100 Commits
Author SHA1 Message Date
Jonathan Corbet 330367bdc1 Merge branch 'mauro' into docs-mw
Mauro's work to include documentation from our Python modules.  His cover
letter follows:

This is an extended version of:
    https://lore.kernel.org/linux-doc/cover.1768488832.git.mchehab+huawei@kernel.org/

It basically adds everything we currently have inside libs/tool/python
to "tools" book inside documentation.

This version should be independent of the other series yet to be merged,
(including the jobserver one).

The vast amount of changes here are docstring cleanups and additions.
They mainly consists on:

- ensuring that every phrase will end with a period, making it uniform
  along all files;
- cleaning ups to better uniform docstrings;
- variable descriptions now use "#:" markup, as it allows autodoc to
  add them inside the documentation;
- added some missing docstrings;
- some new blank lines at comments to make ReST syntax parser happy;
- add a couple of sphinx markups (mainly, code blocks).

Most of those are minor changes, affecting only comments.

It also has one patch per libarary type, adding them to docs.

For kernel-doc, I did the cleanups first, as there is one code block
inside tools/lib/python/kdoc/latex_fonts.py that would cause a Sphinx
crash without such markups.

The series actually starts with 3 fixes:

- avoid "*" markups on indexes with deep> 3 to override text
- a variable rename to stop abusing doctree name
- don't rely on cwd to get Documentation/ location

patch 4 adds support to document scripts either at:
    - tools/
    - scripts/

patch 5 contains a CSS to better display autodoc html output.

For those who want to play with documentation, documenting a python
file is very simple. All it takes is to use:

    .. automodule:: lib.python.<dir+name>

Usually, we add a couple of control members to it to adjust
the desired documentation scope (add/remove members, showing class
inheritance, showing members that currently don't have
docstrings, etc). That's why we're using:

    .. automodule:: lib.python.kdoc.enrich_formatter
       :members:
       :show-inheritance:
       :undoc-members:

(and similar) inside tools/kdoc*.rst.

autodoc allows filtering in/out members, file docstrings, etc.

It also allows documenting just some members or functions with
directives like:

    ..autofunction:
    ..automember:

Sphinx also has a helper script to generate .rst files with
documentation:

    $ sphinx-apidoc -o foobar tools/lib/python/

which can be helpful to discover what should be documented,
although changes are needed to use what it produces.
2026-01-23 11:46:08 -07:00
Jonathan Corbet 11ba4215d0 Merge branch 'mauro' into docs-mw
A combination of Mauro's -Werror work and my long-belated kernel-doc move.
2026-01-20 16:13:23 -07:00
Jonathan Corbet b2664a90c1 jobserver: Split up the big try: block
The parsing of jobserver options is done in a massive try: block that hides
problems and (perhaps) bugs.  Split up that block and make the logic
explicit by moving the initial parsing of MAKEFLAGS out of that block.  Add
warnings in the places things can go wrong.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2026-01-20 16:12:27 -07:00
Jonathan Corbet a9e732c12d docs: add a scripts/kernel-doc symbolic link
Some folks evidently have muscle memory expecting kernel-doc to be under
scripts/.  Now that we have moved it to tools/docs, leave behind a symbolic
link to reduce the global profanity count.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2026-01-20 15:57:06 -07:00
Jonathan Corbet 4a3efd128f docs: sphinx-build-wrapper: stop setting kerneldoc_bin for Sphinx
Now that the Sphinx build does not use the kerneldoc_bin configuration
variable, we shouldn't try to set it in the build wrapper or we get a nifty
warning:

  WARNING: unknown config value 'kerneldoc_bin' in override, ignoring

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2026-01-20 15:50:38 -07:00
Jonathan Corbet eba6ffd126 docs: kdoc: move kernel-doc to tools/docs
kernel-doc is the last documentation-related tool still living outside of
the tools/docs directory; the time has come to move it over.

[mchehab: fixed kdoc lib location]

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <311d17e403524349940a8b12de6b5e91e554b1f4.1768823489.git.mchehab+huawei@kernel.org>
2026-01-20 15:31:06 -07:00
Jonathan Corbet 24f984aa11 docs: kdoc: remove support for an external kernel-doc from sphinx
The ability to build the docs with an external kernel-doc program involves
some truly confusing logic and complicates the task of moving kernel-doc
out of scripts/.  But this feature is not useful for normal documentation
builds, and the external kernel-doc can always be run by hand when it needs
debugging.  So just remove that feature and make life easier.

