
https://groups.google.com/d/topic/generic-abi/bX460iggiKg/discussion
The LLD linker can be instructed to pack relocations in the RELR
format by passing the flag --pack-dyn-relocs=relr.
This patch adds a new config option, CONFIG_RELR. Enabling this option
instructs the linker to pack vmlinux's relative relocations in the RELR
format, and causes the kernel to apply the relocations at startup along
with the RELA relocations. RELA relocations still need to be applied
because the linker will emit RELA relative relocations if they are
unrepresentable in the RELR format (i.e. address not a multiple of 2).
Enabling CONFIG_RELR reduces the size of a defconfig kernel image
with CONFIG_RANDOMIZE_BASE by 3.5MB/16% uncompressed, or 550KB/5%
compressed (lz4).
Signed-off-by: Peter Collingbourne <pcc@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Prior to this commit, starting nconfig, xconfig or gconfig, and saving
the .config file more than once caused data loss, where a .config file
that contained only comments would be written to disk starting from the
second save operation.
This bug manifests itself because the SYMBOL_WRITTEN flag is never
cleared after the first call to conf_write, and subsequent calls to
conf_write then skip all of the configuration symbols due to the
SYMBOL_WRITTEN flag being set.
This commit resolves this issue by clearing the SYMBOL_WRITTEN flag
from all symbols before conf_write returns.
Fixes: 8e2442a5f8 ("kconfig: fix missing choice values in auto.conf")
Cc: linux-stable <stable@vger.kernel.org> # 4.19+
Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
While no uses in the kernel triggered this case, it was possible to have
a false negative where a struct contains other structs which contain only
function pointers because of unreachable code in is_pure_ops_struct().
Signed-off-by: Joonwon Kang <kjw1627@gmail.com>
Link: https://lore.kernel.org/r/20190727155841.GA13586@host
Fixes: 313dd1b629 ("gcc-plugins: Add the randstruct plugin")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
If the particular version of clang a user has doesn't enable
-Werror=unknown-warning-option by default, even though it is the
default[1], then make sure to pass the option to the Kconfig cc-option
command so that testing options from Kconfig files works properly.
Otherwise, depending on the default values setup in the clang toolchain
we will silently assume options such as -Wmaybe-uninitialized are
supported by clang, when they really aren't.
A compilation issue only started happening for me once commit
589834b3a0 ("kbuild: Add -Werror=unknown-warning-option to
CLANG_FLAGS") was applied on top of commit b303c6df80 ("kbuild:
compute false-positive -Wmaybe-uninitialized cases in Kconfig"). This
leads kbuild to try and test for the existence of the
-Wmaybe-uninitialized flag with the cc-option command in
scripts/Kconfig.include, and it doesn't see an error returned from the
option test so it sets the config value to Y. Then the Makefile tries to
pass the unknown option on the command line and
-Werror=unknown-warning-option catches the invalid option and breaks the
build. Before commit 589834b3a0 ("kbuild: Add
-Werror=unknown-warning-option to CLANG_FLAGS") the build works fine,
but any cc-option test of a warning option in Kconfig files silently
evaluates to true, even if the warning option flag isn't supported on
clang.
Note: This doesn't change cc-option usages in Makefiles because those
use a different rule that includes KBUILD_CFLAGS by default (see the
__cc-option command in scripts/Kbuild.incluide). The KBUILD_CFLAGS
variable already has the -Werror=unknown-warning-option flag set. Thanks
to Doug for pointing out the different rule.
[1] https://clang.llvm.org/docs/DiagnosticsReference.html#wunknown-warning-option
Cc: Peter Smith <peter.smith@linaro.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since commit ff9b45c55b ("kbuild: modpost: read modules.order instead
of $(MODVERDIR)/*.mod"), 'make vmlinux' emits a warning, like this:
$ make defconfig vmlinux
[ snip ]
LD vmlinux.o
cat: modules.order: No such file or directory
MODPOST vmlinux.o
MODINFO modules.builtin.modinfo
KSYM .tmp_kallsyms1.o
KSYM .tmp_kallsyms2.o
LD vmlinux
SORTEX vmlinux
SYSMAP System.map
When building only vmlinux, KBUILD_MODULES is not set. Hence, the
modules.order is not generated. For the vmlinux modpost, it is not
necessary at all.
Separate scripts/Makefile.modpost for the vmlinux/modules stages.
This works more efficiently because the vmlinux modpost does not
need to include .*.cmd files.
Fixes: ff9b45c55b ("kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
__modpost is a phony target. The dependency on FORCE is pointless.
All the objects have been built in the previous stage, so the
dependency on the objects are not necessary either.
Count the number of modules in a more straightforward way.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
KBUILD_EXTRA_SYMBOLS makes sense only when building external modules.
Moreover, the modpost sets 'external_module' if the -e option is given.
I replaced $(patsubst %, -e %,...) with simpler $(addprefix -e,...)
while I was here.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
If a build rule fails, the .DELETE_ON_ERROR special target removes the
target, but does nothing for the .*.cmd file, which might be corrupted.
So, .*.cmd files should be included only when the corresponding targets
exist.
Commit 392885ee82 ("kbuild: let fixdep directly write to .*.cmd
files") missed to fix up this file.
Fixes: 392885ee82 ("kbuild: let fixdep directly write to .*.cmd")
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Merge 4.19.63 into android-4.19
Changes in 4.19.63
hvsock: fix epollout hang from race condition
drm/panel: simple: Fix panel_simple_dsi_probe
iio: adc: stm32-dfsdm: manage the get_irq error case
iio: adc: stm32-dfsdm: missing error case during probe
staging: vt6656: use meaningful error code during buffer allocation
usb: core: hub: Disable hub-initiated U1/U2
tty: max310x: Fix invalid baudrate divisors calculator
pinctrl: rockchip: fix leaked of_node references
tty: serial: cpm_uart - fix init when SMC is relocated
drm/amd/display: Fill prescale_params->scale for RGB565
drm/amdgpu/sriov: Need to initialize the HDP_NONSURFACE_BAStE
drm/amd/display: Disable ABM before destroy ABM struct
drm/amdkfd: Fix a potential memory leak
drm/amdkfd: Fix sdma queue map issue
drm/edid: Fix a missing-check bug in drm_load_edid_firmware()
PCI: Return error if cannot probe VF
drm/bridge: tc358767: read display_props in get_modes()
drm/bridge: sii902x: pixel clock unit is 10kHz instead of 1kHz
gpu: host1x: Increase maximum DMA segment size
drm/crc-debugfs: User irqsafe spinlock in drm_crtc_add_crc_entry
drm/crc-debugfs: Also sprinkle irqrestore over early exits
memstick: Fix error cleanup path of memstick_init
tty/serial: digicolor: Fix digicolor-usart already registered warning
tty: serial: msm_serial: avoid system lockup condition
serial: 8250: Fix TX interrupt handling condition
drm/amd/display: Always allocate initial connector state state
drm/virtio: Add memory barriers for capset cache.
phy: renesas: rcar-gen2: Fix memory leak at error paths
drm/amd/display: fix compilation error
powerpc/pseries/mobility: prevent cpu hotplug during DT update
drm/rockchip: Properly adjust to a true clock in adjusted_mode
serial: imx: fix locking in set_termios()
tty: serial_core: Set port active bit in uart_port_activate
usb: gadget: Zero ffs_io_data
mmc: sdhci: sdhci-pci-o2micro: Check if controller supports 8-bit width
powerpc/pci/of: Fix OF flags parsing for 64bit BARs
drm/msm: Depopulate platform on probe failure
serial: mctrl_gpio: Check if GPIO property exisits before requesting it
PCI: sysfs: Ignore lockdep for remove attribute
i2c: stm32f7: fix the get_irq error cases
kbuild: Add -Werror=unknown-warning-option to CLANG_FLAGS
genksyms: Teach parser about 128-bit built-in types
PCI: xilinx-nwl: Fix Multi MSI data programming
iio: iio-utils: Fix possible incorrect mask calculation
powerpc/cacheflush: fix variable set but not used
powerpc/xmon: Fix disabling tracing while in xmon
recordmcount: Fix spurious mcount entries on powerpc
mfd: madera: Add missing of table registration
mfd: core: Set fwnode for created devices
mfd: arizona: Fix undefined behavior
mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk
mm/swap: fix release_pages() when releasing devmap pages
um: Silence lockdep complaint about mmap_sem
powerpc/4xx/uic: clear pending interrupt after irq type/pol change
RDMA/i40iw: Set queue pair state when being queried
serial: sh-sci: Terminate TX DMA during buffer flushing
serial: sh-sci: Fix TX DMA buffer flushing and workqueue races
IB/mlx5: Fixed reporting counters on 2nd port for Dual port RoCE
powerpc/mm: Handle page table allocation failures
IB/ipoib: Add child to parent list only if device initialized
arm64: assembler: Switch ESB-instruction with a vanilla nop if !ARM64_HAS_RAS
PCI: mobiveil: Fix PCI base address in MEM/IO outbound windows
PCI: mobiveil: Fix the Class Code field
kallsyms: exclude kasan local symbols on s390
PCI: mobiveil: Initialize Primary/Secondary/Subordinate bus numbers
PCI: mobiveil: Use the 1st inbound window for MEM inbound transactions
perf test mmap-thread-lookup: Initialize variable to suppress memory sanitizer warning
perf stat: Fix use-after-freed pointer detected by the smatch tool
perf top: Fix potential NULL pointer dereference detected by the smatch tool
perf session: Fix potential NULL pointer dereference found by the smatch tool
perf annotate: Fix dereferencing freed memory found by the smatch tool
perf hists browser: Fix potential NULL pointer dereference found by the smatch tool
RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
PCI: dwc: pci-dra7xx: Fix compilation when !CONFIG_GPIOLIB
powerpc/boot: add {get, put}_unaligned_be32 to xz_config.h
block: init flush rq ref count to 1
f2fs: avoid out-of-range memory access
mailbox: handle failed named mailbox channel request
dlm: check if workqueues are NULL before flushing/destroying
powerpc/eeh: Handle hugepages in ioremap space
block/bio-integrity: fix a memory leak bug
sh: prevent warnings when using iounmap
mm/kmemleak.c: fix check for softirq context
9p: pass the correct prototype to read_cache_page
mm/gup.c: mark undo_dev_pagemap as __maybe_unused
mm/gup.c: remove some BUG_ONs from get_gate_page()
memcg, fsnotify: no oom-kill for remote memcg charging
mm/mmu_notifier: use hlist_add_head_rcu()
proc: use down_read_killable mmap_sem for /proc/pid/smaps_rollup
proc: use down_read_killable mmap_sem for /proc/pid/pagemap
proc: use down_read_killable mmap_sem for /proc/pid/clear_refs
proc: use down_read_killable mmap_sem for /proc/pid/map_files
cxgb4: reduce kernel stack usage in cudbg_collect_mem_region()
proc: use down_read_killable mmap_sem for /proc/pid/maps
locking/lockdep: Fix lock used or unused stats error
mm: use down_read_killable for locking mmap_sem in access_remote_vm
locking/lockdep: Hide unused 'class' variable
usb: wusbcore: fix unbalanced get/put cluster_id
usb: pci-quirks: Correct AMD PLL quirk detection
btrfs: inode: Don't compress if NODATASUM or NODATACOW set
x86/sysfb_efi: Add quirks for some devices with swapped width and height
x86/speculation/mds: Apply more accurate check on hypervisor platform
binder: prevent transactions to context manager from its own process.
fpga-manager: altera-ps-spi: Fix build error
mei: me: add mule creek canyon (EHL) device ids
hpet: Fix division by zero in hpet_time_div()
ALSA: ac97: Fix double free of ac97_codec_device
ALSA: line6: Fix wrong altsetting for LINE6_PODHD500_1
ALSA: hda - Add a conexant codec entry to let mute led work
powerpc/xive: Fix loop exit-condition in xive_find_target_in_mask()
powerpc/tm: Fix oops on sigreturn on systems without TM
libnvdimm/bus: Stop holding nvdimm_bus_list_mutex over __nd_ioctl()
access: avoid the RCU grace period for the temporary subjective credentials
Linux 4.19.63
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic31529aa6fd283d16d6bfb182187a9402a4db44f
[ Upstream commit 33177f01ca ]
gcc asan instrumentation emits the following sequence to store frame pc
when the kernel is built with CONFIG_RELOCATABLE:
debug/vsprintf.s:
.section .data.rel.ro.local,"aw"
.align 8
.LC3:
.quad .LASANPC4826@GOTOFF
.text
.align 8
.type number, @function
number:
.LASANPC4826:
and in case reloc is issued for LASANPC label it also gets into .symtab
with the same address as actual function symbol:
$ nm -n vmlinux | grep 0000000001397150
0000000001397150 t .LASANPC4826
0000000001397150 t number
In the end kernel backtraces are almost unreadable:
[ 143.748476] Call Trace:
[ 143.748484] ([<000000002da3e62c>] .LASANPC2671+0x114/0x190)
[ 143.748492] [<000000002eca1a58>] .LASANPC2612+0x110/0x160
[ 143.748502] [<000000002de9d830>] print_address_description+0x80/0x3b0
[ 143.748511] [<000000002de9dd64>] __kasan_report+0x15c/0x1c8
[ 143.748521] [<000000002ecb56d4>] strrchr+0x34/0x60
[ 143.748534] [<000003ff800a9a40>] kasan_strings+0xb0/0x148 [test_kasan]
[ 143.748547] [<000003ff800a9bba>] kmalloc_tests_init+0xe2/0x528 [test_kasan]
[ 143.748555] [<000000002da2117c>] .LASANPC4069+0x354/0x748
[ 143.748563] [<000000002dbfbb16>] do_init_module+0x136/0x3b0
[ 143.748571] [<000000002dbff3f4>] .LASANPC3191+0x2164/0x25d0
[ 143.748580] [<000000002dbffc4c>] .LASANPC3196+0x184/0x1b8
[ 143.748587] [<000000002ecdf2ec>] system_call+0xd8/0x2d8
Since LASANPC labels are not even unique and get into .symtab only due
to relocs filter them out in kallsyms.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 80e5302e4b ]
An impending change to enable HAVE_C_RECORDMCOUNT on powerpc leads to
warnings such as the following:
# modprobe kprobe_example
ftrace-powerpc: Not expected bl: opcode is 3c4c0001
WARNING: CPU: 0 PID: 227 at kernel/trace/ftrace.c:2001 ftrace_bug+0x90/0x318
Modules linked in:
CPU: 0 PID: 227 Comm: modprobe Not tainted 5.2.0-rc6-00678-g1c329100b942 #2
NIP: c000000000264318 LR: c00000000025d694 CTR: c000000000f5cd30
REGS: c000000001f2b7b0 TRAP: 0700 Not tainted (5.2.0-rc6-00678-g1c329100b942)
MSR: 900000010282b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]> CR: 28228222 XER: 00000000
CFAR: c0000000002642fc IRQMASK: 0
<snip>
NIP [c000000000264318] ftrace_bug+0x90/0x318
LR [c00000000025d694] ftrace_process_locs+0x4f4/0x5e0
Call Trace:
[c000000001f2ba40] [0000000000000004] 0x4 (unreliable)
[c000000001f2bad0] [c00000000025d694] ftrace_process_locs+0x4f4/0x5e0
[c000000001f2bb90] [c00000000020ff10] load_module+0x25b0/0x30c0
[c000000001f2bd00] [c000000000210cb0] sys_finit_module+0xc0/0x130
[c000000001f2be20] [c00000000000bda4] system_call+0x5c/0x70
Instruction dump:
419e0018 2f83ffff 419e00bc 2f83ffea 409e00cc 4800001c 0fe00000 3c62ff96
39000001 39400000 386386d0 480000c4 <0fe00000> 3ce20003 39000001 3c62ff96
---[ end trace 4c438d5cebf78381 ]---
ftrace failed to modify
[<c0080000012a0008>] 0xc0080000012a0008
actual: 01:00:4c:3c
Initializing ftrace call sites
ftrace record flags: 2000000
(0)
expected tramp: c00000000006af4c
Looking at the relocation records in __mcount_loc shows a few spurious
entries:
RELOCATION RECORDS FOR [__mcount_loc]:
OFFSET TYPE VALUE
0000000000000000 R_PPC64_ADDR64 .text.unlikely+0x0000000000000008
0000000000000008 R_PPC64_ADDR64 .text.unlikely+0x0000000000000014
0000000000000010 R_PPC64_ADDR64 .text.unlikely+0x0000000000000060
0000000000000018 R_PPC64_ADDR64 .text.unlikely+0x00000000000000b4
0000000000000020 R_PPC64_ADDR64 .init.text+0x0000000000000008
0000000000000028 R_PPC64_ADDR64 .init.text+0x0000000000000014
The first entry in each section is incorrect. Looking at the
relocation records, the spurious entries correspond to the
R_PPC64_ENTRY records:
RELOCATION RECORDS FOR [.text.unlikely]:
OFFSET TYPE VALUE
0000000000000000 R_PPC64_REL64 .TOC.-0x0000000000000008
0000000000000008 R_PPC64_ENTRY *ABS*
0000000000000014 R_PPC64_REL24 _mcount
<snip>
The problem is that we are not validating the return value from
get_mcountsym() in sift_rel_mcount(). With this entry, mcountsym is 0,
but Elf_r_sym(relp) also ends up being 0. Fix this by ensuring
mcountsym is valid before processing the entry.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit a222061b85 ]
__uint128_t crops up in a few files that export symbols to modules, so
teach genksyms about it and the other GCC built-in 128-bit integer types
so that we don't end up skipping the CRC generation for some symbols due
to the parser failing to spot them:
| WARNING: EXPORT symbol "kernel_neon_begin" [vmlinux] version
| generation failed, symbol will not be versioned.
| ld: arch/arm64/kernel/fpsimd.o: relocation R_AARCH64_ABS32 against
| `__crc_kernel_neon_begin' can not be used when making a shared
| object
| ld: arch/arm64/kernel/fpsimd.o:(.data+0x0): dangerous relocation:
| unsupported relocation
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Add the missing GPLv2 SPDX license identifier.
It appears this single file was missing from 7f904d7e1f ("treewide:
Replace GPLv2 boilerplate/reference with SPDX - rule 505"), which
addressed all other files in scripts/coccinelle. Hence I added
GPL-2.0-only consitently with the mentioned patch.
Cc: linux-spdx@vger.kernel.org
Cc: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a coccinelle script to check for the usage of dev_err() after a call
to platform_get_irq{,_byname}() as it's redundant now that the function
already prints an error when it fails.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Markus Elfring <Markus.Elfring@web.de>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20190730053845.126834-4-swboyd@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
UAPI headers licensed under GPL are supposed to have exception
"WITH Linux-syscall-note" so that they can be included into non-GPL
user space application code.
Unfortunately, people often miss to add it. Break 'make headers'
when any of exported headers lacks the exception note so that the
0-day bot can easily catch it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This is unused since commit 9f69a496f1 ("kbuild: split out *.mod out
of {single,multi}-used-m rules").
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Running gen_compile_commands.py after building the kernel with
allnoconfig gave this:
$ ./scripts/gen_compile_commands.py
WARNING: Found 449 entries. Have you compiled the kernel?
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Commit 415008af32 ("docs-rst: convert lsm from DocBook to ReST")
removed the last users of this macro.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Merge 4.19.61 into android-4.19
Changes in 4.19.61
MIPS: ath79: fix ar933x uart parity mode
MIPS: fix build on non-linux hosts
arm64/efi: Mark __efistub_stext_offset as an absolute symbol explicitly
scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported
dmaengine: imx-sdma: fix use-after-free on probe error path
wil6210: fix potential out-of-bounds read
ath10k: Do not send probe response template for mesh
ath9k: Check for errors when reading SREV register
ath6kl: add some bounds checking
ath10k: add peer id check in ath10k_peer_find_by_id
wil6210: fix spurious interrupts in 3-msi
ath: DFS JP domain W56 fixed pulse type 3 RADAR detection
regmap: debugfs: Fix memory leak in regmap_debugfs_init
batman-adv: fix for leaked TVLV handler.
media: dvb: usb: fix use after free in dvb_usb_device_exit
media: spi: IR LED: add missing of table registration
crypto: talitos - fix skcipher failure due to wrong output IV
media: ov7740: avoid invalid framesize setting
media: marvell-ccic: fix DMA s/g desc number calculation
media: vpss: fix a potential NULL pointer dereference
media: media_device_enum_links32: clean a reserved field
net: stmmac: dwmac1000: Clear unused address entries
net: stmmac: dwmac4/5: Clear unused address entries
qed: Set the doorbell address correctly
signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig
af_key: fix leaks in key_pol_get_resp and dump_sp.
xfrm: Fix xfrm sel prefix length validation
fscrypt: clean up some BUG_ON()s in block encryption/decryption
perf annotate TUI browser: Do not use member from variable within its own initialization
media: mc-device.c: don't memset __user pointer contents
media: saa7164: fix remove_proc_entry warning
media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails.
net: phy: Check against net_device being NULL
crypto: talitos - properly handle split ICV.
crypto: talitos - Align SEC1 accesses to 32 bits boundaries.
tua6100: Avoid build warnings.
batman-adv: Fix duplicated OGMs on NETDEV_UP
locking/lockdep: Fix merging of hlocks with non-zero references
media: wl128x: Fix some error handling in fm_v4l2_init_video_device()
net: hns3: set ops to null when unregister ad_dev
cpupower : frequency-set -r option misses the last cpu in related cpu list
arm64: mm: make CONFIG_ZONE_DMA32 configurable
perf jvmti: Address gcc string overflow warning for strncpy()
net: stmmac: dwmac4: fix flow control issue
net: stmmac: modify default value of tx-frames
crypto: inside-secure - do not rely on the hardware last bit for result descriptors
net: fec: Do not use netdev messages too early
net: axienet: Fix race condition causing TX hang
s390/qdio: handle PENDING state for QEBSM devices
RAS/CEC: Fix pfn insertion
net: sfp: add mutex to prevent concurrent state checks
ipset: Fix memory accounting for hash types on resize
perf cs-etm: Properly set the value of 'old' and 'head' in snapshot mode
perf test 6: Fix missing kvm module load for s390
perf report: Fix OOM error in TUI mode on s390
irqchip/meson-gpio: Add support for Meson-G12A SoC
media: uvcvideo: Fix access to uninitialized fields on probe error
media: fdp1: Support M3N and E3 platforms
iommu: Fix a leak in iommu_insert_resv_region
gpio: omap: fix lack of irqstatus_raw0 for OMAP4
gpio: omap: ensure irq is enabled before wakeup
regmap: fix bulk writes on paged registers
bpf: silence warning messages in core
media: s5p-mfc: fix reading min scratch buffer size on MFC v6/v7
selinux: fix empty write to keycreate file
x86/cpu: Add Ice Lake NNPI to Intel family
ASoC: meson: axg-tdm: fix sample clock inversion
rcu: Force inlining of rcu_read_lock()
x86/cpufeatures: Add FDP_EXCPTN_ONLY and ZERO_FCS_FDS
qed: iWARP - Fix tc for MPA ll2 connection
net: hns3: fix for skb leak when doing selftest
block: null_blk: fix race condition for null_del_dev
blkcg, writeback: dead memcgs shouldn't contribute to writeback ownership arbitration
xfrm: fix sa selector validation
sched/core: Add __sched tag for io_schedule()
sched/fair: Fix "runnable_avg_yN_inv" not used warnings
perf/x86/intel/uncore: Handle invalid event coding for free-running counter
x86/atomic: Fix smp_mb__{before,after}_atomic()
perf evsel: Make perf_evsel__name() accept a NULL argument
vhost_net: disable zerocopy by default
ipoib: correcly show a VF hardware address
x86/cacheinfo: Fix a -Wtype-limits warning
blk-iolatency: only account submitted bios
ACPICA: Clear status of GPEs on first direct enable
EDAC/sysfs: Fix memory leak when creating a csrow object
nvme: fix possible io failures when removing multipathed ns
nvme-pci: properly report state change failure in nvme_reset_work
nvme-pci: set the errno on ctrl state change error
lightnvm: pblk: fix freeing of merged pages
arm64: Do not enable IRQs for ct_user_exit
ipsec: select crypto ciphers for xfrm_algo
ipvs: defer hook registration to avoid leaks
media: s5p-mfc: Make additional clocks optional
media: i2c: fix warning same module names
ntp: Limit TAI-UTC offset
timer_list: Guard procfs specific code
acpi/arm64: ignore 5.1 FADTs that are reported as 5.0
media: coda: fix mpeg2 sequence number handling
media: coda: fix last buffer handling in V4L2_ENC_CMD_STOP
media: coda: increment sequence offset for the last returned frame
media: vimc: cap: check v4l2_fill_pixfmt return value
media: hdpvr: fix locking and a missing msleep
net: stmmac: sun8i: force select external PHY when no internal one
rtlwifi: rtl8192cu: fix error handle when usb probe failed
mt7601u: do not schedule rx_tasklet when the device has been disconnected
x86/build: Add 'set -e' to mkcapflags.sh to delete broken capflags.c
mt7601u: fix possible memory leak when the device is disconnected
ipvs: fix tinfo memory leak in start_sync_thread
ath10k: add missing error handling
ath10k: fix PCIE device wake up failed
perf tools: Increase MAX_NR_CPUS and MAX_CACHES
ASoC: Intel: hdac_hdmi: Set ops to NULL on remove
libata: don't request sense data on !ZAC ATA devices
clocksource/drivers/exynos_mct: Increase priority over ARM arch timer
xsk: Properly terminate assignment in xskq_produce_flush_desc
rslib: Fix decoding of shortened codes
rslib: Fix handling of of caller provided syndrome
ixgbe: Check DDM existence in transceiver before access
crypto: serpent - mark __serpent_setkey_sbox noinline
crypto: asymmetric_keys - select CRYPTO_HASH where needed
wil6210: drop old event after wmi_call timeout
EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec
bcache: check CACHE_SET_IO_DISABLE in allocator code
bcache: check CACHE_SET_IO_DISABLE bit in bch_journal()
bcache: acquire bch_register_lock later in cached_dev_free()
bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush()
bcache: fix potential deadlock in cached_def_free()
net: hns3: fix a -Wformat-nonliteral compile warning
net: hns3: add some error checking in hclge_tm module
ath10k: destroy sdio workqueue while remove sdio module
net: mvpp2: prs: Don't override the sign bit in SRAM parser shift
igb: clear out skb->tstamp after reading the txtime
iwlwifi: mvm: Drop large non sta frames
bpf: fix uapi bpf_prog_info fields alignment
perf stat: Make metric event lookup more robust
perf stat: Fix group lookup for metric group
bnx2x: Prevent ptp_task to be rescheduled indefinitely
net: usb: asix: init MAC address buffers
rxrpc: Fix oops in tracepoint
bpf, libbpf, smatch: Fix potential NULL pointer dereference
selftests: bpf: fix inlines in test_lwt_seg6local
bonding: validate ip header before check IPPROTO_IGMP
gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants
tools: bpftool: Fix json dump crash on powerpc
Bluetooth: hci_bcsp: Fix memory leak in rx_skb
Bluetooth: Add new 13d3:3491 QCA_ROME device
Bluetooth: Add new 13d3:3501 QCA_ROME device
Bluetooth: 6lowpan: search for destination address in all peers
perf tests: Fix record+probe_libc_inet_pton.sh for powerpc64
Bluetooth: Check state in l2cap_disconnect_rsp
gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable()
Bluetooth: validate BLE connection interval updates
gtp: fix suspicious RCU usage
gtp: fix Illegal context switch in RCU read-side critical section.
gtp: fix use-after-free in gtp_encap_destroy()
gtp: fix use-after-free in gtp_newlink()
net: mvmdio: defer probe of orion-mdio if a clock is not ready
iavf: fix dereference of null rx_buffer pointer
floppy: fix div-by-zero in setup_format_params
floppy: fix out-of-bounds read in next_valid_format
floppy: fix invalid pointer dereference in drive_name
floppy: fix out-of-bounds read in copy_buffer
xen: let alloc_xenballooned_pages() fail if not enough memory free
scsi: NCR5380: Reduce goto statements in NCR5380_select()
scsi: NCR5380: Always re-enable reselection interrupt
Revert "scsi: ncr5380: Increase register polling limit"
scsi: core: Fix race on creating sense cache
scsi: megaraid_sas: Fix calculation of target ID
scsi: mac_scsi: Increase PIO/PDMA transfer length threshold
scsi: mac_scsi: Fix pseudo DMA implementation, take 2
crypto: ghash - fix unaligned memory access in ghash_setkey()
crypto: ccp - Validate the the error value used to index error messages
crypto: arm64/sha1-ce - correct digest for empty data in finup
crypto: arm64/sha2-ce - correct digest for empty data in finup
crypto: chacha20poly1305 - fix atomic sleep when using async algorithm
crypto: crypto4xx - fix AES CTR blocksize value
crypto: crypto4xx - fix blocksize for cfb and ofb
crypto: crypto4xx - block ciphers should only accept complete blocks
crypto: ccp - memset structure fields to zero before reuse
crypto: ccp/gcm - use const time tag comparison.
crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe
Revert "bcache: set CACHE_SET_IO_DISABLE in bch_cached_dev_error()"
bcache: Revert "bcache: fix high CPU occupancy during journal"
bcache: Revert "bcache: free heap cache_set->flush_btree in bch_journal_free"
bcache: ignore read-ahead request failure on backing device
bcache: fix mistaken sysfs entry for io_error counter
bcache: destroy dc->writeback_write_wq if failed to create dc->writeback_thread
Input: gtco - bounds check collection indent level
Input: alps - don't handle ALPS cs19 trackpoint-only device
Input: synaptics - whitelist Lenovo T580 SMBus intertouch
Input: alps - fix a mismatch between a condition check and its comment
regulator: s2mps11: Fix buck7 and buck8 wrong voltages
arm64: tegra: Update Jetson TX1 GPU regulator timings
iwlwifi: pcie: don't service an interrupt that was masked
iwlwifi: pcie: fix ALIVE interrupt handling for gen2 devices w/o MSI-X
iwlwifi: don't WARN when calling iwl_get_shared_mem_conf with RF-Kill
iwlwifi: fix RF-Kill interrupt while FW load for gen2 devices
NFSv4: Handle the special Linux file open access mode
pnfs/flexfiles: Fix PTR_ERR() dereferences in ff_layout_track_ds_error
pNFS: Fix a typo in pnfs_update_layout
pnfs: Fix a problem where we gratuitously start doing I/O through the MDS
lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE
ASoC: dapm: Adapt for debugfs API change
raid5-cache: Need to do start() part job after adding journal device
ALSA: seq: Break too long mutex context in the write loop
ALSA: hda/realtek - Fixed Headphone Mic can't record on Dell platform
ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine
media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom()
media: coda: Remove unbalanced and unneeded mutex unlock
media: videobuf2-core: Prevent size alignment wrapping buffer size to 0
media: videobuf2-dma-sg: Prevent size from overflowing
KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed
arm64: tegra: Fix AGIC register range
fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes.
kconfig: fix missing choice values in auto.conf
drm/nouveau/i2c: Enable i2c pads & busses during preinit
padata: use smp_mb in padata_reorder to avoid orphaned padata jobs
dm zoned: fix zone state management race
xen/events: fix binding user event channels to cpus
9p/xen: Add cleanup path in p9_trans_xen_init
9p/virtio: Add cleanup path in p9_virtio_init
x86/boot: Fix memory leak in default_get_smp_config()
perf/x86/intel: Fix spurious NMI on fixed counter
perf/x86/amd/uncore: Do not set 'ThreadMask' and 'SliceMask' for non-L3 PMCs
perf/x86/amd/uncore: Set the thread mask for F17h L3 PMCs
drm/edid: parse CEA blocks embedded in DisplayID
intel_th: pci: Add Ice Lake NNPI support
PCI: hv: Fix a use-after-free bug in hv_eject_device_work()
PCI: Do not poll for PME if the device is in D3cold
PCI: qcom: Ensure that PERST is asserted for at least 100 ms
Btrfs: fix data loss after inode eviction, renaming it, and fsync it
Btrfs: fix fsync not persisting dentry deletions due to inode evictions
Btrfs: add missing inode version, ctime and mtime updates when punching hole
IB/mlx5: Report correctly tag matching rendezvous capability
HID: wacom: generic: only switch the mode on devices with LEDs
HID: wacom: generic: Correct pad syncing
HID: wacom: correct touch resolution x/y typo
libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields
coda: pass the host file in vma->vm_file on mmap
include/asm-generic/bug.h: fix "cut here" for WARN_ON for __WARN_TAINT architectures
xfs: fix pagecache truncation prior to reflink
xfs: flush removing page cache in xfs_reflink_remap_prep
xfs: don't overflow xattr listent buffer
xfs: rename m_inotbt_nores to m_finobt_nores
xfs: don't ever put nlink > 0 inodes on the unlinked list
xfs: reserve blocks for ifree transaction during log recovery
xfs: fix reporting supported extra file attributes for statx()
xfs: serialize unaligned dio writes against all other dio writes
xfs: abort unaligned nowait directio early
gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM
crypto: caam - limit output IV to CBC to work around CTR mode DMA issue
parisc: Ensure userspace privilege for ptraced processes in regset functions
parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1
powerpc/32s: fix suspend/resume when IBATs 4-7 are used
powerpc/watchpoint: Restore NV GPRs while returning from exception
powerpc/powernv/npu: Fix reference leak
powerpc/pseries: Fix oops in hotplug memory notifier
mmc: sdhci-msm: fix mutex while in spinlock
eCryptfs: fix a couple type promotion bugs
mtd: rawnand: mtk: Correct low level time calculation of r/w cycle
mtd: spinand: read returns badly if the last page has bitflips
intel_th: msu: Fix single mode with disabled IOMMU
Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug
usb: Handle USB3 remote wakeup for LPM enabled devices correctly
blk-throttle: fix zero wait time for iops throttled group
blk-iolatency: clear use_delay when io.latency is set to zero
blkcg: update blkcg_print_stat() to handle larger outputs
net: mvmdio: allow up to four clocks to be specified for orion-mdio
dt-bindings: allow up to four clocks for orion-mdio
dm bufio: fix deadlock with loop device
Linux 4.19.61
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2f565111b1c16f369fa86e0481527fcc6357fe1b
commit 8e2442a5f8 upstream.
Since commit 00c864f890 ("kconfig: allow all config targets to write
auto.conf if missing"), Kconfig creates include/config/auto.conf in the
defconfig stage when it is missing.
Joonas Kylmälä reported incorrect auto.conf generation under some
circumstances.
To reproduce it, apply the following diff:
| --- a/arch/arm/configs/imx_v6_v7_defconfig
| +++ b/arch/arm/configs/imx_v6_v7_defconfig
| @@ -345,14 +345,7 @@ CONFIG_USB_CONFIGFS_F_MIDI=y
| CONFIG_USB_CONFIGFS_F_HID=y
| CONFIG_USB_CONFIGFS_F_UVC=y
| CONFIG_USB_CONFIGFS_F_PRINTER=y
| -CONFIG_USB_ZERO=m
| -CONFIG_USB_AUDIO=m
| -CONFIG_USB_ETH=m
| -CONFIG_USB_G_NCM=m
| -CONFIG_USB_GADGETFS=m
| -CONFIG_USB_FUNCTIONFS=m
| -CONFIG_USB_MASS_STORAGE=m
| -CONFIG_USB_G_SERIAL=m
| +CONFIG_USB_FUNCTIONFS=y
| CONFIG_MMC=y
| CONFIG_MMC_SDHCI=y
| CONFIG_MMC_SDHCI_PLTFM=y
And then, run:
$ make ARCH=arm mrproper imx_v6_v7_defconfig
You will see CONFIG_USB_FUNCTIONFS=y is correctly contained in the
.config, but not in the auto.conf.
