Commit graph

1,399,042 commits

Author SHA1 Message Date
Chao Yu
57e74035ad f2fs: add time stats of checkpoint for debug
checkpoint was blocked for 18643 ms
Step 0: 0 ms
Step 1: 38 ms
Step 2: 63 ms
Step 3: 4 ms
Step 4: 0 ms
Step 5: 0 ms
Step 6: 9 ms
Step 7: 0 ms
Step 8: 18277 ms
Step 9: 249 ms

Cc: Jan Prusakowski <jprusakowski@google.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2025-08-11 17:03:27 +00:00
Chao Yu
3fcf228b64 f2fs: dump more information when checkpoint was blocked for long time
generic/299 w/ mode=lfs will cause long time latency of checkpoint,
let's dump more information once we hit case.

CP merge:
  - Queued :    0
  - Issued :    1
  - Total :    1
  - Cur time : 9765(ms)
  - Peak time : 9765(ms)

F2FS-fs (vdc): blocked on checkpoint for 9765 ms
CPU: 11 UID: 0 PID: 237 Comm: kworker/u128:29 Tainted: G           O        6.16.0-rc3+ #409 PREEMPT(voluntary)
Tainted: [O]=OOT_MODULE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: writeback wb_workfn (flush-253:32)
Call Trace:
 <TASK>
 dump_stack_lvl+0x6e/0xa0
 f2fs_issue_checkpoint+0x268/0x280
 f2fs_write_node_pages+0x6a/0x2c0
 do_writepages+0xd0/0x170
 __writeback_single_inode+0x56/0x4c0
 writeback_sb_inodes+0x22a/0x550
 __writeback_inodes_wb+0x4c/0xf0
 wb_writeback+0x300/0x400
 wb_workfn+0x3de/0x500
 process_one_work+0x230/0x5c0
 worker_thread+0x1da/0x3d0
 kthread+0x10d/0x250
 ret_from_fork+0x164/0x190
 ret_from_fork_asm+0x1a/0x30

Cc: Jan Prusakowski <jprusakowski@google.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2025-08-11 17:03:27 +00:00
Osama Albahrani
3feaa8a469 docs: aoe: Remove trailing whitespace
Fix `ERROR: trailing whitespace` errors from scripts/checkpatch.pl

Signed-off-by: Osama Albahrani <osalbahr@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250804152516.16493-1-osalbahr@gmail.com
2025-08-11 11:01:02 -06:00
Geert Uytterhoeven
119996c9a4 Documentation/printf: Use literal fwnode_handle
When looking for fwnode_handle in the printk format documentation, it is
only found in the Chinese translation:

    $ git grep fwnode_handle -- Documentation/*printk-formats.rst
    Documentation/translations/zh_CN/core-api/printk-formats.rst:用于打印fwnode_handles的消息。默认情况下是打印完整的节点名称,包括路径。

This happens because the original documentation talks about "fwnode
handles", without mentioning the actual type name.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Kunwu Chan <kunwu.chan@linux.dev>
Reviewed-by: Kunwu Chan <kunwu.chan@linux.dev>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Fixes: 3bd32d6a2e ("lib/vsprintf: Add %pfw conversion specifier for printing fwnode names")
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/07262c55e82fc4a3e3dbe7c45713b14955271e7f.1754552156.git.geert+renesas@glider.be
2025-08-11 11:00:06 -06:00
Andrea Righi
ddf7233fca sched/ext: Fix invalid task state transitions on class switch
When enabling a sched_ext scheduler, we may trigger invalid task state
transitions, resulting in warnings like the following (which can be
easily reproduced by running the hotplug selftest in a loop):

 sched_ext: Invalid task state transition 0 -> 3 for fish[770]
 WARNING: CPU: 18 PID: 787 at kernel/sched/ext.c:3862 scx_set_task_state+0x7c/0xc0
 ...
 RIP: 0010:scx_set_task_state+0x7c/0xc0
 ...
 Call Trace:
  <TASK>
  scx_enable_task+0x11f/0x2e0
  switching_to_scx+0x24/0x110
  scx_enable.isra.0+0xd14/0x13d0
  bpf_struct_ops_link_create+0x136/0x1a0
  __sys_bpf+0x1edd/0x2c30
  __x64_sys_bpf+0x21/0x30
  do_syscall_64+0xbb/0x370
  entry_SYSCALL_64_after_hwframe+0x77/0x7f

This happens because we skip initialization for tasks that are already
dead (with their usage counter set to zero), but we don't exclude them
during the scheduling class transition phase.