There is still a bunch of logic to build a command line that we never use;
the idea is to be able to output it, but I'm not sure if that is worth
keeping.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <a97a8361546648906344457a7e92e4db533048a9.1768823489.git.mchehab+huawei@kernel.org>
2026-01-20 15:31:06 -07:00
Jonathan Corbet d07e0857dc Merge branch 'mauro-vars' into docs-mw
Mauro says:

As suggested and discussed with Randy, this small series add support
for documenting variables using kernel-doc.

- patch 1: add support for the new feature;
- patch 2: extends to support DEFINE_*;
- patch 3: document two media vars;
- patch 4: fix an issue on kernel-doc.rst markups and automarkup;
- patch 5: document it;
- patch 6: better handle DEFINE_ macros when they don't have static/type;

Since version 5, I'm using "c:macro" to describe variables, as it
avoids Sphinx C domain to try parse the variable. This makes it more
flexible and easier to maintain in long term.
2025-12-22 14:52:57 -07:00
Jonathan Corbet 0dd5cf95b7 Merge tag 'Chinese-docs-6.19' of gitolite.kernel.org:pub/scm/linux/kernel/git/alexs/linux into tmp
Chinese translation docs for 6.19

This is the Chinese translation subtree for 6.19. It includes
the following changes:
        - Add block part translations
        - Update kbuild.rst translations
        - Add more scsi translations and fixes

Above patches are tested by 'make htmldocs'

Signed-off-by: Alex Shi <alexs@kernel.org>
2025-11-29 08:09:58 -07:00
Jonathan Corbet d879c2e019 Merge branch 'mauro' into docs-mw
Mauro says:

That's the final series to complete the migration of documentation
build: it converts get_feat from Perl to Python.

V2 is technically identical to v1: the only difference is that it
now uses tools/lib/python/feat to store the library logic.

With that, no Sphinx in-kernel extensions use fork anymore to call
ancillary scripts: everything is now importing Python methods
directly from the libraries.

There's nothing special on this conversion: it is a direct translation,
almost bug-compatible with the original version (*).

(*) I did solve two or three caveats on patch 1.

Most of the complexity of the script relies at the logic to produce
ReST tables. I do have here on my internal scripts a (somewhat) generic
formatter for ReST tables in Python. I was tempted to convert the logic
to use it, but, as this could cause regressions, I opted to not do it
right now, mainly because the matrix table logic is complex. Also,
I'm tempted to modify a little bit the output there, but extra tests
are required to see if PDF output would work with complex tables (I
remember I had a problem with that in the past). So, I'm postponing
such extra cleanup.
2025-11-21 10:45:32 -07:00
Jonathan Corbet 34a28245b6 Merge branch 'python-modules' into docs-mw
scripts/lib was always a bit of an awkward place for Python libraries; give
them a proper home under tools/lib/python.  Put the modules from
tools/docs/lib there for good measure.

The second patch ties them into a single package namespace.  It would be
more aesthetically pleasing to add a kernel layer, so we could say:

  from kernel.kdoc import kdoc_parser

...and have the kernel-specific stuff clearly marked, but that means adding
an empty directory in the hierarchy, which isn't as pleasing.

There are some other "Python library" directories hidden in the kernel
tree; we may eventually want to encourage them to move as well.
2025-11-18 09:26:11 -07:00
Jonathan Corbet 992a9df41a docs: bring some order to our Python module hierarchy
Now that we have tools/lib/python for our Python modules, turn them into
proper packages with a single namespace so that everything can just use
tools/lib/python in sys.path.  No functional change.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251110220430.726665-3-corbet@lwn.net>
2025-11-18 09:22:40 -07:00
Jonathan Corbet 778b8ebe51 docs: Move the python libraries to tools/lib/python
"scripts/lib" was always a bit of an awkward place for Python modules.  We
already have tools/lib; create a tools/lib/python, move the libraries
there, and update the users accordingly.

While at it, move the contents of tools/docs/lib.  Rather than make another
directory, just put these documentation-oriented modules under "kdoc".

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251110220430.726665-2-corbet@lwn.net>
2025-11-18 09:22:40 -07:00
Jonathan Corbet 77a22121fe Merge branch 'tools-final2' into docs-mw
Our documentation-related tools are spread out over various directories;
several are buried in the scripts/ dumping ground.  That makes them harder
to discover and harder to maintain.

