Two reverts merged into one commit to handle a regression caused by a
wrong cleanup because the underlying implications were unclear.
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Merge tag 'i2c-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"Two reverts merged into one commit to handle a regression caused by a
wrong cleanup because the underlying implications were unclear"
* tag 'i2c-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: muxes: pca954x: Fix broken reset-gpio usage
- Strip trailing padding bytes from modules.builtin.modinfo to fix error
during modules_install with certain versions of kmod
- Drop unused static inline function warning in .c files with clang from
W=1 to W=2
- Ensure kernel-doc.py invocations use the PYTHON3 make variable to
ensure user's choice of Python interpreter is always respected
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Merge tag 'kbuild-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:
- Strip trailing padding bytes from modules.builtin.modinfo to fix
error during modules_install with certain versions of kmod
- Drop unused static inline function warning in .c files with clang
from W=1 to W=2
- Ensure kernel-doc.py invocations use the PYTHON3 make variable to
ensure user's choice of Python interpreter is always respected
* tag 'kbuild-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: Let kernel-doc.py use PYTHON3 override
compiler_types: Move unused static inline functions warning to W=2
kbuild: Strip trailing padding bytes from modules.builtin.modinfo
It is possible to force a specific version of python to be used when
building the kernel by passing PYTHON3= on the make command line.
However kernel-doc.py is currently called with python3 hard-coded and
thus ignores this setting.
Use $(PYTHON3) to run $(KERNELDOC) so that the desired version of
python is used.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://patch.msgid.link/20251107192933.2bfe9e57@endymion
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
nouveau:
- revert DMA mask change
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Merge tag 'drm-fixes-2025-11-09' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fix from Dave Airlie:
"Brown paper bag, the dma mask fix which I applied and actually looked
through for bad things, actually broke newer GPUs, there might be some
latent part in the boot path that is assuming 32-bit still, but we
will figure that out elsewhere.
nouveau:
- revert DMA mask change"
* tag 'drm-fixes-2025-11-09' of https://gitlab.freedesktop.org/drm/kernel:
Revert "drm/nouveau: set DMA mask before creating the flush page"
- Fix AMD PCI root device caching regression that triggers
on certain firmware variants
- Fix the zen5_rdseed_microcode[] array to be NULL-terminated
- Add more AMD models to microcode signature checking
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix AMD PCI root device caching regression that triggers
on certain firmware variants
- Fix the zen5_rdseed_microcode[] array to be NULL-terminated
- Add more AMD models to microcode signature checking
* tag 'x86-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/AMD: Add more known models to entry sign checking
x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode
x86/amd_node: Fix AMD root device caching
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Fix a group-throttling bug in the fair scheduler"
* tag 'sched-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Prevent cfs_rq from being unthrottled with zero runtime_remaining
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fix from Ingo Molnar:
"Fix a system hang caused by cpu-clock events deadlock"
* tag 'perf-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix system hang caused by cpu-clock usage
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Merge tag 'io_uring-6.18-20251107' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fix from Jens Axboe:
"Single fix in there, fixing an overflow in calculating the needed
segments for converting into a bvec array"
* tag 'io_uring-6.18-20251107' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: fix regbuf vector size truncation
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-6.18-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
"This contain fixes for the RT and zoned allocator, and a few fixes for
atomic writes"
* tag 'xfs-fixes-6.18-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: free xfs_busy_extents structure when no RT extents are queued
xfs: fix zone selection in xfs_select_open_zone_mru
xfs: fix a rtgroup leak when xfs_init_zone fails
xfs: fix various problems in xfs_atomic_write_cow_iomap_begin
xfs: fix delalloc write failures in software-provided atomic writes
This reverts commit ebe7556050.
Tested the latest kernel on my GB203 and this seems to break it somehow.
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: gsp: GSP-FMC boot failed (mbox: 0x0000000b)
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: gsp: init failed, -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: init failed with -5
Nov 09 04:16:14 bighp kernel: nouveau: drm:00000000:00000080: init failed with -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: drm: Device allocation failed: -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: probe with driver nouveau failed with error -5
Not sure why, I went over the patch and thought it should have worked, but there must be some
32-bit problem maybe in the FMC boot path.
