Commit Graph

1444114 Commits

Author SHA1 Message Date
Manuel Ebner
94dfdf6a1b Documentation: bug-hunting.rst: fix grammar
Fix a grammar issue to improve readability

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260605190055.15921-2-manuelebner@mailbox.org>
2026-06-12 13:24:09 -06:00
Akiyoshi Kurita
b834977aba docs/ja_JP: translate submitting-patches.rst (interleaved-replies)
Translate the "Use trimmed interleaved replies in email discussions"
and "Don't get discouraged - or impatient" sections in
Documentation/translations/ja_JP/process/submitting-patches.rst.

Keep the wording close to the English text and wrap lines to match
the style used in the surrounding Japanese translation.

Signed-off-by: Akiyoshi Kurita <weibu@redadmin.org>
Acked-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260606035954.27605-1-weibu@redadmin.org>
2026-06-12 13:23:22 -06:00
Brigham Campbell
30708f0372 docs: Fix minor grammatical error
Fix minor grammatical error in the administration guide.

Signed-off-by: Brigham Campbell <me@brighamcampbell.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260609070618.12566-1-me@brighamcampbell.com>
2026-06-12 13:22:41 -06:00
Ethan Nelson-Moore
eb406b55d8 docs/{it_it,sp_SP,zh_CN,zh_TW}: update references to removed CONFIG_DEBUG_SLAB
CONFIG_DEBUG_SLAB was removed in commit 2a19be61a6 ("mm/slab: remove
CONFIG_SLAB from all Kconfig and Makefile"), but references to it
remained in documentation. The English documentation was updated to
refer to CONFIG_SLUB_DEBUG in commit 5969fbf302 ("docs:
submit-checklist: structure by category"), but these translations were
never similarly updated. Update them.

Discovered while searching for CONFIG_* symbols referenced in the
kernel but not defined in any Kconfig file.

Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260611010014.412841-1-enelsonmoore@gmail.com>
2026-06-12 13:21:15 -06:00
Manuel Ebner
120a64c802 Documentation: process: fix brackets
Fix missing ')' and needless ')'

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260611064311.117023-2-manuelebner@mailbox.org>
2026-06-12 13:19:44 -06:00
Manuel Ebner
b7851fa2c9 Documentation: arch: fix brackets
Add missing and remove needless parentheses, brackets and curly braces.
Fix typos.

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260612095432.177759-2-manuelebner@mailbox.org>
2026-06-12 13:16:01 -06:00
Jim Cromie
5c48ecedf7 docs/dyndbg: explain flags parse 1st
When writing queries to >control, flags are parsed 1st, since they are
the only required field, and they require specific compositions.  So
if the flags draw an error (on those specifics), then keyword errors
aren't reported.  This can be mildly confusing/annoying, so explain it
instead.

cc: linux-doc@vger.kernel.org
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260502-dyndbg-doc-v1-2-67cc4a93a77e@gmail.com>
2026-06-01 13:11:20 -06:00
Jim Cromie
c76934b3f4 docs/dyndbg: update examples \012 to \n
commit 47ea6f99d0 ("dyndbg: use ESCAPE_SPACE for cat control")
changed the control-file to display format strings with "\n" rather
than "\012".  Update the docs to match the new reality.

Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Tested-by: Louis Chauvet <louis.chauvet@bootlin.com>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260502-dyndbg-doc-v1-1-67cc4a93a77e@gmail.com>
2026-06-01 13:11:20 -06:00
Costa Shulyupin
3c2edee3a4 docs: kernel-parameters: Fix stale sticore file paths
Update file paths for sticore references that
became stale when drivers were reorganized:
- drivers/video/console/sticore.c -> drivers/video/

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531140541.4115641-1-costa.shul@redhat.com>
2026-06-01 13:07:56 -06:00
Costa Shulyupin
2d5e755b06 docs: real-time: Fix duplicated sched(7) text
The man page reference appeared twice - once as plain text and
once as a hyperlink. Remove the plain text duplicate.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531141823.4118954-1-costa.shul@redhat.com>
2026-06-01 13:05:55 -06:00
Costa Shulyupin
ef4c0f7aee docs: kgdb: Fix stale source file paths
Update two file paths that became stale when kgdb/kdb sources
were reorganized:
- kernel/debugger/debug_core.c -> kernel/debug/debug_core.c
- drivers/char/kdb_keyboard.c -> kernel/debug/kdb/kdb_keyboard.c

