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1,426,898 commits

Author SHA1 Message Date
Jakub Sitnicki
89d912e494 bpf: Add dynptr type for skb metadata
Add a dynptr type, similar to skb dynptr, but for the skb metadata access.

The dynptr provides an alternative to __sk_buff->data_meta for accessing
the custom metadata area allocated using the bpf_xdp_adjust_meta() helper.

More importantly, it abstracts away the fact where the storage for the
custom metadata lives, which opens up the way to persist the metadata by
relocating it as the skb travels through the network stack layers.

Writes to skb metadata invalidate any existing skb payload and metadata
slices. While this is more restrictive that needed at the moment, it leaves
the door open to reallocating the metadata on writes, and should be only a
minor inconvenience to the users.

Only the program types which can access __sk_buff->data_meta today are
allowed to create a dynptr for skb metadata at the moment. We need to
modify the network stack to persist the metadata across layers before
opening up access to other BPF hooks.

Once more BPF hooks gain access to skb_meta dynptr, we will also need to
add a read-only variant of the helper similar to
bpf_dynptr_from_skb_rdonly.

skb_meta dynptr ops are stubbed out and implemented by subsequent changes.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Reviewed-by: Jesse Brandeburg <jbrandeburg@cloudflare.com>
Link: https://patch.msgid.link/20250814-skb-metadata-thru-dynptr-v7-1-8a39e636e0fb@cloudflare.com
2025-08-18 10:29:42 -07:00
Mark Brown
9fd5f18c0b
spi: offload-trigger: followup
Merge series from David Lechner <dlechner@baylibre.com>:

This cleans up a few loose ends from the series that added the ADI Util
Sigma-Delta SPI driver [1].

[1]: https://lore.kernel.org/linux-spi/20250701-iio-adc-ad7173-add-spi-offload-support-v3-0-42abb83e3dac@baylibre.com/
2025-08-18 18:28:08 +01:00
Jens Axboe
7242169037 Merge tag 'md-6.17-20250819' of gitolite.kernel.org:pub/scm/linux/kernel/git/mdraid/linux into block-6.17
Pull MD fixes from Yu:

"- Add a legacy_async_del_gendisk mode, to prevent a user tools
   regression. New user tools releases will not use such a mode, the old
   release with a new kernel now will have warning about deprecated
   behavior, and we prepare to remove this legacy mode after about a
   year later.
 - The rename in kernel causing user tools build failure, revert the
   rename in mdp_superblock_s.
 - Fix a regression that interrupted resync can be shown as recover from
   mdstat or sysfs."

* tag 'md-6.17-20250819' of gitolite.kernel.org:pub/scm/linux/kernel/git/mdraid/linux:
  md: fix sync_action incorrect display during resync
  md: add helper rdev_needs_recovery()
  md: keep recovery_cp in mdp_superblock_s
  md: add legacy_async_del_gendisk mode
2025-08-18 11:13:38 -06:00
Zhang Yi
af24c20c46
ASoC: codecs: ES9389: Modify the standby configuration
Modify the standby configuration

Signed-off-by: Zhang Yi <zhangyi@everest-semi.com>
Link: https://patch.msgid.link/20250815024729.3051-1-zhangyi@everest-semi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-08-18 18:12:46 +01:00
Rafael J. Wysocki
779b1a1cb1 cpuidle: governors: menu: Avoid selecting states with too much latency
Occasionally, the exit latency of the idle state selected by the menu
governor may exceed the PM QoS CPU wakeup latency limit.  Namely, if the
scheduler tick has been stopped already and predicted_ns is greater than
the tick period length, the governor may return an idle state whose exit
latency exceeds latency_req because that decision is made before
checking the current idle state's exit latency.

For instance, say that there are 3 idle states, 0, 1, and 2.  For idle
states 0 and 1, the exit latency is equal to the target residency and
the values are 0 and 5 us, respectively.  State 2 is deeper and has the
exit latency and target residency of 200 us and 2 ms (which is greater
than the tick period length), respectively.