Signed-off-by: Dave Airlie <airlied@redhat.com>
There is a report of io_estimate_bvec_size() truncating the calculated
number of segments that leads to corruption issues. Check it doesn't
overflow "int"s used later. Rough but simple, can be improved on top.
Cc: stable@vger.kernel.org
Fixes: 9ef4cbbcb4 ("io_uring: add infra for importing vectored reg buffers")
Reported-by: Google Big Sleep <big-sleep-vuln-reports+bigsleep-458654612@google.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Günther Noack <gnoack@google.com>
Tested-by: Günther Noack <gnoack@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
sched:
- Fix deadlock
amdgpu:
- Reset fixes
- Misc fixes
- Panel scaling fixes
- HDMI fix
- S0ix fixes
- Hibernation fix
- Secure display fix
- Suspend fix
- MST fix
amdkfd:
- Process cleanup fix
xe:
- Fix missing synchronization on unbind
- Fix device shutdown when doing FLR
- Fix user fence signaling order
i915:
- Avoid lock inversion when pinning to GGTT on CHV/BXT+VTD
- Fix conversion between clock ticks and nanoseconds
mediatek:
- Disable AFBC support on Mediatek DRM driver
- Add pm_runtime support for GCE power control
imagination:
- kconfig: Fix dependencies
nouveau:
- Set DMA mask earlier
- Advertize correct modifiers for GB20x
pixpaper:
- kconfig: Fix dependencies
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Merge tag 'drm-fixes-2025-11-08' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Back from travel, thanks to Simona for handling things. regular fixes,
seems about the right size, but spread out a bit.
amdgpu has the usual range of fixes, xe has a few fixes, and nouveau
has a couple of fixes, one for blackwell modifiers on 8/16 bit
surfaces.
Otherwise a few small fixes for mediatek, sched, imagination and
pixpaper.
sched:
- Fix deadlock
amdgpu:
- Reset fixes
- Misc fixes
- Panel scaling fixes
- HDMI fix
- S0ix fixes
- Hibernation fix
- Secure display fix
- Suspend fix
- MST fix
amdkfd:
- Process cleanup fix
xe:
- Fix missing synchronization on unbind
- Fix device shutdown when doing FLR
- Fix user fence signaling order
i915:
- Avoid lock inversion when pinning to GGTT on CHV/BXT+VTD
- Fix conversion between clock ticks and nanoseconds
mediatek:
- Disable AFBC support on Mediatek DRM driver
- Add pm_runtime support for GCE power control
imagination:
- kconfig: Fix dependencies
nouveau:
- Set DMA mask earlier
- Advertize correct modifiers for GB20x
pixpaper:
- kconfig: Fix dependencies"
* tag 'drm-fixes-2025-11-08' of https://gitlab.freedesktop.org/drm/kernel: (26 commits)
drm/xe: Enforce correct user fence signaling order using
drm/xe: Do clean shutdown also when using flr
drm/xe: Move declarations under conditional branch
drm/xe/guc: Synchronize Dead CT worker with unbind
drm/amd/display: Enable mst when it's detected but yet to be initialized
drm/amdgpu: Fix wait after reset sequence in S3
drm/amd: Fix suspend failure with secure display TA
drm/amdgpu: fix gpu page fault after hibernation on PF passthrough
drm/tiny: pixpaper: add explicit dependency on MMU
drm/nouveau: Advertise correct modifiers on GB20x
drm: define NVIDIA DRM format modifiers for GB20x
drm/nouveau: set DMA mask before creating the flush page
drm/sched: Fix deadlock in drm_sched_entity_kill_jobs_cb
drm/amd/display: Fix NULL deref in debugfs odm_combine_segments
drm/amdkfd: Don't clear PT after process killed
drm/amdgpu/smu: Handle S0ix for vangogh
drm/amdgpu: Drop PMFW RLC notifier from amdgpu_device_suspend()
drm/amd/display: Fix black screen with HDMI outputs
drm/amd/display: Don't stretch non-native images by default in eDP
drm/amd/pm: fix missing device_attr cleanup in amdgpu_pm_sysfs_init()
...