Please note drivers/usb/gadget/legacy/Kconfig is included from a choice
block in drivers/usb/gadget/Kconfig. So USB_FUNCTIONFS is a choice value.
This is probably a similar situation described in commit beaaddb625
("kconfig: tests: test defconfig when two choices interact").
When sym_calc_choice() is called, the choice symbol forgets the
SYMBOL_DEF_USER unless all of its choice values are explicitly set by
the user.
The choice symbol is given just one chance to recall it because
set_all_choice_values() is called if SYMBOL_NEED_SET_CHOICE_VALUES
is set.
When sym_calc_choice() is called again, the choice symbol forgets it
forever, since SYMBOL_NEED_SET_CHOICE_VALUES is a one-time aid.
Hence, we cannot call sym_clear_all_valid() again and again.
It is crazy to repeat set and unset of internal flags. However, we
cannot simply get rid of "sym->flags &= flags | ~SYMBOL_DEF_USER;"
Doing so would re-introduce the problem solved by commit 5d09598d48
("kconfig: fix new choices being skipped upon config update").
To work around the issue, conf_write_autoconf() stopped calling
sym_clear_all_valid().
conf_write() must be changed accordingly. Currently, it clears
SYMBOL_WRITE after the symbol is written into the .config file. This
is needed to prevent it from writing the same symbol multiple times in
case the symbol is declared in two or more locations. I added the new
flag SYMBOL_WRITTEN, to track the symbols that have been written.
Anyway, this is a cheesy workaround in order to suppress the issue
as far as defconfig is concerned.
Handling of choices is totally broken. sym_clear_all_valid() is called
every time a user touches a symbol from the GUI interface. To reproduce
it, just add a new symbol drivers/usb/gadget/legacy/Kconfig, then touch
around unrelated symbols from menuconfig. USB_FUNCTIONFS will disappear
from the .config file.
I added the Fixes tag since it is more fatal than before. But, this
has been broken since long long time before, and still it is.
We should take a closer look to fix this correctly somehow.
Fixes: 00c864f890 ("kconfig: allow all config targets to write auto.conf if missing")
Cc: linux-stable <stable@vger.kernel.org> # 4.19+
Reported-by: Joonas Kylmälä <joonas.kylmala@iki.fi>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Joonas Kylmälä <joonas.kylmala@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- match the directory structure of the linux-libc-dev package to that of
Debian-based distributions
- fix incorrect include/config/auto.conf generation when Kconfig creates
it along with the .config file
- remove misleading $(AS) from documents
- clean up precious tag files by distclean instead of mrproper
- add a new coccinelle patch for devm_platform_ioremap_resource migration
- refactor module-related scripts to read modules.order instead of
$(MODVERDIR)/*.mod files to get the list of created modules
- remove MODVERDIR
- update list of header compile-test
- add -fcf-protection=none flag to avoid conflict with the retpoline
flags when CONFIG_RETPOLINE=y
- misc cleanups
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Merge tag 'kbuild-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- match the directory structure of the linux-libc-dev package to that
of Debian-based distributions
- fix incorrect include/config/auto.conf generation when Kconfig
creates it along with the .config file
- remove misleading $(AS) from documents
- clean up precious tag files by distclean instead of mrproper
- add a new coccinelle patch for devm_platform_ioremap_resource
migration
- refactor module-related scripts to read modules.order instead of
$(MODVERDIR)/*.mod files to get the list of created modules
- remove MODVERDIR
- update list of header compile-test
- add -fcf-protection=none flag to avoid conflict with the retpoline
flags when CONFIG_RETPOLINE=y
- misc cleanups
* tag 'kbuild-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
kbuild: add -fcf-protection=none when using retpoline flags
kbuild: update compile-test header list for v5.3-rc1
kbuild: split out *.mod out of {single,multi}-used-m rules
kbuild: remove 'prepare1' target
kbuild: remove the first line of *.mod files
kbuild: create *.mod with full directory path and remove MODVERDIR
kbuild: export_report: read modules.order instead of .tmp_versions/*.mod
kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod
kbuild: modsign: read modules.order instead of $(MODVERDIR)/*.mod
kbuild: modinst: read modules.order instead of $(MODVERDIR)/*.mod
scsi: remove pointless $(MODVERDIR)/$(obj)/53c700.ver
kbuild: remove duplication from modules.order in sub-directories
kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}
kbuild: do not create empty modules.order in the prepare stage
coccinelle: api: add devm_platform_ioremap_resource script
kbuild: compile-test headers listed in header-test-m as well
kbuild: remove unused hostcc-option
kbuild: remove tag files by distclean instead of mrproper
kbuild: add --hash-style= and --build-id unconditionally
kbuild: get rid of misleading $(AS) from documents
...
Currently, *.mod is created as a side-effect of obj-m.
Split out *.mod as a dedicated build rule, which allows to unify
the %.c -> %.o rule, and remove the single-used-m rule.
This also makes the incremental build of allmodconfig faster because
it saves $(NM) invocation when there is no change in the module.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The current format of *.mod is like this:
line 1: directory path to the .ko file
line 2: a list of objects linked into this module
line 3: unresolved symbols (only when CONFIG_TRIM_UNUSED_KSYMS=y)
Now that *.mod and *.ko are created in the same directory, the line 1
provides no valuable information. It can be derived by replacing the
extension .mod with .ko. In fact, nobody uses the first line any more.
Cut down the first line.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
While descending directories, Kbuild produces objects for modules,
but do not link final *.ko files; it is done in the modpost.
To keep track of modules, Kbuild creates a *.mod file in $(MODVERDIR)
for every module it is building. Some post-processing steps read the
necessary information from *.mod files. This avoids descending into
directories again. This mechanism was introduced in 2003 or so.
Later, commit 551559e13a ("kbuild: implement modules.order") added
modules.order. So, we can simply read it out to know all the modules
with directory paths. This is easier than parsing the first line of
*.mod files.
$(MODVERDIR) has a flat directory structure, that is, *.mod files
are named only with base names. This is based on the assumption that
the module name is unique across the tree. This assumption is really
fragile.
Stephen Rothwell reported a race condition caused by a module name
conflict:
https://lkml.org/lkml/2019/5/13/991
In parallel building, two different threads could write to the same
$(MODVERDIR)/*.mod simultaneously.
Non-unique module names are the source of all kind of troubles, hence
commit 3a48a91901 ("kbuild: check uniqueness of module names")
introduced a new checker script.
However, it is still fragile in the build system point of view because
this race happens before scripts/modules-check.sh is invoked. If it
happens again, the modpost will emit unclear error messages.
To fix this issue completely, create *.mod with full directory path
so that two threads never attempt to write to the same file.
$(MODVERDIR) is no longer needed.
Since modules with directory paths are listed in modules.order, Kbuild
is still able to find *.mod files without additional descending.
I also killed cmd_secanalysis; scripts/mod/sumversion.c computes MD4 hash
for modules with MODULE_VERSION(). When CONFIG_DEBUG_SECTION_MISMATCH=y,
it occurs not only in the modpost stage, but also during directory
descending, where sumversion.c may parse stale *.mod files. It would emit
'No such file or directory' warning when an object consisting a module is
renamed, or when a single-obj module is turned into a multi-obj module or
vice versa.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Towards the goal of removing MODVERDIR aka .tmp_versions, read out
modules.order to get the list of modules to be processed. This is
simpler than parsing *.mod files in .tmp_versions.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Towards the goal of removing MODVERDIR, read out modules.order to get
the list of modules to be processed. This is simpler than parsing *.mod
files in $(MODVERDIR).
For external modules, $(KBUILD_EXTMOD)/modules.order should be read.
I removed the single target %.ko from the top Makefile. To make sure
modpost works correctly, vmlinux and the other modules must be built.
You cannot build a particular .ko file alone.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Merge more updates from Andrew Morton:
"VM:
- z3fold fixes and enhancements by Henry Burns and Vitaly Wool
- more accurate reclaimed slab caches calculations by Yafang Shao
- fix MAP_UNINITIALIZED UAPI symbol to not depend on config, by
Christoph Hellwig
- !CONFIG_MMU fixes by Christoph Hellwig
- new novmcoredd parameter to omit device dumps from vmcore, by
Kairui Song
- new test_meminit module for testing heap and pagealloc
initialization, by Alexander Potapenko
- ioremap improvements for huge mappings, by Anshuman Khandual
- generalize kprobe page fault handling, by Anshuman Khandual
- device-dax hotplug fixes and improvements, by Pavel Tatashin
- enable synchronous DAX fault on powerpc, by Aneesh Kumar K.V
- add pte_devmap() support for arm64, by Robin Murphy
- unify locked_vm accounting with a helper, by Daniel Jordan
- several misc fixes
core/lib:
- new typeof_member() macro including some users, by Alexey Dobriyan
- make BIT() and GENMASK() available in asm, by Masahiro Yamada
- changed LIST_POISON2 on x86_64 to 0xdead000000000122 for better
code generation, by Alexey Dobriyan
- rbtree code size optimizations, by Michel Lespinasse
- convert struct pid count to refcount_t, by Joel Fernandes
get_maintainer.pl:
- add --no-moderated switch to skip moderated ML's, by Joe Perches
misc:
- ptrace PTRACE_GET_SYSCALL_INFO interface
- coda updates
- gdb scripts, various"
[ Using merge message suggestion from Vlastimil Babka, with some editing - Linus ]
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (100 commits)
fs/select.c: use struct_size() in kmalloc()
mm: add account_locked_vm utility function
arm64: mm: implement pte_devmap support
mm: introduce ARCH_HAS_PTE_DEVMAP
mm: clean up is_device_*_page() definitions
mm/mmap: move common defines to mman-common.h
mm: move MAP_SYNC to asm-generic/mman-common.h
device-dax: "Hotremove" persistent memory that is used like normal RAM
mm/hotplug: make remove_memory() interface usable
device-dax: fix memory and resource leak if hotplug fails
include/linux/lz4.h: fix spelling and copy-paste errors in documentation
ipc/mqueue.c: only perform resource calculation if user valid
include/asm-generic/bug.h: fix "cut here" for WARN_ON for __WARN_TAINT architectures
scripts/gdb: add helpers to find and list devices
scripts/gdb: add lx-genpd-summary command
drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
kernel/pid.c: convert struct pid count to refcount_t
drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings
select: shift restore_saved_sigmask_unless() into poll_select_copy_remaining()
select: change do_poll() to return -ERESTARTNOHAND rather than -EINTR
...
Towards the goal of removing MODVERDIR, read out modules.order to get
the list of modules to be signed. This is simpler than parsing *.mod
files in $(MODVERDIR).
The modules_sign target is only supported for in-kernel modules.
So, this commit does not take care of external modules.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Towards the goal of removing MODVERDIR, read out modules.order to get
the list of modules to be installed. This is simpler than parsing *.mod
files in $(MODVERDIR).
For external modules, $(KBUILD_EXTMOD)/modules.order should be read.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, only the top-level modules.order drops duplicated entries.
The modules.order files in sub-directories potentially contain
duplication. To list out the paths of all modules, I want to use
modules.order instead of parsing *.mod files in $(MODVERDIR).
To achieve this, I want to rip off duplication from modules.order
of external modules too.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Removing the 'kernel/' prefix will make our life easier because we can
simply do 'cat modules.order' to get all built modules with full paths.
Currently, we parse the first line of '*.mod' files in $(MODVERDIR).
Since we have duplicated functionality here, I plan to remove MODVERDIR
entirely.
In fact, modules.order is generated also for external modules in a
broken format. It adds the 'kernel/' prefix to the absolute path of
the module, like this:
kernel//path/to/your/external/module/foo.ko
This is fine for now since modules.order is not used for external
modules. However, I want to sanitize the format everywhere towards
the goal of removing MODVERDIR.
We cannot change the format of installed module.{order,builtin}.
So, 'make modules_install' will add the 'kernel/' prefix while copying
them to $(MODLIB)/.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, $(objtree)/modules.order is touched in two places.
In the 'prepare0' rule, scripts/Makefile.build creates an empty
modules.order while processing 'obj=.'
In the 'modules' rule, the top-level Makefile overwrites it with
the correct list of modules.
While this might be a good side-effect that modules.order is made
empty every time (probably this is not intended functionality),
I personally do not like this behavior.
Create modules.order only when it is sensible to do so.
This avoids creating the following pointless files:
scripts/basic/modules.order
scripts/dtc/modules.order
scripts/gcc-plugins/modules.order
scripts/genksyms/modules.order
scripts/mod/modules.order
scripts/modules.order
scripts/selinux/genheaders/modules.order
scripts/selinux/mdp/modules.order
scripts/selinux/modules.order
Going forward, $(objtree)/modules.order lists the modules that
was built in the last successful build.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Use recently introduced devm_platform_ioremap_resource
helper which wraps platform_get_resource() and
devm_ioremap_resource() together. This helps produce much
cleaner code and remove local `struct resource` declaration.
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
It will be useful to control the header-test by a tristate option.
If CONFIG_FOO is a tristate option, you can write like this:
header-test-$(CONFIG_FOO) += foo.h
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since commit 00c864f890 ("kconfig: allow all config targets to write
auto.conf if missing"), Kconfig creates include/config/auto.conf in the
defconfig stage when it is missing.
Joonas Kylmälä reported incorrect auto.conf generation under some
circumstances.
To reproduce it, apply the following diff:
| --- a/arch/arm/configs/imx_v6_v7_defconfig
| +++ b/arch/arm/configs/imx_v6_v7_defconfig
| @@ -345,14 +345,7 @@ CONFIG_USB_CONFIGFS_F_MIDI=y
| CONFIG_USB_CONFIGFS_F_HID=y
| CONFIG_USB_CONFIGFS_F_UVC=y
| CONFIG_USB_CONFIGFS_F_PRINTER=y
| -CONFIG_USB_ZERO=m
| -CONFIG_USB_AUDIO=m
| -CONFIG_USB_ETH=m
| -CONFIG_USB_G_NCM=m
| -CONFIG_USB_GADGETFS=m
| -CONFIG_USB_FUNCTIONFS=m
| -CONFIG_USB_MASS_STORAGE=m
| -CONFIG_USB_G_SERIAL=m
| +CONFIG_USB_FUNCTIONFS=y
| CONFIG_MMC=y
| CONFIG_MMC_SDHCI=y
| CONFIG_MMC_SDHCI_PLTFM=y
And then, run:
$ make ARCH=arm mrproper imx_v6_v7_defconfig
You will see CONFIG_USB_FUNCTIONFS=y is correctly contained in the
.config, but not in the auto.conf.
Please note drivers/usb/gadget/legacy/Kconfig is included from a choice
block in drivers/usb/gadget/Kconfig. So USB_FUNCTIONFS is a choice value.
This is probably a similar situation described in commit beaaddb625
("kconfig: tests: test defconfig when two choices interact").
When sym_calc_choice() is called, the choice symbol forgets the
SYMBOL_DEF_USER unless all of its choice values are explicitly set by
the user.
The choice symbol is given just one chance to recall it because
set_all_choice_values() is called if SYMBOL_NEED_SET_CHOICE_VALUES
is set.
When sym_calc_choice() is called again, the choice symbol forgets it
forever, since SYMBOL_NEED_SET_CHOICE_VALUES is a one-time aid.
Hence, we cannot call sym_clear_all_valid() again and again.
It is crazy to repeat set and unset of internal flags. However, we
cannot simply get rid of "sym->flags &= flags | ~SYMBOL_DEF_USER;"
Doing so would re-introduce the problem solved by commit 5d09598d48
("kconfig: fix new choices being skipped upon config update").
To work around the issue, conf_write_autoconf() stopped calling
sym_clear_all_valid().
conf_write() must be changed accordingly. Currently, it clears
SYMBOL_WRITE after the symbol is written into the .config file. This
is needed to prevent it from writing the same symbol multiple times in
case the symbol is declared in two or more locations. I added the new
flag SYMBOL_WRITTEN, to track the symbols that have been written.
Anyway, this is a cheesy workaround in order to suppress the issue
as far as defconfig is concerned.
Handling of choices is totally broken. sym_clear_all_valid() is called
every time a user touches a symbol from the GUI interface. To reproduce
it, just add a new symbol drivers/usb/gadget/legacy/Kconfig, then touch
around unrelated symbols from menuconfig. USB_FUNCTIONFS will disappear
from the .config file.
I added the Fixes tag since it is more fatal than before. But, this
has been broken since long long time before, and still it is.
We should take a closer look to fix this correctly somehow.
Fixes: 00c864f890 ("kconfig: allow all config targets to write auto.conf if missing")
Cc: linux-stable <stable@vger.kernel.org> # 4.19+
Reported-by: Joonas Kylmälä <joonas.kylmala@iki.fi>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Joonas Kylmälä <joonas.kylmala@iki.fi>
The translations guide need Noto CJK fonts. So, add a logic that
would suggest its install for distros.
It also fix a few other issues while testing the script
with several distributions.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
On Gentoo, the portage changes for ImageMagick to work are
always suggested, even if already applied. While the two
extra commands should be harmless, add a check to avoid
reporting it without need.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The name of the package with carries latexmk is different
on two distros:
- On OpenSUSE, latexmk is packaged as "texlive-latexmk-bin"
- On Mageia, latexmk is packaged at "texlive-collection-basic"
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
There aren't enough texlive packages for LaTeX-based builds
to work on CentOS/RHEL <= 7.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
There's a missing parenthesis at the script, with causes it to
fail to detect non-Fedora releases (e. g. RHEL/CentOS).
Tested with Centos 7.6.1810.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add helper commands and functions for finding pointers to struct device
by enumerating linux device bus/class infrastructure. This can be used
to fetch subsystem and driver-specific structs:
(gdb) p *$container_of($lx_device_find_by_class_name("net", "eth0"), "struct net_device", "dev")
(gdb) p *$container_of($lx_device_find_by_bus_name("i2c", "0-004b"), "struct i2c_client", "dev")
(gdb) p *(struct imx_port*)$lx_device_find_by_class_name("tty", "ttymxc1")->parent->driver_data
Several generic "lx-device-list" functions are included to enumerate
devices by bus and class:
(gdb) lx-device-list-bus usb
(gdb) lx-device-list-class
(gdb) lx-device-list-tree &platform_bus
Similar information is available in /sys but pointer values are
deliberately hidden.
Link: http://lkml.kernel.org/r/c948628041311cbf1b9b4cff3dda7d2073cb3eaa.1561492937.git.leonard.crestez@nxp.com
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is like /sys/kernel/debug/pm/pm_genpd_summary except it's
accessible through a debugger.
This can be useful if the target crashes or hangs because power domains
were not properly enabled.
Link: http://lkml.kernel.org/r/f9ee627a0d4f94b894aa202fee8a98444049bed8.1561492937.git.leonard.crestez@nxp.com
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit d91bff3011cf ("proc/sysctl: add shared variables for range
check") adds some shared const variables to be used instead of a local
copy in each source file. Warn when a chunk duplicates one of these
values in a ctl_table struct:
$ scripts/checkpatch.pl 0001-test-commit.patch
WARNING: duplicated sysctl range checking value 'zero', consider using the shared one in include/linux/sysctl.h
#27: FILE: arch/arm/kernel/isa.c:48:
+ .extra1 = &zero,
WARNING: duplicated sysctl range checking value 'int_max', consider using the shared one in include/linux/sysctl.h
#28: FILE: arch/arm/kernel/isa.c:49:
+ .extra2 = &int_max,
total: 0 errors, 2 warnings, 14 lines checked
Link: http://lkml.kernel.org/r/20190531131422.14970-1-mcroce@redhat.com
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Joe Perches <joe@perches.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a command line switch --no-moderated to skip L: mailing lists marked
with 'moderated'.
Some people prefer not emailing moderated mailing lists as the
moderation time can be indeterminate and some emails can be
intentionally dropped by a moderator.
This can cause fragmentation of email threads when some are subscribed
to a moderated list but others are not and emails are dropped.
Link: http://lkml.kernel.org/r/6f23c2918ad9fc744269feb8f909bdfb105c5afc.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Debian-based distributions place libc header files in a machine
specific directory (/usr/include/<libc-machine>) instead of
/usr/include/asm to support installation of the linux-libc-dev
package from multiple architectures. Move headers installed by
"make headers_install" accordingly using Debian's tuple from
dpkg-architecture (stored in debian/arch).
Signed-off-by: Cedric Hombourger <Cedric_Hombourger@mentor.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
'make olddefconfig' is non-interactive, so we can drop 'yes'.
The behavior is equivalent.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The audience for the Kernel driver-model is clearly Kernel hackers.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice driver changes
The gcc_plugins.txt file is already a ReST file. Move it
to the core-api book while renaming it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
- the first one converts stream_open.cocci to treat all functions that
start with wait_.* as blocking. Previously it was only wait_event_.*
functions that were considered as blocking, but this was falsely
reporting several deadlock cases as only warning. The patch was
picked by linux-kbuild and entered mainline as 0c4ab18fc3.
It is thus omitted from hereby pull-request.
- the second one teaches stream_open.cocci to consider files as being
stream-like even if they use noop_llseek. I posted this patch for
review 3 weeks ago[1], but got neither feedback nor complaints.
[1] https://lore.kernel.org/lkml/20190623072838.31234-2-kirr@nexedi.com/
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Merge tag 'stream_open-5.3' of https://lab.nexedi.com/kirr/linux
Pull stream_open() updates from Kirill Smelkov:
"This time on stream_open front it is only two small changes:
- the first one converts stream_open.cocci to treat all functions
that start with wait_.* as blocking. Previously it was only
wait_event_.* functions that were considered as blocking, but this
was falsely reporting several deadlock cases as only warning.
This was picked by linux-kbuild and entered mainline as commit
0c4ab18fc3 ("coccinelle: api/stream_open: treat all wait_.*()
calls as blocking"), and already merged earlier.
- the second one teaches stream_open.cocci to consider files as being
stream-like even if they use noop_llseek. It results in two more
drivers being converted to stream_open() (mousedev.c and
hid-sensor-custom.c)"
* tag 'stream_open-5.3' of https://lab.nexedi.com/kirr/linux:
*: convert stream-like files -> stream_open, even if they use noop_llseek
This patch continues 10dce8af34 (fs: stream_open - opener for
stream-like files so that read and write can run simultaneously without
deadlock) and c5bf68fe0c (*: convert stream-like files from
nonseekable_open -> stream_open) and teaches steam_open.cocci to
consider files as being stream-like not only if they have
.llseek=no_llseek, but also if they have .llseek=noop_llseek.
This is safe to do: the comment about noop_llseek says
This is an implementation of ->llseek useable for the rare special case when
userspace expects the seek to succeed but the (device) file is actually not
able to perform the seek. In this case you use noop_llseek() instead of
falling back to the default implementation of ->llseek.
and in general noop_llseek was massively added to drivers in 6038f373a3
(llseek: automatically add .llseek fop) when changing default for NULL .llseek
from NOP to no_llseek with the idea to avoid breaking compatibility, if
maybe some user-space program was using lseek on a device without caring
about the result, but caring if it was an error or not.
Amended semantic patch produces two changes when applied tree-wide:
drivers/hid/hid-sensor-custom.c:690:8-24: WARNING: hid_sensor_custom_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
drivers/input/mousedev.c:564:1-17: ERROR: mousedev_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jan Blunck <jblunck@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Kirill Smelkov <kirr@nexedi.com>
Notable changes:
- Removal of the NPU DMA code, used by the out-of-tree Nvidia driver, as well
as some other functions only used by drivers that haven't (yet?) made it
upstream.
- A fix for a bug in our handling of hardware watchpoints (eg. perf record -e
mem: ...) which could lead to register corruption and kernel crashes.
- Enable HAVE_ARCH_HUGE_VMAP, which allows us to use large pages for vmalloc
when using the Radix MMU.
- A large but incremental rewrite of our exception handling code to use gas
macros rather than multiple levels of nested CPP macros.
And the usual small fixes, cleanups and improvements.
Thanks to:
Alastair D'Silva, Alexey Kardashevskiy, Andreas Schwab, Aneesh Kumar K.V, Anju
T Sudhakar, Anton Blanchard, Arnd Bergmann, Athira Rajeev, Cédric Le Goater,
Christian Lamparter, Christophe Leroy, Christophe Lombard, Christoph Hellwig,
Daniel Axtens, Denis Efremov, Enrico Weigelt, Frederic Barrat, Gautham R.
Shenoy, Geert Uytterhoeven, Geliang Tang, Gen Zhang, Greg Kroah-Hartman, Greg
Kurz, Gustavo Romero, Krzysztof Kozlowski, Madhavan Srinivasan, Masahiro
Yamada, Mathieu Malaterre, Michael Neuling, Nathan Lynch, Naveen N. Rao,
Nicholas Piggin, Nishad Kamdar, Oliver O'Halloran, Qian Cai, Ravi Bangoria,
Sachin Sant, Sam Bobroff, Satheesh Rajendran, Segher Boessenkool, Shaokun
Zhang, Shawn Anastasio, Stewart Smith, Suraj Jitindar Singh, Thiago Jung
Bauermann, YueHaibing.
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Merge tag 'powerpc-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- Removal of the NPU DMA code, used by the out-of-tree Nvidia driver,
as well as some other functions only used by drivers that haven't
(yet?) made it upstream.
- A fix for a bug in our handling of hardware watchpoints (eg. perf
record -e mem: ...) which could lead to register corruption and
kernel crashes.
- Enable HAVE_ARCH_HUGE_VMAP, which allows us to use large pages for
vmalloc when using the Radix MMU.
- A large but incremental rewrite of our exception handling code to
use gas macros rather than multiple levels of nested CPP macros.
And the usual small fixes, cleanups and improvements.
Thanks to: Alastair D'Silva, Alexey Kardashevskiy, Andreas Schwab,
Aneesh Kumar K.V, Anju T Sudhakar, Anton Blanchard, Arnd Bergmann,
Athira Rajeev, Cédric Le Goater, Christian Lamparter, Christophe
Leroy, Christophe Lombard, Christoph Hellwig, Daniel Axtens, Denis
Efremov, Enrico Weigelt, Frederic Barrat, Gautham R. Shenoy, Geert
Uytterhoeven, Geliang Tang, Gen Zhang, Greg Kroah-Hartman, Greg Kurz,
Gustavo Romero, Krzysztof Kozlowski, Madhavan Srinivasan, Masahiro
Yamada, Mathieu Malaterre, Michael Neuling, Nathan Lynch, Naveen N.
Rao, Nicholas Piggin, Nishad Kamdar, Oliver O'Halloran, Qian Cai, Ravi
Bangoria, Sachin Sant, Sam Bobroff, Satheesh Rajendran, Segher
Boessenkool, Shaokun Zhang, Shawn Anastasio, Stewart Smith, Suraj
Jitindar Singh, Thiago Jung Bauermann, YueHaibing"
* tag 'powerpc-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (163 commits)
powerpc/powernv/idle: Fix restore of SPRN_LDBAR for POWER9 stop state.
powerpc/eeh: Handle hugepages in ioremap space
ocxl: Update for AFU descriptor template version 1.1
powerpc/boot: pass CONFIG options in a simpler and more robust way
powerpc/boot: add {get, put}_unaligned_be32 to xz_config.h
powerpc/irq: Don't WARN continuously in arch_local_irq_restore()
powerpc/module64: Use symbolic instructions names.
powerpc/module32: Use symbolic instructions names.
powerpc: Move PPC_HA() PPC_HI() and PPC_LO() to ppc-opcode.h
powerpc/module64: Fix comment in R_PPC64_ENTRY handling
powerpc/boot: Add lzo support for uImage
powerpc/boot: Add lzma support for uImage
powerpc/boot: don't force gzipped uImage
powerpc/8xx: Add microcode patch to move SMC parameter RAM.
powerpc/8xx: Use IO accessors in microcode programming.
powerpc/8xx: replace #ifdefs by IS_ENABLED() in microcode.c
powerpc/8xx: refactor programming of microcode CPM params.
powerpc/8xx: refactor printing of microcode patch name.
powerpc/8xx: Refactor microcode write
powerpc/8xx: refactor writing of CPM microcode arrays
...
- always require argument for --defconfig and remove the hard-coded
arch/$(ARCH)/defconfig path
- make arch/$(SRCARCH)/configs/defconfig the new default of defconfig
- some code cleanups
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Merge tag 'kconfig-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- always require argument for --defconfig and remove the hard-coded
arch/$(ARCH)/defconfig path
- make arch/$(SRCARCH)/configs/defconfig the new default of defconfig
- some code cleanups
* tag 'kconfig-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: remove meaningless if-conditional in conf_read()
kconfig: Fix spelling of sym_is_changable
unicore32: rename unicore32_defconfig to defconfig
kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG
kconfig: add static qualifier to expand_string()
kconfig: require the argument of --defconfig
kconfig: remove always false ifeq ($(KBUILD_DEFCONFIG,) conditional
- remove headers_{install,check}_all targets
- remove unreasonable 'depends on !UML' from CONFIG_SAMPLES
- re-implement 'make headers_install' more cleanly
- add new header-test-y syntax to compile-test headers
- compile-test exported headers to ensure they are compilable in
user-space
- compile-test headers under include/ to ensure they are self-contained
- remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value flags
- add -Werror=unknown-warning-option for Clang
- add 128-bit built-in types support to genksyms
- fix missed rebuild of modules.builtin
- propagate 'No space left on device' error in fixdep to Make
- allow Clang to use its integrated assembler
- improve some coccinelle scripts
- add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute
path for $(srctree).
- do not ignore errors when compression utility is missing
- misc cleanups
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Merge tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- remove headers_{install,check}_all targets
- remove unreasonable 'depends on !UML' from CONFIG_SAMPLES
- re-implement 'make headers_install' more cleanly
- add new header-test-y syntax to compile-test headers
- compile-test exported headers to ensure they are compilable in
user-space
- compile-test headers under include/ to ensure they are self-contained
- remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value
flags
- add -Werror=unknown-warning-option for Clang
- add 128-bit built-in types support to genksyms
- fix missed rebuild of modules.builtin
- propagate 'No space left on device' error in fixdep to Make
- allow Clang to use its integrated assembler
- improve some coccinelle scripts
- add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute
path for $(srctree).
- do not ignore errors when compression utility is missing
- misc cleanups
* tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (49 commits)
kbuild: use -- separater intead of $(filter-out ...) for cc-cross-prefix
kbuild: Inform user to pass ARCH= for make mrproper
kbuild: fix compression errors getting ignored
kbuild: add a flag to force absolute path for srctree
kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree
kbuild: remove src and obj from the top Makefile
scripts/tags.sh: remove unused environment variables from comments
scripts/tags.sh: drop SUBARCH support for ARM
kbuild: compile-test kernel headers to ensure they are self-contained
kheaders: include only headers into kheaders_data.tar.xz
kheaders: remove meaningless -R option of 'ls'
kbuild: support header-test-pattern-y
kbuild: do not create wrappers for header-test-y
kbuild: compile-test exported headers to ensure they are self-contained
init/Kconfig: add CONFIG_CC_CAN_LINK
kallsyms: exclude kasan local symbols on s390
kbuild: add more hints about SUBDIRS replacement
coccinelle: api/stream_open: treat all wait_.*() calls as blocking
coccinelle: put_device: Add a cast to an expression for an assignment
coccinelle: put_device: Adjust a message construction
...
Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups. Because of this, there is going
to be some merge issues with your tree at the moment, I'll follow up
with the expected resolutions to make it easier for you.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups (will cause build warnings
with s390 and coresight drivers in your tree)
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse
easier due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of merge
issues that Stephen has been patient with me for. Other than the merge
issues, functionality is working properly in linux-next :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"
* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
Merge updates from Andrew Morton:
"Am experimenting with splitting MM up into identifiable subsystems
perhaps with a view to gitifying it in complex ways. Also with more
verbose "incoming" emails.
Most of MM is here and a few other trees.
