Prior to commit 1538d82f46 ("i2c: mpc: Interrupt driven transfer") the
old interrupt handler would reread MPC_I2C_SR after checking the CSR_MIF
bit. When the driver was re-written this was removed as it seemed
unnecessary. However as it turns out this is necessary for i2c devices
which do clock stretching otherwise we end up thinking the bus is still
busy when processing the interrupt.
Fixes: 1538d82f46 ("i2c: mpc: Interrupt driven transfer")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Expose the PEC calculation i2c_smbus_pec() for generic use.
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Acked-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This doc helps Linux users navigate through I2C sysfs and learn
the system I2C topology.
Signed-off-by: Alex Qiu <xqiu@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
If an i2c client receives an interrupt during reboot or shutdown it may
be too late to service it by making an i2c transaction on the bus
because the i2c controller has already been shutdown. This can lead to
system hangs if the i2c controller tries to make a transfer that is
doomed to fail because the access to the i2c pins is already shut down,
or an iommu translation has been torn down so i2c controller register
access doesn't work.
Let's simply disable the irq if there isn't a shutdown callback for an
i2c client when there is an irq associated with the device. This will
make sure that irqs don't come in later than the time that we can handle
it. We don't do this if the i2c client device already has a shutdown
callback because presumably they're doing the right thing and quieting
the device so irqs don't come in after the shutdown callback returns.
Reported-by: kernel test robot <lkp@intel.com>
[swboyd@chromium.org: Dropped newline, added commit text, added
interrupt.h for robot build error]
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Add a DT binding documentation for the MT8195 soc.
Signed-off-by: Kewei.Xu <kewei.xu@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fix the following warnings reported by checkpatch::
drivers/i2c/busses/i2c-imx.c:173: WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
drivers/i2c/busses/i2c-imx.c:175: WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
drivers/i2c/busses/i2c-imx.c:176: WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
drivers/i2c/busses/i2c-imx.c:177: WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
drivers/i2c/busses/i2c-imx.c:455: WARNING: Unnecessary ftrace-like logging - prefer using ftrace
drivers/i2c/busses/i2c-imx.c:602: WARNING: Unnecessary ftrace-like logging - prefer using ftrace
drivers/i2c/busses/i2c-imx.c:638: WARNING: Unnecessary ftrace-like logging - prefer using ftrace
drivers/i2c/busses/i2c-imx.c:1170: WARNING: Unnecessary ftrace-like logging - prefer using ftrace
drivers/i2c/busses/i2c-imx.c:1374: WARNING: Unnecessary ftrace-like logging - prefer using ftrace
drivers/i2c/busses/i2c-imx.c:1398: WARNING: Prefer strscpy over strlcpy - see: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Kwon Tae-young <tykwon@m2i.co.kr>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and the error value gets printed.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and the error value gets printed.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and the error value gets printed.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
On Xilinx zynq SOC if the delay between address register write and
control register write in cdns_mrecv function is more, the xfer size
register rolls over and controller is stuck. This is an IP bug and
is resolved in later versions of IP.
To avoid this scenario, disable the interrupts on the current processor
core between the two register writes and enable them later. This can
help achieve the timing constraint.
Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The TI part is equivalent to the NXP part, and its compatible value is
not documented in the DT bindings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
i801_setup_hstcfg() leaves the bits in priv->original_hstcfg that
we're interested in intact. Therefore we can remove the return value
from the function and use priv->original_hstcfg directly.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
We are the driver, so we can use the driver name directly instead of
retrieving it by calling dev_driver_string().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Why shall we bother to open-code something that the compiler can do for us.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Polling uses the same timeout as irq mode: 400 * 500us = 200ms = HZ / 5.
So let's use the adapter->timeout value also for polling. This has the
advantage that userspace can control the timeout value for polling as
well. In addition change the code to make it better readable.
Last but not least remove the timeout debug messages. Calls to both
functions are followed by a call to i801_check_post() that will print
an error message in case of timeout.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The driver is run on the platforms where OF node is always NULL.
The confusion comes from IRQ domain APIs that take either OF or
firmware node as input parameter. Since fwnode is not used here
either, replace of_node by NULL.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
RZ/G2L i2c controller is compatible with RZ/A i2c controller.
By default IP is in reset state, so need to perform release
reset before accessing any register.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Convert the Renesas R-Mobile I2C Bus Interface (IIC) Device Tree binding
documentation to json-schema.
Document missing properties.
R-Mobile A1 and SH-Mobile have multiple interrupts.
Update the example to match reality.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
According to the Hardware User's Manual, automatic transmission for PMIC
control (DVFS) is not available on the R-Car E3 and RZ/G2E SoC.
Experiments showed this really means that support for automatic DVFS is
not present, while the IIC automatic transmission feature itself is
still available, albeit not super useful.
