Commit 704d3d60fe ("drm/etnaviv: don't block scheduler when GPU is still
active") ensured that active jobs are returned to the pending list when
extending the timeout. However, it didn't use the pending list's lock to
manipulate the list, which causes a race condition as the scheduler's
workqueues are running.
Hold the lock while manipulating the scheduler's pending list to prevent
a race.
Cc: stable@vger.kernel.org
Fixes: 704d3d60fe ("drm/etnaviv: don't block scheduler when GPU is still active")
Reported-by: Philipp Stanner <phasta@kernel.org>
Closes: https://lore.kernel.org/dri-devel/964e59ba1539083ef29b06d3c78f5e2e9b138ab8.camel@mailbox.org/
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Link: https://lore.kernel.org/r/20250602132240.93314-1-mcanal@igalia.com
Signed-off-by: Maíra Canal <mcanal@igalia.com>
GSP message queue docs has been moved following RPC handling split in
commit 8a8b1ec526 ("drm/nouveau/gsp: split rpc handling out on its
own"), before GSP-RM implementation is versioned in commit c472d82834
("drm/nouveau/gsp: move subdev/engine impls to subdev/gsp/rm/r535/").
However, the kernel-doc reference in nouveau docs is left behind, which
triggers htmldocs warnings:
ERROR: Cannot find file ./drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
WARNING: No kernel-doc for file ./drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
Update the reference.
Fixes: c472d82834 ("drm/nouveau/gsp: move subdev/engine impls to subdev/gsp/rm/r535/")
Fixes: 8a8b1ec526 ("drm/nouveau/gsp: split rpc handling out on its own")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20250611020805.22418-2-bagasdotme@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The nouveau_get_backlight_name() function generates a unique name for the
backlight interface, appending an id from 1 to 99 for all backlight devices
after the first.
GCC 15 (and likely other compilers) produce the following
-Wformat-truncation warning:
nouveau_backlight.c: In function ‘nouveau_backlight_init’:
nouveau_backlight.c:56:69: error: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 3 [-Werror=format-truncation=]
56 | snprintf(backlight_name, BL_NAME_SIZE, "nv_backlight%d", nb);
| ^~
In function ‘nouveau_get_backlight_name’,
inlined from ‘nouveau_backlight_init’ at nouveau_backlight.c:351:7:
nouveau_backlight.c:56:56: note: directive argument in the range [1, 2147483647]
56 | snprintf(backlight_name, BL_NAME_SIZE, "nv_backlight%d", nb);
| ^~~~~~~~~~~~~~~~
nouveau_backlight.c:56:17: note: ‘snprintf’ output between 14 and 23 bytes into a destination of size 15
56 | snprintf(backlight_name, BL_NAME_SIZE, "nv_backlight%d", nb);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The warning started appearing after commit ab244be47a ("drm/nouveau:
Fix a potential theorical leak in nouveau_get_backlight_name()") This fix
for the ida usage removed the explicit value check for ids larger than 99.
The compiler is unable to intuit that the ida_alloc_max() limits the
returned value range between 0 and 99.
Because the compiler can no longer infer that the number ranges from 0 to
99, it thinks that it could use as many as 11 digits (10 + the potential -
sign for negative numbers).
The warning has gone unfixed for some time, with at least one kernel test
robot report. The code breaks W=1 builds, which is especially frustrating
with the introduction of CONFIG_WERROR.
The string is stored temporarily on the stack and then copied into the
device name. Its not a big deal to use 11 more bytes of stack rounding out
to an even 24 bytes. Increase BL_NAME_SIZE to 24 to avoid the truncation
warning. This fixes the W=1 builds that include this driver.
Compile tested only.
Fixes: ab244be47a ("drm/nouveau: Fix a potential theorical leak in nouveau_get_backlight_name()")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312050324.0kv4PnfZ-lkp@intel.com/
Suggested-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20250610-jk-nouveua-drm-bl-snprintf-fix-v2-1-7fdd4b84b48e@intel.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The RPC container is released after being passed to r535_gsp_rpc_send().
When sending the initial fragment of a large RPC and passing the
caller's RPC container, the container will be freed prematurely. Subsequent
attempts to send remaining fragments will therefore result in a
use-after-free.