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531140207.4114764-1-costa.shul@redhat.com>
2026-06-01 13:04:21 -06:00
Costa Shulyupin
11d309f633 docs: sonypi: Fix stale header file path
The sonypi.h header was moved from drivers/char/ to
include/linux/. Update the reference.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531135850.4113774-1-costa.shul@redhat.com>
2026-06-01 13:02:20 -06:00
Costa Shulyupin
d50ff037a1 docs: kernel-parameters: Remove sa1100ir IrDA parameter
The sa1100ir parameter referenced drivers/net/irda/sa1100_ir.c,
which was removed along with the entire IrDA stack in commit d64c2a7612
("staging: irda: remove the irda network stack and drivers").

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531135455.4113157-1-costa.shul@redhat.com>
2026-06-01 12:58:43 -06:00
Randy Dunlap
a41ac48a16 iommu: Documentation: rearrange, update kernel-parameters
Add text for some undescribed iommu= parameters (merge, nomerge,
biomerge, panic, nopanic, pt, nopt). Add "usedac" and its description.
Add that iommu=pt is equivalent to iommu.passthrough=1
and that iommu=nopt is equivalent to iommu.passthrough=0.

Move the PPC/POWERNV heading & its option "nobypass" to a separate
area since the current "iommu=" applies only to X86 (according to
its heading).

Unindent the AMD GART IOMMU options heading to make it stand out.
Also add its kconfig symbol name to be explicit about what these
options apply to.

Make sure that the IOMMU options that are listed under AMD Gart
HW IOMMU-specific options are only for that product; i.e., add "force"
there and move "merge", "nomerge", and "panic" to the general IOMMU
options area.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260528054611.1524937-1-rdunlap@infradead.org>
2026-06-01 12:57:14 -06:00
Miguel Martín Gil
af794e79d8 docs: md: fix grammar in speed_limit description
Replace 'This are' with 'These are' in the md sysfs speed limit
section to correct grammar and improve readability.

Signed-off-by: Miguel Martín Gil <miguel.martin.gil.uni@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260525214554.2196-1-miguel.martin.gil.uni@gmail.com>
2026-06-01 12:51:26 -06:00
Zhan Xusheng
2c1ccd9a1d docs: changes.rst: restore pahole 1.26 minimum (regressed by sort)
Commit 9edd04c418 ("docs: Raise minimum pahole version to 1.26 for
KF_IMPLICIT_ARGS kfuncs") raised the minimum required pahole version
from 1.22 to 1.26 in the requirements table and added a paragraph
explaining the failure mode for distributions still shipping pahole
v1.25 (e.g. Ubuntu 24.04 LTS).

The next day, commit ece7e57afd ("docs: changes.rst and ver_linux:
sort the lists") came through a different tree (docs vs sched_ext) and
re-flowed the table alphabetically, but its base did not include
9edd04c418.  When the two commits met in mainline, the textual rewrite
of the table won and the version bump was lost.  The added "Since Linux
7.0..." paragraph also disappeared.

The result is that changes.rst on master (v7.1-rc5) lists pahole 1.22
again, even though sched_ext kfuncs annotated with KF_IMPLICIT_ARGS
genuinely require v1.26 to produce a correct vmlinux BTF.  Users on
distributions with pahole v1.25 hit "func_proto incompatible with
vmlinux" when loading any sched_ext BPF program (scx_simple,
scx_qmap, ...) and have no documentation pointing them at the version
gap.

Restore both changes from 9edd04c418.

Fixes: ece7e57afd ("docs: changes.rst and ver_linux: sort the lists")
Signed-off-by: Zhan Xusheng <zhanxusheng@xiaomi.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260526022033.1301884-1-zhanxusheng@xiaomi.com>
2026-06-01 12:50:30 -06:00
Uwe Kleine-König
323fa4b960 Documentation: Fix syntax of kmalloc_objs example in coding style doc
The first parameter should match the variable that the allocated memory
is assigned to. Fix the example accordingly, the one for kmalloc_obj got
it right already.