Subsystems affected by this patch series:
- hotfixes
- iommu
- scripts
- arch/sh
- ocfs2
- mm:slab-generic
- mm:slub
- mm:kmemleak
- mm:kasan
- mm:cleanups
- mm:debug
- mm:pagecache
- mm:swap
- mm:memcg
- mm:gup
- mm:pagemap
- mm:infrastructure
- mm:vmalloc
- mm:initialization
- mm:pagealloc
- mm:vmscan
- mm:tools
- mm:proc
- mm:ras
- mm:oom-kill
hotfixes:
mm: vmscan: scan anonymous pages on file refaults
mm/nvdimm: add is_ioremap_addr and use that to check ioremap address
mm/memcontrol: fix wrong statistics in memory.stat
mm/z3fold.c: lock z3fold page before __SetPageMovable()
nilfs2: do not use unexported cpu_to_le32()/le32_to_cpu() in uapi header
MAINTAINERS: nilfs2: update email address
iommu:
include/linux/dmar.h: replace single-char identifiers in macros
scripts:
scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
scripts/decode_stacktrace: look for modules with .ko.debug extension
scripts/spelling.txt: drop "sepc" from the misspelling list
scripts/spelling.txt: add spelling fix for prohibited
scripts/decode_stacktrace: Accept dash/underscore in modules
scripts/spelling.txt: add more spellings to spelling.txt
arch/sh:
arch/sh/configs/sdk7786_defconfig: remove CONFIG_LOGFS
sh: config: remove left-over BACKLIGHT_LCD_SUPPORT
sh: prevent warnings when using iounmap
ocfs2:
fs: ocfs: fix spelling mistake "hearbeating" -> "heartbeat"
ocfs2/dlm: use struct_size() helper
ocfs2: add last unlock times in locking_state
ocfs2: add locking filter debugfs file
ocfs2: add first lock wait time in locking_state
ocfs: no need to check return value of debugfs_create functions
fs/ocfs2/dlmglue.c: unneeded variable: "status"
ocfs2: use kmemdup rather than duplicating its implementation
mm:slab-generic:
Patch series "mm/slab: Improved sanity checking":
mm/slab: validate cache membership under freelist hardening
mm/slab: sanity-check page type when looking up cache
lkdtm/heap: add tests for freelist hardening
mm:slub:
mm/slub.c: avoid double string traverse in kmem_cache_flags()
slub: don't panic for memcg kmem cache creation failure
mm:kmemleak:
mm/kmemleak.c: fix check for softirq context
mm/kmemleak.c: change error at _write when kmemleak is disabled
docs: kmemleak: add more documentation details
mm:kasan:
mm/kasan: print frame description for stack bugs
Patch series "Bitops instrumentation for KASAN", v5:
lib/test_kasan: add bitops tests
x86: use static_cpu_has in uaccess region to avoid instrumentation
asm-generic, x86: add bitops instrumentation for KASAN
Patch series "mm/kasan: Add object validation in ksize()", v3:
mm/kasan: introduce __kasan_check_{read,write}
mm/kasan: change kasan_check_{read,write} to return boolean
lib/test_kasan: Add test for double-kzfree detection
mm/slab: refactor common ksize KASAN logic into slab_common.c
mm/kasan: add object validation in ksize()
mm:cleanups:
include/linux/pfn_t.h: remove pfn_t_to_virt()
Patch series "remove ARCH_SELECT_MEMORY_MODEL where it has no effect":
arm: remove ARCH_SELECT_MEMORY_MODEL
s390: remove ARCH_SELECT_MEMORY_MODEL
sparc: remove ARCH_SELECT_MEMORY_MODEL
mm/gup.c: make follow_page_mask() static
mm/memory.c: trivial clean up in insert_page()
mm: make !CONFIG_HUGE_PAGE wrappers into static inlines
include/linux/mm_types.h: ifdef struct vm_area_struct::swap_readahead_info
mm: remove the account_page_dirtied export
mm/page_isolation.c: change the prototype of undo_isolate_page_range()
include/linux/vmpressure.h: use spinlock_t instead of struct spinlock
mm: remove the exporting of totalram_pages
include/linux/pagemap.h: document trylock_page() return value
mm:debug:
mm/failslab.c: by default, do not fail allocations with direct reclaim only
Patch series "debug_pagealloc improvements":
mm, debug_pagelloc: use static keys to enable debugging
mm, page_alloc: more extensive free page checking with debug_pagealloc
mm, debug_pagealloc: use a page type instead of page_ext flag
mm:pagecache:
Patch series "fix filler_t callback type mismatches", v2:
mm/filemap.c: fix an overly long line in read_cache_page
mm/filemap: don't cast ->readpage to filler_t for do_read_cache_page
jffs2: pass the correct prototype to read_cache_page
9p: pass the correct prototype to read_cache_page
mm/filemap.c: correct the comment about VM_FAULT_RETRY
mm:swap:
mm, swap: fix race between swapoff and some swap operations
mm/swap_state.c: simplify total_swapcache_pages() with get_swap_device()
mm, swap: use rbtree for swap_extent
mm/mincore.c: fix race between swapoff and mincore
mm:memcg:
memcg, oom: no oom-kill for __GFP_RETRY_MAYFAIL
memcg, fsnotify: no oom-kill for remote memcg charging
mm, memcg: introduce memory.events.local
mm: memcontrol: dump memory.stat during cgroup OOM
Patch series "mm: reparent slab memory on cgroup removal", v7:
mm: memcg/slab: postpone kmem_cache memcg pointer initialization to memcg_link_cache()
mm: memcg/slab: rename slab delayed deactivation functions and fields
mm: memcg/slab: generalize postponed non-root kmem_cache deactivation
mm: memcg/slab: introduce __memcg_kmem_uncharge_memcg()
mm: memcg/slab: unify SLAB and SLUB page accounting
mm: memcg/slab: don't check the dying flag on kmem_cache creation
mm: memcg/slab: synchronize access to kmem_cache dying flag using a spinlock
mm: memcg/slab: rework non-root kmem_cache lifecycle management
mm: memcg/slab: stop setting page->mem_cgroup pointer for slab pages
mm: memcg/slab: reparent memcg kmem_caches on cgroup removal
mm, memcg: add a memcg_slabinfo debugfs file
mm:gup:
Patch series "switch the remaining architectures to use generic GUP", v4:
mm: use untagged_addr() for get_user_pages_fast addresses
mm: simplify gup_fast_permitted
mm: lift the x86_32 PAE version of gup_get_pte to common code
MIPS: use the generic get_user_pages_fast code
sh: add the missing pud_page definition
sh: use the generic get_user_pages_fast code
sparc64: add the missing pgd_page definition
sparc64: define untagged_addr()
sparc64: use the generic get_user_pages_fast code
mm: rename CONFIG_HAVE_GENERIC_GUP to CONFIG_HAVE_FAST_GUP
mm: reorder code blocks in gup.c
mm: consolidate the get_user_pages* implementations
mm: validate get_user_pages_fast flags
mm: move the powerpc hugepd code to mm/gup.c
mm: switch gup_hugepte to use try_get_compound_head
mm: mark the page referenced in gup_hugepte
mm/gup: speed up check_and_migrate_cma_pages() on huge page
mm/gup.c: remove some BUG_ONs from get_gate_page()
mm/gup.c: mark undo_dev_pagemap as __maybe_unused
mm:pagemap:
asm-generic, x86: introduce generic pte_{alloc,free}_one[_kernel]
alpha: switch to generic version of pte allocation
arm: switch to generic version of pte allocation
arm64: switch to generic version of pte allocation
csky: switch to generic version of pte allocation
m68k: sun3: switch to generic version of pte allocation
mips: switch to generic version of pte allocation
nds32: switch to generic version of pte allocation
nios2: switch to generic version of pte allocation
parisc: switch to generic version of pte allocation
riscv: switch to generic version of pte allocation
um: switch to generic version of pte allocation
unicore32: switch to generic version of pte allocation
mm/pgtable: drop pgtable_t variable from pte_fn_t functions
mm/memory.c: fail when offset == num in first check of __vm_map_pages()
mm:infrastructure:
mm/mmu_notifier: use hlist_add_head_rcu()
mm:vmalloc:
Patch series "Some cleanups for the KVA/vmalloc", v5:
mm/vmalloc.c: remove "node" argument
mm/vmalloc.c: preload a CPU with one object for split purpose
mm/vmalloc.c: get rid of one single unlink_va() when merge
mm/vmalloc.c: switch to WARN_ON() and move it under unlink_va()
mm/vmalloc.c: spelling> s/informaion/information/
mm:initialization:
mm/large system hash: use vmalloc for size > MAX_ORDER when !hashdist
mm/large system hash: clear hashdist when only one node with memory is booted
mm:pagealloc:
arm64: move jump_label_init() before parse_early_param()
Patch series "add init_on_alloc/init_on_free boot options", v10:
mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options
mm: init: report memory auto-initialization features at boot time
mm:vmscan:
mm: vmscan: remove double slab pressure by inc'ing sc->nr_scanned
mm: vmscan: correct some vmscan counters for THP swapout
mm:tools:
tools/vm/slabinfo: order command line options
tools/vm/slabinfo: add partial slab listing to -X
tools/vm/slabinfo: add option to sort by partial slabs
tools/vm/slabinfo: add sorting info to help menu
mm:proc:
proc: use down_read_killable mmap_sem for /proc/pid/maps
proc: use down_read_killable mmap_sem for /proc/pid/smaps_rollup
proc: use down_read_killable mmap_sem for /proc/pid/pagemap
proc: use down_read_killable mmap_sem for /proc/pid/clear_refs
proc: use down_read_killable mmap_sem for /proc/pid/map_files
mm: use down_read_killable for locking mmap_sem in access_remote_vm
mm: smaps: split PSS into components
mm: vmalloc: show number of vmalloc pages in /proc/meminfo
mm:ras:
mm/memory-failure.c: clarify error message
mm:oom-kill:
mm: memcontrol: use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks()
mm, oom: refactor dump_tasks for memcg OOMs
mm, oom: remove redundant task_in_mem_cgroup() check
oom: decouple mems_allowed from oom_unkillable_task
mm/oom_kill.c: remove redundant OOM score normalization in select_bad_process()"
* akpm: (147 commits)
mm/oom_kill.c: remove redundant OOM score normalization in select_bad_process()
oom: decouple mems_allowed from oom_unkillable_task
mm, oom: remove redundant task_in_mem_cgroup() check
mm, oom: refactor dump_tasks for memcg OOMs
mm: memcontrol: use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks()
mm/memory-failure.c: clarify error message
mm: vmalloc: show number of vmalloc pages in /proc/meminfo
mm: smaps: split PSS into components
mm: use down_read_killable for locking mmap_sem in access_remote_vm
proc: use down_read_killable mmap_sem for /proc/pid/map_files
proc: use down_read_killable mmap_sem for /proc/pid/clear_refs
proc: use down_read_killable mmap_sem for /proc/pid/pagemap
proc: use down_read_killable mmap_sem for /proc/pid/smaps_rollup
proc: use down_read_killable mmap_sem for /proc/pid/maps
tools/vm/slabinfo: add sorting info to help menu
tools/vm/slabinfo: add option to sort by partial slabs
tools/vm/slabinfo: add partial slab listing to -X
tools/vm/slabinfo: order command line options
mm: vmscan: correct some vmscan counters for THP swapout
mm: vmscan: remove double slab pressure by inc'ing sc->nr_scanned
...
Here are some of the more common spelling mistakes and typos that I've
found while fixing up spelling mistakes in the kernel over the past few
months. Developers keep on coming up with more inventive ways to spell
words.
Link: http://lkml.kernel.org/r/20190618134807.9729-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The manpage for modprobe mentions that dashes and underscores are
treated interchangeably in module names. The stack trace dumps seem to
print module names with underscores. Use bash to replace _ with the
pattern [-_] so that file names with dashes or underscores can be found.
For example, this line:
[ 27.919759] hda_widget_sysfs_init+0x2b8/0x3a5 [snd_hda_core]
should find a module named snd-hda-core.ko.
Link: http://lkml.kernel.org/r/20190531205926.42474-1-evgreen@chromium.org
Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Evan Green <evgreen@chromium.org>
Cc: Nicolas Boichat <drinkcat@chromium.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Manuel Traut <manut@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Misspelling 'prohibited' is quite common in the real world, although
surprisingly not so much in the Linux Kernel. In addition to fixing the
typo we may as well add it to the spelling checker.
Also adding the present participle (prohibiting).
Link: http://lkml.kernel.org/r/20190514153341.22540-1-chris.paterson2@renesas.com
Fixes: 5bf2fbbef5 ("clk: renesas: cpg-mssr: Add r8a77470 support")
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The RISC-V architecture has a register named the "Supervisor Exception
Program Counter", or "sepc". This abbreviation triggers checkpatch.pl's
misspelling detector, resulting in noise in the checkpatch output. The
risk that this noise could cause more useful warnings to be missed seems
to outweigh the harm of an occasional misspelling of "spec". Thus drop
the "sepc" entry from the misspelling list.
[akpm@linux-foundation.org: fix existing "sepc" instances, per Joe]
Link: http://lkml.kernel.org/r/20190518210037.13674-1-paul.walmsley@sifive.com
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In Chromium OS kernel builds, we split the debug information as .ko.debug
files, and that's what decode_stacktrace.sh needs to use.
Relax objfile matching rule to allow any .ko* file to be matched.
[drinkcat@chromium.org: add quotes around name pattern]
Link: http://lkml.kernel.org/r/20190528103346.42720-1-drinkcat@chromium.org
Link: http://lkml.kernel.org/r/20190521234148.64060-1-drinkcat@chromium.org
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The basepath may contain special characters, which would confuse the regex
matcher. ${var#prefix} does the right thing.
Link: http://lkml.kernel.org/r/20190518055946.181563-1-drinkcat@chromium.org
Fixes: 67a28de47f ("scripts/decode_stacktrace: only strip base path when a prefix of the path")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- DT binding schema examples are now validated against the schemas.
Various examples are fixed due to that.
- Sync dtc with upstream version v1.5.0-30-g702c1b6c0e73
- Initial schemas for networking bindings. This includes ethernet, phy
and mdio common bindings with several Allwinner and stmmac converted
to the schema.
- Conversion of more Arm top-level SoC/board bindings to DT schema
- Conversion of PSCI binding to DT schema
- Rework Arm CPU schema to coexist with other CPU schemas
- Add a bunch of missing vendor prefixes and new ones for SoChip,
Sipeed, Kontron, B&R Industrial Automation GmbH, and Espressif
- Add Mediatek UART RX wakeup support to binding
- Add reset to ST UART binding
- Remove some Linuxisms from the endianness common-properties.txt
binding
- Make the flattened DT read-only after init
- Ignore disabled reserved memory nodes
- Clean-up some dead code in FDT functions
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Merge tag 'devicetree-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
- DT binding schema examples are now validated against the schemas.
Various examples are fixed due to that.
- Sync dtc with upstream version v1.5.0-30-g702c1b6c0e73
- Initial schemas for networking bindings. This includes ethernet, phy
and mdio common bindings with several Allwinner and stmmac converted
to the schema.
- Conversion of more Arm top-level SoC/board bindings to DT schema
- Conversion of PSCI binding to DT schema
- Rework Arm CPU schema to coexist with other CPU schemas
- Add a bunch of missing vendor prefixes and new ones for SoChip,
Sipeed, Kontron, B&R Industrial Automation GmbH, and Espressif
- Add Mediatek UART RX wakeup support to binding
- Add reset to ST UART binding
- Remove some Linuxisms from the endianness common-properties.txt
binding
- Make the flattened DT read-only after init
- Ignore disabled reserved memory nodes
- Clean-up some dead code in FDT functions
* tag 'devicetree-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (56 commits)
dt-bindings: vendor-prefixes: add Sipeed
dt-bindings: vendor-prefixes: add SoChip
dt-bindings: 83xx-512x-pci: Drop cell-index property
dt-bindings: serial: add documentation for Rx in-band wakeup support
dt-bindings: arm: Convert RDA Micro board/soc bindings to json-schema
of: unittest: simplify getting the adapter of a client
of/fdt: pass early_init_dt_reserve_memory_arch() with bool type nomap
of/platform: Drop superfluous cast in of_device_make_bus_id()
dt-bindings: usb: ehci: Fix example warnings
dt-bindings: net: Use phy-mode instead of phy-connection-type
dt-bindings: simple-framebuffer: Add requirement for pipelines
dt-bindings: display: Fix simple-framebuffer example
dt-bindings: net: mdio: Add child nodes
dt-bindings: net: mdio: Add address and size cells
dt-bindings: net: mdio: Add a nodename pattern
dt-bindings: mtd: sunxi-nand: Drop 'maxItems' from child 'reg' property
dt-bindings: arm: Limit cpus schema to only check Arm 'cpu' nodes
dt-bindings: backlight: lm3630a: correct schema validation
dt-bindings: net: dwmac: Deprecate the PHY reset properties
dt-bindings: net: sun8i-emac: Convert the binding to a schemas
...
sym_is_choice(sym) has already been checked by previous if-block:
if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE))
continue;
Hence, the following code is redundant, and the comment is misleading:
if (!sym_is_choice(sym))
continue;
/* fall through */
It always takes 'continue', never falls though.
Clean up the dead code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
arch/mips/Makefile passes prefixes that start with '-' to cc-cross-prefix
when $(tool-archpref) evaluates to the empty string.
They are filtered-out before the $(shell ...) invocation. Otherwise,
'command -v' would be confused.
$ command -v -linux-gcc
bash: command: -l: invalid option
command: usage: command [-pVv] command [arg ...]
Since commit 913ab9780f ("kbuild: use more portable 'command -v' for
cc-cross-prefix"), cc-cross-prefix throws away the stderr output, so
the console is not polluted in any way.
This is not a big deal in practice, but I see a slightly better taste
in adding '--' to teach it that '-linux-gcc' is an argument instead of
a command option.
This will cause extra forking of subshell, but it will not be noticeable
performance regression.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
A missing compression utility or other errors were not picked up by make
and an empty kernel image was produced. By removing the &&, errors will
no longer be ignored.
Signed-off-by: Harald Seiler <hws@denx.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In old days, Kbuild always used an absolute path for $(srctree).
Since commit 890676c65d ("kbuild: Use relative path when building in
the source tree"), $(srctree) is '.' when O= was not passed from the
command line.
Yet, using absolute paths is useful in some cases even without O=, for
instance, to create a cscope file with absolute path tags.
'O=.' was known to work as a workaround to force Kbuild to use absolute
paths even when you are building in the source tree.
Since commit 25b146c5b8 ("kbuild: allow Kbuild to start from any
directory"), Kbuild is too clever to be tricked. Even if you pass 'O=.'
Kbuild notices you are building in the source tree, then use '.' for
$(srctree).
So, 'make O=. cscope' is no help to create absolute path tags.
We cannot force one or the other according to commit e93bc1a0ca
("Revert "kbuild: specify absolute paths for cscope""). Both of
relative path and absolute path have pros and cons.
This commit adds a new flag KBUILD_ABS_SRCTREE to allow users to
choose the absolute path for $(srctree).
'make KBUILD_ABS_SRCTREE=1 cscope' will work as a replacement of
'make O=. cscope'.
Reported-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Commit 25b146c5b8 ("kbuild: allow Kbuild to start from any directory")
deprecated KBUILD_SRCTREE.
It is only used in tools/testing/selftest/ to distinguish out-of-tree
build. Replace it with a new boolean flag, building_out_of_srctree.
I also replaced the conditional ($(srctree),.) because the next commit
will allow an absolute path to be used for $(srctree) even when building
in the source tree.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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wmjYMKbAxJWwz0vkRp1aSnUMSRur4Wo3qCWaOWpjkP4xhSBTTER5e5cqeuVSWde5
FaD8s0yjnQsUaH3oxZ7zDL//MR0N+C4Izs9c2A8HkdksWTdTvI7YX8c766iIZgrm
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Kl+t6iu02qZgZrvnq4pHUVnLQtw7KfyL3mzeljVxEeaTbGODPOJfypY1OMfhWYw+
dIlmsmfa2aANf5wttl8CjLkAIIG3JmuWO2exMQidvXlGCE+rKVM=
=u7q2
-----END PGP SIGNATURE-----
Merge 4.19.58 into android-4.19
Changes in 4.19.58
Bluetooth: Fix faulty expression for minimum encryption key size check
block: Fix a NULL pointer dereference in generic_make_request()
md/raid0: Do not bypass blocking queue entered for raid0 bios
netfilter: nf_flow_table: ignore DF bit setting
netfilter: nft_flow_offload: set liberal tracking mode for tcp
netfilter: nft_flow_offload: don't offload when sequence numbers need adjustment
netfilter: nft_flow_offload: IPCB is only valid for ipv4 family
ASoC : cs4265 : readable register too low
ASoC: ak4458: add return value for ak4458_probe
ASoC: soc-pcm: BE dai needs prepare when pause release after resume
ASoC: ak4458: rstn_control - return a non-zero on error only
spi: bitbang: Fix NULL pointer dereference in spi_unregister_master
drm/mediatek: fix unbind functions
drm/mediatek: unbind components in mtk_drm_unbind()
drm/mediatek: call drm_atomic_helper_shutdown() when unbinding driver
drm/mediatek: clear num_pipes when unbind driver
drm/mediatek: call mtk_dsi_stop() after mtk_drm_crtc_atomic_disable()
ASoC: max98090: remove 24-bit format support if RJ is 0
ASoC: sun4i-i2s: Fix sun8i tx channel offset mask
ASoC: sun4i-i2s: Add offset to RX channel select
x86/CPU: Add more Icelake model numbers
usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
ALSA: hdac: fix memory release for SST and SOF drivers
SoC: rt274: Fix internal jack assignment in set_jack callback
scsi: hpsa: correct ioaccel2 chaining
drm: panel-orientation-quirks: Add quirk for GPD pocket2
drm: panel-orientation-quirks: Add quirk for GPD MicroPC
platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
platform/x86: intel-vbtn: Report switch events when event wakes device
platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
i2c: pca-platform: Fix GPIO lookup code
cpuset: restore sanity to cpuset_cpus_allowed_fallback()
scripts/decode_stacktrace.sh: prefix addr2line with $CROSS_COMPILE
mm/mlock.c: change count_mm_mlocked_page_nr return type
tracing: avoid build warning with HAVE_NOP_MCOUNT
module: Fix livepatch/ftrace module text permissions race
ftrace: Fix NULL pointer dereference in free_ftrace_func_mapper()
drm/i915/dmc: protect against reading random memory
ptrace: Fix ->ptracer_cred handling for PTRACE_TRACEME
crypto: user - prevent operating on larval algorithms
crypto: cryptd - Fix skcipher instance memory leak
ALSA: seq: fix incorrect order of dest_client/dest_ports arguments
ALSA: firewire-lib/fireworks: fix miss detection of received MIDI messages
ALSA: line6: Fix write on zero-sized buffer
ALSA: usb-audio: fix sign unintended sign extension on left shifts
ALSA: hda/realtek: Add quirks for several Clevo notebook barebones
ALSA: hda/realtek - Change front mic location for Lenovo M710q
lib/mpi: Fix karactx leak in mpi_powm
fs/userfaultfd.c: disable irqs for fault_pending and event locks
tracing/snapshot: Resize spare buffer if size changed
ARM: dts: armada-xp-98dx3236: Switch to armada-38x-uart serial node
arm64: kaslr: keep modules inside module region when KASAN is enabled
drm/amd/powerplay: use hardware fan control if no powerplay fan table
drm/amdgpu/gfx9: use reset default for PA_SC_FIFO_SIZE
drm/etnaviv: add missing failure path to destroy suballoc
drm/imx: notify drm core before sending event during crtc disable
drm/imx: only send event on crtc disable if kept disabled
ftrace/x86: Remove possible deadlock between register_kprobe() and ftrace_run_update_code()
mm/vmscan.c: prevent useless kswapd loops
btrfs: Ensure replaced device doesn't have pending chunk allocation
tty: rocket: fix incorrect forward declaration of 'rp_init()'
mlxsw: spectrum: Handle VLAN device unlinking
net/smc: move unhash before release of clcsock
media: s5p-mfc: fix incorrect bus assignment in virtual child device
drm/fb-helper: generic: Don't take module ref for fbcon
f2fs: don't access node/meta inode mapping after iput
mac80211: mesh: fix missing unlock on error in table_path_del()
scsi: tcmu: fix use after free
selftests: fib_rule_tests: Fix icmp proto with ipv6
x86/boot/compressed/64: Do not corrupt EDX on EFER.LME=1 setting
net: hns: Fixes the missing put_device in positive leg for roce reset
ALSA: hda: Initialize power_state field properly
rds: Fix warning.
ip6: fix skb leak in ip6frag_expire_frag_queue()
netfilter: ipv6: nf_defrag: fix leakage of unqueued fragments
sc16is7xx: move label 'err_spi' to correct section
net: hns: fix unsigned comparison to less than zero
bpf: fix bpf_jit_limit knob for PAGE_SIZE >= 64K
netfilter: ipv6: nf_defrag: accept duplicate fragments again
KVM: x86: degrade WARN to pr_warn_ratelimited
KVM: LAPIC: Fix pending interrupt in IRR blocked by software disable LAPIC
nfsd: Fix overflow causing non-working mounts on 1 TB machines
svcrdma: Ignore source port when computing DRC hash
MIPS: Fix bounds check virt_addr_valid
MIPS: Add missing EHB in mtc0 -> mfc0 sequence.
MIPS: have "plain" make calls build dtbs for selected platforms
dmaengine: qcom: bam_dma: Fix completed descriptors count
dmaengine: imx-sdma: remove BD_INTR for channel0
Linux 4.19.58
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit c04e32e911 ]
At least for ARM64 kernels compiled with the crosstoolchain from
Debian/stretch or with the toolchain from kernel.org the line number is
not decoded correctly by 'decode_stacktrace.sh':
$ echo "[ 136.513051] f1+0x0/0xc [kcrash]" | \
CROSS_COMPILE=/opt/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- \
./scripts/decode_stacktrace.sh /scratch/linux-arm64/vmlinux \
/scratch/linux-arm64 \
/nfs/debian/lib/modules/4.20.0-devel
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:68) kcrash
If addr2line from the toolchain is used the decoded line number is correct:
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:57) kcrash
Link: http://lkml.kernel.org/r/20190527083425.3763-1-manut@linutronix.de
Signed-off-by: Manuel Traut <manut@linutronix.de>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with other
trees, unfortunately. He has a lot more of these waiting on the wings
that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos, and one
on Spectre vulnerabilities.
- Various improvements to the build system, including automatic markup of
function() references because some people, for reasons I will never
understand, were of the opinion that :c:func:``function()`` is
unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux
Pull Documentation updates from Jonathan Corbet:
"It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with
other trees, unfortunately. He has a lot more of these waiting on
the wings that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos,
and one on Spectre vulnerabilities.
- Various improvements to the build system, including automatic
markup of function() references because some people, for reasons I
will never understand, were of the opinion that
:c:func:``function()`` is unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc"
* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
docs: automarkup.py: ignore exceptions when seeking for xrefs
docs: Move binderfs to admin-guide
Disable Sphinx SmartyPants in HTML output
doc: RCU callback locks need only _bh, not necessarily _irq
docs: format kernel-parameters -- as code
Doc : doc-guide : Fix a typo
platform: x86: get rid of a non-existent document
Add the RCU docs to the core-api manual
Documentation: RCU: Add TOC tree hooks
Documentation: RCU: Rename txt files to rst
Documentation: RCU: Convert RCU UP systems to reST
Documentation: RCU: Convert RCU linked list to reST
Documentation: RCU: Convert RCU basic concepts to reST
docs: filesystems: Remove uneeded .rst extension on toctables
scripts/sphinx-pre-install: fix out-of-tree build
docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
Documentation: PGP: update for newer HW devices
Documentation: Add section about CPU vulnerabilities for Spectre
Documentation: platform: Delete x86-laptop-drivers.txt
docs: Note that :c:func: should no longer be used
...
Our goal is to have more and more sub-architectures to join the
ARM multi-platform, and support them in a single configuration.
Remove the ARM SUBARCH support because it is ugly.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In my view, most of headers can be self-contained. So, it would be
tedious to add every header to header-test-y explicitly. We usually
end up with "all headers with some exceptions".
There are two types in exceptions:
[1] headers that are never compiled as standalone units
For examples, include/linux/compiler-gcc.h is not intended for
direct inclusion. We should always exclude such ones.
[2] headers that are conditionally compiled as standalone units
Some headers can be compiled only for particular architectures.
For example, include/linux/arm-cci.h can be compiled only for
arm/arm64 because it requires <asm/arm-cci.h> to exist.
Clang can compile include/soc/nps/mtm.h only for arc because
it contains an arch-specific register in inline assembler.
So, you can write Makefile like this:
header-test- += linux/compiler-gcc.h
header-test-$(CONFIG_ARM) += linux/arm-cci.h
header-test-$(CONFIG_ARM64) += linux/arm-cci.h
header-test-$(CONFIG_ARC) += soc/nps/mtm.h
The new syntax header-test-pattern-y will be useful to specify
"the rest".
The typical usage is like this:
header-test-pattern-y += */*.h
This will add all the headers in sub-directories to the test coverage,
excluding $(header-test-). In this regards, header-test-pattern-y
behaves like a weaker variant of header-test-y.
Caveat:
The patterns in header-test-pattern-y are prefixed with $(srctree)/$(src)/
but not $(objtree)/$(obj)/. Stale generated headers are often left over
when you traverse the git history without cleaning. Wildcard patterns for
$(objtree) may match to stale headers, which could fail to compile.
One pitfall is $(srctree)/$(src)/ and $(objtree)/$(obj)/ point to the
same directory for in-tree building. So, header-test-pattern-y should
be used with care since it can potentially match to stale headers.
Caveat2:
You could use wildcard for header-test-. For example,
header-test- += asm-generic/%
... will exclude headers in asm-generic directory. Unfortunately, the
wildcard character is '%' instead of '*' here because this is evaluated
by $(filter-out ...) whereas header-test-pattern-y is evaluated by
$(wildcard ...). This is a kludge, but seems useful in some places...
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Jani Nikula <jani.nikula@intel.com>
header-test-y does not work with headers in sub-directories.
For example, you may want to write a Makefile, like this:
include/linux/Kbuild:
header-test-y += mtd/nand.h
This entry will create a wrapper include/linux/mtd/nand.hdrtest.c
with the following content:
#include "mtd/nand.h"
To make this work, we need to add $(srctree)/include/linux to the
header search path. It would be tedious to add ccflags-y.
Instead, we could change the *.hdrtest.c rule to wrap:
#include "nand.h"
This works for in-tree build since #include "..." searches in the
relative path from the header with this directive. For O=... build,
we need to add $(srctree)/include/linux/mtd to the header search path,
which will be even more tedious.
After all, I thought it would be handier to compile headers directly
without creating wrappers.
I added a new build rule to compile %.h into %.h.s
The target is %.h.s instead of %.h.o because it is slightly faster.
Also, as for GCC, an empty assembly is smaller than an empty object.
I wrote the build rule:
$(CC) $(c_flags) -S -o $@ -x c /dev/null -include $<
instead of:
$(CC) $(c_flags) -S -o $@ -x c $<
Both work fine with GCC, but the latter is bad for Clang.
This comes down to the difference in the -Wunused-function policy.
GCC does not warn about unused 'static inline' functions at all.
Clang does not warn about the ones in included headers, but does
about the ones in the source. So, we should handle headers as
headers, not as source files.
In fact, this has been hidden since commit abb2ea7dfd ("compiler,
clang: suppress warning for unused static inline functions"), but we
should not rely on that.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Jani Nikula <jani.nikula@intel.com>
Pull locking updates from Ingo Molnar:
"The main changes in this cycle are:
- rwsem scalability improvements, phase #2, by Waiman Long, which are
rather impressive:
"On a 2-socket 40-core 80-thread Skylake system with 40 reader
and writer locking threads, the min/mean/max locking operations
done in a 5-second testing window before the patchset were:
40 readers, Iterations Min/Mean/Max = 1,807/1,808/1,810
40 writers, Iterations Min/Mean/Max = 1,807/50,344/151,255
After the patchset, they became:
40 readers, Iterations Min/Mean/Max = 30,057/31,359/32,741
40 writers, Iterations Min/Mean/Max = 94,466/95,845/97,098"
There's a lot of changes to the locking implementation that makes
it similar to qrwlock, including owner handoff for more fair
locking.
Another microbenchmark shows how across the spectrum the
improvements are:
"With a locking microbenchmark running on 5.1 based kernel, the
total locking rates (in kops/s) on a 2-socket Skylake system
with equal numbers of readers and writers (mixed) before and
after this patchset were:
# of Threads Before Patch After Patch
------------ ------------ -----------
2 2,618 4,193
4 1,202 3,726
8 802 3,622
16 729 3,359
32 319 2,826
64 102 2,744"
The changes are extensive and the patch-set has been through
several iterations addressing various locking workloads. There
might be more regressions, but unless they are pathological I
believe we want to use this new implementation as the baseline
going forward.
- jump-label optimizations by Daniel Bristot de Oliveira: the primary
motivation was to remove IPI disturbance of isolated RT-workload
CPUs, which resulted in the implementation of batched jump-label
updates. Beyond the improvement of the real-time characteristics
kernel, in one test this patchset improved static key update
overhead from 57 msecs to just 1.4 msecs - which is a nice speedup
as well.
- atomic64_t cross-arch type cleanups by Mark Rutland: over the last
~10 years of atomic64_t existence the various types used by the
APIs only had to be self-consistent within each architecture -
which means they became wildly inconsistent across architectures.
Mark puts and end to this by reworking all the atomic64
implementations to use 's64' as the base type for atomic64_t, and
to ensure that this type is consistently used for parameters and
return values in the API, avoiding further problems in this area.
- A large set of small improvements to lockdep by Yuyang Du: type
cleanups, output cleanups, function return type and othr cleanups
all around the place.
- A set of percpu ops cleanups and fixes by Peter Zijlstra.
- Misc other changes - please see the Git log for more details"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (82 commits)
locking/lockdep: increase size of counters for lockdep statistics
locking/atomics: Use sed(1) instead of non-standard head(1) option
locking/lockdep: Move mark_lock() inside CONFIG_TRACE_IRQFLAGS && CONFIG_PROVE_LOCKING
x86/jump_label: Make tp_vec_nr static
x86/percpu: Optimize raw_cpu_xchg()
x86/percpu, sched/fair: Avoid local_clock()
x86/percpu, x86/irq: Relax {set,get}_irq_regs()
x86/percpu: Relax smp_processor_id()
x86/percpu: Differentiate this_cpu_{}() and __this_cpu_{}()
locking/rwsem: Guard against making count negative
locking/rwsem: Adaptive disabling of reader optimistic spinning
locking/rwsem: Enable time-based spinning on reader-owned rwsem
locking/rwsem: Make rwsem->owner an atomic_long_t
locking/rwsem: Enable readers spinning on writer
locking/rwsem: Clarify usage of owner's nonspinaable bit
locking/rwsem: Wake up almost all readers in wait queue
locking/rwsem: More optimal RT task handling of null owner
locking/rwsem: Always release wait_lock before waking up tasks
locking/rwsem: Implement lock handoff to prevent lock starvation
locking/rwsem: Make rwsem_spin_on_owner() return owner state
...
gcc asan instrumentation emits the following sequence to store frame pc
when the kernel is built with CONFIG_RELOCATABLE:
debug/vsprintf.s:
.section .data.rel.ro.local,"aw"
.align 8
.LC3:
.quad .LASANPC4826@GOTOFF
.text
.align 8
.type number, @function
number:
.LASANPC4826:
and in case reloc is issued for LASANPC label it also gets into .symtab
with the same address as actual function symbol:
$ nm -n vmlinux | grep 0000000001397150
0000000001397150 t .LASANPC4826
0000000001397150 t number
In the end kernel backtraces are almost unreadable:
[ 143.748476] Call Trace:
[ 143.748484] ([<000000002da3e62c>] .LASANPC2671+0x114/0x190)
[ 143.748492] [<000000002eca1a58>] .LASANPC2612+0x110/0x160
[ 143.748502] [<000000002de9d830>] print_address_description+0x80/0x3b0
[ 143.748511] [<000000002de9dd64>] __kasan_report+0x15c/0x1c8
[ 143.748521] [<000000002ecb56d4>] strrchr+0x34/0x60
[ 143.748534] [<000003ff800a9a40>] kasan_strings+0xb0/0x148 [test_kasan]
[ 143.748547] [<000003ff800a9bba>] kmalloc_tests_init+0xe2/0x528 [test_kasan]
[ 143.748555] [<000000002da2117c>] .LASANPC4069+0x354/0x748
[ 143.748563] [<000000002dbfbb16>] do_init_module+0x136/0x3b0
[ 143.748571] [<000000002dbff3f4>] .LASANPC3191+0x2164/0x25d0
[ 143.748580] [<000000002dbffc4c>] .LASANPC3196+0x184/0x1b8
[ 143.748587] [<000000002ecdf2ec>] system_call+0xd8/0x2d8
Since LASANPC labels are not even unique and get into .symtab only due
to relocs filter them out in kallsyms.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Previously steam_open.cocci was treating only wait_event_.* - e.g.
wait_event_interruptible - as a blocking operation. However e.g.
wait_for_completion_interruptible is also blocking, and so from this
point of view it would be more logical to treat all wait_.* as a
blocking point.
The logic of this change actually came up for real when
drivers/pci/switch/switchtec.c changed from using
wait_event_interruptible to wait_for_completion_interruptible:
https://lore.kernel.org/linux-pci/20190413170056.GA11293@deco.navytux.spb.ru/https://lore.kernel.org/linux-pci/20190415145456.GA15280@deco.navytux.spb.ru/https://lore.kernel.org/linux-pci/20190415154102.GB17661@deco.navytux.spb.ru/
For a driver that uses nonseekable_open with read/write having stream
semantic and read also calling e.g. wait_for_completion_interruptible,
running stream_open.cocci before this patch would produce:
WARNING: <driver>_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
while after this patch it will report:
ERROR: <driver>_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
Signed-off-by: Kirill Smelkov <kirr@nexedi.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The Linux coding style tolerates long string literals so that
the provided information can be easier found also by search tools
like grep.
Thus simplify a message construction in a SmPL rule by concatenating text
with two plus operators less.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
There is a spelling mistake in "changable", it is corrected to
"changeable" and all call sites are updated accordingly.