Allocate a temporary RPC container for holding the initial fragment of a
large RPC when sending. Free the caller's container when all fragments
are successfully sent.
Fixes: 176fdcbddf ("drm/nouveau/gsp/r535: add support for booting GSP-RM")
Signed-off-by: Zhi Wang <zhiw@nvidia.com>
Link: https://lore.kernel.org/r/20250527163712.3444-1-zhiw@nvidia.com
[ Rebase onto Blackwell changes. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The left shift int 32 bit integer constants 1 is evaluated using 32 bit
arithmetic and then assigned to a 64 bit unsigned integer. In the case
where the shift is 32 or more this can lead to an overflow. Avoid this
by shifting using the BIT_ULL macro instead.
Fixes: 6c3ac7bcfc ("drm/nouveau/gsp: support deeper page tables in COPY_SERVER_RESERVED_PDES")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250522131512.2768310-1-colin.i.king@gmail.com
Fix the compile-time warning
drivers/gpu/drm/mgag200/mgag200_ddc.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250612085308.203861-1-tzimmermann@suse.de
Fix the compile-time warning
drivers/gpu/drm/ast/ast_mode.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250612084257.200907-1-tzimmermann@suse.de
When checking for unsupported expect an error is printed every time.
This spams the log for platforms where this is expected, e.g. ls1028a
having a Vivante (etnaviv) GPU and Mali display processor.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://lore.kernel.org/r/20250523064042.3275926-1-alexander.stein@ew.tq-group.com
The number of columns relates to the width, not the height. Use the
correct variable.
Signed-off-by: John Keeping <jkeeping@inmusicbrands.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Fixes: fdd591e00a ("drm/ssd130x: Add support for the SSD132x OLED controller family")
Link: https://lore.kernel.org/r/20250611111307.1814876-1-jkeeping@inmusicbrands.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Use common wrappers operating directly on the struct sg_table objects to
fix incorrect use of scatterlists sync calls. dma_sync_sg_for_*()
functions have to be called with the number of elements originally passed
to dma_map_sg_*() function, not the one returned in sgtable's nents.
Fixes: 1ffe095901 ("udmabuf: fix dma-buf cpu access")
CC: stable@vger.kernel.org
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250507160913.2084079-3-m.szyprowski@samsung.com
Smatch pointed out this trivial typo:
drivers/dma-buf/dma-buf.c:1123 dma_buf_map_attachment()
warn: passing positive error code '16' to 'ERR_PTR'
drivers/dma-buf/dma-buf.c
1113 dma_resv_assert_held(attach->dmabuf->resv);
1114
1115 if (dma_buf_pin_on_map(attach)) {
1116 ret = attach->dmabuf->ops->pin(attach);
1117 /*
1118 * Catch exporters making buffers inaccessible even when
1119 * attachments preventing that exist.
1120 */
1121 WARN_ON_ONCE(ret == EBUSY);
^^^^^
This was probably intended to be -EBUSY?
1122 if (ret)
--> 1123 return ERR_PTR(ret);
^^^
Otherwise we will eventually crash.
1124 }
1125
1126 sg_table = attach->dmabuf->ops->map_dma_buf(attach, direction);
1127 if (!sg_table)
1128 sg_table = ERR_PTR(-ENOMEM);
1129 if (IS_ERR(sg_table))
1130 goto error_unpin;
1131
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://lore.kernel.org/r/20250605085336.62156-1-christian.koenig@amd.com
This driver requires of_get_display_timing() from
CONFIG_VIDEOMODE_HELPERS but does not select it. If no other driver
selects it, there will be a failure from the linker if the driver is
built in or modpost if it is a module.
ERROR: modpost: "of_get_display_timing" [drivers/gpu/drm/sitronix/st7571-i2c.ko] undefined!
Select CONFIG_VIDEOMODE_HELPERS to resolve the build failure.
Fixes: 4b35f0f41e ("drm/st7571-i2c: add support for Sitronix ST7571 LCD controller")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250610-drm-st7571-i2c-select-videomode-helpers-v1-1-d30b50ff6e64@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Commit 1017560164 ("drm/meson: use unsigned long long / Hz for
frequency types") attempts to resolve video playback using 59.94Hz.
using YUV420 by changing the clock calculation to use
Hz instead of kHz (thus yielding more precision).