- fix crash triggered by unaligned access in parisc unwinder
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Merge tag 'parisc-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fix from Helge Deller:
- fix crash triggered by unaligned access in parisc unwinder
* tag 'parisc-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Avoid crash due to unaligned access in unwinder
Three fixes:
- Syzkaller found a case where maths overflows can cause divide by 0
- Typo in a compiler bug warning fix in the selftests broke the selftests
- type1 compatability had a mismatch when unmapping an already unmaped
range, it should succeed
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd fixes from Jason Gunthorpe:
- Syzkaller found a case where maths overflows can cause divide by 0
- Typo in a compiler bug warning fix in the selftests broke the
selftests
- type1 compatability had a mismatch when unmapping an already unmapped
range, it should succeed
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd: Make vfio_compat's unmap succeed if the range is already empty
iommufd/selftest: Fix ioctl return value in _test_cmd_trigger_vevents()
iommufd: Don't overflow during division for dirty tracking
Per Nathan, clang catches unused "static inline" functions in C files
since commit 6863f5643d ("kbuild: allow Clang to find unused static
inline functions for W=1 build").
Linus said:
> So I entirely ignore W=1 issues, because I think so many of the extra
> warnings are bogus.
>
> But if this one in particular is causing more problems than most -
> some teams do seem to use W=1 as part of their test builds - it's fine
> to send me a patch that just moves bad warnings to W=2.
>
> And if anybody uses W=2 for their test builds, that's THEIR problem..
Here is the change to bump the warning from W=1 to W=2.
Fixes: 6863f5643d ("kbuild: allow Clang to find unused static inline functions for W=1 build")
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251106105000.2103276-1-andriy.shevchenko@linux.intel.com
[nathan: Adjust comment as well]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
SMB2_change_notify called smb2_validate_iov() but ignored the return
code, then kmemdup()ed using server provided OutputBufferOffset/Length.
Check the return of smb2_validate_iov() and bail out on error.
Discovered with help from the ZeroPath security tooling.
Signed-off-by: Joshua Rogers <linux@joshua.hu>
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Cc: stable@vger.kernel.org
Fixes: e3e9463414 ("smb3: improve SMB3 change notification support")
Signed-off-by: Steve French <stfrench@microsoft.com>
- use the firmware node of the GPIO chip, not its label for software
node lookup
- fix invalid pointer access in GPIO debugfs
- drop unused functions from gpio-tb10x
- fix a regression in gpio-aggregator: restore the set_config() callback
in the driver
- correct schema $id path in ti,twl4030 DT bindings
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Merge tag 'gpio-fixes-for-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- use the firmware node of the GPIO chip, not its label for software
node lookup
- fix invalid pointer access in GPIO debugfs
- drop unused functions from gpio-tb10x
- fix a regression in gpio-aggregator: restore the set_config()
callback in the driver
- correct schema $id path in ti,twl4030 DT bindings
* tag 'gpio-fixes-for-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: tb10x: Drop unused tb10x_set_bits() function
gpio: aggregator: restore the set_config operation
gpiolib: fix invalid pointer access in debugfs
gpio: swnode: don't use the swnode's name as the key for GPIO lookup
dt-bindings: gpio: ti,twl4030: Correct the schema $id path
- Check for reader catching up in ring_buffer_map_get_reader()
If the reader catches up to the writer in the memory mapped ring buffer
then calling rb_get_reader_page() will return NULL as there's no
pages left. But this isn't checked for before calling rb_get_reader_page()
and the return of NULL causes a warning.
If it is detected that the reader caught up to the writer, then simply
exit the routine.
- Fix memory leak in histogram create_field_var()
The couple of the error paths in create_field_var() did not properly clean
up what was allocated. Make sure everything is freed properly on error.
- Fix help message of tools latency_collector
The help message incorrectly stated that "-t" was the same as "--threads"
whereas "--threads" is actually represented by "-e".