Hence there is no longer a reason not to declare compatibility with the
R-Car Gen3-specific and generic versions, and the corresponding
paragraph can be dropped.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The "reset-active-low" property was removed from the ssd1307fb bindings
in commit 519b4dba58 ("fbdev: ssd1307fb: Remove reset-active-low
from the DT binding document") and from the ssd1307fb binding examples
in commit 7d7e58d30e ("dt-bindings: display: ssd1307fb: Remove
reset-active-low from examples").
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Convert i2c-omap.txt to YAML schema for better checks and documentation.
Following properties were used in DT but were not documented in txt
bindings and has been included in YAML schema:
1. Include ti,am4372-i2c compatible
2. Document clocks property
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The people on linux-renesas-soc are interested in changes to the Renesas
I2C drivers and their DT bindings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Add vbus-supply which provides power to SCL/SDA. Pass this regulator
into core so it can be turned on/off for low power mode support.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Add vbus-supply property for mt65xx. The regulator can be passed into
core and turned off during suspend/sleep to reduce power consumption.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Although in the most platforms, the bus power of i2c
are alway on, some platforms disable the i2c bus power
in order to meet low power request.
We can control bulk regulator if it is provided in i2c
adapter device.
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
One may notice that dev_printk(KERN_DEBUG ...) is *not* an equivalent
to dev_dbg(). It will be printed whenever loglevel is high enough.
And currently it will be the only message in the I²C core in some
configurations that got printed under above conditions.
Moving to dev_dbg() will hide it in the configurations where Dynamic Debug
is enabled and hence align with all other debug messages in the I²C core..
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Convert the Renesas RZ/A I2C Bus Interface (RIIC) Device Tree binding
documentation to json-schema.
Document missing properties.
Update the example to match reality.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Convert the Renesas EMMA Mobile EV2 IIC Interface (IIC) Device Tree
binding documentation to json-schema.
Document missing properties.
Update the example to match reality.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Convert the Renesas R-Car I2C Controller Device Tree binding
documentation to json-schema.
Document missing properties.
Make the clocks property required.
DMA is supported on R-Car Gen3 and RZ/G2 only.
Update the example to match reality.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The compatible value "renesas,i2c-rcar" was deprecated in commit
ad4a8dc3fe ("i2c: rcar: Add per-Generation fallback bindings"),
and never had any users in upstream Linux. Drop its description from
the DT bindings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The compatible value "renesas,i2c-rcar" was deprecated in commit
ad4a8dc3fe ("i2c: rcar: Add per-Generation fallback bindings"),
and never had any users in upstream Linux. Drop its match entry from
the driver.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Rename i2c irq name with dev_name() which can provide unique
naming in /proc/interrupts for each instance of the I2C IP core.
Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Layout of these registers is part of the PCI standard. Therefore use
the constants defined by the PCI subsystem.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Using the completion API is more intuitive and it allows to simplify
the code. Note that we don't have to set priv->status = 0 any longer
with the completion API.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
When passing -ETIMEDOUT to i801_check_post() it will emit a timeout
error message. I don't see much benefit in an additional warning
stating more or less the same.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The ast25xx and ast26xx have, respectively, two and three configurable
slave device addresses to the ast24xx's one. We only support using
one at a time, but the others may come up in an indeterminate state
depending on hardware/bootloader behavior, so we need to make sure we
disable them so as to avoid ending up with phantom devices on the bus.
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Add support for the SMBus-Alert protocol to the STM32F7 that has
dedicated control and status logic.
If SMBus-Alert is used, the SMBALERT# pin must be configured as alternate
function for I2C Alert.
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Since SMBus-Alert is an optional feature of SMBUS which
requires an additional pin, the smbus binding cannot be
used to indicate its support.
Add an additional smbus-alert binding specific for it and
update the description text of smbus to avoid mentioning
SMBus-Alert
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
SM8250 CCI is the same as SDM845, add an equivalent compatible for SM8250.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
add "rockchip,rk3568-i2c", "rockchip,rk3399-i2c" for i2c nodes on
a rk3568 platform to i2c-rk3x.yaml.
Signed-off-by: Liang Chen <cl@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
- Do not check the LBR_TOS MSR when setting up unrelated LBR MSRs as this
can cause malfunction when TOS is not supported.
- Allocate the LBR XSAVE buffers along with the DS buffers upfront because
allocating them when adding an event can deadlock.
-----BEGIN PGP SIGNATURE-----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=7WGT
-----END PGP SIGNATURE-----
Merge tag 'perf-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"Two perf fixes:
- Do not check the LBR_TOS MSR when setting up unrelated LBR MSRs as
this can cause malfunction when TOS is not supported
- Allocate the LBR XSAVE buffers along with the DS buffers upfront
because allocating them when adding an event can deadlock"
* tag 'perf-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/lbr: Remove cpuc->lbr_xsave allocation from atomic context
perf/x86: Avoid touching LBR_TOS MSR for Arch LBR
- Invoke the lockdep tracepoints in the correct place so the ordering
is correct again.
- Don't leave the mutex WAITER bit stale when the last waiter is dropping
out early due to a signal as that forces all subsequent lock operations
needlessly into the slowpath until it's cleaned up again.