Fix this by also skipping dead tasks during class swiching, preventing
invalid task state transitions.

Fixes: a8532fac7b ("sched_ext: TASK_DEAD tasks must be switched into SCX on ops_enable")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2025-08-11 06:56:37 -10:00
Mauro Carvalho Chehab
bc20c56e98 docs: changes: better document Python needs
Python is listed as an optional dependency, but this is not
true, as:

1) arm (multi_v7_defconfig and other defconfigs) and arm64 defconfig
   needs it due to DRM_MSM dependencies;

2) CONFIG_LTO_CLANG runs a python script at scripts/Makefile.vmlinux_o;

3) kernel-doc is called during compilation when some DRM options
   like CONFIG_DRM_I915_WERROR are enabled;

4) allyesconfig/allmodconfig will enable CONFIG_* dependencies
   that needs it;

5) besides DRM, other subsystems seem to have logic calling *.py
   scripts.

So, better document that and change the dependency from optional
to mandatory to reflect the current needs.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/b03b95b8d09358e81e4f27942839191f49b0ba80.1753806485.git.mchehab+huawei@kernel.org
2025-08-11 10:54:29 -06:00
Mauro Carvalho Chehab
fc973dcd73 docs: kernel-doc: avoid script crash on ancient Python
While we do need at least 3.6 for kernel-doc to work, and at least
3.7 for it to output functions and structs with parameters at the
right order, let the python binary be compatible with legacy
versions.

The rationale is that the Kernel build nowadays calls kernel-doc
with -none on some places. Better not to bail out when older
versions are found.

With that, potentially this will run with python 2.7 and 3.2+,
according with vermin:

	$ vermin --no-tips -v ./scripts/kernel-doc
	Detecting python files..
	Analyzing using 24 processes..
	2.7, 3.2     /new_devel/v4l/docs/scripts/kernel-doc
	Minimum required versions: 2.7, 3.2

3.2 minimal requirement is due to argparse.

The minimal version I could check was version 3.4
(using anaconda). Anaconda doesn't support 3.2 or 3.3
anymore, and 3.2 doesn't even compile (I tested compiling
Python 3.2 on Fedora 42 and on Fedora 32 - no show).

With 3.4, the script didn't crash and emitted the right warning:

	$ conda create -n py34 python=3.4
	$ conda activate py34
	python --version
        Python 3.4.5
        $ python ./scripts/kernel-doc --none include/media
	Error: Python 3.6 or later is required by kernel-doc
	$ conda deactivate

	$ python --version
	Python 3.13.5
        $ python ./scripts/kernel-doc --none include/media
	(no warnings and script ran properly)

Supporting 2.7 is out of scope, as it is EOL for 5 years, and
changing shebang to point to "python" instead of "python3"
would have a wider impact.

I did some extra checks about the differences from 3.2 and
3.4, and didn't find anything that would cause troubles:

	grep -rE "yield from|asyncio|pathlib|async|await|enum" scripts/kernel-doc

Also, it doesn't use "@" operator. So, I'm confident that it
should run (producing the exit warning) since Python 3.2.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/87d55e76b0b1391cb7a83e3e965dbddb83fa9786.1753806485.git.mchehab+huawei@kernel.org
2025-08-11 10:54:29 -06:00
Thomas Zimmermann
136c374d8c drm/sharp-memory: Do not access GEM-DMA vaddr directly
Use DRM's shadow-plane helper to map and access the GEM object's buffer
within kernel address space. Encapsulates the vmap logic in the GEM-DMA
helpers.