The basic calculation itself is correct, however the comparisions in
meson_vclk_vic_supported_freq() and meson_vclk_setup() don't work
anymore for 59.94Hz modes (using the freq * 1000 / 1001 logic). For
example, drm/edid specifies a 593407kHz clock for 3840x2160@59.94Hz.
With the mentioend commit we convert this to Hz. Then meson_vclk
tries to find a matchig "params" entry (as the clock setup code
currently only supports specific frequencies) by taking the venc_freq
from the params and calculating the "alt frequency" (used for the
59.94Hz modes) from it, which is:
(594000000Hz * 1000) / 1001 = 593406593Hz
Similar calculation is applied to the phy_freq (TMDS clock), which is 10
times the pixel clock.
Implement a new meson_vclk_freqs_are_matching_param() function whose
purpose is to compare if the requested and calculated frequencies. They
may not match exactly (for the reasons mentioned above). Allow the
clocks to deviate slightly to make the 59.94Hz modes again.
Fixes: 1017560164 ("drm/meson: use unsigned long long / Hz for frequency types")
Reported-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250609202751.962208-1-martin.blumenstingl@googlemail.com
meson_vclk_vic_supported_freq() has a debug print which includes the
pixel freq. However, within the whole function the pixel freq is
irrelevant, other than checking the end of the params array. Switch to
printing the vclk_freq which is being compared / matched against the
inputs to the function to avoid confusion when analyzing error reports
from users.
Fixes: e5fab2ec9c ("drm/meson: vclk: add support for YUV420 setup")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250606221031.3419353-1-martin.blumenstingl@googlemail.com
The "phy" and "vclk" frequency labels were swapped, making it more
difficult to debug driver errors. Swap the label order to make them
match with the actual frequencies printed to correct this.
Fixes: e5fab2ec9c ("drm/meson: vclk: add support for YUV420 setup")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250606203729.3311592-1-martin.blumenstingl@googlemail.com
The incorrect PSP firmware size is used for initializing. It may
cause error for newer version firmware.
Fixes: 8c9ff1b181 ("accel/amdxdna: Add a new driver for AMD AI Engine")
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://lore.kernel.org/r/20250604143217.1386272-1-lizhi.hou@amd.com
The renaming to the timer_*() namespace was delayed due massive conflicts
against Linux-next. Now that everything is upstream finish the conversion.
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Merge tag 'timers-cleanups-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer cleanup from Thomas Gleixner:
"The delayed from_timer() API cleanup:
The renaming to the timer_*() namespace was delayed due massive
conflicts against Linux-next. Now that everything is upstream finish
the conversion"
* tag 'timers-cleanups-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
treewide, timers: Rename from_timer() to timer_container_of()
- Cure IO bitmap inconsistencies
A failed fork cleans up all resources of the newly created thread via
exit_thread(). exit_thread() invokes io_bitmap_exit() which does the IO
bitmap cleanups, which unfortunately assume that the cleanup is related
to the current task, which is obviously bogus. Make it work correctly
- A lockdep fix in the resctrl code removed the clearing of the command
buffer in two places, which keeps stale error messages around. Bring
them back.
- Remove unused trace events
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Merge tag 'x86-urgent-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of x86 fixes:
- Cure IO bitmap inconsistencies
A failed fork cleans up all resources of the newly created thread
via exit_thread(). exit_thread() invokes io_bitmap_exit() which
does the IO bitmap cleanups, which unfortunately assume that the
cleanup is related to the current task, which is obviously bogus.
Make it work correctly
- A lockdep fix in the resctrl code removed the clearing of the
command buffer in two places, which keeps stale error messages
around. Bring them back.
- Remove unused trace events"
* tag 'x86-urgent-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
fs/resctrl: Restore the rdt_last_cmd_clear() calls after acquiring rdtgroup_mutex
x86/iopl: Cure TIF_IO_BITMAP inconsistencies
x86/fpu: Remove unused trace events
Add initial DMR support, which required smarter RAPL probe
Fix AMD MSR RAPL energy reporting
Add RAPL power limit configuration output
Minor fixes
Signed-off-by: Len Brown <len.brown@intel.com>
For the RAPL package energy status counter, Intel and AMD share the same
perf_subsys and perf_name, but with different MSR addresses.