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Merge tag 'trace-v6.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Check for reader catching up in ring_buffer_map_get_reader()
If the reader catches up to the writer in the memory mapped ring
buffer then calling rb_get_reader_page() will return NULL as there's
no pages left. But this isn't checked for before calling
rb_get_reader_page() and the return of NULL causes a warning.
If it is detected that the reader caught up to the writer, then
simply exit the routine
- Fix memory leak in histogram create_field_var()
The couple of the error paths in create_field_var() did not properly
clean up what was allocated. Make sure everything is freed properly
on error
- Fix help message of tools latency_collector
The help message incorrectly stated that "-t" was the same as
"--threads" whereas "--threads" is actually represented by "-e"
* tag 'trace-v6.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/tools: Fix incorrcet short option in usage text for --threads
tracing: Fix memory leaks in create_field_var()
ring-buffer: Do not warn in ring_buffer_map_get_reader() when reader catches up
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Merge tag 'slab-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
- Fix for potential infinite loop in kmalloc_nolock() when debugging
is enabled for the cache (Vlastimil Babka)
* tag 'slab-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slab: prevent infinite loop in kmalloc_nolock() with debugging
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Merge tag 'io_uring-6.18-20251106' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Remove the sync refill API that was added in this release, in
anticipation of doing it in a better way for the next release
- Fix type extension for calculating size off nr_pages, like we do
in other spots
* tag 'io_uring-6.18-20251106' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: fix types for region size calulation
io_uring/zcrx: remove sync refill uapi
All fixes in the UFS driver. The big contributor to the diffstats is
the Intel controller S0ix/S3 fix which has to special case the
suspend/resume patch for intel controllers in ufshcd-pci.c
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"All fixes in the UFS driver.
The big contributor to the diffstats is the Intel controller S0ix/S3
fix which has to special case the suspend/resume patch for intel
controllers in ufshcd-pci.c"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Fix invalid probe error return value
scsi: ufs: ufs-pci: Set UFSHCD_QUIRK_PERFORM_LINK_STARTUP_ONCE for Intel ADL
scsi: ufs: core: Add a quirk to suppress link_startup_again
scsi: ufs: ufs-pci: Fix S0ix/S3 for Intel controllers
scsi: ufs: core: Revert "Make HID attributes visible"
scsi: ufs: core: Reduce link startup failure logging
scsi: ufs: core: Fix a race condition related to the "hid" attribute group
scsi: ufs: ufs-qcom: Fix UFS OCP issue during UFS power down (PC=3)
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Merge tag 'v6.18-rc4-smb-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- More safely detect RDMA capable devices correctly
* tag 'v6.18-rc4-smb-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: detect RDMA capable netdevs include IPoIB
ksmbd: detect RDMA capable lower devices when bridge and vlan netdev is used
The help message incorrectly listed '-t' as the short option for
--threads, but the actual getopt_long configuration uses '-e'.
This mismatch can confuse users and lead to incorrect command-line
usage. This patch updates the usage string to correctly show:
"-e, --threads NRTHR"
to match the implementation.
Note: checkpatch.pl reports a false-positive spelling warning on
'Run', which is intentional.
Link: https://patch.msgid.link/20251106031040.1869-1-zhangchujun@cmss.chinamobile.com
Signed-off-by: Zhang Chujun <zhangchujun@cmss.chinamobile.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Prevent application hangs caused by out-of-order fence signaling when
user fences are attached. Use drm_syncobj (via dma-fence-chain) to
guarantee that each user fence signals in order, regardless of the
signaling order of the attached fences. Ensure user fence writebacks to
user space occur in the correct sequence.
v7:
- Skip drm_syncbj create of error (CI)
Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20251031234050.3043507-2-matthew.brost@intel.com
(cherry picked from commit adda4e855a)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Two Zen5 systems are missing from need_sha_check(). Add them.
Fixes: 50cef76d5c ("x86/microcode/AMD: Load only SHA256-checksummed patches")
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/20251106182904.4143757-1-superm1@kernel.org
Currently Xe driver is triggering flr without any clean-up on
shutdown. This is causing random warnings from pending related works as the
underlying hardware is reset in the middle of their execution.