Signed-off-by: Marco Ammon <marco.ammon@fau.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
An impending change to enable HAVE_C_RECORDMCOUNT on powerpc leads to
warnings such as the following:
# modprobe kprobe_example
ftrace-powerpc: Not expected bl: opcode is 3c4c0001
WARNING: CPU: 0 PID: 227 at kernel/trace/ftrace.c:2001 ftrace_bug+0x90/0x318
Modules linked in:
CPU: 0 PID: 227 Comm: modprobe Not tainted 5.2.0-rc6-00678-g1c329100b942 #2
NIP: c000000000264318 LR: c00000000025d694 CTR: c000000000f5cd30
REGS: c000000001f2b7b0 TRAP: 0700 Not tainted (5.2.0-rc6-00678-g1c329100b942)
MSR: 900000010282b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]> CR: 28228222 XER: 00000000
CFAR: c0000000002642fc IRQMASK: 0
<snip>
NIP [c000000000264318] ftrace_bug+0x90/0x318
LR [c00000000025d694] ftrace_process_locs+0x4f4/0x5e0
Call Trace:
[c000000001f2ba40] [0000000000000004] 0x4 (unreliable)
[c000000001f2bad0] [c00000000025d694] ftrace_process_locs+0x4f4/0x5e0
[c000000001f2bb90] [c00000000020ff10] load_module+0x25b0/0x30c0
[c000000001f2bd00] [c000000000210cb0] sys_finit_module+0xc0/0x130
[c000000001f2be20] [c00000000000bda4] system_call+0x5c/0x70
Instruction dump:
419e0018 2f83ffff 419e00bc 2f83ffea 409e00cc 4800001c 0fe00000 3c62ff96
39000001 39400000 386386d0 480000c4 <0fe00000> 3ce20003 39000001 3c62ff96
---[ end trace 4c438d5cebf78381 ]---
ftrace failed to modify
[<c0080000012a0008>] 0xc0080000012a0008
actual: 01:00:4c:3c
Initializing ftrace call sites
ftrace record flags: 2000000
(0)
expected tramp: c00000000006af4c
Looking at the relocation records in __mcount_loc shows a few spurious
entries:
RELOCATION RECORDS FOR [__mcount_loc]:
OFFSET TYPE VALUE
0000000000000000 R_PPC64_ADDR64 .text.unlikely+0x0000000000000008
0000000000000008 R_PPC64_ADDR64 .text.unlikely+0x0000000000000014
0000000000000010 R_PPC64_ADDR64 .text.unlikely+0x0000000000000060
0000000000000018 R_PPC64_ADDR64 .text.unlikely+0x00000000000000b4
0000000000000020 R_PPC64_ADDR64 .init.text+0x0000000000000008
0000000000000028 R_PPC64_ADDR64 .init.text+0x0000000000000014
The first entry in each section is incorrect. Looking at the
relocation records, the spurious entries correspond to the
R_PPC64_ENTRY records:
RELOCATION RECORDS FOR [.text.unlikely]:
OFFSET TYPE VALUE
0000000000000000 R_PPC64_REL64 .TOC.-0x0000000000000008
0000000000000008 R_PPC64_ENTRY *ABS*
0000000000000014 R_PPC64_REL24 _mcount
<snip>
The problem is that we are not validating the return value from
get_mcountsym() in sift_rel_mcount(). With this entry, mcountsym is 0,
but Elf_r_sym(relp) also ends up being 0. Fix this by ensuring
mcountsym is valid before processing the entry.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
When there is not enough space on your storage device, the build will
fail with 'No space left on device' error message.
The reason is obvious from the message, so you will free up some disk
space, then you will resume the build.
However, sometimes you may still see a mysterious error message:
unterminated call to function 'wildcard': missing ')'.
If you run out of the disk space, fixdep may end up with generating
incomplete .*.cmd files.
For example, if the disk-full error occurs while fixdep is running
print_dep(), the .*.cmd might be truncated like this:
$(wildcard include/config/
When you run 'make' next time, this broken .*.cmd will be included,
then Make will terminate parsing since it is a wrong syntax.
Once this happens, you need to run 'make clean' or delete the broken
.*.cmd file manually.
Even if you do not see any error message, the .*.cmd files after any
error could be potentially incomplete, and unreliable. You may miss
the re-compilation due to missing header dependency.
If printf() cannot output the string for disk shortage or whatever
reason, it returns a negative value, but currently fixdep does not
check it at all. Consequently, fixdep *successfully* generates a
broken .*.cmd file. Make never notices that since fixdep exits with 0,
which means success.
Given the intended usage of fixdep, it must respect the return value
of not only malloc(), but also printf() and putchar().
This seems a long-standing issue since the introduction of fixdep.
In old days, Kbuild tried to provide an extra safety by letting fixdep
output to a temporary file and renaming it after everything is done:
scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(dot-target).tmp;\
rm -f $(depfile); \
mv -f $(dot-target).tmp $(dot-target).cmd)
It was no help to avoid the current issue; fixdep successfully created
a truncated tmp file, which would be renamed to a .*.cmd file.
This problem should be fixed by propagating the error status to the
build system because:
[1] Since commit 9c2af1c737 ("kbuild: add .DELETE_ON_ERROR special
target"), Make will delete the target automatically on any failure
in the recipe.
[2] Since commit 392885ee82 ("kbuild: let fixdep directly write to
.*.cmd files"), .*.cmd file is included only when the corresponding
target already exists.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The string returned by $(filter-out ...) does not contain any leading
or trailing spaces.
With the previous commit, 'any-prereq' no longer contains any
excessive spaces.
Nor does 'cmd-check' since it expands to a $(filter-out ...) call.
So, only the space that matters is the one between 'any-prereq'
and 'cmd-check'.
By removing it from the code, we can save $(strip ...) evaluation.
This refactoring is possible because $(any-prereq)$(cmd-check) is only
passed to the first argument of $(if ...), so we are only interested
in whether or not it is empty.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The string returned by $(filter-out ...) does not contain any leading
or trailing spaces.
So, only the space that matters is the one between
$(filter-out $(PHONY),$?)
and
$(filter-out $(PHONY) $(wildcard $^),$^)
By removing it from the code, we can save $(strip ...) evaluation.
This refactoring is possible because $(any-prereq) is only passed to
the first argument of $(if ...), so we are only interested in whether
or not it is empty.
This is also the prerequisite for the next commit.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I prefer 'cmd-check' for consistency.
We have 'echo-cmd', 'cmd', 'cmd_and_fixdep', etc. in this file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Build of htmldocs fails for out-of-tree builds:
$ make V=1 O=~/build/kernel/ htmldocs
make -C /home/rppt/build/kernel -f /home/rppt/git/linux-docs/Makefile htmldocs
make[1]: Entering directory '/home/rppt/build/kernel'
make -f /home/rppt/git/linux-docs/scripts/Makefile.build obj=scripts/basic
rm -f .tmp_quiet_recordmcount
make -f /home/rppt/git/linux-docs/scripts/Makefile.build obj=Documentation htmldocs
Can't open Documentation/conf.py at /home/rppt/git/linux-docs/scripts/sphinx-pre-install line 230.
/home/rppt/git/linux-docs/Documentation/Makefile:80: recipe for target 'htmldocs' failed
make[2]: *** [htmldocs] Error 2
The scripts/sphinx-pre-install is trying to open files in the current
directory which is $KBUILD_OUTPUT rather than in $srctree.
Fix it.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
We now have better automarkup in sphinx itself and, besides, this markup
was incorrect and left :c:func: gunk in the processed docs. Sort of
discouraging that nobody ever noticed...:)
As a first step toward the removal of impenetrable regex magic from
kernel-doc it's a tiny one, but you have to start somewhere.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
POSIX says the -n option must be a positive decimal integer. Not all
implementations of head(1) support negative numbers meaning offset from
the end of the file.
Instead, the sed expression '$d' has the same effect of removing the
last line of the file.
Signed-off-by: Michael Forney <mforney@mforney.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190618053306.730-1-mforney@mforney.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge 4.19.56 into android-4.19
Changes in 4.19.56
tracing: Silence GCC 9 array bounds warning
objtool: Support per-function rodata sections
gcc-9: silence 'address-of-packed-member' warning
ovl: support the FS_IOC_FS[SG]ETXATTR ioctls
ovl: fix wrong flags check in FS_IOC_FS[SG]ETXATTR ioctls
ovl: make i_ino consistent with st_ino in more cases
ovl: detect overlapping layers
ovl: don't fail with disconnected lower NFS
ovl: fix bogus -Wmaybe-unitialized warning
s390/jump_label: Use "jdd" constraint on gcc9
s390/ap: rework assembler functions to use unions for in/out register variables
mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning
mmc: core: API to temporarily disable retuning for SDIO CRC errors
mmc: core: Add sdio_retune_hold_now() and sdio_retune_release()
mmc: core: Prevent processing SDIO IRQs when the card is suspended
scsi: ufs: Avoid runtime suspend possibly being blocked forever
usb: chipidea: udc: workaround for endpoint conflict issue
xhci: detect USB 3.2 capable host controllers correctly
usb: xhci: Don't try to recover an endpoint if port is in error state.
IB/hfi1: Validate fault injection opcode user input
IB/hfi1: Silence txreq allocation warnings
iio: temperature: mlx90632 Relax the compatibility check
Input: synaptics - enable SMBus on ThinkPad E480 and E580
Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
Input: silead - add MSSL0017 to acpi_device_id
apparmor: fix PROFILE_MEDIATES for untrusted input
apparmor: enforce nullbyte at end of tag string
brcmfmac: sdio: Disable auto-tuning around commands expected to fail
brcmfmac: sdio: Don't tune while the card is off
ARC: fix build warnings
dmaengine: dw-axi-dmac: fix null dereference when pointer first is null
dmaengine: sprd: Fix block length overflow
ARC: [plat-hsdk]: Add missing multicast filter bins number to GMAC node
ARC: [plat-hsdk]: Add missing FIFO size entry in GMAC node
fpga: dfl: afu: Pass the correct device to dma_mapping_error()
fpga: dfl: Add lockdep classes for pdata->lock
parport: Fix mem leak in parport_register_dev_model
parisc: Fix compiler warnings in float emulation code
IB/rdmavt: Fix alloc_qpn() WARN_ON()
IB/hfi1: Insure freeze_work work_struct is canceled on shutdown
IB/{qib, hfi1, rdmavt}: Correct ibv_devinfo max_mr value
IB/hfi1: Validate page aligned for a given virtual address
MIPS: uprobes: remove set but not used variable 'epc'
xtensa: Fix section mismatch between memblock_reserve and mem_reserve
kselftest/cgroup: fix unexpected testing failure on test_memcontrol
kselftest/cgroup: fix unexpected testing failure on test_core
kselftest/cgroup: fix incorrect test_core skip
selftests: vm: install test_vmalloc.sh for run_vmtests
net: dsa: mv88e6xxx: avoid error message on remove from VLAN 0
net: hns: Fix loopback test failed at copper ports
mdesc: fix a missing-check bug in get_vdev_port_node_info()
sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
net: ethernet: mediatek: Use hw_feature to judge if HWLRO is supported
net: ethernet: mediatek: Use NET_IP_ALIGN to judge if HW RX_2BYTE_OFFSET is enabled
drm/arm/mali-dp: Add a loop around the second set CVAL and try 5 times
drm/arm/hdlcd: Actually validate CRTC modes
drm/arm/hdlcd: Allow a bit of clock tolerance
nvmet: fix data_len to 0 for bdev-backed write_zeroes
scripts/checkstack.pl: Fix arm64 wrong or unknown architecture
scsi: ufs: Check that space was properly alloced in copy_query_response
scsi: smartpqi: unlock on error in pqi_submit_raid_request_synchronous()
net: ipvlan: Fix ipvlan device tso disabled while NETIF_F_IP_CSUM is set
s390/qeth: fix VLAN attribute in bridge_hostnotify udev event
hwmon: (core) add thermal sensors only if dev->of_node is present
hwmon: (pmbus/core) Treat parameters as paged if on multiple pages
arm64: Silence gcc warnings about arch ABI drift
nvme: Fix u32 overflow in the number of namespace list calculation
btrfs: start readahead also in seed devices
can: xilinx_can: use correct bittiming_const for CAN FD core
can: flexcan: fix timeout when set small bitrate
can: purge socket error queue on sock destruct
riscv: mm: synchronize MMU after pte change
powerpc/bpf: use unsigned division instruction for 64-bit operations
ARM: imx: cpuidle-imx6sx: Restrict the SW2ISO increase to i.MX6SX
ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
arm64/sve: <uapi/asm/ptrace.h> should not depend on <uapi/linux/prctl.h>
arm64: ssbd: explicitly depend on <linux/prctl.h>
drm/vmwgfx: Use the backdoor port if the HB port is not available
staging: erofs: add requirements field in superblock
Bluetooth: Align minimum encryption key size for LE and BR/EDR connections
Bluetooth: Fix regression with minimum encryption key size alignment
SMB3: retry on STATUS_INSUFFICIENT_RESOURCES instead of failing write
cfg80211: fix memory leak of wiphy device name
mac80211: drop robust management frames from unknown TA
{nl,mac}80211: allow 4addr AP operation on crypto controlled devices
mac80211: handle deauthentication/disassociation from TDLS peer
nl80211: fix station_info pertid memory leak
mac80211: Do not use stack memory with scatterlist for GMAC
x86/resctrl: Don't stop walking closids when a locksetup group is found
powerpc/mm/64s/hash: Reallocate context ids on fork
Linux 4.19.56
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 4f45d62a52 ]
The following error occurs for the `make ARCH=arm64 checkstack` case:
aarch64-linux-gnu-objdump -d vmlinux $(find . -name '*.ko') | \
perl ./scripts/checkstack.pl arm64
wrong or unknown architecture "arm64"
As suggested by Masahiro Yamada, fix the above error using regular
expressions in the same way it was fixed for the `ARCH=x86` case via
commit fda9f9903b ("scripts/checkstack.pl: automatically handle
32-bit and 64-bit mode for ARCH=x86").
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Since commit d5470d1443 ("kbuild: re-implement Makefile.headersinst
without recursion"), headers_install emits an ugly warning.
$ make headers_install
[ snip ]
UPD include/generated/uapi/linux/version.h
find: ‘./include/uapi/Kbuild’: No such file or directory
HDRINST usr/include/video/uvesafb.h
...
This happens for GNU Make <= 4.2.1
When I wrote that commit, I missed this warning because I was using the
state-of-the-art Make version compiled from the git tree.
$(wildcard $(src)/*/) is intended to match to only existing directories
since it has a trailing slash, but actually matches to regular files too.
(include/uapi/Kbuild in this case)
This is a bug of GNU Make, and was fixed by:
| commit b7acb10e86dc8f5fdf2a2bbd87e1059c315e31d6
| Author: spagoveanu@gmail.com <spagoveanu@gmail.com>
| Date: Wed Jun 20 02:03:48 2018 +0300
|
| * src/dir.c: Preserve glob d_type field
We need to cater to old Make versions. Add '$(filter %/,...) to filter
out the regular files.
Fixes: d5470d1443 ("kbuild: re-implement Makefile.headersinst without recursion")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
__uint128_t crops up in a few files that export symbols to modules, so
teach genksyms about it and the other GCC built-in 128-bit integer types
so that we don't end up skipping the CRC generation for some symbols due
to the parser failing to spot them:
| WARNING: EXPORT symbol "kernel_neon_begin" [vmlinux] version
| generation failed, symbol will not be versioned.
| ld: arch/arm64/kernel/fpsimd.o: relocation R_AARCH64_ABS32 against
| `__crc_kernel_neon_begin' can not be used when making a shared
| object
| ld: arch/arm64/kernel/fpsimd.o:(.data+0x0): dangerous relocation:
| unsupported relocation
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This flag turns off several other warnings that would
be useful. Most notably -warn_unused_result is disabled.
All of the following warnings are currently disabled:
UnusedValue
|-UnusedComparison
|-warn_unused_comparison
|-UnusedResult
|-warn_unused_result
|-UnevaluatedExpression
|-PotentiallyEvaluatedExpression
|-warn_side_effects_typeid
|-warn_side_effects_unevaluated_context
|-warn_unused_expr
|-warn_unused_voidptr
|-warn_unused_container_subscript_expr
|-warn_unused_call
With this flag removed there are ~10 warnings.
Patches have been submitted for each of these warnings.
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: clang-built-linux@googlegroups.com
Link: https://github.com/ClangBuiltLinux/linux/issues/520
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This helps fine very dodgy behavior through both -Wuninitialized
(warning that a variable is always uninitialized) and
-Wsometimes-uninitialized (warning that a variable is sometimes
uninitialized, like GCC's -Wmaybe-uninitialized). These warnings
catch things that GCC doesn't such as:
https://lore.kernel.org/lkml/86649ee4-9794-77a3-502c-f4cd10019c36@lca.pw/
We very much want to catch these so turn this warning on so that CI is
aware of it.
Link: https://github.com/ClangBuiltLinux/linux/issues/381
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Pull in SPDX tag conversion from upstream dtc. This will replace the
conversion done in the kernel tree copy in v5.2-rc2.
This adds the following commits from upstream:
702c1b6c0e73 README.license: Update to reflect SPDX tag usage
4097bbffcf1d dtc: Add GPLv2 SPDX tags to files missing license text
94f87cd5b7c5 libfdt: Add dual GPL/BSD SPDX tags to files missing license text
c4ffc05574b1 tests: Replace license boilerplate with SPDX tags
a5ac29baacd2 pylibfdt: Replace dual GPLv2/BSD license boilerplate with SPDX tags
7fb0f4db2eb7 libfdt: Replace GPL/BSD boilerplate/reference with SPDX tags
acfe84f2c47e dtc: Replace GPLv2 boilerplate/reference with SPDX tags
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Sometimes, we just want the parser to retrieve all symbols from
ABI, in order to check for parsing errors. So, add a new
"validate" command.
While here, update the man/help pages.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The ABI README file doesn't provide any meaning for a Where:
tag. Yet, a few ABI symbols use it. So, make the parser
handle it, emitting a warning.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The file the Documentation/ABI/testing/sysfs-class-power has
voltage_min, voltage_max and voltage_now symbols duplicated.
They are defined first for "General Properties" and then for
"USB Properties".
This cause those warnings:
get_abi.pl rest --dir $srctree/Documentation/ABI/testing:26933: WARNING: Duplicate explicit target name: "abi_sys_class_power_supply_supply_name_voltage_max".
get_abi.pl rest --dir $srctree/Documentation/ABI/testing:26968: WARNING: Duplicate explicit target name: "abi_sys_class_power_supply_supply_name_voltage_min".
get_abi.pl rest --dir $srctree/Documentation/ABI/testing:27008: WARNING: Duplicate explicit target name: "abi_sys_class_power_supply_supply_name_voltage_now".
And, as the references are not valid, it will also generate
warnings about links to undefined references.
Fix it by storing labels into a hash table and, when a duplicated
one is found, appending random characters at the end.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A few files are failing to parse:
Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
Documentation/ABI/testing/sysfs-class-pktcdvd
Documentation/ABI/testing/sysfs-bus-nfit
On all three files, the problem is that there is a ":" character
at the initial file description.
Improve the parse in order to handle those special cases.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Several entries at the ABI have multiple What: with the same
description.
Instead of showing those symbols as sections, let's show them
as tables. That makes easier to read on the final output,
and avoid too much recursion at Sphinx parsing.
We need to put file references at the end, as we don't want
non-file tables to be mangled with other entries.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change its syntax to allow switching between ReST output mode
and a new search mode, with allows to seek for ABI symbols
using regex.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of using a ReST compilant label while parsing,
move the label to ReST output. That makes the parsing logic
more generic, allowing it to provide other types of output.
As a side effect, now all files used to generate the output
will be output. We can later add command line arguments to
filter.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The usage of literal blocks make the document very complex,
causing the browser to take a long time to load.
On most ABI descriptions, they're a plain text, and don't
require a literal block.
So, add a logic there with identifies when a literal block
is needed.
As, on literal blocks, we need to respect the original
document space, the most complex part of this patch is
to preserve the original spacing where needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It sounds usefult o parse files with has some text at the
beginning. Add support for it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a script to parse the Documentation/ABI files and produce
an output with all entries inside an ABI (sub)directory.
Right now, it outputs its contents on ReST format. It shouldn't
be hard to make it produce other kind of outputs, since the ABI
file parser is implemented in separate than the output generator.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert the various documents at the driver-model, preparing
them to be part of the driver-api book.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
gplv2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 58 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this file is subject to the terms and conditions of the gnu general
public license v2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081203.508532280@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Right now kernel hardening options are scattered around various Kconfig
files. This can be a central place to collect these kinds of options
going forward. This is initially populated with the memory initialization
options from the gcc-plugins.
The Android backport only moves the config options available in 4.19 at
the moment.
Change-Id: Iadf83f71da5410bad0aff01309365de0809fde96
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
(cherry picked from commit 9f671e5815)
Bug: 133428616
Signed-off-by: Alexander Potapenko <glider@google.com>
Sometimes it's useful to be able to explicitly ensure certain headers
remain self-contained, i.e. that they are compilable as standalone
units, by including and/or forward declaring everything they depend on.
Add special target header-test-y where individual Makefiles can add
headers to be tested if CONFIG_HEADER_TEST is enabled. This will
generate a dummy C file per header that gets built as part of extra-y.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
It is absolutely fine to add extra sanity checks in package scripts,
but it is not necessary to do so.
This is already covered by the daily compile-testing (0day bot etc.)
because headers_check is run as a part of the normal build process
when CONFIG_HEADERS_CHECK=y.
Replace it with the newly-added "make headers".
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Now that headers_install.sh is invoked per file, remove the for-loop
in the shell script.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Now that hdr-inst is used only in the top Makefile, move it there
from scripts/Kbuild.include.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since commit fcc8487d47 ("uapi: export all headers under uapi
directories"), the headers in uapi directories are all exported by
default although exceptional cases are still allowed by the syntax
'no-export-headers'.
The traditional directory descending has been kept (in a somewhat
hacky way), but it is actually unneeded.
Get rid of it to simplify the code.
Also, handle files one by one instead of the previous per-directory
processing. This will emit much more log, but I like it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In Linux build system, build targets and installation targets are
separated.
Examples are:
- 'make vmlinux' -> 'make install'
- 'make modules' -> 'make modules_install'
- 'make dtbs' -> 'make dtbs_install'
- 'make vdso' -> 'make vdso_install'
The intention is to run the build targets under the normal privilege,
then the installation targets under the root privilege since we need
the write permission to the system directories.
We have 'make headers_install' but the corresponding 'make headers'
stage does not exist. The purpose of headers_install is to provide
the kernel interface to C library. So, nobody would try to install
headers to /usr/include directly.
If 'sudo make INSTALL_HDR_PATH=/usr/include headers_install' were run,
some build artifacts in the kernel tree would be owned by root because
some of uapi headers are generated by 'uapi-asm-generic', 'archheaders'
targets.
Anyway, I believe it makes sense to split the header installation into
two stages.
[1] 'make headers'
Process headers in uapi directories by scripts/headers_install.sh
and copy them to usr/include
[2] 'make headers_install'
Copy '*.h' verbatim from usr/include to $(INSTALL_HDR_PATH)/include
For the backward compatibility, 'headers_install' depends on 'headers'.
Some samples expect uapi headers in usr/include. So, the 'headers'
target is useful to build up them in the fixed location usr/include
irrespective of INSTALL_HDR_PATH.
Another benefit is to stop polluting the final destination with the
time-stamp files '.install' and '.check'. Maybe you can see them in
your toolchains.
Lastly, my main motivation is to prepare for compile-testing uapi
headers. To build something, we have to save an object and .*.cmd
somewhere. The usr/include/ will be the work directory for that.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Since commit 2aedcd098a ("kbuild: suppress annoying "... is up to date."
message"), if_changed and friends nicely suppress "is up to date" messages.
We do not need per-Makefile tricks.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
headers_install_all does not make much sense any more because different
architectures export different set of uapi/linux/ headers. As you see
in include/uapi/linux/Kbuild, the installation of a.out.h, kvm.h, and
kvm_para.h is arch-dependent. So, headers_install_all repeats the
installation/removal of them.
If somebody really thinks it is useful to do headers_install for all
architectures, it would be possible by small shell-scripting, but
the top Makefile does not have to provide entry targets just for that
purpose.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
When there's no Documentation/output directory, the script will
complain about those missing references:
Documentation/doc-guide/sphinx.rst: Documentation/output
Documentation/doc-guide/sphinx.rst: Documentation/output
Documentation/process/howto.rst: Documentation/output
Documentation/translations/it_IT/doc-guide/sphinx.rst: Documentation/output
Documentation/translations/it_IT/doc-guide/sphinx.rst: Documentation/output
Documentation/translations/it_IT/process/howto.rst: Documentation/output
Documentation/translations/ja_JP/howto.rst: Documentation/output
Documentation/translations/ko_KR/howto.rst: Documentation/output
Those are false positives, so add an ignore rule for them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion here is really trivial: just a bunch of title
markups and very few puntual changes is enough to make it to
be parsed by Sphinx and generate a nice html.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert the TCM docs to ReST format and add them to the
bookset.
This has a mix of userspace-faced and Kernelspace faced
docs. Still, it sounds a better candidate to be added at
the kernel API set of docs.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The kbuild documentation clearly shows that the documents
there are written at different times: some use markdown,
some use their own peculiar logic to split sections.
Convert everything to ReST without affecting too much
the author's style and avoiding adding uneeded markups.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge tag 'v5.2-rc4' into mauro
We need to pick up post-rc1 changes to various document files so they don't
get lost in Mauro's massive RST conversion push.
At least for ARM64 kernels compiled with the crosstoolchain from
Debian/stretch or with the toolchain from kernel.org the line number is
not decoded correctly by 'decode_stacktrace.sh':
$ echo "[ 136.513051] f1+0x0/0xc [kcrash]" | \
CROSS_COMPILE=/opt/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- \
./scripts/decode_stacktrace.sh /scratch/linux-arm64/vmlinux \
/scratch/linux-arm64 \
/nfs/debian/lib/modules/4.20.0-devel
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:68) kcrash
If addr2line from the toolchain is used the decoded line number is correct:
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:57) kcrash
Link: http://lkml.kernel.org/r/20190527083425.3763-1-manut@linutronix.de
Signed-off-by: Manuel Traut <manut@linutronix.de>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This adds the following commits from upstream:
87963ee20693 livetree: add missing type markers in generated overlay properties
825146d13dc0 Fix typos in various documentation and source files
25bb080c18d1 Update the GPL2 text to the latest revision
243176c4ce84 Fix bogus error on rebuild
ce01b21098a4 libfdt: Add FDT_CREATE_FLAG_NO_NAME_DEDUP flag that trades size for speed
fbb62754ce45 libfdt: Introduce fdt_create_with_flags()
228a44cce857 libfdt: Ensure fdt_add_property frees allocated name string on failure
8f695676227b Avoid assertion in check_interrupts_property()
5c3513f68921 Link tools and tests against libfdt shared library
00f9febf9c16 tests: Rename tests.sh to testutils.sh
c5d45188f923 Clean up LDLIBS handling
6ef8fcd05b74 Rebuild libfdt shared object if versioning linker script changes
26ee65a16c38 Use Python3 by default
cca6546244cb libfdt: Make fdt_get_max_phandle() an inline
730875016a6a libfdt: Add phandle generation helper
7dfb61ba96b1 libfdt: Use fdt_find_max_phandle()
2bc5b66d7f6c libfdt: Add new maximum phandle lookup function
7fcf8208b8a9 libfdt: add fdt_append_addrrange()
ae795b2db7a4 checks: Do not omit nodes with labels if symbol generation is requested
eac2ad495b29 Update version.lds again
f67b47135523 Revert "libfdt: Add phandle generation helper"
54ea41c22415 libfdt: Add phandle generation helper
4762ad051ee0 checks: Fix spelling in check_graph_endpoint
d37f6b20107e Bump version to v1.5.0
a4b1a307ff3a pylibfdt:tests: Extend the way how to find a Python module
625dd8aaf20f pylibfdt: Change how passing tests are recognized
364631626bb7 pylibfdt: Test fdt.setprop take bytes on Python 3, add error handling
cb0f454f73cc pylibfdt: check_err accepts only integer as a first argument.
4b68c6b3605a pylibfdt: Proper handling of bytes/unicode strings and octal literals
78e113e81c9d Use PRIxPTR for printing uintptr_t values
ea7a8f6dad67 libfdt: Fix FDT_ERR_NOTFOUND typos in documentation
5aafd7ca43e0 libfdt: Fix fdt_getprop_by_offset() parameter name in documentation
7cbc550f903b checks: Add unit address check if node is enabled
Signed-off-by: Rob Herring <robh@kernel.org>
Also add unpack_bootimg and update mkbootimg
AOSP 96fd8874ef8e ("Check DTB image size for boot image header version 2 and above")
Change-Id: I4582913b21f711c84d62bed0ffd024b583a094f7
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
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Merge 4.19.49 into android-4.19
Changes in 4.19.49
sparc64: Fix regression in non-hypervisor TLB flush xcall
include/linux/bitops.h: sanitize rotate primitives
xhci: update bounce buffer with correct sg num
xhci: Use %zu for printing size_t type
xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
usb: xhci: avoid null pointer deref when bos field is NULL
usbip: usbip_host: fix BUG: sleeping function called from invalid context
usbip: usbip_host: fix stub_dev lock context imbalance regression
USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
USB: sisusbvga: fix oops in error path of sisusb_probe
USB: Add LPM quirk for Surface Dock GigE adapter
USB: rio500: refuse more than one device at a time
USB: rio500: fix memory leak in close after disconnect
media: usb: siano: Fix general protection fault in smsusb
media: usb: siano: Fix false-positive "uninitialized variable" warning
media: smsusb: better handle optional alignment
brcmfmac: fix NULL pointer derefence during USB disconnect
scsi: zfcp: fix missing zfcp_port reference put on -EBUSY from port_remove
scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs)
tracing: Avoid memory leak in predicate_parse()
Btrfs: fix wrong ctime and mtime of a directory after log replay
Btrfs: fix race updating log root item during fsync
Btrfs: fix fsync not persisting changed attributes of a directory
Btrfs: incremental send, fix file corruption when no-holes feature is enabled
iio: dac: ds4422/ds4424 fix chip verification
iio: adc: ti-ads8688: fix timestamp is not updated in buffer
s390/crypto: fix gcm-aes-s390 selftest failures
s390/crypto: fix possible sleep during spinlock aquired
KVM: PPC: Book3S HV: XIVE: Do not clear IRQ data of passthrough interrupts
powerpc/perf: Fix MMCRA corruption by bhrb_filter
ALSA: line6: Assure canceling delayed work at disconnection
ALSA: hda/realtek - Set default power save node to 0
ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops
KVM: s390: Do not report unusabled IDs via KVM_CAP_MAX_VCPU_ID
drm/nouveau/i2c: Disable i2c bus access after ->fini()
i2c: mlxcpld: Fix wrong initialization order in probe
i2c: synquacer: fix synquacer_i2c_doxfer() return value
tty: serial: msm_serial: Fix XON/XOFF
tty: max310x: Fix external crystal register setup
memcg: make it work on sparse non-0-node systems
kernel/signal.c: trace_signal_deliver when signal_group_exit
arm64: Fix the arm64_personality() syscall wrapper redirection
docs: Fix conf.py for Sphinx 2.0
doc: Cope with the deprecation of AutoReporter
doc: Cope with Sphinx logging deprecations
ima: show rules with IMA_INMASK correctly
evm: check hash algorithm passed to init_desc()
vt/fbcon: deinitialize resources in visual_init() after failed memory allocation
serial: sh-sci: disable DMA for uart_console
staging: vc04_services: prevent integer overflow in create_pagelist()
staging: wlan-ng: fix adapter initialization failure
cifs: fix memory leak of pneg_inbuf on -EOPNOTSUPP ioctl case
CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
Revert "lockd: Show pid of lockd for remote locks"
gcc-plugins: Fix build failures under Darwin host
drm/tegra: gem: Fix CPU-cache maintenance for BO's allocated using get_pages()
drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set
drm/sun4i: Fix sun8i HDMI PHY clock initialization
drm/sun4i: Fix sun8i HDMI PHY configuration for > 148.5 MHz
drm/rockchip: shutdown drm subsystem on shutdown
drm/lease: Make sure implicit planes are leased
Compiler Attributes: add support for __copy (gcc >= 9)
include/linux/module.h: copy __init/__exit attrs to init/cleanup_module
Revert "x86/build: Move _etext to actual end of .text"
Revert "binder: fix handling of misaligned binder object"
binder: fix race between munmap() and direct reclaim
x86/ftrace: Do not call function graph from dynamic trampolines
x86/ftrace: Set trampoline pages as executable
x86/kprobes: Set instruction page as executable
scsi: lpfc: Fix backport of faf5a744f4 ("scsi: lpfc: avoid uninitialized variable warning")
of: overlay: validate overlay properties #address-cells and #size-cells
of: overlay: set node fields from properties when add new overlay node
media: uvcvideo: Fix uvc_alloc_entity() allocation alignment
Linux 4.19.49
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 7210e06015 upstream.
The gcc-common.h file did not take into account certain macros that
might have already been defined in the build environment. This updates
the header to avoid redefining the macros, as seen on a Darwin host
using gcc 4.9.2:
HOSTCXX -fPIC scripts/gcc-plugins/arm_ssp_per_task_plugin.o - due to: scripts/gcc-plugins/gcc-common.h
In file included from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:0:
scripts/gcc-plugins/gcc-common.h:153:0: warning: "__unused" redefined
^
In file included from /usr/include/stdio.h:64:0,
from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/system.h:40,
from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/gcc-plugin.h:28,
from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/plugin.h:23,
from scripts/gcc-plugins/gcc-common.h:9,
from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:
/usr/include/sys/cdefs.h:161:0: note: this is the location of the previous definition
^
Reported-and-tested-by: "H. Nikolaus Schaller" <hns@goldelico.com>
Fixes: 189af46571 ("ARM: smp: add support for per-task stack canaries")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Until recently, if KBUILD_DEFCONFIG was not set by the arch Makefile,
the default path arch/*/defconfig was used.
The last users of the default are gone by the following commits:
- Commit f3e20ad67b ("s390: move arch/s390/defconfig to
arch/s390/configs/defconfig")
- Commit 986a13769c ("alpha: move arch/alpha/defconfig to
arch/alpha/configs/defconfig")
Let's set arch/*/configs/defconfig as a new default. This saves
KBUILD_DEFCONFIG for some architectures.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Currently, the argument for --defconfig is optional. If the argument
is not passed, the hard-coded default arch/$(ARCH)/defconfig is used.
It no longer happens in Linux since the last users of the default are
gone by the following commits:
- Commit f3e20ad67b ("s390: move arch/s390/defconfig to
arch/s390/configs/defconfig")
- Commit 986a13769c ("alpha: move arch/alpha/defconfig to
arch/alpha/configs/defconfig")
I want to kill the Linux-specific directory path embedded in the
Kconfig binary.
The --savedefconfig (reverse operation of --defconfig) requires an
argument, so it should not hurt to do likewise for --defconfig.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
With the following two commits applied, all the arch Makefiles
define KBUILD_DEFCONFIG.
- Commit f3e20ad67b ("s390: move arch/s390/defconfig to
arch/s390/configs/defconfig")
- Commit 986a13769c ("alpha: move arch/alpha/defconfig to
arch/alpha/configs/defconfig")
The first conditional in the defconfig rule is always false.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
It makes little sense to pass -Waggregate-return these days since large
part of the linux kernel rely on returning struct(s). For instance:
../include/linux/timekeeping.h: In function 'show_uptime':
../include/linux/ktime.h:91:34: error: function call has aggregate value [-Werror=aggregate-return]
#define ktime_to_timespec64(kt) ns_to_timespec64((kt))
^~~~~~~~~~~~~~~~~~~~~~
../include/linux/timekeeping.h:166:8: note: in expansion of macro 'ktime_to_timespec64'
*ts = ktime_to_timespec64(ktime_get_coarse_boottime());
Remove this warning from W=2 completely.
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Another round of SPDX header file fixes for 5.2-rc4
These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
added, based on the text in the files. We are slowly chipping away at
the 700+ different ways people tried to write the license text. All of
these were reviewed on the spdx mailing list by a number of different
people.
We now have over 60% of the kernel files covered with SPDX tags:
$ ./scripts/spdxcheck.py -v 2>&1 | grep Files
Files checked: 64533
Files with SPDX: 40392
Files with errors: 0
I think the majority of the "easy" fixups are now done, it's now the
start of the longer-tail of crazy variants to wade through.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull yet more SPDX updates from Greg KH:
"Another round of SPDX header file fixes for 5.2-rc4
These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
added, based on the text in the files. We are slowly chipping away at
the 700+ different ways people tried to write the license text. All of
these were reviewed on the spdx mailing list by a number of different
people.