Fixes: 7c6d969d53 ("Documentation: adopt new coding style of type-aware kmalloc-family")
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260529081006.2019687-2-ukleinek@kernel.org>
2026-06-01 12:48:20 -06:00
Amanda Corrêa
344cc3d794 docs: pt_BR: update maintainer-handbooks
Update the content of the maintainer-handbooks documentation
to Brazilian Portuguese.

Signed-off-by: Amanda Corrêa <amandacorreasilvax@gmail.com>
Acked-by: Daniel Pereira <danielmaraboo@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260528041958.57231-1-amandacorreasilvax@gmail.com>
2026-06-01 12:46:39 -06:00
Daniel Pereira
73cfdd6800 docs: pt_BR: add translation for kernel development process guides
Add the Brazilian Portuguese (pt_BR) translation for the
'development-process.rst' and '2.process.rst' files under
the 'process/' directory.

The main 'index.rst' file is also updated to include references
to the newly translated documents in the toctree.

Signed-off-by: Daniel Pereira <danielmaraboo@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260527155350.202569-1-danielmaraboo@gmail.com>
2026-06-01 12:43:12 -06:00
Costa Shulyupin
d7391997ea docs: sysctl/net: Remove ax25, netrom, rose entries
These networking subsystems were removed in commit dd8d4bc28a
("net: remove ax25 and amateur radio (hamradio) subsystem"),
but the sysctl directory table still listed them.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260515180200.1490926-1-costa.shul@redhat.com>
2026-05-25 14:31:44 -06:00
Daniel Pereira
1af866584f docs: pt_BR: update minimal software requirements in changes.rst
Update the Brazilian Portuguese translation of changes.rst to align with
the latest English version.

Key changes include:
- Updated minimum versions for Rust (1.85.0), bindgen (0.71.1), and
  pahole (1.22).
- Fixed ReST syntax for internal references (:ref:) and external links.
- Corrected formatting for tool names and config options using inline
  code backticks.
- Synchronized technical descriptions for udev, kmod, and NFS-utils.

v2:
- Fix alignment in the minimal software requirements table that broke the build.
- Fix Sphinx footnote syntax.

Signed-off-by: Daniel Pereira <danielmaraboo@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260515182200.654324-1-danielmaraboo@gmail.com>
2026-05-25 14:29:44 -06:00
Akiyoshi Kurita
04dba9d9b2 docs/ja_JP: translate more of submitting-patches.rst (no-mime)
Translate the "No MIME, no links, no compression, no attachments.
Just plain text" and "Respond to review comments" sections in
Documentation/translations/ja_JP/process/submitting-patches.rst.

Keep the wording close to the English text and wrap lines to match
the style used in the surrounding Japanese translation.

Signed-off-by: Akiyoshi Kurita <weibu@redadmin.org>
Acked-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260513131111.432772-1-weibu@redadmin.org>
2026-05-25 14:29:01 -06:00
Mauro Carvalho Chehab
ff8b091864 docs: maintainers_include: keep the last entry at the end
The last maintainer's entry ("THE REST") is meant to be at the
end. Ensure that.

While here, use a case-insensitive sort to avoid placing "iSCSI"
near the end.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <b4f45565eff4ba6f01e84a6877813038a23ba83b.1778952682.git.mchehab+huawei@kernel.org>
2026-05-25 14:24:09 -06:00
Mauro Carvalho Chehab
0b740ec538 docs: maintainers_include: restore compatibility with Python 3.6
glob root_dir parameter requires Python 3.10, which is more than
our current Python minimal requirement.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <930036c189414f3f7096c22269687489f8566dd9.1778952682.git.mchehab+huawei@kernel.org>
2026-05-25 14:24:09 -06:00
Sakurai Shun
f69322f8f8 docs: fix typo in user_mode_linux_howto_v2.rst
Replace "privilges" with "privileges"

Signed-off-by: Sakurai Shun <ssh1326@icloud.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260517022456.5895-1-ssh1326@icloud.com>
2026-05-25 14:22:46 -06:00
Sakurai Shun
8a61b8a71e docs: fix typo in leds-lp55xx.rst
Replace "regsister" with "register"