Fix this by performing clean shutdown also when using flr.
Fixes: 501d799a47 ("drm/xe: Wire up device shutdown handler")
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Link: https://patch.msgid.link/20251031122312.1836534-1-jouni.hogander@intel.com
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
(cherry picked from commit a4ff26b7c8)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
The xe_device_shutdown() function was needing a few declarations
that were only required under a specific condition. This change
moves those declarations to be within that conditional branch
to avoid unnecessary declarations.
Reviewed-by: Nitin Gote <nitin.r.gote@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20251007100208.1407021-1-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
(cherry picked from commit 15b3036045)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Cancel and wait for any Dead CT worker to complete before continuing
with device unbinding. Else the worker will end up using resources freed
by the undind operation.
Cc: Zhanjun Dong <zhanjun.dong@intel.com>
Fixes: d2c5a5a926 ("drm/xe/guc: Dead CT helper")
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://patch.msgid.link/20251103123144.3231829-6-balasubramani.vivekanandan@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 4926713391)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
1. Disable AFBC support on Mediatek DRM driver
2. Add pm_runtime support for GCE power control
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Merge tag 'mediatek-drm-fixes-20251105' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-fixes
Mediatek DRM Fixes - 20251105
1. Disable AFBC support on Mediatek DRM driver
2. Add pm_runtime support for GCE power control
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patch.msgid.link/20251105151443.3909-1-chunkuang.hu@kernel.org
The function create_field_var() allocates memory for 'val' through
create_hist_field() inside parse_atom(), and for 'var' through
create_var(), which in turn allocates var->type and var->var.name
internally. Simply calling kfree() to release these structures will
result in memory leaks.
Use destroy_hist_field() to properly free 'val', and explicitly release
the memory of var->type and var->var.name before freeing 'var' itself.
Link: https://patch.msgid.link/20251106120132.3639920-1-zilin@seu.edu.cn
Fixes: 02205a6752 ("tracing: Add support for 'field variables'")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The function ring_buffer_map_get_reader() is a bit more strict than the
other get reader functions, and except for certain situations the
rb_get_reader_page() should not return NULL. If it does, it triggers a
warning.
This warning was triggering but after looking at why, it was because
another acceptable situation was happening and it wasn't checked for.
If the reader catches up to the writer and there's still data to be read
on the reader page, then the rb_get_reader_page() will return NULL as
there's no new page to get.
In this situation, the reader page should not be updated and no warning
should trigger.
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Vincent Donnefort <vdonnefort@google.com>
Reported-by: syzbot+92a3745cea5ec6360309@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/690babec.050a0220.baf87.0064.GAE@google.com/
Link: https://lore.kernel.org/20251016132848.1b11bb37@gandalf.local.home
Fixes: 117c39200d ("ring-buffer: Introducing ring-buffer mapping functions")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
- tprobe-events: Fix to register tracepoint correctly
tprobe-events missed to set tracepoint data structure before
registering callback when enabling it. This sets it correctly.
- tprobe-events: Fix to put tracepoint_user when disable the event.
tprobe-events missed to unregister tracepoint callback when the
event is disabled. This ensures to unregister it.
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Merge tag 'probes-fixes-v6.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probe fixes from Masami Hiramatsu:
- tprobe-events: Fix to register tracepoint correctly
tprobe-events missed to set tracepoint data structure before
registering callback when enabling it. This sets it correctly.
- tprobe-events: Fix to put tracepoint_user when disable the event
tprobe-events missed to unregister tracepoint callback when the event
is disabled. This ensures to unregister it.
* tag 'probes-fixes-v6.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: tprobe-events: Fix to put tracepoint_user when disable the tprobe
tracing: tprobe-events: Fix to register tracepoint correctly
- Add James Clark as a perf tools reviewer.
- Handle '1' type symbols in /proc/kallsyms, related to anonymous Rust closures
in the DRM panic QR encoder, caught by 'perf test'.