Say that predicted_ns is equal to TICK_NSEC and the PM QoS latency
limit is 20 us.  After the first two iterations of the main loop in
menu_select(), idx becomes 1 and in the third iteration of it the target
residency of the current state (state 2) is greater than predicted_ns.
State 2 is not a polling one and predicted_ns is not less than TICK_NSEC,
so the check on whether or not the tick has been stopped is done.  Say
that the tick has been stopped already and there are no imminent timers
(that is, delta_tick is greater than the target residency of state 2).
In that case, idx becomes 2 and it is returned immediately, but the exit
latency of state 2 exceeds the latency limit.

Address this issue by modifying the code to compare the exit latency of
the current idle state (idle state i) with the latency limit before
comparing its target residency with predicted_ns, which allows one
more exit_latency_ns check that becomes redundant to be dropped.

However, after the above change, latency_req cannot take the predicted_ns
value any more, which takes place after commit 38f83090f5 ("cpuidle:
menu: Remove iowait influence"), because it may cause a polling state
to be returned prematurely.

In the context of the previous example say that predicted_ns is 3000 and
the PM QoS latency limit is still 20 us.  Additionally, say that idle
state 0 is a polling one.  Moving the exit_latency_ns check before the
target_residency_ns one causes the loop to terminate in the second
iteration, before the target_residency_ns check, so idle state 0 will be
returned even though previously state 1 would be returned if there were
no imminent timers.

For this reason, remove the assignment of the predicted_ns value to
latency_req from the code.

Fixes: 5ef499cd57 ("cpuidle: menu: Handle stopped tick more aggressively")
Cc: 4.17+ <stable@vger.kernel.org> # 4.17+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Link: https://patch.msgid.link/5043159.31r3eYUQgx@rafael.j.wysocki
2025-08-18 19:04:25 +02:00
Thomas Weißschuh
27758d8c25
kbuild: enable -Werror for hostprogs
The hostprog compilers and linkers do not share the regular compiler flags,
so they are not affected by CONFIG_WERROR or W=e. As hostprogs are used
during the bootstrap of the build, they can't depend on kconfig options.

Enable -Werror unconditionally.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://lore.kernel.org/rust-for-linux/CANiq72k-PdSH2BNgbq=X+FhpyEErifSCKfO5ObXz6bu9_J8+fA@mail.gmail.com/
Link: https://lore.kernel.org/r/20250814-kbuild-werror-v2-6-c01e596309d2@linutronix.de
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2025-08-18 10:02:57 -07:00
Dave Jiang
e6a9530b3e cxl: Fix emit of type resource_size_t argument for validate_region_offset()
0day reported warnings of:
drivers/cxl/core/region.c:3664:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]

drivers/cxl/core/region.c:3671:37: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]

Replace %#llx with %pr to emit resource_size_t arguments.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202508160513.NAZ9i9rQ-lkp@intel.com/
Cc: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20250818153953.3658952-1-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-08-18 09:58:28 -07:00
David Sterba
37c52167b0 docs: Remove remainders of reiserfs
Reiserfs has been removed in 6.13, there are still some mentions in the
documentation about it and the tools. Remove those that don't seem
relevant anymore but keep references to reiserfs' r5 hash used by some
code.

There's one change in a script scripts/selinux/install_policy.sh but it
does not seem to be relevant either.

Signed-off-by: David Sterba <dsterba@suse.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813100053.1291961-1-dsterba@suse.com
2025-08-18 10:45:43 -06:00
Jonathan Corbet
4e18a0b090 Merge branch 'bjorn' into docs-mw
A big set of typo fixes from Bjorn Helgaas
2025-08-18 10:40:16 -06:00
Rafael J. Wysocki
2bc1adb05e linux-cpupower-6.17-rc2
Fixes set subcommand -t option and enables boost control feature on
 non-x86 platforms that support boot control.
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Merge tag 'linux-cpupower-6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

Merge a cpupower utility fix for 6.17-rc3 from Shuah Khan:

"Fixes set subcommand -t option and enables boost control feature on
 non-x86 platforms that support boost control."