Both rapl_counter_arch_infos[0] and rapl_counter_arch_infos[1] are
introduced to describe this counter for different Vendors.
As a result, the perf counter is probed twice, and causes a failure in
in get_rapl_counters() because expected_read_size and actual_read_size
don't match.
Fix the problem by skipping the already probed counter.
Note, this is not a perfect fix. For example, if different
vendors/platforms use the same MSR value for different purpose, the code
can be fooled when it probes a rapl_counter_arch_infos[] entry that does
not belong to the running Vendor/Platform.
In a long run, better to put rapl_counter_arch_infos[] into the
platform_features so that this becomes Vendor/Platform specific.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
platform_features->rapl_msrs describes the RAPL MSRs supported. While
RAPL Perf counters can be exposed from different kernel backend drivers,
e.g. RAPL MSR I/F driver, or RAPL TPMI I/F driver.
Thus, turbostat should first blindly probe all the available RAPL Perf
counters, and falls back to the RAPL MSR counters if they are listed in
platform_features->rapl_msrs.
With this, platforms that don't have RAPL MSRs can clear the
platform_features->rapl_msrs bits and use RAPL Perf counters only.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Increase the code readability by moving the no_perf/no_msr flag and the
cai->perf_name/cai->msr sanity checks into the counter probe functions.
No functional change.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
probe_rapl_msr() is reused for probing RAPL MSR counters, cstate MSR
counters and MPERF/APERF/SMI MSR counters, thus its name is misleading.
Similar to add_perf_counter(), introduce add_msr_counter() to probe a
counter via MSR. Introduce wrapper function add_rapl_msr_counter() at
the same time to add extra check for Zero return value for specified
RAPL counters.
No functional change intended.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
As the only caller of add_msr_perf_counter_(), add_msr_perf_counter()
just gives extra debug output on top. There is no need to keep both
functions.
Remove add_msr_perf_counter_() and move all the logic to
add_msr_perf_counter().
No functional change.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
As the only caller of add_cstate_perf_counter_(),
add_cstate_perf_counter() just gives extra debug output on top. There is
no need to keep both functions.
Remove add_cstate_perf_counter_() and move all the logic to
add_cstate_perf_counter().
No functional change.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
As the only caller of add_rapl_perf_counter_(), add_rapl_perf_counter()
just gives extra debug output on top. There is no need to keep both
functions.
Remove add_rapl_perf_counter_() and move all the logic to
add_rapl_perf_counter().
No functional change.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Quit early for unsupported RAPL counters.
No functional change.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
rapl_joules bit should always be checked even if
platform_features->rapl_msrs is not set or no_msr flag is used.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
commit 05a2f07db8 ("tools/power turbostat: read RAPL counters via
perf") that adds support to read RAPL counters via perf defines the
notion of a RAPL domain_id which is set to physical_core_id on
platforms which support per_core_rapl counters (Eg: AMD processors
Family 17h onwards) and is set to the physical_package_id on all the
other platforms.
However, the physical_core_id is only unique within a package and on
platforms with multiple packages more than one core can have the same
physical_core_id and thus the same domain_id. (For eg, the first cores
of each package have the physical_core_id = 0). This results in all
these cores with the same physical_core_id using the same entry in the
rapl_counter_info_perdomain[]. Since rapl_perf_init() skips the
perf-initialization for cores whose domain_ids have already been
visited, cores that have the same physical_core_id always read the
perf file corresponding to the physical_core_id of the first package
and thus the package-energy is incorrectly reported to be the same
value for different packages.
Note: This issue only arises when RAPL counters are read via perf and
not when they are read via MSRs since in the latter case the MSRs are
read separately on each core.
Fix this issue by associating each CPU with rapl_core_id which is
unique across all the packages in the system.
Fixes: 05a2f07db8 ("tools/power turbostat: read RAPL counters via perf")
Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fix typo in the currently unused RAPL_GFX_ALL macro definition.