Signed-off-by: Sakurai Shun <ssh1326@icloud.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260517043303.17111-1-ssh1326@icloud.com>
2026-05-25 14:20:02 -06:00
Baruch Siach
89f332c1ef docs: threat-model: add missing closing parenthesis
Fixes: a03ef333fb ("Documentation: security-bugs: explain what is and is not a security bug")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <da8ee1e8b4e99261ec11544c4e1a4f81316ae965.1779032501.git.baruch@tkos.co.il>
2026-05-25 14:17:45 -06:00
Daniel Pereira
a0a6aa2f64 docs: pt_BR: Translate process/kernel-docs.rst into Portuguese
Translate Documentation/process/kernel-docs.rst into Portuguese (pt_BR)
and update the main index.

The content was adapted following the RST formatting rules and the
appropriate technical terminology for Brazilian Portuguese.

Signed-off-by: Daniel Pereira <danielmaraboo@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260519140035.1031694-1-danielmaraboo@gmail.com>
2026-05-25 14:10:44 -06:00
Krzysztof Kozlowski
48c3876a6a docs: submitting-patches: Clarify that "reviewer" is a person
Common understanding of word "Reviewer" is: a person performing a review
work [1]. Tools are not persons, thus cannot be reviewers in this term.
Also tools cannot make statements and cannot take responsibility for the
review.

Our docs already clearly mark that "Reviewed-by" must come from a
person:

 - "By offering my Reviewed-by: tag, I state that:"

   Usage of first person "I" and word "state"

 - "A Reviewed-by tag is *a statement of opinion* that the patch is an
    appropriate modification of the kernel without any remaining serious"

   Only a person can make a statement of opinion.

 - "Any interested reviewer (who has done the work) can offer a
   Reviewed-by"

   A person can offer a tag thus above does not grant the tool
   permission to offer a tag.

However this might not be enough, so let's clarify that only a person
with a known identity can state the "Reviewer's statement of oversight".

Link: https://en.wiktionary.org/wiki/reviewer [1]
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260520154846.162170-2-krzysztof.kozlowski@oss.qualcomm.com>
2026-05-25 14:04:30 -06:00
Cheng-Han Wu
e27108800b docs: admin-guide: add IGNORE_DIRS example for cscope
The workload tracing guide shows how to build a cscope database by
running cscope command directly. The kernel build system also provides
a cscope target, which supports IGNORE_DIRS for excluding directories
from the generated database.

Mention make cscope and show how to exclude Documentation/ as an example.

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-5-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Cheng-Han Wu
7fb658ede0 docs: admin-guide: clarify perf bench all behavior
The workload tracing guide lists a fixed set of benchmarks for
"perf bench all". This list is stale and can become outdated when
perf adds, removes, or renames benchmark collections or individual
benchmarks.

Describe "perf bench all" as running all available benchmarks in the perf
bench framework instead. Also document how to list the collections and
benchmarks available on a given system.

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-4-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Cheng-Han Wu
6e13c0aac6 docs: admin-guide: fix stress-ng command examples
The workload tracing guide includes stress-ng command examples with a
stray "command." word at the end. This makes the examples invalid if they
are copied and run directly.

Remove the stray word from the stress-ng example. Also use "--" in the
perf record example to clearly separate perf record options from the
workload command being recorded.

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-3-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Cheng-Han Wu
d848b1b099 docs: admin-guide: fix typos in workload tracing guide
Fix several typos in the workload tracing guide:

  - sys_opennat() -> sys_openat()
  - annotate the to view -> annotate the output to view
  - sys_getegid -> sys_getegid()

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-2-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Chao Gao
61579def4e Documentation: core-api/cpu_hotplug: Remove stale cpu0_hotplug docs
Commit e59e74dc48 ("x86/topology: Remove CPU0 hotplug option")
removed the 'cpu0_hotplug' option, but its documentation remained in
cpu_hotplug.rst. Remove the stale entry.