- Sync kernel header copies: MSRs, uprobe syscall, DRM_IOCTL_GEM_CHANGE_HANDLE,
KVM exit reasons, etc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.18-1-2025-11-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Add James Clark as a perf tools reviewer
- Handle '1' type symbols in /proc/kallsyms, related to anonymous
Rust closures in the DRM panic QR encoder, caught by 'perf test'
- Sync kernel header copies: MSRs, uprobe syscall,
DRM_IOCTL_GEM_CHANGE_HANDLE, KVM exit reasons, etc
* tag 'perf-tools-fixes-for-v6.18-1-2025-11-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf symbols: Handle '1' symbols in /proc/kallsyms
tools headers asm: Sync fls headers header with the kernel sources
tools headers UAPI: Sync KVM's vmx.h header with the kernel sources to handle new exit reasons
tools headers svm: Sync svm headers with the kernel sources
tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
MAINTAINERS: Add James Clark as a perf tools reviewer
tools headers UAPI: Sync linux/kvm.h with the kernel sources
tools headers UAPI: Update tools's copy of drm.h to pick DRM_IOCTL_GEM_CHANGE_HANDLE
tools headers x86 cpufeatures: Sync with the kernel sources
tools headers x86: Sync table due to introducion of uprobe syscall
tools headers: Sync uapi/linux/fcntl.h with the kernel sources
tools headers: Sync uapi/linux/prctl.h with the kernel source
tools headers uapi: Update fs.h with the kernel sources
tools arch x86: Sync msr-index.h to pick AMD64_{PERF_CNTR_GLOBAL_STATUS_SET,SAVIC_CONTROL}, IA32_L3_QOS_{ABMC,EXT}_CFG
Some RISC-V updates for v6.18-rc5, including:
- A fix to disable KASAN checks while walking a non-current task's
stackframe (following x86)
- A fix for a kvrealloc()-related memory leak in
module_frob_arch_sections()
- Two replacements of strcpy() with strscpy()
- A change to use the RISC-V .insn assembler directive when possible
to assemble instructions from hex opcodes
- Some low-impact fixes in the ptdump code and kprobes test code
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Merge tag 'riscv-for-linus-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- A fix to disable KASAN checks while walking a non-current task's
stackframe (following x86)
- A fix for a kvrealloc()-related memory leak in
module_frob_arch_sections()
- Two replacements of strcpy() with strscpy()
- A change to use the RISC-V .insn assembler directive when possible to
assemble instructions from hex opcodes
- Some low-impact fixes in the ptdump code and kprobes test code
* tag 'riscv-for-linus-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
cpuidle: riscv-sbi: Replace deprecated strcpy in sbi_cpuidle_init_cpu
riscv: KGDB: Replace deprecated strcpy in kgdb_arch_handle_qxfer_pkt
riscv: asm: use .insn for making custom instructions
riscv: tests: Make RISCV_KPROBES_KUNIT tristate
riscv: tests: Rename kprobes_test_riscv to kprobes_riscv
riscv: Fix memory leak in module_frob_arch_sections()
riscv: ptdump: use seq_puts() in pt_dump_seq_puts() macro
riscv: stacktrace: Disable KASAN checks for non-current tasks
- Fix computation of the battery->present value in acpi_battery_read()
to work when battery->id is not zero (Dan Carpenter)
- Fix comment typo in the ACPI CPPC library (Chu Guangqing)
- Fix I2C device references in two ASL examples in the firmware guide
that were broken by a previous update (Jonas Gorski)
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Merge tag 'acpi-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix a coding mistake in the ACPI Smart Battery Subsystem (SBS)
driver and two documentation issues:
- Fix computation of the battery->present value in acpi_battery_read()
to work when battery->id is not zero (Dan Carpenter)
- Fix comment typo in the ACPI CPPC library (Chu Guangqing)
- Fix I2C device references in two ASL examples in the firmware guide
that were broken by a previous update (Jonas Gorski)"
* tag 'acpi-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: SBS: Fix present test in acpi_battery_read()
ACPI: CPPC: Fix typo in a comment
Documentation: ACPI: i2c-muxes: fix I2C device references
__unregister_trace_fprobe() checks tf->tuser to put it when removing
tprobe. However, disable_trace_fprobe() does not use it and only calls
unregister_fprobe(). Thus it forgets to disable tracepoint_user.