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
It uses /dev/msrN device paths on Android instead of /dev/cpu/N/msr,
updates error messages and permission checks to reflect the Android
device path, and wraps platform-specific code with #if defined(ANDROID)
to ensure correct behavior on both Android and non-Android systems.
These changes improve compatibility and usability of turbostat on
Android devices.
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The MSR offset calculations for fixed performance counters are stored at
the wrong index in the configuration array causing the general purpose
counter MSR offset to be overwritten, so both the general purpose and the
fixed counters offsets are incorrect. Correct the array index calculation
to fix that.
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Merge tag 'perf-urgent-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 perf fix from Thomas Gleixner:
"A single fix for the x86 performance counters on Intel CPUs:
The MSR offset calculations for fixed performance counters are stored
at the wrong index in the configuration array causing the general
purpose counter MSR offset to be overwritten, so both the general
purpose and the fixed counters offsets are incorrect.
Correct the array index calculation to fix that"
* tag 'perf-urgent-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Fix incorrect MSR index calculations in intel_pmu_config_acr()
The conversion to per device MSI domains created a MSI domain with size 1
instead of sizing it to the maximum possible number of MSI interrupts for
the device. This "worked" as the subsequent allocations resized the
domain, but the recent change to move the prepare() call into the domain
creation path broke this works by chance mechanism. Size the domain
properly at creation time.
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Merge tag 'irq-urgent-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
"A single fix for the PCI/MSI code:
The conversion to per device MSI domains created a MSI domain with
size 1 instead of sizing it to the maximum possible number of MSI
interrupts for the device. This "worked" as the subsequent allocations
resized the domain, but the recent change to move the prepare() call
into the domain creation path broke this works by chance mechanism.
Size the domain properly at creation time"
* tag 'irq-urgent-2025-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
PCI/MSI: Size device MSI domain with the maximum number of vectors
this cycle regression (well, bugfix for this cycle bugfix for v6.15-rc1 regression)
do_move_mount(): split the checks in subtree-of-our-ns and entire-anon cases
selftests/mount_setattr: adapt detached mount propagation test
v6.15 fs: allow clone_private_mount() for a path on real rootfs
v6.11 fs/fhandle.c: fix a race in call of has_locked_children()
v5.15 fix propagation graph breakage by MOVE_MOUNT_SET_GROUP move_mount(2)
v5.15 clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns
v5.7 path_overmount(): avoid false negatives
v3.12 finish_automount(): don't leak MNT_LOCKED from parent to child
v2.6.15 do_change_type(): refuse to operate on unmounted/not ours mounts
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull mount fixes from Al Viro:
"Various mount-related bugfixes:
- split the do_move_mount() checks in subtree-of-our-ns and
entire-anon cases and adapt detached mount propagation selftest for
mount_setattr
- allow clone_private_mount() for a path on real rootfs
- fix a race in call of has_locked_children()
- fix move_mount propagation graph breakage by MOVE_MOUNT_SET_GROUP
- make sure clone_private_mnt() caller has CAP_SYS_ADMIN in the right
userns
- avoid false negatives in path_overmount()
- don't leak MNT_LOCKED from parent to child in finish_automount()
- do_change_type(): refuse to operate on unmounted/not ours mounts"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
do_change_type(): refuse to operate on unmounted/not ours mounts
clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns
selftests/mount_setattr: adapt detached mount propagation test
do_move_mount(): split the checks in subtree-of-our-ns and entire-anon cases
fs: allow clone_private_mount() for a path on real rootfs
fix propagation graph breakage by MOVE_MOUNT_SET_GROUP move_mount(2)
finish_automount(): don't leak MNT_LOCKED from parent to child
path_overmount(): avoid false negatives
fs/fhandle.c: fix a race in call of has_locked_children()
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Merge tag '6.16-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- multichannel/reconnect fixes
- move smbdirect (smb over RDMA) defines to fs/smb/common so they will
be able to be used in the future more broadly, and a documentation
update explaining setting up smbdirect mounts
- update email address for Paulo
* tag '6.16-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal version number
MAINTAINERS, mailmap: Update Paulo Alcantara's email address
cifs: add documentation for smbdirect setup
cifs: do not disable interface polling on failure
cifs: serialize other channels when query server interfaces is pending
cifs: deal with the channel loading lag while picking channels
smb: client: make use of common smbdirect_socket_parameters
smb: smbdirect: introduce smbdirect_socket_parameters
smb: client: make use of common smbdirect_socket
smb: smbdirect: add smbdirect_socket.h
smb: client: make use of common smbdirect.h
smb: smbdirect: add smbdirect.h with public structures
smb: client: make use of common smbdirect_pdu.h
smb: smbdirect: add smbdirect_pdu.h with protocol definitions
- Fix regression of waiting a long time on updating trace event filters
When the faultable trace points were added, it needed task trace RCU
synchronization. This was added to the tracepoint_synchronize_unregister()
function. The filter logic always called this function whenever it
updated the trace event filters before freeing the old filters.