* tag 'linux-cpupower-6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  cpupower: Allow control of boost feature on non-x86 based systems with boost support.
  cpupower: Fix a bug where the -t option of the set subcommand was not working.
2025-08-18 18:40:02 +02:00
Bjorn Helgaas
29fe206065 Documentation: Fix trace typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-9-helgaas@kernel.org
2025-08-18 10:31:20 -06:00
Bjorn Helgaas
3dae66aec6 Documentation: Fix power typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-8-helgaas@kernel.org
2025-08-18 10:31:20 -06:00
Bjorn Helgaas
e855d7e5e2 Documentation: Fix networking typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-7-helgaas@kernel.org
2025-08-18 10:31:20 -06:00
Bjorn Helgaas
81fd803b5a Documentation: Fix filesystems typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-6-helgaas@kernel.org
2025-08-18 10:31:19 -06:00
Bjorn Helgaas
8900f9ad90 Documentation: Fix core-api typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-5-helgaas@kernel.org
2025-08-18 10:31:19 -06:00
Bjorn Helgaas
c349216707 Documentation: Fix admin-guide typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-4-helgaas@kernel.org
2025-08-18 10:31:19 -06:00
Bjorn Helgaas
aa7acf34c5 Documentation: Fix RCU typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-3-helgaas@kernel.org
2025-08-18 10:31:19 -06:00
Bjorn Helgaas
c676a536f6 Documentation: Fix PCI typos
Fix typos.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250813200526.290420-2-helgaas@kernel.org
2025-08-18 10:31:19 -06:00
Mohammad Rafi Shaik
cf65182247
ASoC: codecs: wsa883x: Handle shared reset GPIO for WSA883x speakers
On some Qualcomm platforms such as QCS6490-RB3Gen2, the multiple
WSA8830/WSA8835 speaker amplifiers share a common reset (shutdown) GPIO.

To handle such scenario, use the reset controller framework and its
"reset-gpio" driver to handle such case. This allows proper handling
of all WSA883x speaker amplifiers on QCS6490-RB3Gen2 board.

Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20250815172353.2430981-3-mohammad.rafi.shaik@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-08-18 17:29:42 +01:00
Mohammad Rafi Shaik
126750523e
ASoC: dt-bindings: qcom,wsa8830: Add reset-gpios for shared line
On Qualcomm platforms such as QCS6490-RB3Gen2, the WSA883x speaker
amplifiers share the SD_N GPIO line between two speakers, thus
requires coordinated control when asserting the GPIO. Linux supports
shared GPIO handling via the "reset-gpios" property, which can be
used to specify either the powerdown or reset GPIOs.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
Link: https://patch.msgid.link/20250815172353.2430981-2-mohammad.rafi.shaik@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-08-18 17:29:41 +01:00
Bagas Sanjaya
fea71fe1f0 Documentation: ktap: Separate first bullet list items
The first bullet list items are shown in htmldocs output as combined
with previous paragraph due to missing blank line separator. Add it.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814012046.21235-3-bagasdotme@gmail.com
2025-08-18 10:28:44 -06:00
Bagas Sanjaya
359ad700eb Documentation: ktap: Correct "its" spelling
Fix possessive adjective "its" spelling.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814012046.21235-2-bagasdotme@gmail.com
2025-08-18 10:28:44 -06:00
Jonathan Corbet
1d8125e273 docs: kdoc: remove redundant comment stripping
By the time stuff gets to create_parameter_list(), comments have long since
been stripped out, so we do not need to do it again here.