We now have over 60% of the kernel files covered with SPDX tags:
$ ./scripts/spdxcheck.py -v 2>&1 | grep Files
Files checked: 64533
Files with SPDX: 40392
Files with errors: 0
I think the majority of the "easy" fixups are now done, it's now the
start of the longer-tail of crazy variants to wade through"
* tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (159 commits)
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 448
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 443
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 442
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 435
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 433
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 431
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 430
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429
...
While this doesn't make sense for production Kernels, in order to
avoid regressions when documents are touched, let's add a
check target at the make file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
To print the pathname that will be used by shell in the current
environment, 'command -v' is a standardized way. [1]
'which' is also often used in scripts, but it is less portable.
When I worked on commit bd55f96fa9 ("kbuild: refactor cc-cross-prefix
implementation"), I was eager to use 'command -v' but it did not work.
(The reason is explained below.)
I kept 'which' as before but got rid of '> /dev/null 2>&1' as I
thought it was no longer needed. Sorry, I was wrong.
It works well on my Ubuntu machine, but Alexey Brodkin reports noisy
warnings on CentOS7 when 'which' fails to find the given command in
the PATH environment.
$ which foo
which: no foo in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin)
Given that behavior of 'which' depends on system (and it may not be
installed by default), I want to try 'command -v' once again.
The specification [1] clearly describes the behavior of 'command -v'
when the given command is not found:
Otherwise, no output shall be written and the exit status shall reflect
that the name was not found.
However, we need a little magic to use 'command -v' from Make.
$(shell ...) passes the argument to a subshell for execution, and
returns the standard output of the command.
Here is a trick. GNU Make may optimize this by executing the command
directly instead of forking a subshell, if no shell special characters
are found in the command and omitting the subshell will not change the
behavior.
In this case, no shell special character is used. So, Make will try
to run it directly. However, 'command' is a shell-builtin command,
then Make would fail to find it in the PATH environment:
$ make ARCH=m68k defconfig
make: command: Command not found
make: command: Command not found
make: command: Command not found
In fact, Make has a table of shell-builtin commands because it must
ask the shell to execute them.
Until recently, 'command' was missing in the table.
This issue was fixed by the following commit:
| commit 1af314465e5dfe3e8baa839a32a72e83c04f26ef
| Author: Paul Smith <psmith@gnu.org>
| Date: Sun Nov 12 18:10:28 2017 -0500
|
| * job.c: Add "command" as a known shell built-in.
|
| This is not a POSIX shell built-in but it's common in UNIX shells.
| Reported by Nick Bowler <nbowler@draconx.ca>.
Because the latest release is GNU Make 4.2.1 in 2016, this commit is
not included in any released versions. (But some distributions may
have back-ported it.)
We need to trick Make to spawn a subshell. There are various ways to
do so:
1) Use a shell special character '~' as dummy
$(shell : ~; command -v $(c)gcc)
2) Use a variable reference that always expands to the empty string
(suggested by David Laight)
$(shell command$${x:+} -v $(c)gcc)
3) Use redirect
$(shell command -v $(c)gcc 2>/dev/null)
I chose 3) to not confuse people. The stderr would not be polluted
anyway, but it will provide extra safety, and is easy to understand.
Tested on Make 3.81, 3.82, 4.0, 4.1, 4.2, 4.2.1
[1] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/command.html
Fixes: bd55f96fa9 ("kbuild: refactor cc-cross-prefix implementation")
Cc: linux-stable <stable@vger.kernel.org> # 5.1
Reported-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation version 2 of the license
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 315 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
gpl 2 0 applies
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.220546219@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program file is free software you can redistribute it and or
modify it under the terms of the gnu general public license as
published by the free software foundation version 2 of the license
this program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details you should have received a
copy of the gnu general public license along with this program in a
file named copying if not write to the free software foundation inc
51 franklin street fifth floor boston ma 02110 1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081038.017566012@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
licensed under the gnu general public license version 2 gplv2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 5 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081036.993848054@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program file is free software you can redistribute it and or
modify it under the terms of the gnu general public license as
published by the free software foundation version 2 of the license
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081036.527324761@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
released under gplv2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.946199729@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
gpl v2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 19 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141333.108140152@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The following error occurs for the `make ARCH=arm64 checkstack` case:
aarch64-linux-gnu-objdump -d vmlinux $(find . -name '*.ko') | \
perl ./scripts/checkstack.pl arm64
wrong or unknown architecture "arm64"
As suggested by Masahiro Yamada, fix the above error using regular
expressions in the same way it was fixed for the `ARCH=x86` case via
commit fda9f9903b ("scripts/checkstack.pl: automatically handle
32-bit and 64-bit mode for ARCH=x86").
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The buildtar script might want to invoke a make, so tell the parent
make to pass the jobserver token pipe to the subcommand by prefixing
the command with a +.
This addresses the issue seen here:
/bin/sh ../scripts/package/buildtar tar-pkg
make[3]: warning: jobserver unavailable: using -j1. Add '+' to parent make rule.
See https://www.gnu.org/software/make/manual/html_node/Job-Slots.html
for more information.
Signed-off-by: Trevor Bourget <tgb.kernel@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Adding SPDX license identifier is pretty safe; however, here is one
exception.
Since commit ec8f24b7fa ("treewide: Add SPDX license identifier -
Makefile/Kconfig"), "make testconfig" would not pass.
When Kconfig detects a circular file inclusion, it displays error
messages with a file name and a line number prefixed to each line.
The unit test checks if Kconfig emits the error messages correctly
(this also checks the line number correctness).
Now that the test input has the SPDX license identifier at the very top,
the line numbers in the expected stderr should be incremented by 1.
Fixes: ec8f24b7fa ("treewide: Add SPDX license identifier - Makefile/Kconfig")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Merge 4.19.48 into android-4.19
Changes in 4.19.48
bonding/802.3ad: fix slave link initialization transition states
cxgb4: offload VLAN flows regardless of VLAN ethtype
inet: switch IP ID generator to siphash
ipv4/igmp: fix another memory leak in igmpv3_del_delrec()
ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST
ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
ipv6: Fix redirect with VRF
llc: fix skb leak in llc_build_and_send_ui_pkt()
net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT
net: fec: fix the clk mismatch in failed_reset path
net-gro: fix use-after-free read in napi_gro_frags()
net: mvneta: Fix err code path of probe
net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value
net: phy: marvell10g: report if the PHY fails to boot firmware
net: sched: don't use tc_action->order during action dump
net: stmmac: fix reset gpio free missing
usbnet: fix kernel crash after disconnect
net/mlx5: Avoid double free in fs init error unwinding path
tipc: Avoid copying bytes beyond the supplied data
net/mlx5: Allocate root ns memory using kzalloc to match kfree
net/mlx5e: Disable rxhash when CQE compress is enabled
net: stmmac: dma channel control register need to be init first
bnxt_en: Fix aggregation buffer leak under OOM condition.
net/tls: fix state removal with feature flags off
net/tls: don't ignore netdev notifications if no TLS features
crypto: vmx - ghash: do nosimd fallback manually
include/linux/compiler*.h: define asm_volatile_goto
compiler.h: give up __compiletime_assert_fallback()
jump_label: move 'asm goto' support test to Kconfig
xen/pciback: Don't disable PCI_COMMAND on PCI device reset.
Revert "tipc: fix modprobe tipc failed after switch order of device registration"
tipc: fix modprobe tipc failed after switch order of device registration
Linux 4.19.48
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit e9666d10a5 upstream.
Currently, CONFIG_JUMP_LABEL just means "I _want_ to use jump label".
The jump label is controlled by HAVE_JUMP_LABEL, which is defined
like this:
#if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
# define HAVE_JUMP_LABEL
#endif
We can improve this by testing 'asm goto' support in Kconfig, then
make JUMP_LABEL depend on CC_HAS_ASM_GOTO.
Ugly #ifdef HAVE_JUMP_LABEL will go away, and CONFIG_JUMP_LABEL will
match to the real kernel capability.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
[nc: Fix trivial conflicts in 4.19
arch/xtensa/kernel/jump_label.c doesn't exist yet
Ensured CC_HAVE_ASM_GOTO and HAVE_JUMP_LABEL were sufficiently
eliminated]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge misc fixes from Andrew Morton:
"Various fixes and followups"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm, compaction: make sure we isolate a valid PFN
include/linux/generic-radix-tree.h: fix kerneldoc comment
kernel/signal.c: trace_signal_deliver when signal_group_exit
drivers/iommu/intel-iommu.c: fix variable 'iommu' set but not used
spdxcheck.py: fix directory structures
kasan: initialize tag to 0xff in __kasan_kmalloc
z3fold: fix sheduling while atomic
scripts/gdb: fix invocation when CONFIG_COMMON_CLK is not set
mm/gup: continue VM_FAULT_RETRY processing even for pre-faults
ocfs2: fix error path kobject memory leak
memcg: make it work on sparse non-0-node systems
mm, memcg: consider subtrees in memory.events
prctl_set_mm: downgrade mmap_sem to read lock
prctl_set_mm: refactor checks from validate_prctl_map
kernel/fork.c: make max_threads symbol static
arch/arm/boot/compressed/decompress.c: fix build error due to lz4 changes
arch/parisc/configs/c8000_defconfig: remove obsoleted CONFIG_DEBUG_SLAB_LEAK
mm/vmalloc.c: fix typo in comment
lib/sort.c: fix kernel-doc notation warnings
mm: fix Documentation/vm/hmm.rst Sphinx warnings
The LICENSE directory has recently changed structure and this makes
spdxcheck fails as per below:
FAIL: "Blob or Tree named 'other' not found"
Traceback (most recent call last):
File "scripts/spdxcheck.py", line 240, in <module>
spdx = read_spdxdata(repo)
File "scripts/spdxcheck.py", line 41, in read_spdxdata
for el in lictree[d].traverse():
[...]
KeyError: "Blob or Tree named 'other' not found"
Fix the script to restore the correctness on checkpatch License checking.
References: 62be257e98 ("LICENSES: Rename other to deprecated")
References: 8ea8814fcd ("LICENSES: Clearly mark dual license only licenses")
Link: http://lkml.kernel.org/r/20190523084755.56739-1-vincenzo.frascino@arm.com
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Joe Perches <joe@perches.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
CLK_GET_RATE_NOCACHE depends on CONFIG_COMMON_CLK. Importing constants.py
when CONFIG_COMMON_CLK is not defined causes:
(gdb) lx-symbols
(...)
File "scripts/gdb/linux/proc.py", line 15, in <module>
from linux import constants
File "scripts/gdb/linux/constants.py", line 2, in <module>
LX_CLK_GET_RATE_NOCACHE = gdb.parse_and_eval("CLK_GET_RATE_NOCACHE")
gdb.error: No symbol "CLK_GET_RATE_NOCACHE" in current context.
Link: http://lkml.kernel.org/r/20190523195313.24701-1-farosas@linux.ibm.com
Fixes: e7e6f462c1 ("scripts/gdb: print cached rate in lx-clk-summary")
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here is another set of reviewed patches that adds SPDX tags to different
kernel files, based on a set of rules that are being used to parse the
comments to try to determine that the license of the file is
"GPL-2.0-or-later" or "GPL-2.0-only". Only the "obvious" versions of
these matches are included here, a number of "non-obvious" variants of
text have been found but those have been postponed for later review and
analysis.
There is also a patch in here to add the proper SPDX header to a bunch
of Kbuild files that we have missed in the past due to new files being
added and forgetting that Kbuild uses two different file names for
Makefiles. This issue was reported by the Kbuild maintainer.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on the
patches are reviewers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull yet more SPDX updates from Greg KH:
"Here is another set of reviewed patches that adds SPDX tags to
different kernel files, based on a set of rules that are being used to
parse the comments to try to determine that the license of the file is
"GPL-2.0-or-later" or "GPL-2.0-only". Only the "obvious" versions of
these matches are included here, a number of "non-obvious" variants of
text have been found but those have been postponed for later review
and analysis.
There is also a patch in here to add the proper SPDX header to a bunch
of Kbuild files that we have missed in the past due to new files being
added and forgetting that Kbuild uses two different file names for
Makefiles. This issue was reported by the Kbuild maintainer.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on
the patches are reviewers"
* tag 'spdx-5.2-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (82 commits)
treewide: Add SPDX license identifier - Kbuild
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 225
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 224
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 223
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 222
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 221
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 220
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 218
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 217
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 216
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 215
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 214
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 213
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 211
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 210
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 207
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 203
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
...
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0
Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
released under gpl v2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 15 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.895196075@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
licensed under the terms of the gnu gpl version 2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170027.911569875@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
licensed under the terms of the gnu gpl license version 2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 62 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.929121379@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 3 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [kishon] [vijay] [abraham]
[i] [kishon]@[ti] [com] this program is distributed in the hope that
it will be useful but without any warranty without even the implied
warranty of merchantability or fitness for a particular purpose see
the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [graeme] [gregory]
[gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
[kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
[hk] [hemahk]@[ti] [com] this program is distributed in the hope
that it will be useful but without any warranty without even the
implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1105 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not write to the free software foundation inc
59 temple place suite 330 boston ma 02111 1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1334 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
At DT, files are being renamed to jason. Teach the script how to
handle such renames when used in fix mode.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There's a false positive on perf/util:
tools/perf/util/s390-cpumsf.c: Documentation/perf.data-file-format.txt
The file is there at tools/perf/Documentation/, but the logic
with detects relative documentation references inside tools is
not capable of detecting it.
So, improve it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There are at least two cases where a documentation file was gone
for good, but the text still mentions it:
1) drivers/vhost/vhost.c:
the reference for Documentation/virtual/lguest/lguest.c is just
to give credits to the original work that vhost replaced;
2) Documentation/scsi/scsi_mid_low_api.txt:
It gives credit and mentions the old Documentation/Configure.help
file that used to be part of Kernel 2.4.x
As we don't want to keep the script to keep pinpoint to those
every time, let's add a logic at the script to allow it to ignore
valid false-positives like the above.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Only seek for translation renames inside the translation
directory.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Call the script every time a make docs target is selected, on
a simplified check mode.
With this change, the script will set two vars:
$min_version - obtained from `needs_sphinx` var inside
conf.py (currently, '1.3')
$rec_version - obtained from sphinx/requirements.txt.
With those changes, a target like "make htmldocs" will do:
1) If no sphinx-build/sphinx-build3 is found, it will run
the script on normal mode as before, checking for all
system dependencies and providing install hints for the
needed programs and will abort the build;
2) If no sphinx-build/sphinx-build3 is found, but there is
a sphinx_${VER}/bin/activate file, and if
${VER} >= $min_version (string comparation), it will
run in full mode, and will recommend to activate the
virtualenv. If there are multiple virtualenvs, it
will string sort the versions, recommending the
highest version and will abort the build;
3) If Sphinx is detected but has a version lower than
$min_version, it will run in full mode - with will
recommend creating a virtual env using sphinx/requirements.txt,
and will abort the build.
4) If Sphinx is detected and version is lower than
$rec_version, it will run in full mode and will
recommend creating a virtual env using sphinx/requirements.txt.
In this case, it **won't** abort the build.
5) If Sphinx is detected and version is equal or righer than
$rec_version it will return just after detecting the
version ("quick mode"), not checking if are there any
missing dependencies.
Just like before, if one wants to install Sphinx from the
distro, it has to call the script manually and use `--no-virtualenv`
argument to get the hints for his OS:
You should run:
sudo dnf install -y python3-sphinx python3-sphinx_rtd_theme
While here, add a small help for the three optional arguments
for the script.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
RHEL8 was already launched. This test won't get it, and will
do the wrong thing. Ok, we could fix it, but now we check
Sphinx version to ensure that it matches the minimal (1.3),
so there's no need for an explicit check there.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
It is possible that multiple Sphinx virtualenvs are installed
on a given kernel tree. Change the logic to get the latest
version of those, as this is probably what the user wants.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
our extensions and, thus, the documentation build in general. Who knew
that those deprecation warnings it was outputting actually meant we should
change something? This set of fixes makes the build work again with
Sphinx 2.0 and eliminates the warnings for 1.8. As part of that, we also
need a few fixes to the docs for places where the new Sphinx is more
strict.
It is a bit late in the cycle for this kind of change, but it does fix
problems that people are experiencing now.
There has been some talk of raising the minimum version of Sphinx we
support. I don't want to do that abruptly, though, so these changes add
some glue to continue to support versions back to 1.3. We will be adding
some infrastructure soon to nudge users of old versions forward, with the
idea of maybe increasing our minimum version (and removing this glue)
sometime in the future.
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Merge tag 'docs-5.2-fixes2' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"The Sphinx 2.0 release contained a few incompatible API changes that
broke our extensions and, thus, the documentation build in general.
Who knew that those deprecation warnings it was outputting actually
meant we should change something? This set of fixes makes the build
work again with Sphinx 2.0 and eliminates the warnings for 1.8. As
part of that, we also need a few fixes to the docs for places where
the new Sphinx is more strict.
It is a bit late in the cycle for this kind of change, but it does fix
problems that people are experiencing now.
There has been some talk of raising the minimum version of Sphinx we
support. I don't want to do that abruptly, though, so these changes
add some glue to continue to support versions back to 1.3. We will be
adding some infrastructure soon to nudge users of old versions
forward, with the idea of maybe increasing our minimum version (and
removing this glue) sometime in the future"
* tag 'docs-5.2-fixes2' of git://git.lwn.net/linux:
drm/i915: Maintain consistent documentation subsection ordering
scripts/sphinx-pre-install: make it handle Sphinx versions
docs: Fix conf.py for Sphinx 2.0
docs: fix multiple doc build warnings in enumeration.rst
lib/list_sort: fix kerneldoc build error
docs: fix numaperf.rst and add it to the doc tree
doc: Cope with the deprecation of AutoReporter
doc: Cope with Sphinx logging deprecations
The "no structured comments found" warning is not particularly useful if
there are several invocations, one of which is looking for something
wrong. So if something specific has been requested, make it clear that
it's the one we weren't able to find.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
- Update checkpatch.pl to use DT vendor-prefixes.yaml
- Fix DT binding references to files converted to DT schema
- Clean-up Arm CPU binding examples to match schema
- Add Sifive block versioning scheme documentation
- Pass binding directory base to validation tools for reference lookups
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-----END PGP SIGNATURE-----
Merge tag 'devicetree-fixes-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
- Update checkpatch.pl to use DT vendor-prefixes.yaml
- Fix DT binding references to files converted to DT schema
- Clean-up Arm CPU binding examples to match schema
- Add Sifive block versioning scheme documentation
- Pass binding directory base to validation tools for reference lookups
* tag 'devicetree-fixes-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
checkpatch.pl: Update DT vendor prefix check
dt: bindings: mtd: replace references to nand.txt with nand-controller.yaml
dt-bindings: interrupt-controller: arm,gic: Fix schema errors in example
dt-bindings: arm: Clean up CPU binding examples
dt: fix refs that were renamed to json with the same file name
dt-bindings: Pass binding directory to validation tools
dt-bindings: sifive: describe sifive-blocks versioning
Here is another set of reviewed patches that adds SPDX tags to different
kernel files, based on a set of rules that are being used to parse the
comments to try to determine that the license of the file is
"GPL-2.0-or-later". Only the "obvious" versions of these matches are
included here, a number of "non-obvious" variants of text have been
found but those have been postponed for later review and analysis.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on the
patches are reviewers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pule more SPDX updates from Greg KH:
"Here is another set of reviewed patches that adds SPDX tags to
different kernel files, based on a set of rules that are being used to
parse the comments to try to determine that the license of the file is
"GPL-2.0-or-later".
Only the "obvious" versions of these matches are included here, a
number of "non-obvious" variants of text have been found but those
have been postponed for later review and analysis.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on
the patches are reviewers"
* tag 'spdx-5.2-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (85 commits)
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 125
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 123
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 122
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 121
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 120
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 119
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 116
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 113
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 112
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 111
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 110
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 106
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 105
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 103
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 101
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 98
...
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not write to the free software foundation inc
675 mass ave cambridge ma 02139 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 441 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is a part of the linux kernel and may be freely copied
under the terms of the gnu general public license gpl version 2 or
at your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.118952876@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public licence as published by
the free software foundation either version 2 of the licence or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 114 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520170857.552531963@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As we want to switch to a newer Sphinx version in the future,
add some version detected logic, checking if the current
version meets the requirement and suggesting upgrade it the
version is supported but too old.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
spdxcheck.py script up with the current state of affairs.
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Merge tag 'docs-5.2-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of fixes for a docs build problem, along with catching the
spdxcheck.py script up with the current state of affairs"
* tag 'docs-5.2-fixes' of git://git.lwn.net/linux:
Documentation: kdump: fix minor typo
scripts/spdxcheck.py: Add dual license subdirectory
scripts/spdxcheck.py: Fix path to deprecated licenses
counter: fix Documentation build error due to incorrect source file name
In commit 8122de5460 ("dt-bindings: Convert vendor prefixes to
json-schema"), vendor-prefixes.txt has been converted to a DT schema.
Update the checkpatch.pl DT check to extract vendor prefixes from the new
vendor-prefixes.yaml file.
Fixes: 8122de5460 ("dt-bindings: Convert vendor prefixes to json-schema")
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Rob Herring <robh@kernel.org>
In order to have $ref's to schema files within the kernel, we need to
pass the base path of bindings to the schema validation tools.
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: devicetree@vger.kernel.org
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Here are series of patches that add SPDX tags to different kernel files,
based on two different things:
- SPDX entries are added to a bunch of files that we missed a year ago
that do not have any license information at all.
These were either missed because the tool saw the MODULE_LICENSE()
tag, or some EXPORT_SYMBOL tags, and got confused and thought the
file had a real license, or the files have been added since the last
big sweep, or they were Makefile/Kconfig files, which we didn't
touch last time.
- Add GPL-2.0-only or GPL-2.0-or-later tags to files where our scan
tools can determine the license text in the file itself. Where this
happens, the license text is removed, in order to cut down on the
700+ different ways we have in the kernel today, in a quest to get
rid of all of these.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on the
patches are reviewers.
The reason for these "large" patches is if we were to continue to
progress at the current rate of change in the kernel, adding license
tags to individual files in different subsystems, we would be finished
in about 10 years at the earliest.
There will be more series of these types of patches coming over the next
few weeks as the tools and reviewers crunch through the more "odd"
variants of how to say "GPLv2" that developers have come up with over
the years, combined with other fun oddities (GPL + a BSD disclaimer?)
that are being unearthed, with the goal for the whole kernel to be
cleaned up.
These diffstats are not small, 3840 files are touched, over 10k lines
removed in just 24 patches.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull SPDX update from Greg KH:
"Here is a series of patches that add SPDX tags to different kernel
files, based on two different things:
- SPDX entries are added to a bunch of files that we missed a year
ago that do not have any license information at all.
These were either missed because the tool saw the MODULE_LICENSE()
tag, or some EXPORT_SYMBOL tags, and got confused and thought the
file had a real license, or the files have been added since the
last big sweep, or they were Makefile/Kconfig files, which we
didn't touch last time.
- Add GPL-2.0-only or GPL-2.0-or-later tags to files where our scan
tools can determine the license text in the file itself. Where this
happens, the license text is removed, in order to cut down on the
700+ different ways we have in the kernel today, in a quest to get
rid of all of these.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on
the patches are reviewers.
The reason for these "large" patches is if we were to continue to
progress at the current rate of change in the kernel, adding license
tags to individual files in different subsystems, we would be finished
in about 10 years at the earliest.
There will be more series of these types of patches coming over the
next few weeks as the tools and reviewers crunch through the more
"odd" variants of how to say "GPLv2" that developers have come up with
over the years, combined with other fun oddities (GPL + a BSD
disclaimer?) that are being unearthed, with the goal for the whole
kernel to be cleaned up.
These diffstats are not small, 3840 files are touched, over 10k lines
removed in just 24 patches"
* tag 'spdx-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (24 commits)
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 25
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 24
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 23
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 22
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 21
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 20
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 19
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 17
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 15
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 14
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 12
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 11
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 10
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 9
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 5
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 3
...
The licenses from the other directory were partially moved to the dual
directory in commit 8ea8814fcd ("LICENSES: Clearly mark dual license only
licenses"). checkpatch therefore rejected files like
drivers/staging/android/ashmem.h with
WARNING: 'SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */' is not supported in LICENSES/...
#1: FILE: drivers/staging/android/ashmem.h:1:
+/* SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */
Fixes: 8ea8814fcd ("LICENSES: Clearly mark dual license only licenses")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all files which:
- Have no license information of any form
- Have EXPORT_.*_SYMBOL_GPL inside which was used in the
initial scan/conversion to ignore the file
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When CONFIG_CFI_CLANG is enabled, LLVM renames all address taken
functions by appending a .cfi postfix to their names, and creates
function stubs with the original names. The compiler always injects
these stubs to the text section, even if the function itself is
placed into init or exit sections, which creates modpost warnings.
This commit adds a modpost exception for CFI stubs to prevent the
warnings.
Bug: 117237524
Bug: 133186739
Change-Id: Ieb8bf20d0c3ad7b7295c535f598370220598cdb0
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
With CONFIG_LTO_CLANG, clang generates LLVM IR instead of ELF object
files. As empty.o is used for probing target properties, disable LTO
for it to produce an object file instead.
Bug: 62093296
Bug: 67506682
Bug: 133186739
Change-Id: I0c7ac7ee0134465cac4a8c3a9c7e8b6347076a2b
(am from https://patchwork.kernel.org/patch/10060317/)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
With CONFIG_LTO_CLANG enabled, LLVM IR won't be compiled into object
files until modpost_link. This change postpones calls to recordmcount
until after this step.
In order to exclude ftrace_process_locs from inspection, we add a new
code section .text..ftrace, which we tell recordmcount to ignore, and
a __norecordmcount attribute for moving functions to this section.
Bug: 62093296
Bug: 67506682
Bug: 133186739
Change-Id: Iba2c053968206acf533fadab1eb34a743b5088ee
(am from https://patchwork.kernel.org/patch/10060327/)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This change adds the configuration option CONFIG_LTO_CLANG, and
build system support for clang's Link Time Optimization (LTO). In
preparation for LTO support for other compilers, potentially common
parts of the changes are gated behind CONFIG_LTO instead.
With -flto, instead of object files, clang produces LLVM bitcode,
which is compiled into a native object at link time, allowing the
final binary to be optimized globally. For more details, see:
https://llvm.org/docs/LinkTimeOptimization.html
While the kernel normally uses GNU ld for linking, LLVM supports LTO
only with lld or GNU gold linkers. This patch set assumes lld will
be used.
Bug: 62093296
Bug: 67506682
Bug: 133186739
Change-Id: Ibcd9fc7ec501b4f30b43b4877897615645f8655f
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
I just thought it was a good idea to scan builtin.modules in the name
uniqueness checking, but a couple of false positives were found.
Stephen reported a false positive for ppc64_defconfig:
warning: same basename if the following are built as modules:
arch/powerpc/platforms/powermac/nvram.ko
drivers/char/nvram.ko
The former is never built as a module as you see in
arch/powerpc/platforms/powermac/Makefile:
# CONFIG_NVRAM is an arch. independent tristate symbol, for pmac32 we really
# need this to be a bool. Cheat here and pretend CONFIG_NVRAM=m is really
# CONFIG_NVRAM=y
obj-$(CONFIG_NVRAM:m=y) += nvram.o
Another example of false positive is arm64 defconfig:
warning: same basename if the following are built as modules:
arch/arm64/lib/crc32.ko
lib/crc32.ko
It is true CONFIG_CRC32 is a tristate option but it is always 'y' since
it is select'ed by ARM64. Hence, neither of them is built as a module
for the arm64 build.
From the above, modules.builtin essentially contains false positives.
I do not think it is a big deal as far as kmod is concerned, but false
positive warnings in the kernel build make people upset. It is better
to not check it.
Even without builtin.modules checked, we have enough (and more solid)
test coverage with allmodconfig.
While I touched this part, I replaced the sed code with neater one
provided by Stephen.
Link: https://lkml.org/lkml/2019/5/19/120
Link: https://lkml.org/lkml/2019/5/19/123
Fixes: 3a48a91901 ("kbuild: check uniqueness of module names")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The gcc-common.h file did not take into account certain macros that
might have already been defined in the build environment. This updates
the header to avoid redefining the macros, as seen on a Darwin host
using gcc 4.9.2:
HOSTCXX -fPIC scripts/gcc-plugins/arm_ssp_per_task_plugin.o - due to: scripts/gcc-plugins/gcc-common.h
In file included from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:0:
scripts/gcc-plugins/gcc-common.h:153:0: warning: "__unused" redefined
^
In file included from /usr/include/stdio.h:64:0,
from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/system.h:40,
from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/gcc-plugin.h:28,
from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/plugin.h:23,
from scripts/gcc-plugins/gcc-common.h:9,
from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:
/usr/include/sys/cdefs.h:161:0: note: this is the location of the previous definition
^
Reported-and-tested-by: "H. Nikolaus Schaller" <hns@goldelico.com>
Fixes: 189af46571 ("ARM: smp: add support for per-task stack canaries")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
The directory name for other licenses was changed to "deprecated" in
commit 62be257e98 ("LICENSES: Rename other to deprecated"). But it was
not changed for spdxcheck.py. As result, checkpatch failed with
FAIL: "Blob or Tree named 'other' not found"
Traceback (most recent call last):
File "scripts/spdxcheck.py", line 240, in <module>
spdx = read_spdxdata(repo)
File "scripts/spdxcheck.py", line 41, in read_spdxdata
for el in lictree[d].traverse():
File "/usr/lib/python2.7/dist-packages/git/objects/tree.py", line 298, in __getitem__
return self.join(item)
File "/usr/lib/python2.7/dist-packages/git/objects/tree.py", line 244, in join
raise KeyError(msg % file)
KeyError: "Blob or Tree named 'other' not found"
Fixes: 62be257e98 ("LICENSES: Rename other to deprecated")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
If you want to see if your linker supports a certain flag, then ask the
linker directly with ld-option (not the compiler with cc-ldoption).
Checking for linker flag support is an antipattern that complicates the
usage of various linkers other than bfd via -fuse-ld={bfd|gold|lld}.
Cc: clang-built-linux@googlegroups.com
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
'ifeq ... else ifneq ... endif' notation is supported by GNU Make 3.81
or later, which is the requirement for building the kernel since
commit 37d69ee308 ("docs: bump minimal GNU Make version to 3.81").
Use it to improve the readability.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In the recent build test of linux-next, Stephen saw a build error
caused by a broken .tmp_versions/*.mod file:
https://lkml.org/lkml/2019/5/13/991
drivers/net/phy/asix.ko and drivers/net/usb/asix.ko have the same
basename, and there is a race in generating .tmp_versions/asix.mod
Kbuild has not checked this before, and it suddenly shows up with
obscure error messages when this kind of race occurs.
Non-unique module names cause various sort of problems, but it is
not trivial to catch them by eyes.
Hence, this script.
It checks not only real modules, but also built-in modules (i.e.
controlled by tristate CONFIG option, but currently compiled with =y).
Non-unique names for built-in modules also cause problems because
/sys/modules/ would fall over.
For the latest kernel, I tested "make allmodconfig all" (or more
quickly "make allyesconfig modules"), and it detected the following:
warning: same basename if the following are built as modules:
drivers/regulator/88pm800.ko
drivers/mfd/88pm800.ko
warning: same basename if the following are built as modules:
drivers/gpu/drm/bridge/adv7511/adv7511.ko
drivers/media/i2c/adv7511.ko
warning: same basename if the following are built as modules:
drivers/net/phy/asix.ko
drivers/net/usb/asix.ko
warning: same basename if the following are built as modules:
fs/coda/coda.ko
drivers/media/platform/coda/coda.ko
warning: same basename if the following are built as modules:
drivers/net/phy/realtek.ko
drivers/net/dsa/realtek.ko
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Currently menu blocks start with a pretty header but end with nothing in
the generated config. So next config options stick together with the
options from the menu block.
Let's terminate menu blocks in the generated config with a comment and
a newline if needed. Example:
...
CONFIG_BPF_STREAM_PARSER=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
CONFIG_NET_PKTGEN=y
CONFIG_NET_DROP_MONITOR=y
# end of Network testing
# end of Networking options
CONFIG_HAMRADIO=y
...
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The 'addtree' and 'flags' in scripts/Kbuild.include are so compilecated
and ugly.
As I mentioned in [1], Kbuild should stop automatic prefixing of header
search path options.
I fixed up (almost) all Makefiles in the kernel. Now 'addtree' and
'flags' have been removed.
Kbuild still caters to add $(srctree)/$(src) and $(objtree)/$(obj)
to the header search path for O= building, but never touches extra
compiler options from ccflags-y etc.
[1]: https://patchwork.kernel.org/patch/9632347/
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, the Kbuild core manipulates header search paths in a crazy
way [1].
To fix this mess, I want all Makefiles to add explicit $(srctree)/ to
the search paths in the srctree. Some Makefiles are already written in
that way, but not all. The goal of this work is to make the notation
consistent, and finally get rid of the gross hacks.
Having whitespaces after -I does not matter since commit 48f6e3cf5b
("kbuild: do not drop -I without parameter").
[1]: https://patchwork.kernel.org/patch/9632347/
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
If the compiler specified by $(CC) is not present, the Kconfig stage
sprinkles 'not found' messages, then succeeds.
$ make CROSS_COMPILE=foo defconfig
/bin/sh: 1: foogcc: not found
/bin/sh: 1: foogcc: not found
*** Default configuration is based on 'x86_64_defconfig'
./scripts/gcc-version.sh: 17: ./scripts/gcc-version.sh: foogcc: not found
./scripts/gcc-version.sh: 18: ./scripts/gcc-version.sh: foogcc: not found
./scripts/gcc-version.sh: 19: ./scripts/gcc-version.sh: foogcc: not found
./scripts/gcc-version.sh: 17: ./scripts/gcc-version.sh: foogcc: not found
./scripts/gcc-version.sh: 18: ./scripts/gcc-version.sh: foogcc: not found
./scripts/gcc-version.sh: 19: ./scripts/gcc-version.sh: foogcc: not found
./scripts/clang-version.sh: 11: ./scripts/clang-version.sh: foogcc: not found
./scripts/gcc-plugin.sh: 11: ./scripts/gcc-plugin.sh: foogcc: not found
init/Kconfig:16:warning: 'GCC_VERSION': number is invalid
#
# configuration written to .config
#
Terminate parsing files immediately if $(CC) or $(LD) is not found.
"make *config" will fail more nicely.
$ make CROSS_COMPILE=foo defconfig
*** Default configuration is based on 'x86_64_defconfig'
scripts/Kconfig.include:34: compiler 'foogcc' not found
make[1]: *** [scripts/kconfig/Makefile;82: defconfig] Error 1
make: *** [Makefile;557: defconfig] Error 2
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We do not support old Clang versions. Upgrade your clang version
if any of these flags is unsupported.
Let's add all flags inside ifdef CONFIG_CC_IS_CLANG unconditionally.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
These flags are documented in the GCC 4.6 manual, and recognized by
Clang as well. Let's rip off the cc-option / cc-disable-warning switches.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
- error out if a user specifies a directory instead of a file from
"Save" menu of GUI interfaces
- do not overwrite .config if there is no change in the configuration
- create parent directories as needed when a user specifies a new file
path from "Save" menu of menuconfig/nconfig
- fix potential buffer overflow
- some trivial cleanups
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Merge tag 'kconfig-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- error out if a user specifies a directory instead of a file from
"Save" menu of GUI interfaces
- do not overwrite .config if there is no change in the configuration
- create parent directories as needed when a user specifies a new file
path from "Save" menu of menuconfig/nconfig
- fix potential buffer overflow
- some trivial cleanups
* tag 'kconfig-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: make conf_get_autoconfig_name() static
kconfig: use snprintf for formatting pathnames
kconfig: remove useless NULL pointer check in conf_write_dep()
kconfig: make parent directories for the saved .config as needed
kconfig: do not write .config if the content is the same
kconfig: do not accept a directory for configuration output
kconfig: remove trailing whitespaces
kconfig: Make nconf-cfg.sh executable
The clk rate is always stored in clk_core but might be out of date and
require calls to update from hardware.