This increased the time of "trace-cmd record" from taking 13 seconds
to running over 2 minutes to complete.
Move the freeing of the filters to call_rcu*() logic, which brings the
time back down to 13 seconds.
- Fix ring_buffer_subbuf_order_set() error path lock protection
The error path of the ring_buffer_subbuf_order_set() released the
mutex too early and allowed subsequent accesses to setting the
subbuffer size to corrupt the data and cause a bug.
By moving the mutex locking to the end of the error path, it prevents
the reentrant access to the critical data and also allows the function
to convert the taking of the mutex over to the guard() logic.
- Remove unused power management clock events
The clock events were added in 2010 for power management. In 2011
arm used them. In 2013 the code they were used in was removed.
These events have been wasting memory since then.
- Fix sparse warnings
There was a few places that sparse warned about trace_events_filter.c
where file->filter was referenced directly, but it is annotated with
an __rcu tag. Use the helper functions and fix them up to use
rcu_dereference() properly.
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Merge tag 'trace-v6.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull more tracing fixes from Steven Rostedt:
- Fix regression of waiting a long time on updating trace event filters
When the faultable trace points were added, it needed task trace RCU
synchronization.
This was added to the tracepoint_synchronize_unregister() function.
The filter logic always called this function whenever it updated the
trace event filters before freeing the old filters. This increased
the time of "trace-cmd record" from taking 13 seconds to running over
2 minutes to complete.
Move the freeing of the filters to call_rcu*() logic, which brings
the time back down to 13 seconds.
- Fix ring_buffer_subbuf_order_set() error path lock protection
The error path of the ring_buffer_subbuf_order_set() released the
mutex too early and allowed subsequent accesses to setting the
subbuffer size to corrupt the data and cause a bug.
By moving the mutex locking to the end of the error path, it prevents
the reentrant access to the critical data and also allows the
function to convert the taking of the mutex over to the guard()
logic.
- Remove unused power management clock events
The clock events were added in 2010 for power management. In 2011 arm
used them. In 2013 the code they were used in was removed. These
events have been wasting memory since then.
- Fix sparse warnings
There was a few places that sparse warned about trace_events_filter.c
where file->filter was referenced directly, but it is annotated with
an __rcu tag. Use the helper functions and fix them up to use
rcu_dereference() properly.
* tag 'trace-v6.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Add rcu annotation around file->filter accesses
tracing: PM: Remove unused clock events
ring-buffer: Fix buffer locking in ring_buffer_subbuf_order_set()
tracing: Fix regression of filter waiting a long time on RCU synchronization
Move this API to the canonical timer_*() namespace.