The sharp-memory driver currently reads the vaddr field from the GME
buffer object directly. This only works because GEM code 'automagically'
sets vaddr.

Shadow-plane helpers perform the same steps, but with correct abstraction
behind drm_gem_vmap(). The shadow-plane state provides the buffer address
in kernel address space and the format-conversion state.

v2:
- fix typo in commit description

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250627152327.8244-1-tzimmermann@suse.de
2025-08-11 18:49:55 +02:00
Thomas Zimmermann
c585c1b29a drm/repaper: Do not access GEM-DMA vaddr directly
Use DRM's shadow-plane helper to map and access the GEM object's buffer
within kernel address space. Encapsulates the vmap logic in the GEM-DMA
helpers.

The repaper driver currently reads the vaddr field from the GME buffer
object directly. This only works because GEM code 'automagically' sets
vaddr.

Shadow-plane helpers perform the same steps, but with correct abstraction
behind drm_gem_vmap(). The shadow-plane state provides the buffer address
in kernel address space and the format-conversion state.

v2:
- fix typo in commit description

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250627152422.8399-1-tzimmermann@suse.de
2025-08-11 18:49:05 +02:00
Antony Kurniawan Soemardi
45f5d1dc6f ARM: dts: qcom: msm8960: disable gsbi1 and gsbi5 nodes in msm8960 dtsi
Not all devices use gsbi1 and gsbi5, so these nodes should be disabled
in the SoC dtsi, following the existing pattern used for gsbi3. The
upstream samsung-expressatt and msm8960-cdp devices already have status
"okay" for these nodes, so this change should not break existing
functionality.

This eliminates the following error messages when gsbi nodes are not
configured in the board's device tree:
[    1.109723] gsbi 16000000.gsbi: missing mode configuration
[    1.109797] gsbi 16000000.gsbi: probe with driver gsbi failed with error -22

(Note: Xperia SP doesn't use gsbi5)

Signed-off-by: Antony Kurniawan Soemardi <linux@smankusors.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250623-msm8960-sdcard-v2-3-340a5e8f7df0@smankusors.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 11:46:27 -05:00
Antony Kurniawan Soemardi
12bf7cfb5a ARM: dts: qcom: msm8960: add gsbi8 and its serial configuration
The LTE variant of the MSM8960 SoC has a gsbi8 node used for the
serial console.

That's if the downstream kernel is to be believed, as Xperia SP has
a serial console on gsbi8 even on the non-LTE variant.

Signed-off-by: Antony Kurniawan Soemardi <linux@smankusors.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250623-msm8960-sdcard-v2-2-340a5e8f7df0@smankusors.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 11:46:27 -05:00
Antony Kurniawan Soemardi
b261da9e9e ARM: dts: qcom: msm8960: add sdcc3 pinctrl states
Adds sdcc3-default-state and sdcc3-sleep-state pinctrl states for
MSM8960. These are required for devices like Sony Xperia SP to ensure
micro SD card functionality, though they are a no-op on the Samsung
Galaxy Express.

Tested-by: Rudraksha Gupta <guptarud@gmail.com>
Signed-off-by: Antony Kurniawan Soemardi <linux@smankusors.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250623-msm8960-sdcard-v2-1-340a5e8f7df0@smankusors.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 11:46:27 -05:00
Matthew Auld
17593a69b7 drm/xe: rework PDE PAT index selection
For non-leaf paging structures we end up selecting a random index
between [0, 3], depending on the first user if the page-table is shared,
since non-leaf structures only have two bits in the HW for encoding the
PAT index, and here we are just passing along the full user provided
index, which can be an index as large as ~31 on xe2+. The user provided
index is meant for the leaf node, which maps the actual BO pages where
we have more PAT bits, and not the non-leaf nodes which are only mapping
other paging structures, and so only needs a minimal PAT index range.
Also the chosen index might need to consider how the driver mapped the
paging structures on the host side, like wc vs wb, which is separate
from the user provided index.