Deal with that case by printing a (c) suffix.
Link: http://lkml.kernel.org/r/1a474318982a5f0125f2360c4161029b17f56bd1.1556881728.git.leonard.crestez@nxp.com
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
An incorrect argument to list_for_each is an internal error in gdb
scripts so a TypeError should be raised. The gdb.GdbError exception
type is intended for user errors such as incorrect invocation.
Drop the type assertion in list_for_each_entry because list_for_each
isn't going to suddenly yield something else.
Applies to both list and hlist
Link: http://lkml.kernel.org/r/c1d3fd4db13d999a3ba57f5bbc1924862d824f61.1556881728.git.leonard.crestez@nxp.com
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Finding an individual clk_core requires walking the tree which can be
quite complicated so add a helper for easy access.
(gdb) print *(struct clk_scu*)$lx_clk_core_lookup("uart0_clk")->hw
Link: http://lkml.kernel.org/r/Message-ID:
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add an lx-clk-summary command which prints a subset of
/sys/kernel/debug/clk/clk_summary.
This can be used to examine hangs caused by clk not being enabled.
Link: http://lkml.kernel.org/r/Message-ID:
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
These scripts have some pep8 style warnings. Fix them up so that this
directory is all pep8 clean.
Link: http://lkml.kernel.org/r/20190329220844.38234-6-swboyd@chromium.org
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jackie Liu <liuyun01@kylinos.cn>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Implement a command to print the timer list, much like how
/proc/timer_list is implemented. This can be used to look at the
pending timers on a crashed system.
[swboyd@chromium.org: v2]
Link: http://lkml.kernel.org/r/20190329220844.38234-5-swboyd@chromium.org
Link: http://lkml.kernel.org/r/20190325184522.260535-5-swboyd@chromium.org
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jackie Liu <liuyun01@kylinos.cn>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Implement gdb functions for rb_first(), rb_last(), rb_next(), and
rb_prev(). These can be useful to iterate through the kernel's
red-black trees.
[swboyd@chromium.org: v2]
Link: http://lkml.kernel.org/r/20190329220844.38234-4-swboyd@chromium.org
Link: http://lkml.kernel.org/r/20190325184522.260535-4-swboyd@chromium.org
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jackie Liu <liuyun01@kylinos.cn>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lx-configdump <file> dumps the contents of the gzipped .config to a text
file when the config is included in the kernel with CONFIG_IKCONFIG. By
default, the file written is called config.txt, but it can be any user
supplied filename as well. If the kernel config is in a module
(configs.ko), then it can be loaded along with symbols for the module
loaded with 'lx-symbols' and then this command will still work.
Obviously if you have the whole vmlinux then this can also be achieved
with scripts/extract-ikconfig, but this gdb script can be useful to
confirm that the memory contents of the config in memory and the vmlinux
contents on disk match what is expected.
[swboyd@chromium.org: v2]
Link: http://lkml.kernel.org/r/20190329220844.38234-3-swboyd@chromium.org
Link: http://lkml.kernel.org/r/20190325184522.260535-3-swboyd@chromium.org
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jackie Liu <liuyun01@kylinos.cn>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "gdb script for kconfig and timer list".
This is a handful of changes to the kernel's gdb scripts to do some more
debugging with kgdb. The first patch allows the vmlinux to be reloaded
from where it was specified on the command line so that this set of
scripts can be used from anywhere. The second patch adds a script to
dump the config.gz to a file on the host debugging machine. The third
patch adds some rb tree utilities and the last patch uses those rb tree
walking utilities to dump out the contents of /proc/timer_list from a
system under debug.
This patch (of 5):
If I run 'gdb <path/to/vmlinux>' and there's the vmlinux-gdb.py file
there I can properly see symbols and use the lx commands provided by the
GDB scripts. But once I run 'lx-symbols' at the command prompt, gdb
reloads the vmlinux symbols assuming that this script was run from the
directory that has vmlinux at the root. That isn't always true, but we
could just look and see what symbols were already loaded and use that
instead. Let's do that so this can work by being invoked anywhere.
Link: http://lkml.kernel.org/r/20190325184522.260535-2-swboyd@chromium.org
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jackie Liu <liuyun01@kylinos.cn>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Valid pathnames will never exceed PATH_MAX, but these file names
are unsanitized and can cause buffer overflow if set incorrectly.
Use snprintf to avoid this. This was flagged during a Coverity scan
of the coreboot project, which also uses kconfig for its build system.
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
conf_write_dep() has just one caller:
conf_write_dep("include/config/auto.conf.cmd");
"name" always points to a valid string.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The script broke on parsing function prototype for bpf_strtoul(). This
is because the last argument for the function is a pointer to an
"unsigned long". The current version of the script only accepts "const"
and "struct", but not "unsigned", at the beginning of argument types
made of several words.
One solution could be to add "unsigned" to the list, but the issue could
come up again in the future (what about "long int"?). It turns out we do
not need to have such restrictions on the words: so let's simply accept
any series of words instead.
Reported-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Use gen_rtx_set instead of gen_rtx_SET. The former is a wrapper macro
that handles the difference between GCC versions implementing
the latter.
This fixes the following error on my system with g++ 5.4.0 as the host
compiler
HOSTCXX -fPIC scripts/gcc-plugins/arm_ssp_per_task_plugin.o
scripts/gcc-plugins/arm_ssp_per_task_plugin.c:42:14: error: macro "gen_rtx_SET" requires 3 arguments, but only 2 given
mask)),
^
scripts/gcc-plugins/arm_ssp_per_task_plugin.c: In function ‘unsigned int arm_pertask_ssp_rtl_execute()’:
scripts/gcc-plugins/arm_ssp_per_task_plugin.c:39:20: error: ‘gen_rtx_SET’ was not declared in this scope
emit_insn_before(gen_rtx_SET
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Fixes: 189af46571 ("ARM: smp: add support for per-task stack canaries")
Cc: stable@vger.kernel.org
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
With menuconfig / nconfig, users can input any file path from the
"Save" menu, but it fails if the parent directory does not exist.
Why not create the parent directory automatically. I think this is
a user-friendly behavior.
I changed the error messages in menuconfig / nconfig.
"Nonexistent directory" is no longer the most likely reason of the
failure. Perhaps, the user specified the existing directory, or
attempted to write to the location without write permission.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Kconfig updates the .config when it exits even if its content is
exactly the same as before. Since its timestamp becomes newer than
that of other build artifacts, additional processing is invoked,
which is annoying.
- syncconfig is invoked to update include/config/auto.conf, etc.
- kernel/configs.o is recompiled if CONFIG_IKCONFIG is enabled,
then vmlinux is relinked as well.
If the .config is not changed at all, we do not have to even
touch it. Just bail out showing "No change to .config".
$ make allmodconfig
scripts/kconfig/conf --allmodconfig Kconfig
#
# configuration written to .config
#
$ make allmodconfig
scripts/kconfig/conf --allmodconfig Kconfig
#
# No change to .config
#
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently, conf_write() can be called with a directory name instead
of a file name. As far as I see, this can happen for menuconfig,
nconfig, gconfig.
If it is given with a directory path, conf_write() kindly appends
getenv("KCONFIG_CONFIG"), but this ends up with hacky dir/basename
handling, and screwed up in corner-cases like "what if KCONFIG_CONFIG
is an absolute path?" as discussed before:
https://patchwork.kernel.org/patch/9910037/
Since conf_write() is already messed up, I'd say "do not do it".
Please pass a file path all the time. If a directory path is specified
for the configuration output, conf_write() will simply error out.
Now that the tmp file is created in the same directory as the .config,
the previously reported "what if KCONFIG_CONFIG points to a different
file system?" has been solved.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Nicolas Porcel <nicolasporcel06@gmail.com>
There are still some trailing whitespaces under scripts/kconfig/tests/,
but they must be kept. Otherwise, "make testconfig" would break.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
- Lots of work on the Chinese and Italian translations
- Some license-rules clarifications from Christoph
- Various build-script fixes
- A new document on memory models
- RST conversion of the live-patching docs
- The usual collection of typo fixes and corrections.
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Merge tag 'docs-5.2' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"A reasonably busy cycle for docs, including:
- Lots of work on the Chinese and Italian translations
- Some license-rules clarifications from Christoph
- Various build-script fixes
- A new document on memory models
- RST conversion of the live-patching docs
- The usual collection of typo fixes and corrections"
* tag 'docs-5.2' of git://git.lwn.net/linux: (140 commits)
docs/livepatch: Unify style of livepatch documentation in the ReST format
docs: livepatch: convert docs to ReST and rename to *.rst
scripts/documentation-file-ref-check: detect broken :doc:`foo`
scripts/documentation-file-ref-check: don't parse Next/ dir
LICENSES: Rename other to deprecated
LICENSES: Clearly mark dual license only licenses
docs: Don't reference the ZLib license in license-rules.rst
docs/vm: Minor editorial changes in the THP and hugetlbfs
docs/vm: add documentation of memory models
doc:it_IT: translation alignment
doc: fix typo in PGP guide
dontdiff: update with Kconfig build artifacts
docs/zh_CN: fix typos in 1.Intro.rst file
docs/zh_CN: redirect CoC docs to Chinese version
doc: mm: migration doesn't use FOLL_SPLIT anymore
docs: doc-guide: remove the extension from .rst files
doc: kselftest: Fix KBUILD_OUTPUT usage instructions
docs: trace: fix some Sphinx warnings
docs: speculation.txt: mark example blocks as such
docs: ntb.txt: add blank lines to clean up some Sphinx warnings
...
- allow users to invoke 'make' out of the source tree
- refactor scripts/mkmakefile
- deprecate KBUILD_SRC, which was used to track the source tree
location for O= build.
- fix recordmcount.pl in case objdump output is localized
- turn unresolved symbols in external modules to errors from warnings
by default; pass KBUILD_MODPOST_WARN=1 to get them back to warnings
- generate modules.builtin.modinfo to collect .modinfo data from
built-in modules
- misc Makefile cleanups
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Merge tag 'kbuild-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- allow users to invoke 'make' out of the source tree
- refactor scripts/mkmakefile
- deprecate KBUILD_SRC, which was used to track the source tree
location for O= build.
- fix recordmcount.pl in case objdump output is localized
- turn unresolved symbols in external modules to errors from warnings
by default; pass KBUILD_MODPOST_WARN=1 to get them back to warnings
- generate modules.builtin.modinfo to collect .modinfo data from
built-in modules
- misc Makefile cleanups
* tag 'kbuild-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (21 commits)
.gitignore: add more all*.config patterns
moduleparam: Save information about built-in modules in separate file
Remove MODULE_ALIAS() calls that take undefined macro
.gitignore: add leading and trailing slashes to generated directories
scripts/tags.sh: fix direct execution of scripts/tags.sh
scripts: override locale from environment when running recordmcount.pl
samples: kobject: allow CONFIG_SAMPLE_KOBJECT to become y
samples: seccomp: turn CONFIG_SAMPLE_SECCOMP into a bool option
kbuild: move Documentation to vmlinux-alldirs
kbuild: move samples/ to KBUILD_VMLINUX_OBJS
modpost: make KBUILD_MODPOST_WARN also configurable for external modules
kbuild: check arch/$(SRCARCH)/include/generated before out-of-tree build
kbuild: remove unneeded dependency for include/config/kernel.release
memory: squash drivers/memory/Makefile.asm-offsets
kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build
kbuild: mkmakefile: generate a simple wrapper of top Makefile
kbuild: mkmakefile: do not check the generated Makefile marker
kbuild: allow Kbuild to start from any directory
kbuild: pass $(MAKECMDGOALS) to sub-make as is
kbuild: fix warning "overriding recipe for target 'Makefile'"
...
Here are the patches which made on 5.1-rc6 and all are tested in our
buildroot gitlab CI:
https://gitlab.com/c-sky/buildroot/pipelines/57892579
- Fixup vdsp&fpu issues in kernel
- Add dynamic function tracer
- Use in_syscall & forget_syscall instead of r11_sig
- Reconstruct signal processing
- Support dynamic start physical address
- Fixup wrong update_mmu_cache implementation
- Support vmlinux bootup with MMU off
- Use va_pa_offset instead of phys_offset
- Fixup syscall_trace return processing flow
- Add perf callchain support
- Add perf_arch_fetch_caller_regs support
- Add page fault perf event support
- Add support for perf registers sampling
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Merge tag 'csky-for-linus-5.2-rc1' of git://github.com/c-sky/csky-linux
Pull arch/csky updates from Guo Ren:
- Fixup vdsp&fpu issues in kernel
- Add dynamic function tracer
- Use in_syscall & forget_syscall instead of r11_sig
- Reconstruct signal processing
- Support dynamic start physical address
- Fixup wrong update_mmu_cache implementation
- Support vmlinux bootup with MMU off
- Use va_pa_offset instead of phys_offset
- Fixup syscall_trace return processing flow
- Add perf callchain support
- Add perf_arch_fetch_caller_regs support
- Add page fault perf event support
- Add support for perf registers sampling
* tag 'csky-for-linus-5.2-rc1' of git://github.com/c-sky/csky-linux:
csky/syscall_trace: Fixup return processing flow
csky: Fixup compile warning
csky: Add support for perf registers sampling
csky: add page fault perf event support
csky: Use va_pa_offset instead of phys_offset
csky: Support vmlinux bootup with MMU off
csky: Add perf_arch_fetch_caller_regs support
csky: Fixup wrong update_mmu_cache implementation
csky: Support dynamic start physical address
csky: Reconstruct signal processing
csky: Use in_syscall & forget_syscall instead of r11_sig
csky: Add non-uapi asm/ptrace.h namespace
csky: mm/fault.c: Remove duplicate header
csky: remove redundant generic-y
csky: Update syscall_trace_enter/exit implementation
csky: Add perf callchain support
csky/ftrace: Add dynamic function tracer (include graph tracer)
csky: Fixup vdsp&fpu issues in kernel
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Merge 4.19.41 into android-4.19
Changes in 4.19.41
iwlwifi: fix driver operation for 5350
mwifiex: Make resume actually do something useful again on SDIO cards
mac80211: don't attempt to rename ERR_PTR() debugfs dirs
i2c: synquacer: fix enumeration of slave devices
i2c: imx: correct the method of getting private data in notifier_call
i2c: Remove unnecessary call to irq_find_mapping
i2c: Clear client->irq in i2c_device_remove
i2c: Allow recovery of the initial IRQ by an I2C client device.
i2c: Prevent runtime suspend of adapter when Host Notify is required
ALSA: hda/realtek - Add new Dell platform for headset mode
ALSA: hda/realtek - Fixed Dell AIO speaker noise
ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR
USB: yurex: Fix protection fault after device removal
USB: w1 ds2490: Fix bug caused by improper use of altsetting array
USB: dummy-hcd: Fix failure to give back unlinked URBs
usb: usbip: fix isoc packet num validation in get_pipe
USB: core: Fix unterminated string returned by usb_string()
USB: core: Fix bug caused by duplicate interface PM usage counter
nvme-loop: init nvmet_ctrl fatal_err_work when allocate
efi: Fix debugobjects warning on 'efi_rts_work'
arm64: dts: rockchip: fix rk3328-roc-cc gmac2io tx/rx_delay
HID: logitech: check the return value of create_singlethread_workqueue
HID: debug: fix race condition with between rdesc_show() and device removal
rtc: cros-ec: Fail suspend/resume if wake IRQ can't be configured
rtc: sh: Fix invalid alarm warning for non-enabled alarm
batman-adv: Reduce claim hash refcnt only for removed entry
batman-adv: Reduce tt_local hash refcnt only for removed entry
batman-adv: Reduce tt_global hash refcnt only for removed entry
batman-adv: fix warning in function batadv_v_elp_get_throughput
ARM: dts: rockchip: Fix gpu opp node names for rk3288
reset: meson-audio-arb: Fix missing .owner setting of reset_controller_dev
igb: Fix WARN_ONCE on runtime suspend
riscv: fix accessing 8-byte variable from RV32
HID: quirks: Fix keyboard + touchpad on Lenovo Miix 630
net: hns3: fix compile error
net/mlx5: E-Switch, Fix esw manager vport indication for more vport commands
bonding: show full hw address in sysfs for slave entries
net: stmmac: use correct DMA buffer size in the RX descriptor
net: stmmac: ratelimit RX error logs
net: stmmac: don't stop NAPI processing when dropping a packet
net: stmmac: don't overwrite discard_frame status
net: stmmac: fix dropping of multi-descriptor RX frames
net: stmmac: don't log oversized frames
jffs2: fix use-after-free on symlink traversal
debugfs: fix use-after-free on symlink traversal
mfd: twl-core: Disable IRQ while suspended
block: use blk_free_flush_queue() to free hctx->fq in blk_mq_init_hctx
rtc: da9063: set uie_unsupported when relevant
HID: input: add mapping for Assistant key
vfio/pci: use correct format characters
scsi: core: add new RDAC LENOVO/DE_Series device
scsi: storvsc: Fix calculation of sub-channel count
arm/mach-at91/pm : fix possible object reference leak
arm64: fix wrong check of on_sdei_stack in nmi context
net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw()
net: hns: Use NAPI_POLL_WEIGHT for hns driver
net: hns: Fix probabilistic memory overwrite when HNS driver initialized
net: hns: fix ICMP6 neighbor solicitation messages discard problem
net: hns: Fix WARNING when remove HNS driver with SMMU enabled
libcxgb: fix incorrect ppmax calculation
KVM: SVM: prevent DBG_DECRYPT and DBG_ENCRYPT overflow
kmemleak: powerpc: skip scanning holes in the .bss section
hugetlbfs: fix memory leak for resv_map
sh: fix multiple function definition build errors
xsysace: Fix error handling in ace_setup
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
ARM: orion: don't use using 64-bit DMA masks
ARM: iop: don't use using 64-bit DMA masks
block: pass no-op callback to INIT_WORK().
perf/x86/amd: Update generic hardware cache events for Family 17h
Bluetooth: btusb: request wake pin with NOAUTOEN
Bluetooth: mediatek: fix up an error path to restore bdev->tx_state
clk: qcom: Add missing freq for usb30_master_clk on 8998
staging: iio: adt7316: allow adt751x to use internal vref for all dacs
staging: iio: adt7316: fix the dac read calculation
staging: iio: adt7316: fix the dac write calculation
scsi: RDMA/srpt: Fix a credit leak for aborted commands
ASoC: Intel: bytcr_rt5651: Revert "Fix DMIC map headsetmic mapping"
ASoC: wm_adsp: Correct handling of compressed streams that restart
ASoC: stm32: fix sai driver name initialisation
platform/x86: intel_pmc_core: Fix PCH IP name
platform/x86: intel_pmc_core: Handle CFL regmap properly
IB/core: Unregister notifier before freeing MAD security
IB/core: Fix potential memory leak while creating MAD agents
IB/core: Destroy QP if XRC QP fails
Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ
Input: stmfts - acknowledge that setting brightness is a blocking call
gpio: mxc: add check to return defer probe if clock tree NOT ready
selinux: avoid silent denials in permissive mode under RCU walk
selinux: never allow relabeling on context mounts
mac80211: Honor SW_CRYPTO_CONTROL for unicast keys in AP VLAN mode
powerpc/mm/hash: Handle mmap_min_addr correctly in get_unmapped_area topdown search
x86/mce: Improve error message when kernel cannot recover, p2
clk: x86: Add system specific quirk to mark clocks as critical
x86/mm/KASLR: Fix the size of the direct mapping section
x86/mm: Fix a crash with kmemleak_scan()
x86/mm/tlb: Revert "x86/mm: Align TLB invalidation info"
i2c: i2c-stm32f7: Fix SDADEL minimum formula
media: v4l2: i2c: ov7670: Fix PLL bypass register values
ASoC: wm_adsp: Check for buffer in trigger stop
mm/kmemleak.c: fix unused-function warning
Linux 4.19.41
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 10dce8af34 ]
Commit 9c225f2655 ("vfs: atomic f_pos accesses as per POSIX") added
locking for file.f_pos access and in particular made concurrent read and
write not possible - now both those functions take f_pos lock for the
whole run, and so if e.g. a read is blocked waiting for data, write will
deadlock waiting for that read to complete.
This caused regression for stream-like files where previously read and
write could run simultaneously, but after that patch could not do so
anymore. See e.g. commit 581d21a2d0 ("xenbus: fix deadlock on writes
to /proc/xen/xenbus") which fixes such regression for particular case of
/proc/xen/xenbus.
The patch that added f_pos lock in 2014 did so to guarantee POSIX thread
safety for read/write/lseek and added the locking to file descriptors of
all regular files. In 2014 that thread-safety problem was not new as it
was already discussed earlier in 2006.
However even though 2006'th version of Linus's patch was adding f_pos
locking "only for files that are marked seekable with FMODE_LSEEK (thus
avoiding the stream-like objects like pipes and sockets)", the 2014
version - the one that actually made it into the tree as 9c225f2655 -
is doing so irregardless of whether a file is seekable or not.
See
https://lore.kernel.org/lkml/53022DB1.4070805@gmail.com/https://lwn.net/Articles/180387https://lwn.net/Articles/180396
for historic context.
The reason that it did so is, probably, that there are many files that
are marked non-seekable, but e.g. their read implementation actually
depends on knowing current position to correctly handle the read. Some
examples:
kernel/power/user.c snapshot_read
fs/debugfs/file.c u32_array_read
fs/fuse/control.c fuse_conn_waiting_read + ...
drivers/hwmon/asus_atk0110.c atk_debugfs_ggrp_read
arch/s390/hypfs/inode.c hypfs_read_iter
...
Despite that, many nonseekable_open users implement read and write with
pure stream semantics - they don't depend on passed ppos at all. And for
those cases where read could wait for something inside, it creates a
situation similar to xenbus - the write could be never made to go until
read is done, and read is waiting for some, potentially external, event,
for potentially unbounded time -> deadlock.
Besides xenbus, there are 14 such places in the kernel that I've found
with semantic patch (see below):
drivers/xen/evtchn.c:667:8-24: ERROR: evtchn_fops: .read() can deadlock .write()
drivers/isdn/capi/capi.c:963:8-24: ERROR: capi_fops: .read() can deadlock .write()
drivers/input/evdev.c:527:1-17: ERROR: evdev_fops: .read() can deadlock .write()
drivers/char/pcmcia/cm4000_cs.c:1685:7-23: ERROR: cm4000_fops: .read() can deadlock .write()
net/rfkill/core.c:1146:8-24: ERROR: rfkill_fops: .read() can deadlock .write()
drivers/s390/char/fs3270.c:488:1-17: ERROR: fs3270_fops: .read() can deadlock .write()
drivers/usb/misc/ldusb.c:310:1-17: ERROR: ld_usb_fops: .read() can deadlock .write()
drivers/hid/uhid.c:635:1-17: ERROR: uhid_fops: .read() can deadlock .write()
net/batman-adv/icmp_socket.c:80:1-17: ERROR: batadv_fops: .read() can deadlock .write()
drivers/media/rc/lirc_dev.c:198:1-17: ERROR: lirc_fops: .read() can deadlock .write()
drivers/leds/uleds.c:77:1-17: ERROR: uleds_fops: .read() can deadlock .write()
drivers/input/misc/uinput.c:400:1-17: ERROR: uinput_fops: .read() can deadlock .write()
drivers/infiniband/core/user_mad.c:985:7-23: ERROR: umad_fops: .read() can deadlock .write()
drivers/gnss/core.c:45:1-17: ERROR: gnss_fops: .read() can deadlock .write()
In addition to the cases above another regression caused by f_pos
locking is that now FUSE filesystems that implement open with
FOPEN_NONSEEKABLE flag, can no longer implement bidirectional
stream-like files - for the same reason as above e.g. read can deadlock
write locking on file.f_pos in the kernel.
FUSE's FOPEN_NONSEEKABLE was added in 2008 in a7c1b990f7 ("fuse:
implement nonseekable open") to support OSSPD. OSSPD implements /dev/dsp
in userspace with FOPEN_NONSEEKABLE flag, with corresponding read and
write routines not depending on current position at all, and with both
read and write being potentially blocking operations:
See
https://github.com/libfuse/osspdhttps://lwn.net/Articles/308445https://github.com/libfuse/osspd/blob/14a9cff0/osspd.c#L1406https://github.com/libfuse/osspd/blob/14a9cff0/osspd.c#L1438-L1477https://github.com/libfuse/osspd/blob/14a9cff0/osspd.c#L1479-L1510
Corresponding libfuse example/test also describes FOPEN_NONSEEKABLE as
"somewhat pipe-like files ..." with read handler not using offset.
However that test implements only read without write and cannot exercise
the deadlock scenario:
https://github.com/libfuse/libfuse/blob/fuse-3.4.2-3-ga1bff7d/example/poll.c#L124-L131https://github.com/libfuse/libfuse/blob/fuse-3.4.2-3-ga1bff7d/example/poll.c#L146-L163https://github.com/libfuse/libfuse/blob/fuse-3.4.2-3-ga1bff7d/example/poll.c#L209-L216
I've actually hit the read vs write deadlock for real while implementing
my FUSE filesystem where there is /head/watch file, for which open
creates separate bidirectional socket-like stream in between filesystem
and its user with both read and write being later performed
simultaneously. And there it is semantically not easy to split the
stream into two separate read-only and write-only channels:
https://lab.nexedi.com/kirr/wendelin.core/blob/f13aa600/wcfs/wcfs.go#L88-169
Let's fix this regression. The plan is:
1. We can't change nonseekable_open to include &~FMODE_ATOMIC_POS -
doing so would break many in-kernel nonseekable_open users which
actually use ppos in read/write handlers.
2. Add stream_open() to kernel to open stream-like non-seekable file
descriptors. Read and write on such file descriptors would never use
nor change ppos. And with that property on stream-like files read and
write will be running without taking f_pos lock - i.e. read and write
could be running simultaneously.
3. With semantic patch search and convert to stream_open all in-kernel
nonseekable_open users for which read and write actually do not
depend on ppos and where there is no other methods in file_operations
which assume @offset access.
4. Add FOPEN_STREAM to fs/fuse/ and open in-kernel file-descriptors via
steam_open if that bit is present in filesystem open reply.
It was tempting to change fs/fuse/ open handler to use stream_open
instead of nonseekable_open on just FOPEN_NONSEEKABLE flags, but
grepping through Debian codesearch shows users of FOPEN_NONSEEKABLE,
and in particular GVFS which actually uses offset in its read and
write handlers
https://codesearch.debian.net/search?q=-%3Enonseekable+%3Dhttps://gitlab.gnome.org/GNOME/gvfs/blob/1.40.0-6-gcbc54396/client/gvfsfusedaemon.c#L1080https://gitlab.gnome.org/GNOME/gvfs/blob/1.40.0-6-gcbc54396/client/gvfsfusedaemon.c#L1247-1346https://gitlab.gnome.org/GNOME/gvfs/blob/1.40.0-6-gcbc54396/client/gvfsfusedaemon.c#L1399-1481
so if we would do such a change it will break a real user.
5. Add stream_open and FOPEN_STREAM handling to stable kernels starting
from v3.14+ (the kernel where 9c225f2655 first appeared).
This will allow to patch OSSPD and other FUSE filesystems that
provide stream-like files to return FOPEN_STREAM | FOPEN_NONSEEKABLE
in their open handler and this way avoid the deadlock on all kernel
versions. This should work because fs/fuse/ ignores unknown open
flags returned from a filesystem and so passing FOPEN_STREAM to a
kernel that is not aware of this flag cannot hurt. In turn the kernel
that is not aware of FOPEN_STREAM will be < v3.14 where just
FOPEN_NONSEEKABLE is sufficient to implement streams without read vs
write deadlock.
This patch adds stream_open, converts /proc/xen/xenbus to it and adds
semantic patch to automatically locate in-kernel places that are either
required to be converted due to read vs write deadlock, or that are just
safe to be converted because read and write do not use ppos and there
are no other funky methods in file_operations.
Regarding semantic patch I've verified each generated change manually -
that it is correct to convert - and each other nonseekable_open instance
left - that it is either not correct to convert there, or that it is not
converted due to current stream_open.cocci limitations.
The script also does not convert files that should be valid to convert,
but that currently have .llseek = noop_llseek or generic_file_llseek for
unknown reason despite file being opened with nonseekable_open (e.g.
drivers/input/mousedev.c)
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yongzhi Pan <panyongzhi@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Tejun Heo <tj@kernel.org>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Nikolaus Rath <Nikolaus@rath.org>
Cc: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Kirill Smelkov <kirr@nexedi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Pull networking updates from David Miller:
"Highlights:
1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.
2) Add fib_sync_mem to control the amount of dirty memory we allow to
queue up between synchronize RCU calls, from David Ahern.
3) Make flow classifier more lockless, from Vlad Buslov.
4) Add PHY downshift support to aquantia driver, from Heiner
Kallweit.
5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
contention on SLAB spinlocks in heavy RPC workloads.
6) Partial GSO offload support in XFRM, from Boris Pismenny.
7) Add fast link down support to ethtool, from Heiner Kallweit.
8) Use siphash for IP ID generator, from Eric Dumazet.
9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
entries, from David Ahern.
10) Move skb->xmit_more into a per-cpu variable, from Florian
Westphal.
11) Improve eBPF verifier speed and increase maximum program size,
from Alexei Starovoitov.
12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
spinlocks. From Neil Brown.
13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.
14) Improve link partner cap detection in generic PHY code, from
Heiner Kallweit.
15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
Maguire.
16) Remove SKB list implementation assumptions in SCTP, your's truly.
17) Various cleanups, optimizations, and simplifications in r8169
driver. From Heiner Kallweit.
18) Add memory accounting on TX and RX path of SCTP, from Xin Long.
19) Switch PHY drivers over to use dynamic featue detection, from
Heiner Kallweit.
20) Support flow steering without masking in dpaa2-eth, from Ioana
Ciocoi.
21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
Pirko.
22) Increase the strict parsing of current and future netlink
attributes, also export such policies to userspace. From Johannes
Berg.
23) Allow DSA tag drivers to be modular, from Andrew Lunn.
24) Remove legacy DSA probing support, also from Andrew Lunn.
25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
Haabendal.
26) Add a generic tracepoint for TX queue timeouts to ease debugging,
from Cong Wang.
27) More indirect call optimizations, from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
cxgb4: Fix error path in cxgb4_init_module
net: phy: improve pause mode reporting in phy_print_status
dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
net: macb: Change interrupt and napi enable order in open
net: ll_temac: Improve error message on error IRQ
net/sched: remove block pointer from common offload structure
net: ethernet: support of_get_mac_address new ERR_PTR error
net: usb: smsc: fix warning reported by kbuild test robot
staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
net: dsa: support of_get_mac_address new ERR_PTR error
net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
vrf: sit mtu should not be updated when vrf netdev is the link
net: dsa: Fix error cleanup path in dsa_init_module
l2tp: Fix possible NULL pointer dereference
taprio: add null check on sched_nest to avoid potential null pointer dereference
net: mvpp2: cls: fix less than zero check on a u32 variable
net_sched: sch_fq: handle non connected flows
net_sched: sch_fq: do not assume EDT packets are ordered
net: hns3: use devm_kcalloc when allocating desc_cb
net: hns3: some cleanup for struct hns3_enet_ring
...
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Merge tag 'selinux-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
"We've got a few SELinux patches for the v5.2 merge window, the
highlights are below:
- Add LSM hooks, and the SELinux implementation, for proper labeling
of kernfs. While we are only including the SELinux implementation
here, the rest of the LSM folks have given the hooks a thumbs-up.
- Update the SELinux mdp (Make Dummy Policy) script to actually work
on a modern system.
- Disallow userspace to change the LSM credentials via
/proc/self/attr when the task's credentials are already overridden.
The change was made in procfs because all the LSM folks agreed this
was the Right Thing To Do and duplicating it across each LSM was
going to be annoying"
* tag 'selinux-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
proc: prevent changes to overridden credentials
selinux: Check address length before reading address family
kernfs: fix xattr name handling in LSM helpers
MAINTAINERS: update SELinux file patterns
selinux: avoid uninitialized variable warning
selinux: remove useless assignments
LSM: lsm_hooks.h - fix missing colon in docstring
selinux: Make selinux_kernfs_init_security static
kernfs: initialize security of newly created nodes
selinux: implement the kernfs_init_security hook
LSM: add new hook for kernfs node initialization
kernfs: use simple_xattrs for security attributes
selinux: try security xattr after genfs for kernfs filesystems
kernfs: do not alloc iattrs in kernfs_xattr_get
kernfs: clean up struct kernfs_iattrs
scripts/selinux: fix build
selinux: use kernel linux/socket.h for genheaders and mdp
scripts/selinux: modernize mdp
- Consolidate memory initialization Kconfigs (Kees)
- Implement support for Clang's stack variable auto-init (Alexander)
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Merge tag 'meminit-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull compiler-based variable initialization updates from Kees Cook:
"This is effectively part of my gcc-plugins tree, but as this adds some
Clang support, it felt weird to still call it "gcc-plugins". :)
This consolidates Kconfig for the existing stack variable
initialization (via structleak and stackleak gcc plugins) and adds
Alexander Potapenko's support for Clang's new similar functionality.
Summary:
- Consolidate memory initialization Kconfigs (Kees)
- Implement support for Clang's stack variable auto-init (Alexander)"
* tag 'meminit-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
security: Implement Clang's stack initialization
security: Move stackleak config to Kconfig.hardening
security: Create "kernel hardening" config area
Problem:
When a kernel module is compiled as a separate module, some important
information about the kernel module is available via .modinfo section of
the module. In contrast, when the kernel module is compiled into the
kernel, that information is not available.
Information about built-in modules is necessary in the following cases:
1. When it is necessary to find out what additional parameters can be
passed to the kernel at boot time.
2. When you need to know which module names and their aliases are in
the kernel. This is very useful for creating an initrd image.
Proposal:
The proposed patch does not remove .modinfo section with module
information from the vmlinux at the build time and saves it into a
separate file after kernel linking. So, the kernel does not increase in
size and no additional information remains in it. Information is stored
in the same format as in the separate modules (null-terminated string
array). Because the .modinfo section is already exported with a separate
modules, we are not creating a new API.
It can be easily read in the userspace:
$ tr '\0' '\n' < modules.builtin.modinfo
ext4.softdep=pre: crc32c
ext4.license=GPL
ext4.description=Fourth Extended Filesystem
ext4.author=Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others
ext4.alias=fs-ext4
ext4.alias=ext3
ext4.alias=fs-ext3
ext4.alias=ext2
ext4.alias=fs-ext2
md_mod.alias=block-major-9-*
md_mod.alias=md
md_mod.description=MD RAID framework
md_mod.license=GPL
md_mod.parmtype=create_on_open:bool
md_mod.parmtype=start_dirty_degraded:int
...
Co-Developed-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>
Acked-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Pull objtool updates from Ingo Molnar:
"This is a series from Peter Zijlstra that adds x86 build-time uaccess
validation of SMAP to objtool, which will detect and warn about the
following uaccess API usage bugs and weirdnesses:
- call to %s() with UACCESS enabled
- return with UACCESS enabled
- return with UACCESS disabled from a UACCESS-safe function
- recursive UACCESS enable
- redundant UACCESS disable
- UACCESS-safe disables UACCESS
As it turns out not leaking uaccess permissions outside the intended
uaccess functionality is hard when the interfaces are complex and when
such bugs are mostly dormant.