Reported-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Chao Gao <chao.gao@intel.com>
Message-ID: <20260507134732.254617-1-chao.gao@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2026-05-15 08:44:24 -06:00
Shuicheng Lin
46d9c16115 scripts/kernel-doc: Detect mismatched inline member documentation tags
Add validation in check_sections() to verify that inline member
documentation tags (/** @member: description */) match actual struct/union
member names. Previously, kernel-doc only validated section headers against
the parameter list, but inline doc tags stored in parameterdescs were never
cross-checked, allowing stale or mistyped member names to go undetected.

The new check iterates over parameterdescs keys and warns about any that
don't appear in the parameter list, catching issues like renamed struct
members where the documentation tag was not updated to match.

This catches real issues such as:
  - xe_bo_types.h: @atomic_access (missing struct prefix, should be
    @attr.atomic_access)
  - xe_device_types.h: @usm.asid (member is actually asid_to_vm)

While at it, fix two long-standing issues with named variadic parameters
(macros like ``#define foo(fmt, args...)``) that the new check exposed:

  1. A description provided via the ``@args...:`` doc form was stored
     in parameterdescs under the unstripped key ``args...``, while
     push_parameter() stripped the trailing ``...`` and only added
     ``args`` to parameterlist.  As a result the user-supplied
     description was orphaned, parameterdescs[``args``] was auto-
     populated with the generic "variable arguments" text, and the
     user's actual description was silently discarded by the output
     stage.  Migrate the description from the unstripped to the
     stripped key inside push_parameter() so the user's text reaches
     the output and the new check does not flag the orphaned key.

  2. push_parameter() always auto-populated parameterdescs[param] with
     "variable arguments" for variadic parameters, which bypassed the
     existing "parameter not described" warning at line 549.  As a
     consequence, a named variadic with no matching ``@<name>:`` doc
     tag (or a mistyped one such as ``@args:`` for a parameter named
     ``arg``) went undetected.  Emit the standard "not described"
     warning for named variadics before applying the auto-fill, so
     missing or mistyped variadic docs are reported just like missing
     docs for any other parameter.  The bare ``@...:`` form is
     unaffected because it has no natural name for the user to
     document.

This second hunk surfaces one real pre-existing documentation gap in
include/linux/hashtable.h: hash_for_each_possible_rcu()'s ``cond...``
parameter has no matching ``@cond:`` doc entry.  No false positives were
observed across include/linux, kernel/, or drivers/gpu/drm.

v2: Skip variadic parameters whose documented key ends with ``...`` and
    whose stripped name is in parameterlist, to avoid false-positive
    "Excess function parameter 'args...'" warnings on macros like
    ``#define foo(fmt, args...)`` documented with ``@args...:``.

v3: The v2 special case in check_sections() only suppressed the warning
    while still letting the user's description be silently dropped from
    the generated output.  Replace it with a fix in push_parameter() that
    migrates the description from ``args...`` to ``args`` when the name
    is stripped, so the user's text is preserved end-to-end and the
    new excess-parameter check naturally finds nothing to flag.

v4: Also emit the standard "parameter not described" warning for named
    variadics that have no matching ``@<name>:`` doc tag.  Previously
    push_parameter()'s unconditional auto-fill bypassed that warning,
    so a missing or mistyped variadic doc went undetected. (Randy)

Assisted-by: Claude:claude-opus-4.6
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260507023232.4108680-1-shuicheng.lin@intel.com>
2026-05-15 08:34:13 -06:00
Jinjie Ruan
f5899ff9c4 docs: Update nosmt support for arm64
commit eed4583bcf ("arm64: Kconfig: Enable HOTPLUG_SMT") enable
HOTPLUG_SMT for SMT control for arm64, but the documentation was
not updated accordingly to reflect that ARM64 now supports control SMT
via boot parameter and sysfs knobs:

1. Boot parameters:

nosmt:          Disable SMT, can be enabled via sysfs knobs.
nosmt=force:    Disable SMT, cannot be enabled via sysfs knobs.

2. Runtime sysfs controls:

Write "on", "off", "forceoff" or the number of SMT threads (1, 2, ...)
to /sys/devices/system/cpu/smt/control.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260417032540.3720627-1-ruanjinjie@huawei.com>
2026-05-15 08:26:31 -06:00
Costa Shulyupin
696ce7ca20 docs: housekeeping: Fix struct member access in code example
No such array housekeeping_cpumasks

Fix to housekeeping.cpumasks.

Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260501043855.980567-1-costa.shul@redhat.com>
2026-05-15 08:25:16 -06:00
Costa Shulyupin
c8ebfd4436 docs: locking: Fix stale dquot.c path
The quota code was moved from fs/dquot.c to fs/quota/dquot.c
in commit 884d179dff ("quota: Move quota files into separate
directory"). Update the reference.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503160221.1594319-2-costa.shul@redhat.com>
2026-05-15 08:24:22 -06:00
Daniel Pereira
5349712418 docs: pt_BR: translate process/license-rules.rst
Translate the license-rules.rst document into Brazilian Portuguese.
This document provides guidelines on how licenses should be identified
and handled within the kernel source code.

Additionally, update the pt_BR/process/index.rst to include the new
translation in the documentation tree.

Signed-off-by: Daniel Pereira <danielmaraboo@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503160352.160135-1-danielmaraboo@gmail.com>
2026-05-15 08:22:44 -06:00
Randy Dunlap
026d7010f1 kdoc: xforms: move context attrs to function_xforms list
The context analysis macros are function attributes that should be
in the function_xforms list. Somewhere along the way they were
inserted into the struct_xforms list instead. This causes docs build
warnings to continue to be emitted for context macros.

Move the context analysis macros to the function_xforms list where
they should be to eliminate these warnings.

Documentation/core-api/kref:328: ../include/linux/kref.h:72: WARNING: Invalid C declaration: Expected end of definition. [error at 96]
  int kref_put_mutex (struct kref *kref, void (*release)(struct kref *kref), struct mutex *mutex) __cond_acquires(true# mutex)
Documentation/core-api/kref:328: ../include/linux/kref.h:94: WARNING: Invalid C declaration: Expected end of definition. [error at 92]
  int kref_put_lock (struct kref *kref, void (*release)(struct kref *kref), spinlock_t *lock) __cond_acquires(true# lock)

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260505221548.163751-1-rdunlap@infradead.org>
2026-05-15 08:15:54 -06:00
Tudor Ambarus
8bf5a177c3 docs: kernel-doc: python: strip __counted_by_ptr macro
The `__counted_by_ptr` macro was recently introduced [1] to extend
bounds checking semantics to standard dynamically allocated pointers.

However, the new Python implementation of kernel-doc does not currently
recognize it as a compiler attribute. When kernel-doc encounters a
struct member annotated with this macro, it fails to parse the variable
name correctly, resulting in false-positive warnings like:

  Warning: ... struct member '__counted_by_ptr(cmdcnt' not described

Add `__counted_by_ptr` to the `struct_xforms` regex list so it gets
safely stripped out during the parsing phase, mirroring the existing
behavior for `__counted_by`. Update the corresponding unit tests.

Link: https://git.kernel.org/torvalds/c/150a04d817d8 [1]
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Kees Cook <kees@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260506-kdoc-__counted_by_ptr-v1-1-70763486871f@linaro.org>
2026-05-15 08:11:36 -06:00
Mayank Gite
8b9bff97df Documentation: fix typo and formattting in security/credentials.rst
- Fixes a typo in "Keys and keyrings" section. Replaces "keying" with
  "keyring".
- Updates formatting of keyring types.

Signed-off-by: Mayank Gite <drapl0n.kernel@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260506225925.271163-1-drapl0n.kernel@gmail.com>
2026-05-15 08:09:46 -06:00
Jonathan Corbet
5677cae653 Merge branch 'mauro' into docs-mw
This series improve the output at process/maintainers: instead of a
pure enriched text, the maintainer's file content is now converted
to a table, and has gained a javascript to allow filtering entries.

The initial patches change the logic to split parsing from
output generation. Then, everything is stored into a dict at
the parsing phase, and ona header description variable.

This way, it is easier to adjust the output handler to produce
a more structured document. Right now, the entries are sorted
alphabetically, per subsystem's name(*).