With that move the PDE PAT index selection under driver control. For now
just use a coherent index on platforms with page-tables that are cached
on host side, and incoherent otherwise. Using a coherent index could
potentially be expensive, and would be overkill if we know the page-table
is always uncached on host side.

v2 (Stuart):
  - Add some documentation and split into separate helper.

BSpec: 59510
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Stuart Summers <stuart.summers@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://lore.kernel.org/r/20250808103455.462424-2-matthew.auld@intel.com
2025-08-11 17:41:02 +01:00
Jonathan Corbet
7b41f6f937 Merge branch 'dump-struct' into docs-mw
In my ongoing effort to truly understand our new kernel-doc, I continue to
make changes to improve the code, and to try to make the understanding task
easier for the next person.  These patches focus on dump_struct() in
particular, which starts out at nearly 300 lines long - to much to fit into
my little brain anyway.  Hopefully the result is easier to manage.

There are no changes in the rendered docs.
2025-08-11 10:29:07 -06:00
Jonathan Corbet
e282303e71 docs: kdoc: a few final dump_struct() touches
Add a couple more comments so that each phase of the process is
now clearly marked.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-13-corbet@lwn.net
2025-08-11 10:25:43 -06:00
Jonathan Corbet
23c47b0931 docs: kdoc: extract output formatting from dump_struct()
The last thing done in dump_struct() is to format the structure for
printing.  That, too, is a separate activity; split it out into its own
function.

dump_struct() now fits in a single, full-hight editor screen.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-12-corbet@lwn.net
2025-08-11 10:25:43 -06:00
Jonathan Corbet
e6dd4e2a5c docs: kdoc: further rewrite_struct_members() cleanup
Get rid of some redundant checks, and generally tighten up the code; no
logical change.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-11-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
a8c4b0a8f1 docs: kdoc: Some rewrite_struct_members() commenting
Add comments to rewrite_struct_members() describing what it is actually
doing, and reformat/comment the main struct_members regex so that it is
(more) comprehensible to humans.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-10-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
fb20e61039 docs: kdoc: remove an extraneous strip() call
...the variable in question was already strip()ed at the top of the loop.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-9-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
f8208676c1 docs: kdoc: rework the rewrite_struct_members() main loop
Adopt a more Pythonic form for the main loop of this function, getting rid
of the "while True:" construction and making the actual loop invariant
explicit.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-8-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
77e3c875f0 docs: kdoc: split struct-member rewriting out of dump_struct()
The massive loop that massages struct members shares no data with the rest
of dump_struct(); split it out into its own function.  Code movement only,
no other changes.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-7-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
0f73441294 docs: kdoc: split top-level prototype parsing out of dump_struct()
Move the initial split of the prototype into its own function in the
ongoing effort to cut dump_struct() down to size.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-6-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
64cf83bcd3 docs: kdoc: move the prefix transforms out of dump_struct()
dump_struct is one of the longest functions in the kdoc_parser class,
making it hard to read and reason about.  Move the definition of the prefix
transformations out of the function, join them with the definition of
"attribute" (which was defined at the top of the file but only used here),
and reformat the code slightly for shorter line widths.

Just code movement in the end.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-5-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
5fd513f011 docs: kdoc: backslashectomy in kdoc_parser
A lot of the regular expressions in this file have extraneous backslashes
that may have been needed in Perl, but aren't helpful here.  Take them out
to reduce slightly the visual noise.

Escaping of (){}[] has been left in place, even when unnecessary, for
visual clarity.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-4-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
259feba4dd docs: kdoc: Move a regex line in dump_struct()
The complex struct_members regex was defined far from its use; bring the
two together.  Remove some extraneous backslashes while making the move.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-3-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Jonathan Corbet
6656ae4df1 docs: kdoc: consolidate the stripping of private struct/union members
There were two locations duplicating the logic of stripping private members
and associated comments; coalesce them into one, and add some comments
describing what's going on.