Acked-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-8-corbet@lwn.net
2025-08-18 10:19:19 -06:00
Jonathan Corbet
e5d91662fc docs: kdoc: tighten up the pointer-to-function case
Tighten up the code and remove an unneeded regex operation.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-7-corbet@lwn.net
2025-08-18 10:19:19 -06:00
Jonathan Corbet
bf6b310d1b docs: kdoc: tighten up the array-of-pointers case
Simplify one gnarly regex and remove another altogether; add a comment
describing what is going on.  There will be no #-substituted commas in this
case, so don't bother trying to put them back.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-6-corbet@lwn.net
2025-08-18 10:19:19 -06:00
Jonathan Corbet
8f05fbc5af docs: kdoc: add a couple more comments in create_parameter_list()
Make what the final code is doing a bit more clear to slow readers like me.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-5-corbet@lwn.net
2025-08-18 10:19:19 -06:00
Jonathan Corbet
05d72fe072 docs: kdoc: clean up the create_parameter_list() "first arg" logic
The logic for finding the name of the first in a series of variable names
is somewhat convoluted and, in the use of .extend(), actively buggy.
Document what is happening and simplify the logic.

Acked-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-4-corbet@lwn.net
2025-08-18 10:19:19 -06:00
Jonathan Corbet
f51b42b99e docs: kdoc: tidy up space removal in create_parameter_list()
Remove a redundant test and add a comment describing what the space removal
is doing.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-3-corbet@lwn.net
2025-08-18 10:19:19 -06:00
Jonathan Corbet
670ec7333a docs: kdoc: remove dead code
create_parameter_list() tests an argument against the same regex twice, in
two different locations; remove the pointless extra tests and the
never-executed error cases that go with them.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-2-corbet@lwn.net
2025-08-18 10:19:19 -06:00
Uwe Kleine-König
b21d1fbb97 ACPI: APEI: EINJ: Fix resource leak by remove callback in .exit.text
The .remove() callback is also used during error handling in
faux_probe(). As einj_remove() was marked with __exit it's not linked
into the kernel if the driver is built-in, potentially resulting in
resource leaks.

Also remove the comment justifying the __exit annotation which doesn't
apply any more since the driver was converted to the faux device
interface.

Fixes: 6cb9441bfe ("ACPI: APEI: EINJ: Transition to the faux device interface")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Cc: 6.16+ <stable@vger.kernel.org> # 6.16+
Link: https://patch.msgid.link/20250814051157.35867-2-u.kleine-koenig@baylibre.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-08-18 18:18:33 +02:00
Christoph Hellwig
f4ae174403 block: remove newlines from the warnings in blk_validate_integrity_limits
Otherwise they are very hard to read in the kernel log.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20250818045456.1482889-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-08-18 10:17:49 -06:00
Ranganath V N
6cf5f13ef3 Documentation: Fix driver-api typos
Corrected a few spelling mistakes

functionalty ==> functionality
in Documentation/driver-api/cxl/devices/device-types.rst

adjascent ==> adjacent
in Documentation/driver-api/cxl/platform/example-configurations/one-dev-per-hb.rst

succeessful ==> successful
in Documentation/driver-api/thermal/exynos_thermal_emulation.rst

Signed-off-by: Ranganath V N <vnranganath.20@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814184304.20448-1-vnranganath.20@gmail.com
2025-08-18 10:17:49 -06:00
Christoph Hellwig
61ca3b891b block: handle pi_tuple_size in queue_limits_stack_integrity
queue_limits_stack_integrity needs to handle the new pi_tuple_size field,
otherwise stacking PI-capable devices will always fail.

Fixes: 76e45252a4 ("block: introduce pi_tuple_size field in blk_integrity")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20250818045456.1482889-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-08-18 10:17:49 -06:00
Linus Torvalds
be48bcf004 for-6.17-rc2-tag
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Merge tag 'for-6.17-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "Several zoned mode fixes, mount option printing fixups, folio state
  handling fixes and one log replay fix.