-----BEGIN PGP SIGNATURE-----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=7vqW
-----END PGP SIGNATURE-----
Merge tag 'locking-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
"Two locking fixes:
- Invoke the lockdep tracepoints in the correct place so the ordering
is correct again
- Don't leave the mutex WAITER bit stale when the last waiter is
dropping out early due to a signal as that forces all subsequent
lock operations needlessly into the slowpath until it's cleaned up
again"
* tag 'locking-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal
locking/lockdep: Correct calling tracepoints
- Allocate interrupt descriptors correctly on Mainstone PXA when
SPARSE_IRQ is enabled; otherwise the interrupt association fails.
- Make the APPLE AIC chip driver depend on APPLE.
- Remove redundant error output on devm_ioremap_resource() failure.
-----BEGIN PGP SIGNATURE-----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=XjHi
-----END PGP SIGNATURE-----
Merge tag 'irq-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A few fixes for irqchip drivers:
- Allocate interrupt descriptors correctly on Mainstone PXA when
SPARSE_IRQ is enabled; otherwise the interrupt association fails
- Make the APPLE AIC chip driver depend on APPLE
- Remove redundant error output on devm_ioremap_resource() failure"
* tag 'irq-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: Remove redundant error printing
irqchip/apple-aic: APPLE_AIC should depend on ARCH_APPLE
ARM: PXA: Fix cplds irqdesc allocation when using legacy mode
of killing the machine and by using the accessors with the exact functionality
needed when accessing memory.
- Fix a confusion with Clang LTO compiler switches passed to the it
- Handle the case gracefully when VMGEXIT has been executed in userspace
-----BEGIN PGP SIGNATURE-----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=51BK
-----END PGP SIGNATURE-----
Merge tag 'x86_urgent_for_v5.13_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix how SEV handles MMIO accesses by forwarding potential page faults
instead of killing the machine and by using the accessors with the
exact functionality needed when accessing memory.
- Fix a confusion with Clang LTO compiler switches passed to the it
- Handle the case gracefully when VMGEXIT has been executed in
userspace
* tag 'x86_urgent_for_v5.13_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev-es: Use __put_user()/__get_user() for data accesses
x86/sev-es: Forward page-faults which happen during emulation
x86/sev-es: Don't return NULL from sev_es_get_ghcb()
x86/build: Fix location of '-plugin-opt=' flags
x86/sev-es: Invalidate the GHCB after completing VMGEXIT
x86/sev-es: Move sev_es_put_ghcb() in prep for follow on patch
Fix breakage of strace (and other ptracers etc.) when using the new scv ABI (Power9 or
later with glibc >= 2.33).
Fix early_ioremap() on 64-bit, which broke booting on some machines.
Thanks to: Dmitry V. Levin, Nicholas Piggin, Alexey Kardashevskiy, Christophe Leroy.
-----BEGIN PGP SIGNATURE-----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=qeQq
-----END PGP SIGNATURE-----
Merge tag 'powerpc-5.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix breakage of strace (and other ptracers etc.) when using the new
scv ABI (Power9 or later with glibc >= 2.33).
- Fix early_ioremap() on 64-bit, which broke booting on some machines.
Thanks to Dmitry V. Levin, Nicholas Piggin, Alexey Kardashevskiy, and
Christophe Leroy.
* tag 'powerpc-5.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s/syscall: Fix ptrace syscall info with scv syscalls
powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls
powerpc: Fix early setup to make early_ioremap() work
Merge misc fixes from Andrew Morton:
"10 patches.
Subsystems affected by this patch series: mm (pagealloc, gup, kasan,
and userfaultfd), ipc, selftests, watchdog, bitmap, procfs, and lib"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
userfaultfd: hugetlbfs: fix new flag usage in error path
lib: kunit: suppress a compilation warning of frame size
proc: remove Alexey from MAINTAINERS
linux/bits.h: fix compilation error with GENMASK
watchdog: reliable handling of timestamps
kasan: slab: always reset the tag in get_freepointer_safe()
tools/testing/selftests/exec: fix link error
ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
Revert "mm/gup: check page posion status for coredump."
mm/shuffle: fix section mismatch warning
In commit d6995da311 ("hugetlb: use page.private for hugetlb specific
page flags") the use of PagePrivate to indicate a reservation count
should be restored at free time was changed to the hugetlb specific flag
HPageRestoreReserve. Changes to a userfaultfd error path as well as a
VM_BUG_ON() in remove_inode_hugepages() were overlooked.
Users could see incorrect hugetlb reserve counts if they experience an
error with a UFFDIO_COPY operation. Specifically, this would be the
result of an unlikely copy_huge_page_from_user error. There is not an
increased chance of hitting the VM_BUG_ON.
Link: https://lkml.kernel.org/r/20210521233952.236434-1-mike.kravetz@oracle.com
Fixes: d6995da311 ("hugetlb: use page.private for hugetlb specific page flags")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Mina Almasry <almasry.mina@google.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