As a bonus we now also check the DF flag. We had at least one
high-profile bug in that area in the early days of Linux, and the
checking is fairly simple. The checks performed and warnings emitted
are:
- call to %s() with DF set
- return with DF set
- return with modified stack frame
- recursive STD
- redundant CLD
It's all x86-only for now, but later on this can also be used for PAN
on ARM and objtool is fairly cross-platform in principle.
While all warnings emitted by this new checking facility that got
reported to us were fixed, there might be GCC version dependent
warnings that were not reported yet - which we'll address, should they
trigger.
The warnings are non-fatal build warnings"
* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions
x86/uaccess: Dont leak the AC flag into __put_user() argument evaluation
sched/x86_64: Don't save flags on context switch
objtool: Add Direction Flag validation
objtool: Add UACCESS validation
objtool: Fix sibling call detection
objtool: Rewrite alt->skip_orig
objtool: Add --backtrace support
objtool: Rewrite add_ignores()
objtool: Handle function aliases
objtool: Set insn->func for alternatives
x86/uaccess, kcov: Disable stack protector
x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP
x86/uaccess, ubsan: Fix UBSAN vs. SMAP
x86/uaccess, kasan: Fix KASAN vs SMAP
x86/smap: Ditch __stringify()
x86/uaccess: Introduce user_access_{save,restore}()
x86/uaccess, signal: Fix AC=1 bloat
x86/uaccess: Always inline user_access_begin()
x86/uaccess, xen: Suppress SMAP warnings
...
The kernel the kernel is built with -Wvla for some time, so is not
supposed to have any variable length arrays. Remove vla bounds checking
from ubsan since it's useless now.
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When BTF generation is enabled through CONFIG_DEBUG_INFO_BTF,
scripts/link-vmlinux.sh detects if pahole version is too old and
gracefully continues build process, skipping BTF generation build step.
But if pahole is not available, build will still fail. This patch adds
check for whether pahole exists at all and bails out gracefully, if not.
Cc: Alexei Starovoitov <ast@fb.com>
Reported-by: Yonghong Song <yhs@fb.com>
Fixes: e83b9f5544 ("kbuild: add ability to generate BTF type info for vmlinux")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
[ Upstream commit 9c38f1f044 ]
Backspace is not working on some terminal emulators which do not send the
key code defined by terminfo. Terminals either send '^H' (8) or '^?' (127).
But currently only '^?' is handled. Let's also handle '^H' for those
terminals.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
commit dfbd199a7c upstream.
When compiling genheaders and mdp from a newer host kernel, the
following error happens:
In file included from scripts/selinux/genheaders/genheaders.c:18:
./security/selinux/include/classmap.h:238:2: error: #error New
address family defined, please update secclass_map. #error New
address family defined, please update secclass_map. ^~~~~
make[3]: *** [scripts/Makefile.host:107:
scripts/selinux/genheaders/genheaders] Error 1 make[2]: ***
[scripts/Makefile.build:599: scripts/selinux/genheaders] Error 2
make[1]: *** [scripts/Makefile.build:599: scripts/selinux] Error 2
make[1]: *** Waiting for unfinished jobs....
Instead of relying on the host definition, include linux/socket.h in
classmap.h to have PF_MAX.
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara <paulo@paulo.ac>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: manually merge in mdp.c, subject line tweaks]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Android has an unusual setup where the kernel needs to target
[arch]-linux-gnu to avoid Android userspace-specific flags and
optimizations, but AOSP doesn't ship a matching binutils.
Add a new variable CLANG_TRIPLE which can override the "-target" triple
used to compile the kernel, while using a different CROSS_COMPILE to
pick the binutils/gcc installation. For Android you'd do something
like:
export CLANG_TRIPLE=aarch64-linux-gnu-
export CROSS_COMPILE=aarch64-linux-android-
If you don't need something like this, leave CLANG_TRIPLE unset and it
will default to CROSS_COMPILE.
Change-Id: I85d63599c6ab8ed458071cdf9197d85b1f7f150b
Signed-off-by: Greg Hackmann <ghackmann@google.com>
[astrachan: Added a script to check for incorrectly falling back to the
default when CLANG_TRIPLE is unset]
Bug: 118439987
Bug: 120440614
Test: make CLANG_TRIPLE=x86_64-linux-gnu CC=clang
Signed-off-by: Alistair Strachan <astrachan@google.com>
I thought this script was run via "make tags" etc. but some people
run it directly.
Prior to commit a9a49c2ad9 ("kbuild: use $(srctree) instead of
KBUILD_SRC to check out-of-tree build"), in such a usecase, "tree"
was set empty since KBUILD_SRC is undefined. Now, "tree" is set to
"${srctree}/", which is evaluated to "/".
Fix it by taking into account the case where "srctree" is unset.
Link: https://lkml.org/lkml/2019/4/19/501
Fixes: a9a49c2ad9 ("kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build")
Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
recordmcount.pl uses a set of regular expressions to parse the output of
objdump(1). However, if objdump(1) output is localized, it may not match
the regular expressions, thereby preventing recordmcount.pl from parsing
object files correctly.
In order to allow recordmcount.pl to function correctly regardless of the
current locale settings, set LANG=C when running objdump(1). LC_ALL is
already unset in the top-level Makefile, so it is not necessary to also
override that environment variable.
Signed-off-by: Daniel Dadap <ddadap@nvidia.com>
Reviewed-by: Robert Morell <rmorell@nvidia.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
As we keep migrating documents to ReST, we're starting to see
more of such tags.
Right now, all such tags are pointing to a documentation file,
but regressions may be introduced.
So, add a check for such kind of issues as well.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
If one tries to run this script under linux-next, it would
hit lots of false-positives, due to the tree merges that
are stored under the Next/ directory.
So, add a logic to ignore it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge tag 'selinux-pr-20190429' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fix from Paul Moore:
"One small patch for the stable folks to fix a problem when building
against the latest glibc.
I'll be honest and say that I'm not really thrilled with the idea of
sending this up right now, but Greg is a little annoyed so here I
figured I would at least send this"
* tag 'selinux-pr-20190429' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: use kernel linux/socket.h for genheaders and mdp
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Merge 4.19.37 into android-4.19
Changes in 4.19.37
bonding: fix event handling for stacked bonds
failover: allow name change on IFF_UP slave interfaces
net: atm: Fix potential Spectre v1 vulnerabilities
net: bridge: fix per-port af_packet sockets
net: bridge: multicast: use rcu to access port list from br_multicast_start_querier
net: Fix missing meta data in skb with vlan packet
net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv
tcp: tcp_grow_window() needs to respect tcp_space()
team: set slave to promisc if team is already in promisc mode
tipc: missing entries in name table of publications
vhost: reject zero size iova range
ipv4: recompile ip options in ipv4_link_failure
ipv4: ensure rcu_read_lock() in ipv4_link_failure()
net: thunderx: raise XDP MTU to 1508
net: thunderx: don't allow jumbo frames with XDP
net/mlx5: FPGA, tls, hold rcu read lock a bit longer
net/tls: prevent bad memory access in tls_is_sk_tx_device_offloaded()
net/mlx5: FPGA, tls, idr remove on flow delete
route: Avoid crash from dereferencing NULL rt->from
sch_cake: Use tc_skb_protocol() helper for getting packet protocol
sch_cake: Make sure we can write the IP header before changing DSCP bits
nfp: flower: replace CFI with vlan present
nfp: flower: remove vlan CFI bit from push vlan action
sch_cake: Simplify logic in cake_select_tin()
net: IP defrag: encapsulate rbtree defrag code into callable functions
net: IP6 defrag: use rbtrees for IPv6 defrag
net: IP6 defrag: use rbtrees in nf_conntrack_reasm.c
CIFS: keep FileInfo handle live during oplock break
cifs: Fix use-after-free in SMB2_write
cifs: Fix use-after-free in SMB2_read
cifs: fix handle leak in smb2_query_symlink()
KVM: x86: Don't clear EFER during SMM transitions for 32-bit vCPU
KVM: x86: svm: make sure NMI is injected after nmi_singlestep
Staging: iio: meter: fixed typo
staging: iio: ad7192: Fix ad7193 channel address
iio: gyro: mpu3050: fix chip ID reading
iio/gyro/bmg160: Use millidegrees for temperature scale
iio:chemical:bme680: Fix, report temperature in millidegrees
iio:chemical:bme680: Fix SPI read interface
iio: cros_ec: Fix the maths for gyro scale calculation
iio: ad_sigma_delta: select channel when reading register
iio: dac: mcp4725: add missing powerdown bits in store eeprom
iio: Fix scan mask selection
iio: adc: at91: disable adc channel interrupt in timeout case
iio: core: fix a possible circular locking dependency
io: accel: kxcjk1013: restore the range after resume.
staging: most: core: use device description as name
staging: comedi: vmk80xx: Fix use of uninitialized semaphore
staging: comedi: vmk80xx: Fix possible double-free of ->usb_rx_buf
staging: comedi: ni_usb6501: Fix use of uninitialized mutex
staging: comedi: ni_usb6501: Fix possible double-free of ->usb_rx_buf
ALSA: hda/realtek - add two more pin configuration sets to quirk table
ALSA: core: Fix card races between register and disconnect
Input: elan_i2c - add hardware ID for multiple Lenovo laptops
serial: sh-sci: Fix HSCIF RX sampling point adjustment
serial: sh-sci: Fix HSCIF RX sampling point calculation
vt: fix cursor when clearing the screen
scsi: core: set result when the command cannot be dispatched
Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO"
Revert "svm: Fix AVIC incomplete IPI emulation"
coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
ipmi: fix sleep-in-atomic in free_user at cleanup SRCU user->release_barrier
crypto: x86/poly1305 - fix overflow during partial reduction
drm/ttm: fix out-of-bounds read in ttm_put_pages() v2
arm64: futex: Restore oldval initialization to work around buggy compilers
x86/kprobes: Verify stack frame on kretprobe
kprobes: Mark ftrace mcount handler functions nokprobe
kprobes: Fix error check when reusing optimized probes
rt2x00: do not increment sequence number while re-transmitting
mac80211: do not call driver wake_tx_queue op during reconfig
drm/amdgpu/gmc9: fix VM_L2_CNTL3 programming
perf/x86/amd: Add event map for AMD Family 17h
x86/cpu/bugs: Use __initconst for 'const' init data
perf/x86: Fix incorrect PEBS_REGS
x86/speculation: Prevent deadlock on ssb_state::lock
timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze()
nfit/ars: Remove ars_start_flags
nfit/ars: Introduce scrub_flags
nfit/ars: Allow root to busy-poll the ARS state machine
nfit/ars: Avoid stale ARS results
mmc: sdhci: Fix data command CRC error handling
mmc: sdhci: Rename SDHCI_ACMD12_ERR and SDHCI_INT_ACMD12ERR
mmc: sdhci: Handle auto-command errors
modpost: file2alias: go back to simple devtable lookup
modpost: file2alias: check prototype of handler
tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete
tpm: Fix the type of the return value in calc_tpm2_event_size()
Revert "kbuild: use -Oz instead of -Os when using clang"
sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup
device_cgroup: fix RCU imbalance in error case
mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n
ALSA: info: Fix racy addition/deletion of nodes
percpu: stop printing kernel addresses
tools include: Adopt linux/bits.h
ASoC: rockchip: add missing INTERLEAVED PCM attribute
i2c-hid: properly terminate i2c_hid_dmi_desc_override_table[] array
Revert "locking/lockdep: Add debug_locks check in __lock_downgrade()"
kernel/sysctl.c: fix out-of-bounds access when setting file-max
Linux 4.19.37
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
When compiling genheaders and mdp from a newer host kernel, the
following error happens:
In file included from scripts/selinux/genheaders/genheaders.c:18:
./security/selinux/include/classmap.h:238:2: error: #error New
address family defined, please update secclass_map. #error New
address family defined, please update secclass_map. ^~~~~
make[3]: *** [scripts/Makefile.host:107:
scripts/selinux/genheaders/genheaders] Error 1 make[2]: ***
[scripts/Makefile.build:599: scripts/selinux/genheaders] Error 2
make[1]: *** [scripts/Makefile.build:599: scripts/selinux] Error 2
make[1]: *** Waiting for unfinished jobs....
Instead of relying on the host definition, include linux/socket.h in
classmap.h to have PF_MAX.
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara <paulo@paulo.ac>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: manually merge in mdp.c, subject line tweaks]
Signed-off-by: Paul Moore <paul@paul-moore.com>
[ Upstream commit f880eea68f ]
Use specific prototype instead of an opaque pointer so that the
compiler can catch function prototype mismatch.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit ec91e78d37 ]
Commit e49ce14150 ("modpost: use linker section to generate table.")
was not so cool as we had expected first; it ended up with ugly section
hacks when commit dd2a3acaec ("mod/file2alias: make modpost compile
on darwin again") came in.
Given a certain degree of unknowledge about the link stage of host
programs, I really want to see simple, stupid table lookup so that
this works in the same way regardless of the underlying executable
format.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Right now kernel hardening options are scattered around various Kconfig
files. This can be a central place to collect these kinds of options
going forward. This is initially populated with the memory initialization
options from the gcc-plugins.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Support dynamic ftrace including dynamic graph tracer. Gcc-csky with -pg
will produce call site in every function prologue and we can use these
call site to hook trace function.
gcc with -pg origin call site:
push lr
jbsr _mcount
nop32
nop32
If the (callee - caller)'s offset is in range of bsr instruction, we'll
modify code with:
push lr
bsr _mcount
nop32
nop32
Else if the (callee - caller)'s offset is out of bsr instrunction, we'll
modify code with:
push lr
movih r26, ...
ori r26, ...
jsr r26
(r26 is reserved for jsr link reg in csky abiv2 spec.)
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
patch(1) doesn't set the x bit on files. So if someone downloads and
applies patch-4.21.xz, their kernel won't build. Fix that by executing
/bin/sh.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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1I68sLm7/rs95+WazKu66ewW8bh91VAo+Gmpfo5zEJjcfajnDxY=
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-----END PGP SIGNATURE-----
Merge 4.19.35 into android-4.19
Changes in 4.19.35
kvm: nVMX: NMI-window and interrupt-window exiting should wake L2 from HLT
drm/i915/gvt: do not let pin count of shadow mm go negative
powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM
hv_netvsc: Fix unwanted wakeup after tx_disable
ibmvnic: Fix completion structure initialization
ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type
ipv6: Fix dangling pointer when ipv6 fragment
ipv6: sit: reset ip header pointer in ipip6_rcv
kcm: switch order of device registration to fix a crash
net: ethtool: not call vzalloc for zero sized memory request
net-gro: Fix GRO flush when receiving a GSO packet.
net/mlx5: Decrease default mr cache size
netns: provide pure entropy for net_hash_mix()
net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock().
net/sched: act_sample: fix divide by zero in the traffic path
net/sched: fix ->get helper of the matchall cls
openvswitch: fix flow actions reallocation
qmi_wwan: add Olicard 600
r8169: disable ASPM again
sctp: initialize _pad of sockaddr_in before copying to user memory
tcp: Ensure DCTCP reacts to losses
tcp: fix a potential NULL pointer dereference in tcp_sk_exit
vrf: check accept_source_route on the original netdevice
net/mlx5e: Fix error handling when refreshing TIRs
net/mlx5e: Add a lock on tir list
nfp: validate the return code from dev_queue_xmit()
nfp: disable netpoll on representors
bnxt_en: Improve RX consumer index validity check.
bnxt_en: Reset device on RX buffer errors.
net: ip_gre: fix possible use-after-free in erspan_rcv
net: ip6_gre: fix possible use-after-free in ip6erspan_rcv
net: core: netif_receive_skb_list: unlist skb before passing to pt->func
r8169: disable default rx interrupt coalescing on RTL8168
net: mlx5: Add a missing check on idr_find, free buf
net/mlx5e: Update xoff formula
net/mlx5e: Update xon formula
kbuild: deb-pkg: fix bindeb-pkg breakage when O= is used
kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD
x86/vdso: Drop implicit common-page-size linker flag
lib/string.c: implement a basic bcmp
Revert "clk: meson: clean-up clock registration"
netfilter: nfnetlink_cttimeout: pass default timeout policy to obj_to_nlattr
netfilter: nfnetlink_cttimeout: fetch timeouts for udplite and gre, too
arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region
tty: mark Siemens R3964 line discipline as BROKEN
tty: ldisc: add sysctl to prevent autoloading of ldiscs
hwmon: (w83773g) Select REGMAP_I2C to fix build error
ACPICA: Clear status of GPEs before enabling them
ACPICA: Namespace: remove address node from global list after method termination
ALSA: seq: Fix OOB-reads from strlcpy
ALSA: hda/realtek: Enable headset MIC of Acer TravelMate B114-21 with ALC233
ALSA: hda/realtek - Add quirk for Tuxedo XC 1509
ALSA: hda - Add two more machines to the power_save_blacklist
mm/huge_memory.c: fix modifying of page protection by insert_pfn_pmd()
arm64: dts: rockchip: fix rk3328 sdmmc0 write errors
parisc: Detect QEMU earlier in boot process
parisc: regs_return_value() should return gpr28
parisc: also set iaoq_b in instruction_pointer_set()
alarmtimer: Return correct remaining time
drm/i915/gvt: do not deliver a workload if its creation fails
drm/udl: add a release method and delay modeset teardown
kvm: svm: fix potential get_num_contig_pages overflow
include/linux/bitrev.h: fix constant bitrev
mm: writeback: use exact memcg dirty counts
ASoC: intel: Fix crash at suspend/resume after failed codec registration
ASoC: fsl_esai: fix channel swap issue when stream starts
Btrfs: do not allow trimming when a fs is mounted with the nologreplay option
btrfs: prop: fix zstd compression parameter validation
btrfs: prop: fix vanished compression property after failed set
riscv: Fix syscall_get_arguments() and syscall_set_arguments()
block: do not leak memory in bio_copy_user_iov()
block: fix the return errno for direct IO
genirq: Respect IRQCHIP_SKIP_SET_WAKE in irq_chip_set_wake_parent()
genirq: Initialize request_mutex if CONFIG_SPARSE_IRQ=n
virtio: Honour 'may_reduce_num' in vring_create_virtqueue
ARM: dts: rockchip: fix rk3288 cpu opp node reference
ARM: dts: am335x-evmsk: Correct the regulators for the audio codec
ARM: dts: am335x-evm: Correct the regulators for the audio codec
ARM: dts: at91: Fix typo in ISC_D0 on PC9
arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value
arm64: dts: rockchip: fix rk3328 rgmii high tx error rate
arm64: backtrace: Don't bother trying to unwind the userspace stack
xen: Prevent buffer overflow in privcmd ioctl
sched/fair: Do not re-read ->h_load_next during hierarchical load calculation
xtensa: fix return_address
x86/asm: Remove dead __GNUC__ conditionals
x86/asm: Use stricter assembly constraints in bitops
x86/perf/amd: Resolve race condition when disabling PMC
x86/perf/amd: Resolve NMI latency issues for active PMCs
x86/perf/amd: Remove need to check "running" bit in NMI handler
PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller
PCI: pciehp: Ignore Link State Changes after powering off a slot
dm integrity: change memcmp to strncmp in dm_integrity_ctr
dm: revert 8f50e35815 ("dm: limit the max bio size as BIO_MAX_PAGES * PAGE_SIZE")
dm table: propagate BDI_CAP_STABLE_WRITES to fix sporadic checksum errors
dm integrity: fix deadlock with overlapping I/O
arm64: dts: rockchip: fix vcc_host1_5v pin assign on rk3328-rock64
arm64: dts: rockchip: Fix vcc_host1_5v GPIO polarity on rk3328-rock64
ACPICA: AML interpreter: add region addresses in global list during initialization
KVM: x86: nVMX: close leak of L0's x2APIC MSRs (CVE-2019-3887)
KVM: x86: nVMX: fix x2APIC VTPR read intercept
Linux 4.19.35
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 02826a6ba3 ]
Ard Biesheuvel reports bindeb-pkg with O= option is broken in the
following way:
...
LD [M] sound/soc/rockchip/snd-soc-rk3399-gru-sound.ko
LD [M] sound/soc/rockchip/snd-soc-rockchip-pcm.ko
LD [M] sound/soc/rockchip/snd-soc-rockchip-rt5645.ko
LD [M] sound/soc/rockchip/snd-soc-rockchip-spdif.ko
LD [M] sound/soc/sh/rcar/snd-soc-rcar.ko
fakeroot -u debian/rules binary
make KERNELRELEASE=4.19.0-12677-g19beffaf7a99-dirty ARCH=arm64 KBUILD_SRC= intdeb-pkg
/bin/bash /home/ard/linux/scripts/package/builddeb
Makefile:600: include/config/auto.conf: No such file or directory
***
*** Configuration file ".config" not found!
***
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").
***
make[12]: *** [syncconfig] Error 1
make[11]: *** [syncconfig] Error 2
make[10]: *** [include/config/auto.conf] Error 2
make[9]: *** [__sub-make] Error 2
...
Prior to commit 80463f1b7b ("kbuild: add --include-dir flag only
for out-of-tree build"), both srctree and objtree were added to
--include-dir redundantly, and the wrong code '$MAKE image_name'
was working by relying on that. Now, the potential issue that had
previously been hidden just showed up.
'$MAKE image_name' recurses to the generated $(objtree)/Makefile and
ends up with running in srctree, which is incorrect. It should be
invoked with '-f $srctree/Makefile' (or KBUILD_SRC=) to be executed
in objtree.
Fixes: 80463f1b7b ("kbuild: add --include-dir flag only for out-of-tree build")
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
When CONFIG_DEBUG_INFO_BTF is enabled but available version of pahole is too
old to support BTF generation, build script is supposed to emit warning and
proceed with the build. Due to using exit instead of return from BASH function,
existing handling code prematurely exits exit code 0, not completing some of
the build steps. This patch fixes issue by correctly returning just from
gen_btf() function only.
Fixes: e83b9f5544 ("kbuild: add ability to generate BTF type info for vmlinux")
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-04-12
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Improve BPF verifier scalability for large programs through two
optimizations: i) remove verifier states that are not useful in pruning,
ii) stop walking parentage chain once first LIVE_READ is seen. Combined
gives approx 20x speedup. Increase limits for accepting large programs
under root, and add various stress tests, from Alexei.
2) Implement global data support in BPF. This enables static global variables
for .data, .rodata and .bss sections to be properly handled which allows
for more natural program development. This also opens up the possibility
to optimize program workflow by compiling ELFs only once and later only
rewriting section data before reload, from Daniel and with test cases and
libbpf refactoring from Joe.
3) Add config option to generate BTF type info for vmlinux as part of the
kernel build process. DWARF debug info is converted via pahole to BTF.
Latter relies on libbpf and makes use of BTF deduplication algorithm which
results in 100x savings compared to DWARF data. Resulting .BTF section is
typically about 2MB in size, from Andrii.
4) Add BPF verifier support for stack access with variable offset from
helpers and add various test cases along with it, from Andrey.
5) Extend bpf_skb_adjust_room() growth BPF helper to mark inner MAC header
so that L2 encapsulation can be used for tc tunnels, from Alan.
6) Add support for input __sk_buff context in BPF_PROG_TEST_RUN so that
users can define a subset of allowed __sk_buff fields that get fed into
the test program, from Stanislav.
7) Add bpf fs multi-dimensional array tests for BTF test suite and fix up
various UBSAN warnings in bpftool, from Yonghong.
8) Generate a pkg-config file for libbpf, from Luca.
9) Dump program's BTF id in bpftool, from Prashant.
10) libbpf fix to use smaller BPF log buffer size for AF_XDP's XDP
program, from Magnus.
11) kallsyms related fixes for the case when symbols are not present in
BPF selftests and samples, from Daniel
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit ea837f1c05 ("kbuild: make modpost processing configurable")
was intended to give KBUILD_MODPOST_WARN flexibility to be configurable.
Right now KBUILD_MODPOST_WARN gets just ignored when KBUILD_EXTMOD is
set which happens per default when building modules out of the tree.
This change gives the opportunity to define module build behaving also
in case of out of tree builds and default will become exit on error.
Errors which can be detected by the build should be trapped out of the box
there, unless somebody wants to notice broken stuff later at runtime.
As this patch changes the default behaving from warning to error,
users can consider to fix it for external module builds by:
- providing module symbol table via KBUILD_EXTRA_SYMBOLS for
modules which are dependent
- OR getting old behaving back by passing KBUILD_MODPOST_WARN to the build
Signed-off-by: Wladislav Wiebe <wladislav.wiebe@nokia.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Although it's not required for the build *conf-cfg.sh scripts to be
executable (they're run by CONFIG_SHELL), let's be consistent with other
scripts.
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Commit 9c225f2655 ("vfs: atomic f_pos accesses as per POSIX") added
locking for file.f_pos access and in particular made concurrent read and
write not possible - now both those functions take f_pos lock for the
whole run, and so if e.g. a read is blocked waiting for data, write will
deadlock waiting for that read to complete.
This caused regression for stream-like files where previously read and
write could run simultaneously, but after that patch could not do so
anymore. See e.g. commit 581d21a2d0 ("xenbus: fix deadlock on writes
to /proc/xen/xenbus") which fixes such regression for particular case of
/proc/xen/xenbus.
The patch that added f_pos lock in 2014 did so to guarantee POSIX thread
safety for read/write/lseek and added the locking to file descriptors of
all regular files. In 2014 that thread-safety problem was not new as it
was already discussed earlier in 2006.
However even though 2006'th version of Linus's patch was adding f_pos
locking "only for files that are marked seekable with FMODE_LSEEK (thus
avoiding the stream-like objects like pipes and sockets)", the 2014
version - the one that actually made it into the tree as 9c225f2655 -
is doing so irregardless of whether a file is seekable or not.
See
https://lore.kernel.org/lkml/53022DB1.4070805@gmail.com/https://lwn.net/Articles/180387https://lwn.net/Articles/180396
for historic context.
The reason that it did so is, probably, that there are many files that
are marked non-seekable, but e.g. their read implementation actually
depends on knowing current position to correctly handle the read. Some
examples:
kernel/power/user.c snapshot_read
fs/debugfs/file.c u32_array_read
fs/fuse/control.c fuse_conn_waiting_read + ...
drivers/hwmon/asus_atk0110.c atk_debugfs_ggrp_read
arch/s390/hypfs/inode.c hypfs_read_iter
...
Despite that, many nonseekable_open users implement read and write with
pure stream semantics - they don't depend on passed ppos at all. And for
those cases where read could wait for something inside, it creates a
situation similar to xenbus - the write could be never made to go until
read is done, and read is waiting for some, potentially external, event,
for potentially unbounded time -> deadlock.
Besides xenbus, there are 14 such places in the kernel that I've found
with semantic patch (see below):
drivers/xen/evtchn.c:667:8-24: ERROR: evtchn_fops: .read() can deadlock .write()
drivers/isdn/capi/capi.c:963:8-24: ERROR: capi_fops: .read() can deadlock .write()
drivers/input/evdev.c:527:1-17: ERROR: evdev_fops: .read() can deadlock .write()
drivers/char/pcmcia/cm4000_cs.c:1685:7-23: ERROR: cm4000_fops: .read() can deadlock .write()
net/rfkill/core.c:1146:8-24: ERROR: rfkill_fops: .read() can deadlock .write()
drivers/s390/char/fs3270.c:488:1-17: ERROR: fs3270_fops: .read() can deadlock .write()
drivers/usb/misc/ldusb.c:310:1-17: ERROR: ld_usb_fops: .read() can deadlock .write()
drivers/hid/uhid.c:635:1-17: ERROR: uhid_fops: .read() can deadlock .write()
net/batman-adv/icmp_socket.c:80:1-17: ERROR: batadv_fops: .read() can deadlock .write()
drivers/media/rc/lirc_dev.c:198:1-17: ERROR: lirc_fops: .read() can deadlock .write()
drivers/leds/uleds.c:77:1-17: ERROR: uleds_fops: .read() can deadlock .write()
drivers/input/misc/uinput.c:400:1-17: ERROR: uinput_fops: .read() can deadlock .write()
drivers/infiniband/core/user_mad.c:985:7-23: ERROR: umad_fops: .read() can deadlock .write()
drivers/gnss/core.c:45:1-17: ERROR: gnss_fops: .read() can deadlock .write()
In addition to the cases above another regression caused by f_pos
locking is that now FUSE filesystems that implement open with
FOPEN_NONSEEKABLE flag, can no longer implement bidirectional
stream-like files - for the same reason as above e.g. read can deadlock
write locking on file.f_pos in the kernel.
FUSE's FOPEN_NONSEEKABLE was added in 2008 in a7c1b990f7 ("fuse:
implement nonseekable open") to support OSSPD. OSSPD implements /dev/dsp
in userspace with FOPEN_NONSEEKABLE flag, with corresponding read and
write routines not depending on current position at all, and with both
read and write being potentially blocking operations:
See
https://github.com/libfuse/osspdhttps://lwn.net/Articles/308445https://github.com/libfuse/osspd/blob/14a9cff0/osspd.c#L1406https://github.com/libfuse/osspd/blob/14a9cff0/osspd.c#L1438-L1477https://github.com/libfuse/osspd/blob/14a9cff0/osspd.c#L1479-L1510
Corresponding libfuse example/test also describes FOPEN_NONSEEKABLE as
"somewhat pipe-like files ..." with read handler not using offset.
However that test implements only read without write and cannot exercise
the deadlock scenario:
https://github.com/libfuse/libfuse/blob/fuse-3.4.2-3-ga1bff7d/example/poll.c#L124-L131https://github.com/libfuse/libfuse/blob/fuse-3.4.2-3-ga1bff7d/example/poll.c#L146-L163https://github.com/libfuse/libfuse/blob/fuse-3.4.2-3-ga1bff7d/example/poll.c#L209-L216
I've actually hit the read vs write deadlock for real while implementing
my FUSE filesystem where there is /head/watch file, for which open
creates separate bidirectional socket-like stream in between filesystem
and its user with both read and write being later performed
simultaneously. And there it is semantically not easy to split the
stream into two separate read-only and write-only channels:
https://lab.nexedi.com/kirr/wendelin.core/blob/f13aa600/wcfs/wcfs.go#L88-169
Let's fix this regression. The plan is:
1. We can't change nonseekable_open to include &~FMODE_ATOMIC_POS -
doing so would break many in-kernel nonseekable_open users which
actually use ppos in read/write handlers.
2. Add stream_open() to kernel to open stream-like non-seekable file
descriptors. Read and write on such file descriptors would never use
nor change ppos. And with that property on stream-like files read and
write will be running without taking f_pos lock - i.e. read and write
could be running simultaneously.
3. With semantic patch search and convert to stream_open all in-kernel
nonseekable_open users for which read and write actually do not
depend on ppos and where there is no other methods in file_operations
which assume @offset access.
4. Add FOPEN_STREAM to fs/fuse/ and open in-kernel file-descriptors via
steam_open if that bit is present in filesystem open reply.
It was tempting to change fs/fuse/ open handler to use stream_open
instead of nonseekable_open on just FOPEN_NONSEEKABLE flags, but
grepping through Debian codesearch shows users of FOPEN_NONSEEKABLE,
and in particular GVFS which actually uses offset in its read and
write handlers
https://codesearch.debian.net/search?q=-%3Enonseekable+%3Dhttps://gitlab.gnome.org/GNOME/gvfs/blob/1.40.0-6-gcbc54396/client/gvfsfusedaemon.c#L1080https://gitlab.gnome.org/GNOME/gvfs/blob/1.40.0-6-gcbc54396/client/gvfsfusedaemon.c#L1247-1346https://gitlab.gnome.org/GNOME/gvfs/blob/1.40.0-6-gcbc54396/client/gvfsfusedaemon.c#L1399-1481
so if we would do such a change it will break a real user.
5. Add stream_open and FOPEN_STREAM handling to stable kernels starting
from v3.14+ (the kernel where 9c225f2655 first appeared).
This will allow to patch OSSPD and other FUSE filesystems that
provide stream-like files to return FOPEN_STREAM | FOPEN_NONSEEKABLE
in their open handler and this way avoid the deadlock on all kernel
versions. This should work because fs/fuse/ ignores unknown open
flags returned from a filesystem and so passing FOPEN_STREAM to a
kernel that is not aware of this flag cannot hurt. In turn the kernel
that is not aware of FOPEN_STREAM will be < v3.14 where just
FOPEN_NONSEEKABLE is sufficient to implement streams without read vs
write deadlock.
This patch adds stream_open, converts /proc/xen/xenbus to it and adds
semantic patch to automatically locate in-kernel places that are either
required to be converted due to read vs write deadlock, or that are just
safe to be converted because read and write do not use ppos and there
are no other funky methods in file_operations.
Regarding semantic patch I've verified each generated change manually -
that it is correct to convert - and each other nonseekable_open instance
left - that it is either not correct to convert there, or that it is not
converted due to current stream_open.cocci limitations.
The script also does not convert files that should be valid to convert,
but that currently have .llseek = noop_llseek or generic_file_llseek for
unknown reason despite file being opened with nonseekable_open (e.g.
drivers/input/mousedev.c)
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yongzhi Pan <panyongzhi@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Tejun Heo <tj@kernel.org>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Nikolaus Rath <Nikolaus@rath.org>
Cc: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Kirill Smelkov <kirr@nexedi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It is important that UACCESS regions are as small as possible;
furthermore the UACCESS state is not scheduled, so doing anything that
might directly call into the scheduler will cause random code to be
ran with UACCESS enabled.
Teach objtool too track UACCESS state and warn about any CALL made
while UACCESS is enabled. This very much includes the __fentry__()
and __preempt_schedule() calls.
Note that exceptions _do_ save/restore the UACCESS state, and therefore
they can drive preemption. This also means that all exception handlers
must have an otherwise redundant UACCESS disable instruction;
therefore ignore this warning for !STT_FUNC code (exception handlers
are not normal functions).
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge 4.19.33 into android-4.19
Changes in 4.19.33
Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt
Bluetooth: Verify that l2cap_get_conf_opt provides large enough buffer
ipmi_si: Fix crash when using hard-coded device
dccp: do not use ipv6 header for ipv4 flow
genetlink: Fix a memory leak on error path
gtp: change NET_UDP_TUNNEL dependency to select
ipv6: make ip6_create_rt_rcu return ip6_null_entry instead of NULL
mac8390: Fix mmio access size probe
mISDN: hfcpci: Test both vendor & device ID for Digium HFC4S
net: aquantia: fix rx checksum offload for UDP/TCP over IPv6
net: datagram: fix unbounded loop in __skb_try_recv_datagram()
net/packet: Set __GFP_NOWARN upon allocation in alloc_pg_vec
net: phy: meson-gxl: fix interrupt support
net: rose: fix a possible stack overflow
net: stmmac: fix memory corruption with large MTUs
net-sysfs: call dev_hold if kobject_init_and_add success
packets: Always register packet sk in the same order
rhashtable: Still do rehash when we get EEXIST
sctp: get sctphdr by offset in sctp_compute_cksum
sctp: use memdup_user instead of vmemdup_user
tcp: do not use ipv6 header for ipv4 flow
tipc: allow service ranges to be connect()'ed on RDM/DGRAM
tipc: change to check tipc_own_id to return in tipc_net_stop
tipc: fix cancellation of topology subscriptions
tun: properly test for IFF_UP
vrf: prevent adding upper devices
vxlan: Don't call gro_cells_destroy() before device is unregistered
ila: Fix rhashtable walker list corruption
net: sched: fix cleanup NULL pointer exception in act_mirr
thunderx: enable page recycling for non-XDP case
thunderx: eliminate extra calls to put_page() for pages held for recycling
tun: add a missing rcu_read_unlock() in error path
powerpc/fsl: Add infrastructure to fixup branch predictor flush
powerpc/fsl: Add macro to flush the branch predictor
powerpc/fsl: Emulate SPRN_BUCSR register
powerpc/fsl: Add nospectre_v2 command line argument
powerpc/fsl: Flush the branch predictor at each kernel entry (64bit)
powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit)
powerpc/fsl: Flush branch predictor when entering KVM
powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used
powerpc/fsl: Update Spectre v2 reporting
powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup'
powerpc/fsl: Fix the flush of branch predictor.
powerpc/security: Fix spectre_v2 reporting
Btrfs: fix incorrect file size after shrinking truncate and fsync
btrfs: remove WARN_ON in log_dir_items
btrfs: don't report readahead errors and don't update statistics
btrfs: raid56: properly unmap parity page in finish_parity_scrub()
btrfs: Avoid possible qgroup_rsv_size overflow in btrfs_calculate_inode_block_rsv_size
Btrfs: fix assertion failure on fsync with NO_HOLES enabled
ARM: imx6q: cpuidle: fix bug that CPU might not wake up at expected time
powerpc: bpf: Fix generation of load/store DW instructions
vfio: ccw: only free cp on final interrupt
NFS: fix mount/umount race in nlmclnt.