   - zoned mode:
       - zone activation and finish fixes
       - block group reservation fixes

   - mount option fixes:
       - bring back printing of mount options with key=value that got
         accidentally dropped during mount option parsing in 6.8
       - fix inverse logic or typos when printing nodatasum/nodatacow

   - folio status fixes:
       - writeback fixes in zoned mode
       - properly reset dirty/writeback if submission fails
       - properly handle TOWRITE xarray mark/tag

   - do not set mtime/ctime to current time when unlinking for log
     replay"

* tag 'for-6.17-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix printing of mount info messages for NODATACOW/NODATASUM
  btrfs: restore mount option info messages during mount
  btrfs: fix incorrect log message for nobarrier mount option
  btrfs: fix buffer index in wait_eb_writebacks()
  btrfs: subpage: keep TOWRITE tag until folio is cleaned
  btrfs: clear TAG_TOWRITE from buffer tree when submitting a tree block
  btrfs: do not set mtime/ctime to current time when unlinking for log replay
  btrfs: clear block dirty if btrfs_writepage_cow_fixup() failed
  btrfs: clear block dirty if submit_one_sector() failed
  btrfs: zoned: limit active zones to max_open_zones
  btrfs: zoned: fix write time activation failure for metadata block group
  btrfs: zoned: fix data relocation block group reservation
  btrfs: zoned: skip ZONE FINISH of conventional zones
2025-08-18 09:17:42 -07:00
Vivek Yadav
6865cb1908 docs: remove a duplicated word from kernel-parameters.txt
Fix kernel-doc warning in kernel-parameters.txt

WARNING: Possible repeated word: 'is'

Signed-off-by: Vivek Yadav <vivekyadav1207731111@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250816082452.219009-1-vivekyadav1207731111@gmail.com
2025-08-18 10:11:31 -06:00
Charles Han
7459e87ae1 ACPI: APEI: EINJ: fix potential NULL dereference in __einj_error_inject()
The __einj_error_inject() function allocates memory via kmalloc()
without checking for allocation failure, which could lead to a
NULL pointer dereference.

Return -ENOMEM in case allocation fails.

Fixes: b47610296d ("ACPI: APEI: EINJ: Enable EINJv2 error injections")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://patch.msgid.link/20250815024207.3038-1-hanchunchao@inspur.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-08-18 18:10:15 +02:00
Tony Luck
6c70585149 ACPI: APEI: EINJ: Check if user asked for EINJV2 injection
On an EINJV2 capable system, users may still use the old injection
interface but einj_get_parameter_address() takes the EINJV2 path to map
the parameter structure. This results in the address the user supplied
being stored to the wrong location and the BIOS injecting based on an
uninitialized field (0x0 in the reported case).

Check the version of the request when mapping the EINJ parameter
structure in BIOS reserved memory.

Fixes: 691a0f0a55 ("ACPI: APEI: EINJ: Discover EINJv2 parameters")
Reported-by: Lai, Yi1 <yi1.lai@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Zaid Alali <zaidal@os.amperecomputing.com>
Reviewed-by: Hanjun Guo <gouhanjun@huawei.com>
Link: https://patch.msgid.link/20250814161706.4489-1-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-08-18 18:07:38 +02:00
Nikola Z. Ivanov
ed14c74ddf docs: Replace dead links to spectre side channel white papers
The papers are published by Intel, AMD and MIPS.

Signed-off-by: Nikola Z. Ivanov <zlatistiv@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250816190028.55573-1-zlatistiv@gmail.com
2025-08-18 10:04:24 -06:00
Christoph Manszewski
aa81d55a59 drm/xe: Untangle vm_bind_ioctl cleanup order
Change the resource cleanup order to align with reverse allocation order.

Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Christoph Manszewski <christoph.manszewski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250813101231.196632-3-christoph.manszewski@intel.com
2025-08-18 09:02:24 -07:00
Christoph Manszewski
a01b704527 drm/xe: Fix vm_bind_ioctl double free bug
If the argument check during an array bind fails, the bind_ops are freed
twice as seen below. Fix this by setting bind_ops to NULL after freeing.

==================================================================
BUG: KASAN: double-free in xe_vm_bind_ioctl+0x1b2/0x21f0 [xe]
Free of addr ffff88813bb9b800 by task xe_vm/14198

CPU: 5 UID: 0 PID: 14198 Comm: xe_vm Not tainted 6.16.0-xe-eudebug-cmanszew+ #520 PREEMPT(full)
Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR5 RVP, BIOS ADLPFWI1.R00.2411.A02.2110081023 10/08/2021
Call Trace:
 <TASK>
 dump_stack_lvl+0x82/0xd0
 print_report+0xcb/0x610
 ? __virt_addr_valid+0x19a/0x300
 ? xe_vm_bind_ioctl+0x1b2/0x21f0 [xe]
 kasan_report_invalid_free+0xc8/0xf0
 ? xe_vm_bind_ioctl+0x1b2/0x21f0 [xe]
 ? xe_vm_bind_ioctl+0x1b2/0x21f0 [xe]
 check_slab_allocation+0x102/0x130
 kfree+0x10d/0x440
 ? should_fail_ex+0x57/0x2f0
 ? xe_vm_bind_ioctl+0x1b2/0x21f0 [xe]
 xe_vm_bind_ioctl+0x1b2/0x21f0 [xe]
 ? __pfx_xe_vm_bind_ioctl+0x10/0x10 [xe]
 ? __lock_acquire+0xab9/0x27f0
 ? lock_acquire+0x165/0x300
 ? drm_dev_enter+0x53/0xe0 [drm]
 ? find_held_lock+0x2b/0x80
 ? drm_dev_exit+0x30/0x50 [drm]
 ? drm_ioctl_kernel+0x128/0x1c0 [drm]
 drm_ioctl_kernel+0x128/0x1c0 [drm]
 ? __pfx_xe_vm_bind_ioctl+0x10/0x10 [xe]
 ? find_held_lock+0x2b/0x80
 ? __pfx_drm_ioctl_kernel+0x10/0x10 [drm]
 ? should_fail_ex+0x57/0x2f0
 ? __pfx_xe_vm_bind_ioctl+0x10/0x10 [xe]
 drm_ioctl+0x352/0x620 [drm]
 ? __pfx_drm_ioctl+0x10/0x10 [drm]
 ? __pfx_rpm_resume+0x10/0x10
 ? do_raw_spin_lock+0x11a/0x1b0
 ? find_held_lock+0x2b/0x80
 ? __pm_runtime_resume+0x61/0xc0
 ? rcu_is_watching+0x20/0x50
 ? trace_irq_enable.constprop.0+0xac/0xe0
 xe_drm_ioctl+0x91/0xc0 [xe]
 __x64_sys_ioctl+0xb2/0x100
 ? rcu_is_watching+0x20/0x50
 do_syscall_64+0x68/0x2e0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fa9acb24ded

Fixes: b43e864af0 ("drm/xe/uapi: Add DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR")
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Christoph Manszewski <christoph.manszewski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250813101231.196632-2-christoph.manszewski@intel.com
2025-08-18 09:02:16 -07:00
Linus Torvalds
074e461d9e Ext4 bug fixes and cleanups for 6.17-rc3, including most notably:
* Fix fast commit checks for file systems with ea_inode enabled
   * Don't drop the i_version mount option on a remount
   * Fix FIEMAP reporting when there are holes in a bigalloc file system
   * Don't fail when mounting read-only when there are inodes in the
     orphan file
   * Fix hole length overflow for indirect mapped files on file systems
     with an 8k or 16k block file system.
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Merge tag 'ext4_for_linus-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:

 - Fix fast commit checks for file systems with ea_inode enabled

 - Don't drop the i_version mount option on a remount

 - Fix FIEMAP reporting when there are holes in a bigalloc file system

 - Don't fail when mounting read-only when there are inodes in the
   orphan file

 - Fix hole length overflow for indirect mapped files on file systems
   with an 8k or 16k block file system

* tag 'ext4_for_linus-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  jbd2: prevent softlockup in jbd2_log_do_checkpoint()
  ext4: fix incorrect function name in comment
  ext4: use kmalloc_array() for array space allocation
  ext4: fix hole length calculation overflow in non-extent inodes
  ext4: don't try to clear the orphan_present feature block device is r/o
  ext4: fix reserved gdt blocks handling in fsmap
  ext4: fix fsmap end of range reporting with bigalloc
  ext4: remove redundant __GFP_NOWARN
  ext4: fix unused variable warning in ext4_init_new_dir
  ext4: remove useless if check
  ext4: check fast symlink for ea_inode correctly
  ext4: preserve SB_I_VERSION on remount
  ext4: show the default enabled i_version option
2025-08-18 09:01:00 -07:00
Iris Shi
fce343d854 Documentation/sphinx: Fix typo in automarkup.py
"whan" -> "when"

Signed-off-by: Iris Shi <0.0@owo.li>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/8e5ddb7d-8faf-314f-b1b1-2d15d6900862@owo.li
2025-08-18 09:45:47 -06:00
Thomas Richard
dca2f73cf1 pinctrl: Add pin controller driver for AAEON UP boards
This enables the pin control support of the onboard FPGA on AAEON UP
boards.

This FPGA acts as a level shifter between the Intel SoC pins and the pin
header, and also as a mux or switch.

+---------+          +--------------+             +---+
          |          |              |             |   |
          | PWM0     |       \      |             | H |
          |----------|------  \-----|-------------| E |
          | I2C0_SDA |              |             | A |
Intel SoC |----------|------\       |             | D |
          | GPIO0    |       \------|-------------| E |
          |----------|------        |             | R |
          |          |     FPGA     |             |   |
----------+          +--------------+             +---+

For most of the pins, the FPGA opens/closes a switch to enable/disable
the access to the SoC pin from a pin header.
Each switch, has a direction flag that is set depending the status of the
SoC pin.

For some other pins, the FPGA acts as a mux, and routes one pin (or the
other one) to the header.

The driver also provides a GPIO chip. It requests SoC pins in GPIO mode,
and drives them in tandem with FPGA pins (switch/mux direction).

This commit adds support only for UP Squared board.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://lore.kernel.org/20250811-aaeon-up-board-pinctrl-support-v9-10-29f0cbbdfb30@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-08-18 17:45:07 +02:00
Lizhi Hou
c8cea4371e accel/amdxdna: Add a function to walk hardware contexts
Walking hardware contexts created by a process is duplicated in multiple
spots. Add a function, amdxdna_hwctx_walk(), and replace all spots.

hwctx_srcu and dev_lock are good enough to protect hardware context list.
Remove hwctx_lock.

Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://lore.kernel.org/r/20250815171634.3417487-1-lizhi.hou@amd.com
2025-08-18 08:35:57 -07:00
Anton Protopopov
dbe99ea541 bpf: Add a verbose message when the BTF limit is reached
When a BPF program which is being loaded reaches the map limit
(MAX_USED_MAPS) or the BTF limit (MAX_USED_BTFS) the -E2BIG is
returned. However, in the former case there is an accompanying
verifier verbose message, and in the latter case there is not.
Add a verbose message to make the behaviour symmetrical.