[ tglx: Redone against pre rc1 ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com
- Add support for the EXPORT_SYMBOL_GPL_FOR_MODULES() macro, which exports a
symbol only to specified modules
- Improve ABI handling in gendwarfksyms
- Forcibly link lib-y objects to vmlinux even if CONFIG_MODULES=n
- Add checkers for redundant or missing <linux/export.h> inclusion
- Deprecate the extra-y syntax
- Fix a genksyms bug when including enum constants from *.symref files
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Merge tag 'kbuild-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Add support for the EXPORT_SYMBOL_GPL_FOR_MODULES() macro, which
exports a symbol only to specified modules
- Improve ABI handling in gendwarfksyms
- Forcibly link lib-y objects to vmlinux even if CONFIG_MODULES=n
- Add checkers for redundant or missing <linux/export.h> inclusion
- Deprecate the extra-y syntax
- Fix a genksyms bug when including enum constants from *.symref files
* tag 'kbuild-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (28 commits)
genksyms: Fix enum consts from a reference affecting new values
arch: use always-$(KBUILD_BUILTIN) for vmlinux.lds
kbuild: set y instead of 1 to KBUILD_{BUILTIN,MODULES}
efi/libstub: use 'targets' instead of extra-y in Makefile
module: make __mod_device_table__* symbols static
scripts/misc-check: check unnecessary #include <linux/export.h> when W=1
scripts/misc-check: check missing #include <linux/export.h> when W=1
scripts/misc-check: add double-quotes to satisfy shellcheck
kbuild: move W=1 check for scripts/misc-check to top-level Makefile
scripts/tags.sh: allow to use alternative ctags implementation
kconfig: introduce menu type enum
docs: symbol-namespaces: fix reST warning with literal block
kbuild: link lib-y objects to vmlinux forcibly even when CONFIG_MODULES=n
tinyconfig: enable CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
docs/core-api/symbol-namespaces: drop table of contents and section numbering
modpost: check forbidden MODULE_IMPORT_NS("module:") at compile time
kbuild: move kbuild syntax processing to scripts/Makefile.build
Makefile: remove dependency on archscripts for header installation
Documentation/kbuild: Add new gendwarfksyms kABI rules
Documentation/kbuild: Drop section numbers
...
- sh: kprobes: Remove unused variables in kprobe_exceptions_notify()
- sh: ecovec24: Make SPI mode explicit
- sh: Replace __ASSEMBLY__ with __ASSEMBLER__ in all headers
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Merge tag 'sh-for-v6.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
Pull sh updates from John Paul Adrian Glaubitz:
- replace the __ASSEMBLY__ with __ASSEMBLER__ macro in all headers
since the latter is now defined automatically by both GCC and Clang
when compiling assembly code (Thomas Huth)
- set the default SPI mode for the ecovec24 board which became
necessary after a new mode member as added to the sh_msiof_spi_info
struct in cf9e4784f3 ("spi: sh-msiof: Add slave mode support")
(Geert Uytterhoeven)
- remove unused variables in the kprobes code in
kprobe_exceptions_notify() (Mike Rapoport)
* tag 'sh-for-v6.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
sh: kprobes: Remove unused variables in kprobe_exceptions_notify()
sh: ecovec24: Make SPI mode explicit
sh: Replace __ASSEMBLY__ with __ASSEMBLER__ in all headers
1, Adjust the 'make install' operation;
2, Support SCHED_MC (Multi-core scheduler);
3, Enable ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS;
4, Enable HAVE_ARCH_STACKLEAK;
5, Increase max supported CPUs up to 2048;
6, Introduce the numa_memblks conversion;
7, Add PWM controller nodes in dts;
8, Some bug fixes and other small changes.
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Merge tag 'loongarch-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Adjust the 'make install' operation
- Support SCHED_MC (Multi-core scheduler)
- Enable ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS
- Enable HAVE_ARCH_STACKLEAK
- Increase max supported CPUs up to 2048
- Introduce the numa_memblks conversion
- Add PWM controller nodes in dts
- Some bug fixes and other small changes
* tag 'loongarch-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
platform/loongarch: laptop: Unregister generic_sub_drivers on exit
platform/loongarch: laptop: Add backlight power control support
platform/loongarch: laptop: Get brightness setting from EC on probe
LoongArch: dts: Add PWM support to Loongson-2K2000
LoongArch: dts: Add PWM support to Loongson-2K1000
LoongArch: dts: Add PWM support to Loongson-2K0500
LoongArch: vDSO: Correctly use asm parameters in syscall wrappers
LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()
LoongArch: Preserve firmware configuration when desired
LoongArch: Avoid using $r0/$r1 as "mask" for csrxchg
LoongArch: Introduce the numa_memblks conversion
LoongArch: Increase max supported CPUs up to 2048
LoongArch: Enable HAVE_ARCH_STACKLEAK
LoongArch: Enable ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS
LoongArch: Add SCHED_MC (Multi-core scheduler) support
LoongArch: Add some annotations in archhelp
LoongArch: Using generic scripts/install.sh in `make install`
LoongArch: Add a default install.sh