(*) Currently, MAINTAINERS file has several entries not sorted.
    One has to run:

	 scripts/parse-maintainers.pl --input MAINTAINERS --output MAINTAINERS.new

    to sort it.
2026-05-15 08:06:56 -06:00
Mauro Carvalho Chehab
09958f69fa MAINTAINERS: use a URL for pin-init maintainer's profile entry
This maintainer's entry is not inside documentation nor is
ReST, preventing Sphinx to create a hyperlink to it.

Change it to point to the already-formatted URL.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <1bceee886b9027d66bbb48d9d6c8d1250ce8dbcb.1777987028.git.mchehab+huawei@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <59144e7323b95166e61a7c7f84096a0b9bb5d26e.1778309595.git.mchehab+huawei@kernel.org>
2026-05-15 08:01:48 -06:00
Mauro Carvalho Chehab
446c78d6ab MAINTAINERS: make clearer about what's expected for "P" field
The "P" field is meant to point to a subsystem maintainer's
profile, stored either at the Kernel documentation or on an
external site. Make it clearer.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <921e5e6a074f9d8cf77483d73e6801f49254bbb8.1777987027.git.mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <21e6def8b69bac36795dcd4047d663bb31407dcb.1778309595.git.mchehab+huawei@kernel.org>
2026-05-15 08:01:48 -06:00
Mauro Carvalho Chehab
d5ab486874 docs: maintainers_include: better handle doc wildcards
As warned by sashiko-bot, the new logic doesn't handle wildcards
on Documentation/.

Change the logic to properly handle it, cleaning up the code
to remove some code duplication.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <eb575072d60c20243afee6f94ef71427ef7b2e79.1778309595.git.mchehab+huawei@kernel.org>
2026-05-15 08:01:48 -06:00
Mauro Carvalho Chehab
84a9658e84 docs: maintainers_include: better handle directories
The TOC tree needs to use paths relative to the document containing
the maintainers-profile-toc directive. Fix it.

While here, address a warning from sashiko-bot, which points
that using partition can be problematic if the root Linux path
ends being something like:

    foo/Documentation/linux/

causing the documentation dir to be at:

    foo/Documentation/linux/Documentation

Very unlikely, but fixing it is trivial: just use regex to
pick the last one.

Notice that I dropped the comment about using os.fspath() as
the logic already uses os.path.abspath() which should work
equally well.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <2b07e12eaa07bf81824ad427335783b170e01dba.1778309595.git.mchehab+huawei@kernel.org>
2026-05-15 08:01:48 -06:00
Mauro Carvalho Chehab
247cb381a5 docs: maintainers_include: don't ignore invalid profile entries
Currently, there is a "P" entry for Rust pin-init that is
neither a valid ReST file inside Documentation nor an URL.

A proper fix is to either convert/move the file or point to
a URL. Yet, the parser should be able to pick what's there and
show on its output.

Add a logic to produce a warning when this happens.

Message-ID: <63228e005fcf3dc4583cee06905341e8bce84181.1777987027.git.mchehab+huawei@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <98915f35442fa12c6d59611083aea3adbf8c6aff.1778309595.git.mchehab+huawei@kernel.org>
2026-05-15 08:01:48 -06:00
Mauro Carvalho Chehab
11bb115dd5 docs: maintainers_include: add a filtering javascript
The maintainers table is big. Add a javascript to allow filtering
it. Such script is only added at the page which contains the
maintainers-include tag.

I opted to keep the search case-sensitive, as, this way,
upper case searches at subsystem.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <c435ef150f5d6ed16570969f43d92ba6fb857842.1777987027.git.mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <6f87c233351595358fddba11d42171be464f0a65.1778309595.git.mchehab+huawei@kernel.org>
2026-05-15 08:01:48 -06:00
Mauro Carvalho Chehab
083f0b10f5 docs: maintainers_include: properly handle file patterns
handling asterisks inside file patterns atdescription part is
problematic, as ReST has special meaning for them. Due to
that, convert such patterns to literal strings.

Reported-by: Matteo Croce <teknoraver@meta.com>
Fixes: 420849332f ("get_maintainer: add ** glob pattern support")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <89127706fb3493d00ecb21e528c8a27081e5ed40.1777987027.git.mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <abd5112fea4dd480f5e72ba46fe60c2463862829.1778309595.git.mchehab+huawei@kernel.org>
2026-05-15 08:01:48 -06:00