Reported-by: Kevin Sheldrake <kevin.sheldrake@isovalent.com>
Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20250816151554.902995-1-a.s.protopopov@gmail.com
2025-08-18 17:27:01 +02:00
Chi Zhang
236152dd9b pinctrl: single: fix bias pull up/down handling in pin_config_set
In the pin_config_set function, when handling PIN_CONFIG_BIAS_PULL_DOWN or
PIN_CONFIG_BIAS_PULL_UP, the function calls pcs_pinconf_clear_bias()
which writes the register. However, the subsequent operations continue
using the stale 'data' value from before the register write, effectively
causing the bias clear operation to be overwritten and not take effect.

Fix this by reading the 'data' value from the register after calling
pcs_pinconf_clear_bias().

This bug seems to have existed when this code was first merged in commit
9dddb4df90 ("pinctrl: single: support generic pinconf").

Signed-off-by: Chi Zhang <chizhang@asrmicro.com>
Link: https://lore.kernel.org/20250807062038.13610-1-chizhang@asrmicro.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-08-18 17:25:05 +02:00
Hendrik Hamerlinck
694a97ee25 pinctrl: spacemit: remove extra line in debug output
The debug output for spacemit_pinconf_dbg_show() prints an extra newline
at the end. This is redundant as pinconf_pins_show() in pinconf.c already
adds a newline in its for loop.

Remove the newline to avoid the extra line in the output.

Example current output:
$ cat /sys/kernel/debug/pinctrl/d401e000.pinctrl/pinconf-pins
Pin config settings per pin
Format: pin (name): configs
pin 0 (GPIO_00): , bias pull disabled, io type (Fixed/1V8), drive strength (32 mA), register (0x1041)

pin 1 (GPIO_01): slew rate (0x0), bias pull disabled, io type (Fixed/1V8), drive strength (32 mA), register (0x1041)

pin 2 (GPIO_02): slew rate (0x0), bias pull disabled, io type (Fixed/1V8), drive strength (32 mA), register (0x1041)

...

Signed-off-by: Hendrik Hamerlinck <hendrik.hamerlinck@hammernet.be>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Link: https://lore.kernel.org/20250805150701.129113-1-hendrik.hamerlinck@hammernet.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-08-18 17:17:20 +02:00
Julien Massot
65fe705367 dt-bindings: pinctrl: mediatek: mt8183: Allow gpio-line-names
Add support for the 'gpio-line-names' property in the MT8183 pinctrl
binding.
This allows naming the GPIOs, which is already done in several
device trees (e.g. mt8183-kukui-jacuzzi.dtsi, mt8183-kukui-kakadu.dtsi,
mt8183-kukui-krane.dtsi), but was previously generating DT schema
warnings.

Signed-off-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/20250801-mtk-dtb-warnings-v1-7-6ba4e432427b@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-08-18 17:15:29 +02:00
Masami Hiramatsu (Google)
26178b713f x86/insn: Add XOP prefix instructions decoder support
Support decoding AMD's XOP prefix encoded instructions.

These instructions are introduced for Bulldozer micro architecture, and not
supported on Intel's processors. But when compiling kernel with
CONFIG_X86_NATIVE_CPU on some AMD processor (e.g. -march=bdver2), these
instructions can be used.

Closes: https://lore.kernel.org/all/871pq06728.fsf@wylie.me.uk/
Reported-by: Alan J. Wylie <alan@wylie.me.uk>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Alan J. Wylie <alan@wylie.me.uk>
Link: https://lore.kernel.org/175386161199.564247.597496379413236944.stgit@devnote2
2025-08-18 17:15:02 +02:00
Antonino Maniscalco
4876b39165 drm/msm: skip re-emitting IBs for unusable VMs
When a VM is marked as an usuable we disallow new submissions from it,
however submissions that where already scheduled on the ring would still
be re-sent.

Since this can lead to further hangs, avoid emitting the actual IBs.

Fixes: 6a4d287a1a ("drm/msm: Mark VM as unusable on GPU hangs")
Signed-off-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/668314/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-08-18 07:51:10 -07:00