Output change: we now no longer add extraneous white space around macro
definitions.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250807211639.47286-2-corbet@lwn.net
2025-08-11 10:25:42 -06:00
Marko Mäkelä
2f7b168323 clk: qcom: gcc-ipq6018: rework nss_port5 clock to multiple conf
Rework nss_port5 to use the new multiple configuration implementation
and correctly fix the clocks for this port under some corner case.

In OpenWrt, this patch avoids intermittent dmesg errors of the form
nss_port5_rx_clk_src: rcg didn't update its configuration.

This is a mechanical, straightforward port of
commit e88f03230d
("clk: qcom: gcc-ipq8074: rework nss_port5/6 clock to multiple conf")
to gcc-ipq6018, with two conflicts resolved: different frequency of the
P_XO clock source, and only 5 Ethernet ports.

This was originally developed by JiaY-shi <shi05275@163.com>.

Link: https://lore.kernel.org/all/20231220221724.3822-4-ansuelsmth@gmail.com/
Signed-off-by: Marko Mäkelä <marko.makela@iki.fi>
Tested-by: Marko Mäkelä <marko.makela@iki.fi>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250802095546.295448-1-marko.makela@iki.fi
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 11:23:33 -05:00
Konrad Dybcio
6ef38b0c16 clk: qcom: Remove double-space after assignment operator
This is an oddly common hiccup across clk/qcom.. Remove it in hopes to
reduce spread through copy-paste.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Imran Shaik <quic_imrashai@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250802-topic-clk_qc_doublespace-v1-1-2cae59ba7d59@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 11:22:27 -05:00
Yijie Yang
60a63913fd firmware: qcom: scm: Allow QSEECOM on HAMOA-IOT-EVK
Add the Hamoa-IoT-EVK board to the list to enable access to EFI variables.

Signed-off-by: Yijie Yang <yijie.yang@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250804-hamoa_initial-v4-2-19edbb28677b@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 11:21:51 -05:00
Tang Yizhou
0452f08395 blk-wbt: doc: Update the doc of the wbt_lat_usec interface
The symbol wb_window_usec cannot be found. Update the doc to reflect the
latest implementation, in other words, the debugfs interface
'curr_win_nsec'.

Signed-off-by: Tang Yizhou <yizhou.tang@shopee.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20250727173959.160835-4-yizhou.tang@shopee.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-08-11 10:21:38 -06:00
Tang Yizhou
bccdfcd56d blk-wbt: Eliminate ambiguity in the comments of struct rq_wb
In the current implementation, the last_issue and last_comp members of
struct rq_wb are used only by read requests and not by non-throttled write
requests. Therefore, eliminate the ambiguity here.

Signed-off-by: Tang Yizhou <yizhou.tang@shopee.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20250727173959.160835-3-yizhou.tang@shopee.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-08-11 10:21:38 -06:00
Tang Yizhou
d8b96a7962 blk-wbt: Optimize wbt_done() for non-throttled writes
In the current implementation, the sync_cookie and last_cookie members of
struct rq_wb are used only by read requests and not by non-throttled write
requests. Based on this, we can optimize wbt_done() by removing one if
condition check for non-throttled write requests.

Signed-off-by: Tang Yizhou <yizhou.tang@shopee.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20250727173959.160835-2-yizhou.tang@shopee.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-08-11 10:21:38 -06:00
Gabor Juhos
6b7e2aa50b
spi: spi-qpic-snand: remove 'clr*status' members of struct 'qpic_ecc'
In the qcom_spi_ecc_init_ctx_pipelined() function, the 'clrflashstatus'
and the 'clrreadstatus' members of the ECC context gets initialized with
constant values. Then these values are used by several functions to set
the corresponding members in the register cache.

Because the values are never modified, change the code to set the those
directly in the register cache by the qcom_spi_ecc_init_ctx_pipelined()
function, and remove the repetitive code from the other functions to
reduce code duplication.

Also, remove the respective members from the 'qpic_ecc' structure as
those became unused due to the change.