NFSv4.1 don't free interrupted slot on open
net: dsa: qca8k: remove leftover phy accessors
ALSA: rawmidi: Fix potential Spectre v1 vulnerability
ALSA: seq: oss: Fix Spectre v1 vulnerability
ALSA: pcm: Fix possible OOB access in PCM oss plugins
ALSA: pcm: Don't suspend stream in unrecoverable PCM state
ALSA: hda/realtek - Add support headset mode for DELL WYSE AIO
ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB
ALSA: hda/realtek: Enable headset MIC of Acer AIO with ALC286
ALSA: hda/realtek: Enable headset MIC of Acer Aspire Z24-890 with ALC286
ALSA: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic
ALSA: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256
ALSA: hda/realtek: Enable headset mic of ASUS P5440FF with ALC256
ALSA: hda/realtek: Enable headset MIC of ASUS X430UN and X512DK with ALC256
ALSA: hda/realtek - Fix speakers on Acer Predator Helios 500 Ryzen laptops
kbuild: modversions: Fix relative CRC byte order interpretation
fs/open.c: allow opening only regular files during execve()
ocfs2: fix inode bh swapping mixup in ocfs2_reflink_inodes_lock
scsi: sd: Fix a race between closing an sd device and sd I/O
scsi: sd: Quiesce warning if device does not report optimal I/O size
scsi: zfcp: fix rport unblock if deleted SCSI devices on Scsi_Host
scsi: zfcp: fix scsi_eh host reset with port_forced ERP for non-NPIV FCP devices
drm/rockchip: vop: reset scale mode when win is disabled
tty: mxs-auart: fix a potential NULL pointer dereference
tty: atmel_serial: fix a potential NULL pointer dereference
tty: serial: qcom_geni_serial: Initialize baud in qcom_geni_console_setup
staging: comedi: ni_mio_common: Fix divide-by-zero for DIO cmdtest
staging: speakup_soft: Fix alternate speech with other synths
staging: vt6655: Remove vif check from vnt_interrupt
staging: vt6655: Fix interrupt race condition on device start up.
staging: erofs: fix to handle error path of erofs_vmap()
serial: max310x: Fix to avoid potential NULL pointer dereference
serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference
serial: sh-sci: Fix setting SCSCR_TIE while transferring data
USB: serial: cp210x: add new device id
USB: serial: ftdi_sio: add additional NovaTech products
USB: serial: mos7720: fix mos_parport refcount imbalance on error path
USB: serial: option: set driver_info for SIM5218 and compatibles
USB: serial: option: add support for Quectel EM12
USB: serial: option: add Olicard 600
Disable kgdboc failed by echo space to /sys/module/kgdboc/parameters/kgdboc
fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links
drm/vgem: fix use-after-free when drm_gem_handle_create() fails
drm/vkms: fix use-after-free when drm_gem_handle_create() fails
drm/i915/gvt: Fix MI_FLUSH_DW parsing with correct index check
gpio: exar: add a check for the return value of ida_simple_get fails
gpio: adnp: Fix testing wrong value in adnp_gpio_direction_input
phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs
usb: mtu3: fix EXTCON dependency
USB: gadget: f_hid: fix deadlock in f_hidg_write()
usb: common: Consider only available nodes for dr_mode
usb: host: xhci-rcar: Add XHCI_TRUST_TX_LENGTH quirk
xhci: Fix port resume done detection for SS ports with LPM enabled
usb: xhci: dbc: Don't free all memory with spinlock held
xhci: Don't let USB3 ports stuck in polling state prevent suspend
usb: cdc-acm: fix race during wakeup blocking TX traffic
mm: add support for kmem caches in DMA32 zone
iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debugging
mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified
mm/migrate.c: add missing flush_dcache_page for non-mapped page migrate
perf pmu: Fix parser error for uncore event alias
perf intel-pt: Fix TSC slip
objtool: Query pkg-config for libelf location
powerpc/pseries/energy: Use OF accessor functions to read ibm,drc-indexes
powerpc/64: Fix memcmp reading past the end of src/dest
watchdog: Respect watchdog cpumask on CPU hotplug
cpu/hotplug: Prevent crash when CPU bringup fails on CONFIG_HOTPLUG_CPU=n
x86/smp: Enforce CONFIG_HOTPLUG_CPU when SMP=y
KVM: Reject device ioctls from processes other than the VM's creator
KVM: x86: update %rip after emulating IO
KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts
staging: erofs: fix error handling when failed to read compresssed data
staging: erofs: keep corrupted fs from crashing kernel in erofs_readdir()
bpf: do not restore dst_reg when cur_state is freed
drivers: base: Helpers for adding device connection descriptions
platform: x86: intel_cht_int33fe: Register all connections at once
platform: x86: intel_cht_int33fe: Add connection for the DP alt mode
platform: x86: intel_cht_int33fe: Add connections for the USB Type-C port
usb: typec: class: Don't use port parent for getting mux handles
platform: x86: intel_cht_int33fe: Remove the old connections for the muxes
Linux 4.19.33
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 54a7151b14 upstream.
Fix commit 56067812d5 ("kbuild: modversions: add infrastructure for
emitting relative CRCs") where CRCs are interpreted in host byte order
rather than proper kernel byte order. The bug is conditional on
CONFIG_MODULE_REL_CRCS.
For example, when loading a BE module into a BE kernel compiled with a LE
system, the error "disagrees about version of symbol module_layout" is
produced. A message such as "Found checksum D7FA6856 vs module 5668FAD7"
will be given with debug enabled, which indicates an obvious endian
problem within __kcrctab within the kernel image.
The general solution is to use the macro TO_NATIVE, as is done in
similar cases throughout modpost.c. With this correction it has been
verified that a BE kernel compiled with a LE system accepts BE modules.
This change has also been verified with a LE kernel compiled with a LE
system, in which case TO_NATIVE returns its value unmodified since the
byte orders match. This is by far the common case.
Fixes: 56067812d5 ("kbuild: modversions: add infrastructure for emitting relative CRCs")
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Cc: stable@vger.kernel.org
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds new config option to trigger generation of BTF type
information from DWARF debuginfo for vmlinux and kernel modules through
pahole, which in turn relies on libbpf for btf_dedup() algorithm.
The intent is to record compact type information of all types used
inside kernel, including all the structs/unions/typedefs/etc. This
enables BPF's compile-once-run-everywhere ([0]) approach, in which
tracing programs that are inspecting kernel's internal data (e.g.,
struct task_struct) can be compiled on a system running some kernel
version, but would be possible to run on other kernel versions (and
configurations) without recompilation, even if the layout of structs
changed and/or some of the fields were added, removed, or renamed.
This is only possible if BPF loader can get kernel type info to adjust
all the offsets correctly. This patch is a first time in this direction,
making sure that BTF type info is part of Linux kernel image in
non-loadable ELF section.
BTF deduplication ([1]) algorithm typically provides 100x savings
compared to DWARF data, so resulting .BTF section is not big as is
typically about 2MB in size.
[0] http://vger.kernel.org/lpc-bpf2018.html#session-2
[1] https://facebookmicrosites.github.io/bpf/blog/2018/11/14/btf-enhancement.html
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
KBUILD_SRC was conventionally used for some different purposes:
[1] To remember the source tree path
[2] As a flag to check if sub-make is already done
[3] As a flag to check if Kbuild runs out of tree
For [1], we do not need to remember it because the top Makefile
can compute it by $(realpath $(dir $(lastword $(MAKEFILE_LIST))))
[2] has been replaced with self-commenting 'sub_make_done'.
For [3], we can distinguish in-tree/out-of-tree by comparing
$(srctree) and '.'
This commit converts [3] to prepare for the KBUILD_SRC removal.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Now that Kbuild is able to start from any directory, the generated
Makefile can simply wrap the top Makefile.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kieran Bingham <kbingham@kernel.org>
This hunk was added to avoid accidental overwrite of the top Makefile
in case O= points to the top of the source tree.
As commit 4f1127e204 ("kbuild: fix infinite make recursion"),
it caused some troubles in the past because Kbuild assumes O=
as out-of-tree build, while it actually works in the source tree.
Now this works more properly; if O= points to the source directory,
it is handled as in-tree build. So, this sanity check is unneeded.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The usage of latexmk improves the PDF output, as it re-run
xelatex when it detects the need, in order to properly generate
indexes and cross-references.
As this is not a mandatory requirement, only suggest its
addition.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Merge misc fixes from Andrew Morton:
"22 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links
fs: fs_parser: fix printk format warning
checkpatch: add %pt as a valid vsprintf extension
mm/migrate.c: add missing flush_dcache_page for non-mapped page migrate
drivers/block/zram/zram_drv.c: fix idle/writeback string compare
mm/page_isolation.c: fix a wrong flag in set_migratetype_isolate()
mm/memory_hotplug.c: fix notification in offline error path
ptrace: take into account saved_sigmask in PTRACE{GET,SET}SIGMASK
fs/proc/kcore.c: make kcore_modules static
include/linux/list.h: fix list_is_first() kernel-doc
mm/debug.c: fix __dump_page when mapping->host is not set
mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified
include/linux/hugetlb.h: convert to use vm_fault_t
iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debugging
mm: add support for kmem caches in DMA32 zone
ocfs2: fix inode bh swapping mixup in ocfs2_reflink_inodes_lock
mm/hotplug: fix offline undo_isolate_page_range()
fs/open.c: allow opening only regular files during execve()
mailmap: add Changbin Du
mm/debug.c: add a cast to u64 for atomic64_read()
...
Commit 4d42c44727 ("lib/vsprintf: Print time and date in human
readable format via %pt") introduced a new extension, %pt.
Add it in the list of valid extensions.
Link: http://lkml.kernel.org/r/20190314203719.29130-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Backspace is not working on some terminal emulators which do not send the
key code defined by terminfo. Terminals either send '^H' (8) or '^?' (127).
But currently only '^?' is handled. Let's also handle '^H' for those
terminals.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Fix commit 56067812d5 ("kbuild: modversions: add infrastructure for
emitting relative CRCs") where CRCs are interpreted in host byte order
rather than proper kernel byte order. The bug is conditional on
CONFIG_MODULE_REL_CRCS.
For example, when loading a BE module into a BE kernel compiled with a LE
system, the error "disagrees about version of symbol module_layout" is
produced. A message such as "Found checksum D7FA6856 vs module 5668FAD7"
will be given with debug enabled, which indicates an obvious endian
problem within __kcrctab within the kernel image.
The general solution is to use the macro TO_NATIVE, as is done in
similar cases throughout modpost.c. With this correction it has been
verified that a BE kernel compiled with a LE system accepts BE modules.
This change has also been verified with a LE kernel compiled with a LE
system, in which case TO_NATIVE returns its value unmodified since the
byte orders match. This is by far the common case.
Fixes: 56067812d5 ("kbuild: modversions: add infrastructure for emitting relative CRCs")
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Cc: stable@vger.kernel.org
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Summary was copy and pasted from array_size.cocci.
Signed-off-by: Michael Stefaniuc <mstefani@mykolab.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
CC_FLAGS_FTRACE may contain trailing whitespace that interferes with
findstring.
For example, commit 6977f95e63 ("powerpc: avoid -mno-sched-epilog on
GCC 4.9 and newer") introduced a change such that on my ppc64le box,
CC_FLAGS_FTRACE="-pg -mprofile-kernel ". (Note the trailing space.)
When cmd_record_mcount is now invoked, findstring fails as the ftrace
flags were found at very end of _c_flags, without the trailing space.
_c_flags=" ... -pg -mprofile-kernel"
CC_FLAGS_FTRACE="-pg -mprofile-kernel "
^
findstring is looking for this extra space
Remove the redundant whitespaces from CC_FLAGS_FTRACE in
cmd_record_mcount to avoid this problem.
[masahiro.yamada: This issue only happens in the released versions
of GNU Make. CC_FLAGS_FTRACE will not contain the trailing space if
you use the latest GNU Make, which contains commit b90fabc8d6f3
("* NEWS: Do not insert a space during '+=' if the value is empty.") ]
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com> (refactoring)
Fixes: 6977f95e63 ("powerpc: avoid -mno-sched-epilog on GCC 4.9 and newer").
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Don't complain about a return when this function returns "&pdev->dev".
Fixes: da9cfb87a4 ("coccinelle: semantic code search for missing put_device()")
Reported-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The purpose of Co-developed-by: is to give attribution to authors who
aren't already attributed by the From: tag, i.e. who aren't the nominal
patch author. Because Co-developed-by: is essentially a variation of
From:, it must be accompanied by a Signed-off-by: of the associated
co-author. To ease the burden of determining whether or not co-authors
have signed off, Co-developed-by and Signed-off-by: must be explicitly
paired, i.e. on consecutive lines for a given co-author.
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge 4.19.31 into android-4.19
Changes in 4.19.31
media: videobuf2-v4l2: drop WARN_ON in vb2_warn_zero_bytesused()
9p: use inode->i_lock to protect i_size_write() under 32-bit
9p/net: fix memory leak in p9_client_create
ASoC: fsl_esai: fix register setting issue in RIGHT_J mode
ASoC: codecs: pcm186x: fix wrong usage of DECLARE_TLV_DB_SCALE()
ASoC: codecs: pcm186x: Fix energysense SLEEP bit
iio: adc: exynos-adc: Fix NULL pointer exception on unbind
mei: hbm: clean the feature flags on link reset
mei: bus: move hw module get/put to probe/release
stm class: Fix an endless loop in channel allocation
crypto: caam - fix hash context DMA unmap size
crypto: ccree - fix missing break in switch statement
crypto: caam - fixed handling of sg list
crypto: caam - fix DMA mapping of stack memory
crypto: ccree - fix free of unallocated mlli buffer
crypto: ccree - unmap buffer before copying IV
crypto: ccree - don't copy zero size ciphertext
crypto: cfb - add missing 'chunksize' property
crypto: cfb - remove bogus memcpy() with src == dest
crypto: ahash - fix another early termination in hash walk
crypto: rockchip - fix scatterlist nents error
crypto: rockchip - update new iv to device in multiple operations
drm/imx: ignore plane updates on disabled crtcs
gpu: ipu-v3: Fix i.MX51 CSI control registers offset
drm/imx: imx-ldb: add missing of_node_puts
gpu: ipu-v3: Fix CSI offsets for imx53
ASoC: rt5682: Correct the setting while select ASRC clk for AD/DA filter
clocksource: timer-ti-dm: Fix pwm dmtimer usage of fck reparenting
KVM: arm/arm64: vgic: Make vgic_dist->lpi_list_lock a raw_spinlock
arm64: dts: rockchip: fix graph_port warning on rk3399 bob kevin and excavator
s390/dasd: fix using offset into zero size array error
Input: pwm-vibra - prevent unbalanced regulator
Input: pwm-vibra - stop regulator after disabling pwm, not before
ARM: dts: Configure clock parent for pwm vibra
ARM: OMAP2+: Variable "reg" in function omap4_dsi_mux_pads() could be uninitialized
ASoC: dapm: fix out-of-bounds accesses to DAPM lookup tables
ASoC: rsnd: fixup rsnd_ssi_master_clk_start() user count check
KVM: arm/arm64: Reset the VCPU without preemption and vcpu state loaded
arm/arm64: KVM: Allow a VCPU to fully reset itself
arm/arm64: KVM: Don't panic on failure to properly reset system registers
KVM: arm/arm64: vgic: Always initialize the group of private IRQs
KVM: arm64: Forbid kprobing of the VHE world-switch code
ASoC: samsung: Prevent clk_get_rate() calls in atomic context
ARM: OMAP2+: fix lack of timer interrupts on CPU1 after hotplug
Input: cap11xx - switch to using set_brightness_blocking()
Input: ps2-gpio - flush TX work when closing port
Input: matrix_keypad - use flush_delayed_work()
mac80211: call drv_ibss_join() on restart
mac80211: Fix Tx aggregation session tear down with ITXQs
netfilter: compat: initialize all fields in xt_init
blk-mq: insert rq with DONTPREP to hctx dispatch list when requeue
ipvs: fix dependency on nf_defrag_ipv6
floppy: check_events callback should not return a negative number
xprtrdma: Make sure Send CQ is allocated on an existing compvec
NFS: Don't use page_file_mapping after removing the page
mm/gup: fix gup_pmd_range() for dax
Revert "mm: use early_pfn_to_nid in page_ext_init"
scsi: qla2xxx: Fix panic from use after free in qla2x00_async_tm_cmd
net: dsa: bcm_sf2: potential array overflow in bcm_sf2_sw_suspend()
x86/CPU: Add Icelake model number
mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs
net: hns: Fix object reference leaks in hns_dsaf_roce_reset()
i2c: cadence: Fix the hold bit setting
i2c: bcm2835: Clear current buffer pointers and counts after a transfer
auxdisplay: ht16k33: fix potential user-after-free on module unload
Input: st-keyscan - fix potential zalloc NULL dereference
clk: sunxi-ng: v3s: Fix TCON reset de-assert bit
kallsyms: Handle too long symbols in kallsyms.c
clk: sunxi: A31: Fix wrong AHB gate number
esp: Skip TX bytes accounting when sending from a request socket
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
bpf: only adjust gso_size on bytestream protocols
bpf: fix lockdep false positive in stackmap
af_key: unconditionally clone on broadcast
ARM: 8835/1: dma-mapping: Clear DMA ops on teardown
assoc_array: Fix shortcut creation
keys: Fix dependency loop between construction record and auth key
scsi: libiscsi: Fix race between iscsi_xmit_task and iscsi_complete_task
net: systemport: Fix reception of BPDUs
net: dsa: bcm_sf2: Do not assume DSA master supports WoL
pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
qmi_wwan: apply SET_DTR quirk to Sierra WP7607
net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
xfrm: Fix inbound traffic via XFRM interfaces across network namespaces
mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue
ASoC: topology: free created components in tplg load error
qed: Fix iWARP buffer size provided for syn packet processing.
qed: Fix iWARP syn packet mac address validation.
ARM: dts: armada-xp: fix Armada XP boards NAND description
arm64: Relax GIC version check during early boot
ARM: tegra: Restore DT ABI on Tegra124 Chromebooks
net: marvell: mvneta: fix DMA debug warning
mm: handle lru_add_drain_all for UP properly
tmpfs: fix link accounting when a tmpfile is linked in
ixgbe: fix older devices that do not support IXGBE_MRQC_L3L4TXSWEN
ARCv2: lib: memcpy: fix doing prefetchw outside of buffer
ARC: uacces: remove lp_start, lp_end from clobber list
ARCv2: support manual regfile save on interrupts
ARCv2: don't assume core 0x54 has dual issue
phonet: fix building with clang
mac80211_hwsim: propagate genlmsg_reply return code
bpf, lpm: fix lookup bug in map_delete_elem
net: thunderx: make CFG_DONE message to run through generic send-ack sequence
net: thunderx: add nicvf_send_msg_to_pf result check for set_rx_mode_task
nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
nfp: bpf: fix ALU32 high bits clearance bug
bnxt_en: Fix typo in firmware message timeout logic.
bnxt_en: Wait longer for the firmware message response to complete.
net: set static variable an initial value in atl2_probe()
selftests: fib_tests: sleep after changing carrier. again.
tmpfs: fix uninitialized return value in shmem_link
stm class: Prevent division by zero
nfit: acpi_nfit_ctl(): Check out_obj->type in the right place
acpi/nfit: Fix bus command validation
nfit/ars: Attempt a short-ARS whenever the ARS state is idle at boot
nfit/ars: Attempt short-ARS even in the no_init_ars case
libnvdimm/label: Clear 'updating' flag after label-set update
libnvdimm, pfn: Fix over-trim in trim_pfn_device()
libnvdimm/pmem: Honor force_raw for legacy pmem regions
libnvdimm: Fix altmap reservation size calculation
fix cgroup_do_mount() handling of failure exits
crypto: aead - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: aegis - fix handling chunked inputs
crypto: arm/crct10dif - revert to C code for short inputs
crypto: arm64/aes-neonbs - fix returning final keystream block
crypto: arm64/crct10dif - revert to C code for short inputs
crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: morus - fix handling chunked inputs
crypto: pcbc - remove bogus memcpy()s with src == dest
crypto: skcipher - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: testmgr - skip crc32c context test for ahash algorithms
crypto: x86/aegis - fix handling chunked inputs and MAY_SLEEP
crypto: x86/aesni-gcm - fix crash on empty plaintext
crypto: x86/morus - fix handling chunked inputs and MAY_SLEEP
crypto: arm64/aes-ccm - fix logical bug in AAD MAC handling
crypto: arm64/aes-ccm - fix bugs in non-NEON fallback routine
CIFS: Do not reset lease state to NONE on lease break
CIFS: Do not skip SMB2 message IDs on send failures
CIFS: Fix read after write for files with read caching
tracing: Use strncpy instead of memcpy for string keys in hist triggers
tracing: Do not free iter->trace in fail path of tracing_open_pipe()
tracing/perf: Use strndup_user() instead of buggy open-coded version
xen: fix dom0 boot on huge systems
ACPI / device_sysfs: Avoid OF modalias creation for removed device
mmc: sdhci-esdhc-imx: fix HS400 timing issue
mmc:fix a bug when max_discard is 0
netfilter: ipt_CLUSTERIP: fix warning unused variable cn
spi: ti-qspi: Fix mmap read when more than one CS in use
spi: pxa2xx: Setup maximum supported DMA transfer length
regulator: s2mps11: Fix steps for buck7, buck8 and LDO35
regulator: max77620: Initialize values for DT properties
regulator: s2mpa01: Fix step values for some LDOs
clocksource/drivers/exynos_mct: Move one-shot check from tick clear to ISR
clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown
clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability
s390/setup: fix early warning messages
s390/virtio: handle find on invalid queue gracefully
scsi: virtio_scsi: don't send sc payload with tmfs
scsi: aacraid: Fix performance issue on logical drives
scsi: sd: Optimal I/O size should be a multiple of physical block size
scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlock
scsi: qla2xxx: Fix LUN discovery if loop id is not assigned yet by firmware
fs/devpts: always delete dcache dentry-s in dput()
splice: don't merge into linked buffers
ovl: During copy up, first copy up data and then xattrs
ovl: Do not lose security.capability xattr over metadata file copy-up
m68k: Add -ffreestanding to CFLAGS
Btrfs: setup a nofs context for memory allocation at btrfs_create_tree()
Btrfs: setup a nofs context for memory allocation at __btrfs_set_acl
btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
Btrfs: fix corruption reading shared and compressed extents after hole punching
soc: qcom: rpmh: Avoid accessing freed memory from batch API
libertas_tf: don't set URB_ZERO_PACKET on IN USB transfer
irqchip/gic-v3-its: Avoid parsing _indirect_ twice for Device table
irqchip/brcmstb-l2: Use _irqsave locking variants in non-interrupt code
x86/kprobes: Prohibit probing on optprobe template code
cpufreq: kryo: Release OPP tables on module removal
cpufreq: tegra124: add missing of_node_put()
cpufreq: pxa2xx: remove incorrect __init annotation
ext4: fix check of inode in swap_inode_boot_loader
ext4: cleanup pagecache before swap i_data
ext4: update quota information while swapping boot loader inode
ext4: add mask of ext4 flags to swap
ext4: fix crash during online resizing
PCI/ASPM: Use LTR if already enabled by platform
PCI/DPC: Fix print AER status in DPC event handling
PCI: dwc: skip MSI init if MSIs have been explicitly disabled
IB/hfi1: Close race condition on user context disable and close
cxl: Wrap iterations over afu slices inside 'afu_list_lock'
ext2: Fix underflow in ext2_max_size()
clk: uniphier: Fix update register for CPU-gear
clk: clk-twl6040: Fix imprecise external abort for pdmclk
clk: samsung: exynos5: Fix possible NULL pointer exception on platform_device_alloc() failure
clk: samsung: exynos5: Fix kfree() of const memory on setting driver_override
clk: ingenic: Fix round_rate misbehaving with non-integer dividers
clk: ingenic: Fix doc of ingenic_cgu_div_info
usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
usb: typec: tps6598x: handle block writes separately with plain-I2C adapters
dmaengine: usb-dmac: Make DMAC system sleep callbacks explicit
mm: hwpoison: fix thp split handing in soft_offline_in_use_page()
mm/vmalloc: fix size check for remap_vmalloc_range_partial()
mm/memory.c: do_fault: avoid usage of stale vm_area_struct
kernel/sysctl.c: add missing range check in do_proc_dointvec_minmax_conv
device property: Fix the length used in PROPERTY_ENTRY_STRING()
intel_th: Don't reference unassigned outputs
parport_pc: fix find_superio io compare code, should use equal test.
i2c: tegra: fix maximum transfer size
media: i2c: ov5640: Fix post-reset delay
gpio: pca953x: Fix dereference of irq data in shutdown
can: flexcan: FLEXCAN_IFLAG_MB: add () around macro argument
drm/i915: Relax mmap VMA check
bpf: only test gso type on gso packets
serial: uartps: Fix stuck ISR if RX disabled with non-empty FIFO
serial: 8250_of: assume reg-shift of 2 for mrvl,mmp-uart
serial: 8250_pci: Fix number of ports for ACCES serial cards
serial: 8250_pci: Have ACCES cards that use the four port Pericom PI7C9X7954 chip use the pci_pericom_setup()
jbd2: clear dirty flag when revoking a buffer from an older transaction
jbd2: fix compile warning when using JBUFFER_TRACE
selinux: add the missing walk_size + len check in selinux_sctp_bind_connect
security/selinux: fix SECURITY_LSM_NATIVE_LABELS on reused superblock
powerpc/32: Clear on-stack exception marker upon exception return
powerpc/wii: properly disable use of BATs when requested.
powerpc/powernv: Make opal log only readable by root
powerpc/83xx: Also save/restore SPRG4-7 during suspend
powerpc/powernv: Don't reprogram SLW image on every KVM guest entry/exit
powerpc: Fix 32-bit KVM-PR lockup and host crash with MacOS guest
powerpc/ptrace: Simplify vr_get/set() to avoid GCC warning
powerpc/hugetlb: Don't do runtime allocation of 16G pages in LPAR configuration
powerpc/traps: fix recoverability of machine check handling on book3s/32
powerpc/traps: Fix the message printed when stack overflows
ARM: s3c24xx: Fix boolean expressions in osiris_dvs_notify
arm64: Fix HCR.TGE status for NMI contexts
arm64: debug: Ensure debug handlers check triggering exception level
arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2
ipmi_si: fix use-after-free of resource->name
dm: fix to_sector() for 32bit
dm integrity: limit the rate of error messages
mfd: sm501: Fix potential NULL pointer dereference
cpcap-charger: generate events for userspace
NFS: Fix I/O request leakages
NFS: Fix an I/O request leakage in nfs_do_recoalesce
NFS: Don't recoalesce on error in nfs_pageio_complete_mirror()
nfsd: fix performance-limiting session calculation
nfsd: fix memory corruption caused by readdir
nfsd: fix wrong check in write_v4_end_grace()
NFSv4.1: Reinitialise sequence results before retransmitting a request
svcrpc: fix UDP on servers with lots of threads
PM / wakeup: Rework wakeup source timer cancellation
bcache: never writeback a discard operation
stable-kernel-rules.rst: add link to networking patch queue
vt: perform safe console erase in the right order
x86/unwind/orc: Fix ORC unwind table alignment
perf intel-pt: Fix CYC timestamp calculation after OVF
perf tools: Fix split_kallsyms_for_kcore() for trampoline symbols
perf auxtrace: Define auxtrace record alignment
perf intel-pt: Fix overlap calculation for padding
perf/x86/intel/uncore: Fix client IMC events return huge result
perf intel-pt: Fix divide by zero when TSC is not available
md: Fix failed allocation of md_register_thread
tpm/tpm_crb: Avoid unaligned reads in crb_recv()
tpm: Unify the send callback behaviour
rcu: Do RCU GP kthread self-wakeup from softirq and interrupt
media: imx: prpencvf: Stop upstream before disabling IDMA channel
media: lgdt330x: fix lock status reporting
media: uvcvideo: Avoid NULL pointer dereference at the end of streaming
media: vimc: Add vimc-streamer for stream control
media: imx: csi: Disable CSI immediately after last EOF
media: imx: csi: Stop upstream before disabling IDMA channel
drm/fb-helper: generic: Fix drm_fbdev_client_restore()
drm/radeon/evergreen_cs: fix missing break in switch statement
drm/amd/powerplay: correct power reading on fiji
drm/amd/display: don't call dm_pp_ function from an fpu block
KVM: Call kvm_arch_memslots_updated() before updating memslots
KVM: x86/mmu: Detect MMIO generation wrap in any address space
KVM: x86/mmu: Do not cache MMIO accesses while memslots are in flux
KVM: nVMX: Sign extend displacements of VMX instr's mem operands
KVM: nVMX: Apply addr size mask to effective address for VMX instructions
KVM: nVMX: Ignore limit checks on VMX instructions using flat segments
bcache: use (REQ_META|REQ_PRIO) to indicate bio for metadata
s390/setup: fix boot crash for machine without EDAT-1
Linux 4.19.31
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
We need to add the object tree include directory to the include path
for building mdp in order to pick up generated/autoconf.h. Otherwise,
make O=/path/to/objtree breaks.
Fixes: e37c1877ba ("scripts/selinux: modernize mdp")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
When compiling genheaders and mdp from a newer host kernel, the
following error happens:
In file included from scripts/selinux/genheaders/genheaders.c:18:
./security/selinux/include/classmap.h:238:2: error: #error New
address family defined, please update secclass_map. #error New
address family defined, please update secclass_map. ^~~~~
make[3]: *** [scripts/Makefile.host:107:
scripts/selinux/genheaders/genheaders] Error 1 make[2]: ***
[scripts/Makefile.build:599: scripts/selinux/genheaders] Error 2
make[1]: *** [scripts/Makefile.build:599: scripts/selinux] Error 2
make[1]: *** Waiting for unfinished jobs....
Instead of relying on the host definition, include linux/socket.h in
classmap.h to have PF_MAX.
Signed-off-by: Paulo Alcantara <paulo@paulo.ac>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: manually merge in mdp.c, subject line tweaks]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Derived in part from a patch by Dominick Grift.
The MDP example no longer works on modern systems. Fix it.
While we are at it, add MLS support and enable it.
NB This still does not work on systems using dbus-daemon instead of
dbus-broker because dbus-daemon does not yet gracefully handle unknown
classes/permissions. This appears to be a deficiency in libselinux's
selinux_set_mapping() interface and underlying implementation,
which was never fully updated to deal with unknown classes/permissions
unlike the kernel. The same problem also occurs with XSELinux.
Programs that instead use selinux_check_access() like dbus-broker
should not have this problem.
Changes to mdp:
Add support for devtmpfs, required by modern Linux distributions.
Add MLS support, with sample sensitivities, categories, and constraints.
Generate fs_use and genfscon rules based on kernel configuration.
Update list of filesystem types for fs_use and genfscon rules.
Use object_r for object contexts.
Changes to install_policy.sh:
Bail immediately on any errors.
Provide more helpful error messages when unable to find userspace tools.
Refuse to run if SELinux is already enabled.
Unconditionally move aside /etc/selinux/config and create a new one.
Build policy with -U allow so that userspace object managers do not break.
Build policy with MLS enabled by default.
Create seusers, failsafe_context, and default_contexts for use by
pam_selinux / libselinux.
Create x_contexts for the SELinux X extension.
Create virtual_domain_context and virtual_image_context for libvirtd.
Set to permissive mode rather than enforcing to permit initial autorelabel.
Update the list of filesystem types to be relabeled.
Write -F to /.autorelabel to cause a forced autorelabel on reboot.
Drop broken attempt to relabel the /dev mountpoint directory.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Dominick Grift <dominick.grift@defensec.nl>
Signed-off-by: Paul Moore <paul@paul-moore.com>
When this .gitignore was added, lxdialog was an independent hostprogs-y.
Now that all objects in lxdialog/ are directly linked to mconf, the
lxdialog is no longer generated.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, every arch/*/include/uapi/asm/Kbuild explicitly includes
the common Kbuild.asm file. Factor out the duplicated include directives
to scripts/Makefile.asm-generic so that no architecture would opt out
of the mandatory-y mechanism.
um is not forced to include mandatory-y since it is a very exceptional
case which does not support UAPI.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The generic-y is redundant under the following condition:
- arch has its own implementation
- the same header is added to generated-y
- the same header is added to mandatory-y
If a redundant generic-y is found, the warning like follows is displayed:
scripts/Makefile.asm-generic:20: redundant generic-y found in arch/arm/include/asm/Kbuild: timex.h
I fixed up arch Kbuild files found by this.
Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* The man page for dpkg-source(1) notes:
> -b, --build directory [format-specific-parameters]
> Build a source package (--build since dpkg 1.17.14).
> <...>
>
> dpkg-source will build the source package with the first
> format found in this ordered list: the format indicated
> with the --format command line option, the format
> indicated in debian/source/format, “1.0”. The fallback
> to “1.0” is deprecated and will be removed at some point
> in the future, you should always document the desired
> source format in debian/source/format. See section
> SOURCE PACKAGE FORMATS for an extensive description of
> the various source package formats.
Thus it would be more foolproof to explicitly use 1.0 (as we always
did) than to rely on dpkg-source's defaults.
* In a similar vein, debian/rules is not made executable by mkdebian,
and dpkg-source warns about that but still silently fixes the file.
Let's be explicit once again.
Signed-off-by: Arseny Maslennikov <ar@cs.msu.ru>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The of_find_device_by_node() takes a reference to the underlying device
structure, we should release that reference.
The implementation of this semantic code search is:
In a function, for a local variable returned by calling
of_find_device_by_node(),
a, if it is released by a function such as
put_device()/of_dev_put()/platform_device_put() after the last use,
it is considered that there is no reference leak;
b, if it is passed back to the caller via
dev_get_drvdata()/platform_get_drvdata()/get_device(), etc., the
reference will be released in other functions, and the current function
also considers that there is no reference leak;
c, for the rest of the situation, the current function should release the
reference by calling put_device, this code search will report the
corresponding error message.
By using this semantic code search, we have found some object reference leaks,
such as:
commit 11907e9d35 ("ASoC: fsl-asoc-card: fix object reference leaks in
fsl_asoc_card_probe")
commit a12085d139 ("mtd: rawnand: atmel: fix possible object reference leak")
commit 11493f2685 ("mtd: rawnand: jz4780: fix possible object reference leak")
There are still dozens of reference leaks in the current kernel code.
Further, for the case of b, the object returned to other functions may also
have a reference leak, we will continue to develop other cocci scripts to
further check the reference leak.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Markus Elfring <Markus.Elfring@web.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