If the trace_fprobe has tuser, put it for unregistering the tracepoint
callbacks when disabling tprobe correctly.
Link: https://lore.kernel.org/all/176244794466.155515.3971904050506100243.stgit@devnote2/
Fixes: 2867495dea ("tracing: tprobe-events: Register tracepoint when enable tprobe event")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Tested-by: Beau Belgrave <beaub@linux.microsoft.com>
Reviewed-by: Beau Belgrave <beaub@linux.microsoft.com>
Since __tracepoint_user_init() calls tracepoint_user_register() without
initializing tuser->tpoint with given tracpoint, it does not register
tracepoint stub function as callback correctly, and tprobe does not work.
Initializing tuser->tpoint correctly before tracepoint_user_register()
so that it sets up tracepoint callback.
I confirmed below example works fine again.
echo "t sched_switch preempt prev_pid=prev->pid next_pid=next->pid" > /sys/kernel/tracing/dynamic_events
echo 1 > /sys/kernel/tracing/events/tracepoints/sched_switch/enable
cat /sys/kernel/tracing/trace_pipe
Link: https://lore.kernel.org/all/176244793514.155515.6466348656998627773.stgit@devnote2/
Fixes: 2867495dea ("tracing: tprobe-events: Register tracepoint when enable tprobe event")
Reported-by: Beau Belgrave <beaub@linux.microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Tested-by: Beau Belgrave <beaub@linux.microsoft.com>
Reviewed-by: Beau Belgrave <beaub@linux.microsoft.com>
Merge two documentation fixes for 6.18-rc5, a commet typo fix in the
ACPI CPPC library (Chu Guangqing) and fixes for two ASL examples in the
firmware guide (Jonas Gorski).
* acpi-cppc:
ACPI: CPPC: Fix typo in a comment
* acpi-docs:
Documentation: ACPI: i2c-muxes: fix I2C device references
Two Curve25519 related fixes:
- Re-enable KASAN support on curve25519-hacl64.c with gcc.
- Disable the arm optimized Curve25519 code on CONFIG_CPU_BIG_ENDIAN=y
kernels. It has always been broken in that configuration.
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library fixes from Eric Biggers:
"Two Curve25519 related fixes:
- Re-enable KASAN support on curve25519-hacl64.c with gcc.
- Disable the arm optimized Curve25519 code on CPU_BIG_ENDIAN
kernels. It has always been broken in that configuration"
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
lib/crypto: arm/curve25519: Disable on CPU_BIG_ENDIAN
lib/crypto: curve25519-hacl64: Fix older clang KASAN workaround for GCC
Fix an UBSAN warning that started occurring when the block layer started
supporting logical_block_size > PAGE_SIZE.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux
Pull fscrypt fix from Eric Biggers:
"Fix an UBSAN warning that started occurring when the block layer
started supporting logical_block_size > PAGE_SIZE"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
fscrypt: fix left shift underflow when inode->i_blkbits > PAGE_SHIFT
- Introduce __nocfi_generic for arm32 Clang (Nathan Chancellor)
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Merge tag 'hardening-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:
"This is a work-around for a (now fixed) corner case in the arm32 build
with Clang KCFI enabled.
- Introduce __nocfi_generic for arm32 Clang (Nathan Chancellor)"
* tag 'hardening-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
libeth: xdp: Disable generic kCFI pass for libeth_xdp_tx_xmit_bulk()
ARM: Select ARCH_USES_CFI_GENERIC_LLVM_PASS
compiler_types: Introduce __nocfi_generic
Linus Torvalds
Jean Delvare
Yuta Hayama
Dave Airlie
Pavel Begunkov
Peter Zijlstra
Joshua Rogers
Zhang Chujun
Matthew Brost
Mario Limonciello (AMD)
Jouni Högander
Tejas Upadhyay
Balasubramani Vivekanandan
Zilin Guan
Steven Rostedt
Masami Hiramatsu (Google)
Rafael J. Wysocki