No functional changes intended.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://patch.msgid.link/20250810-qpic-snand-qpic_ecc-cleanup-v1-2-33a6b2bcbc67@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-08-11 17:18:53 +01:00
Gabor Juhos
fbec18dc99
spi: spi-qpic-snand: remove unused 'dev' member of struct 'qpic_ecc'
The 'dev' member of the 'qpic_ecc' structure is never used in the
code so remove that.

No functional changes.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20250810-qpic-snand-qpic_ecc-cleanup-v1-1-33a6b2bcbc67@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-08-11 17:18:52 +01:00
Krzysztof Kozlowski
4b0ad96871
regulator: dt-bindings: infineon,ir38060: Add Guenter as maintainer from IBM
The infineon,ir38060 binding never got maintainer and fake "Not Me"
entry have been causing dt_binding_check warnings for 1.5 years now:

  regulator/infineon,ir38060.yaml: maintainers:0: 'Not Me.' does not match '@'

Guenter agreed to keep an eye for this hardware and binding.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Conor Dooley <conor.dooley@microchip.com>
Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
Cc: Ninad Palsule <ninad@linux.ibm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20250811141526.168752-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-08-11 17:15:16 +01:00
Tianjia Zhang
d4e8dc8e8b selinux: use a consistent method to get full socket from skb
In order to maintain code consistency and readability,
skb_to_full_sk() is used to get full socket from skb.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2025-08-11 11:59:11 -04:00
Yue Haibing
5f9383bd41 selinux: Remove unused function selinux_policycap_netif_wildcard()
This is unused since commit a3d3043ef2 ("selinux: get netif_wildcard
policycap from policy instead of cache").

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2025-08-11 11:59:11 -04:00
Waiman Long
dfb36e4a8d futex: Use user_write_access_begin/_end() in futex_put_value()
Commit cec199c5e3 ("futex: Implement FUTEX2_NUMA") introduced the
futex_put_value() helper to write a value to the given user
address.

However, it uses user_read_access_begin() before the write. For
architectures that differentiate between read and write accesses, like
PowerPC, futex_put_value() fails with -EFAULT.

Fix that by using the user_write_access_begin/user_write_access_end() pair
instead.

Fixes: cec199c5e3 ("futex: Implement FUTEX2_NUMA")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250811141147.322261-1-longman@redhat.com
2025-08-11 17:53:21 +02:00
Richard Guy Briggs
ce8370e2e6 audit: record fanotify event regardless of presence of rules
When no audit rules are in place, fanotify event results are
unconditionally dropped due to an explicit check for the existence of
any audit rules.  Given this is a report from another security
sub-system, allow it to be recorded regardless of the existence of any
audit rules.

To test, install and run the fapolicyd daemon with default config.  Then
as an unprivileged user, create and run a very simple binary that should
be denied.  Then check for an event with
	ausearch -m FANOTIFY -ts recent

Link: https://issues.redhat.com/browse/RHEL-9065
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2025-08-11 11:44:58 -04:00
Kieran Moy
df1145b56c audit: fix typo in auditfilter.c comment
Correct the misspelling of "searching" (was "serarching")
in the function documentation for audit_update_lsm_rules.

Found via code inspection, no functional impact.

Signed-off-by: Kieran Moy <kfatyuip@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2025-08-11 11:44:57 -04:00
Thorsten Blum
d8c09d7b55 audit: Replace deprecated strcpy() with strscpy()
strcpy() is deprecated; use strscpy() instead.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2025-08-11 11:44:55 -04:00
Casey Schaufler
c5055d0c8e audit: fix indentation in audit_log_exit()
Fix two indentation errors in audit_log_exit().

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
[PM: subject tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
2025-08-11 11:44:50 -04:00
Danilo Krummrich
f87d597e83 MAINTAINERS: entry for DRM GPUVM
GPUVM deserves a bit more coordination, also given the upcoming Rust
work for GPUVM, hence add a dedicated maintainers entry for DRM GPUVM.

Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250808092432.461250-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-08-11 17:33:05 +02:00
David Kaplan
4fa7d880ae x86/bugs: Select best SRSO mitigation
The SRSO bug can theoretically be used to conduct user->user or guest->guest
attacks and requires a mitigation (namely IBPB instead of SBPB on context
switch) for these.  So mark SRSO as being applicable to the user->user and
guest->guest attack vectors.

Additionally, SRSO supports multiple mitigations which mitigate different
potential attack vectors.  Some CPUs are also immune to SRSO from
certain attack vectors (like user->kernel).

Use the specific attack vectors requiring mitigation to select the best
SRSO mitigation to avoid unnecessary performance hits.

Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250721160310.1804203-1-david.kaplan@amd.com
2025-08-11 17:32:36 +02:00
Nitin Gote
5634c8cb29 iosys-map: Fix undefined behavior in iosys_map_clear()
The current iosys_map_clear() implementation reads the potentially
uninitialized 'is_iomem' boolean field to decide which union member
to clear. This causes undefined behavior when called on uninitialized
structures, as 'is_iomem' may contain garbage values like 0xFF.

UBSAN detects this as:
    UBSAN: invalid-load in include/linux/iosys-map.h:267
    load of value 255 is not a valid value for type '_Bool'

Fix by unconditionally clearing the entire structure with memset(),
eliminating the need to read uninitialized data and ensuring all
fields are set to known good values.

Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/14639
Fixes: 01fd30da04 ("dma-buf: Add struct dma-buf-map for storing struct dma_buf.vaddr_ptr")
Signed-off-by: Nitin Gote <nitin.r.gote@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250718105051.2709487-1-nitin.r.gote@intel.com
2025-08-11 17:26:38 +02:00
José Expósito
05663d88fd drm/tests: Fix drm_test_fb_xrgb8888_to_xrgb2101010() on big-endian
Fix failures on big-endian architectures on tests cases
single_pixel_source_buffer, single_pixel_clip_rectangle,
well_known_colors and destination_pitch.

Fixes: 15bda1f8de ("drm/tests: Add calls to drm_fb_blit() on supported format conversion tests")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250630090054.353246-2-jose.exposito89@gmail.com
2025-08-11 17:24:15 +02:00
José Expósito
d28b9d2925 drm/tests: Fix endian warning
When compiling with sparse enabled, this warning is thrown:

  warning: incorrect type in argument 2 (different base types)
     expected restricted __le32 const [usertype] *buf
     got unsigned int [usertype] *[assigned] buf

Add a cast to fix it.

Fixes: 4531143196 ("drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_xrgb2101010()")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250630090054.353246-1-jose.exposito89@gmail.com
2025-08-11 17:24:15 +02:00
Ruben Wauters
fb6c2d16a4 drm/gud: Remove unnecessary logging
The debug logging in gud_disconnect() adds zero detail and is
unnecessary, as it only prints the function name.

The same functionality can be achieved by using ftrace, and is
highlighted by checkpatch, stating the same.

This patch removes the debug log in the gud_disconnect() function.

Signed-off-by: Ruben Wauters <rubenru09@aol.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250721232210.12578-1-rubenru09@aol.com
2025-08-11 17:18:24 +02:00
Mukesh Ojha
3bf7097bfd soc: qcom: mdt_loader: Remove unused parameter
fw_name in qcom_mdt_bins_are_split() seems unused now, it may have
used in the past for logging it but due to code refactor this parameter
is unused now.

Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Reviewed-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250807074311.2381713-3-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 10:14:33 -05:00
Mukesh Ojha
0daf35da39 soc: qcom: mdt_loader: Remove pas id parameter
pas id is not used in qcom_mdt_load_no_init() and it should not
be used as it is non-PAS specific function and has no relation
to PAS specific mechanism.

Reviewed-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Acked-by: Jeff Johnson <jjohnson@kernel.org> # drivers/net/wireless/ath/ath12k/ahb.c
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250807074311.2381713-2-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-08-11 10:14:32 -05:00