Recent work has started accumulating our documentation-related tools in
/tools/docs.  This series nearly completes that task, moving most of the
rest of our various utilities there, hopefully fixing up all of the
relevant references in the process.

The one exception is scripts/kernel-doc; that move turned up some other
problems, so I have dropped it until those are ironed out.

At the end, rather than move the old, Perl kernel-doc, I simply removed it.
2025-11-03 16:25:22 -07:00
Jonathan Corbet 5d75e45518 Merge tag 'Chinese-docs-6.18' of gitolite.kernel.org:pub/scm/linux/kernel/git/alexs/linux into alex
Chinese translation docs for 6.18

This is the Chinese translation subtree for 6.18. It includes
the following changes:
        - docs/zh_CN: Add rust Chinese translations
        - docs/zh_CN: Add scsi Chinese translations
        - docs/zh_CN: Add gfs2 Chinese translations
        - Add some other Chinese translations and fixes

Above patches are tested by 'make htmldocs'
2025-11-03 16:19:12 -07:00
Jonathan Corbet 683e8cbaba docs: remove kernel-doc.pl
We've been using the Python version and nobody has missed this one.  All
credit goes to Mauro Carvalho Chehab for creating the replacement.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-28 16:01:31 -06:00
Jonathan Corbet 184414c6a6 docs: move find-unused-docs.sh to tools/docs
...and update references accordingly.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-28 16:01:27 -06:00
Jonathan Corbet f1c2db1f14 docs: move test_doc_build.py to tools/docs
Add this tool to tools/docs.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-28 16:01:24 -06:00
Jonathan Corbet a5dd93016f docs: move get_abi.py to tools/docs
Move this tool out of scripts/ to join the other documentation tools; fix
up a couple of erroneous references in the process.

It's worth noting that this script will fail badly unless one has a
PYTHONPATH referencing scripts/lib/abi.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-28 16:01:20 -06:00
Jonathan Corbet eaae0ad972 docs: move scripts/documentation-file-ref-check to tools/docs
Add this script to the growing collection of documentation tools.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-28 16:01:17 -06:00
Jonathan Corbet d37366cac4 docs: move checktransupdate.py to tools/docs
The checktranslate.py tool currently languishes in scripts/; move it to
tools/docs and update references accordingly.

Cc: Alex Shi <alexs@kernel.org>
Cc: Yanteng Si <si.yanteng@linux.dev>
Cc: Dongliang Mu <dzm91@hust.edu.cn>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-28 16:01:13 -06:00
Jonathan Corbet 909597fa01 docs: Move the "features" tools to tools/docs
The scripts for managing the features docs are found in three different
directories; unite them all under tools/docs and update references as
needed.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-28 16:01:00 -06:00
Jonathan Corbet 3df5affb4b Merge branch 'build-script' into docs-mw
Quoth Mauro:

This series should probably be called:

    "Move the trick-or-treat build hacks accumulated over time
     into a single place and document them."

as this reflects its main goal. As such:

- it places the jobserver logic on a library;
- it removes sphinx/parallel-wrapper.sh;
- the code now properly implements a jobserver-aware logic
  to do the parallelism when called via GNU make, failing back to
  "-j" when there's  no jobserver;
- converts check-variable-fonts.sh to Python and uses it via
  function call;
- drops an extra script to generate man pages, adding a makefile
  target for it;
- ensures that return code is 0 when PDF successfully builds;
- about half of the script is comments and documentation.

I tried to do my best to document all tricks that are inside the
script. This way, the docs build steps is now documented.

It should be noticed that it is out of the scope of this series
to change the implementation. Surely the process can be improved,
but first let's consolidate and document everything on a single
place.

Such script was written in a way that it can be called either
directly or via a Makefile. Running outside Makefile is
interesting specially when debug is needed. The command line
interface replaces the need of having lots of env vars before
calling sphinx-build:

    $ ./tools/docs/sphinx-build-wrapper --help
    usage: sphinx-build-wrapper [-h]
	   [--sphinxdirs SPHINXDIRS [SPHINXDIRS ...]] [--conf CONF]
	   [--builddir BUILDDIR] [--theme THEME] [--css CSS] [--paper {,a4,letter}] [-v]
	   [-j JOBS] [-i] [-V [VENV]]
	   {cleandocs,linkcheckdocs,htmldocs,epubdocs,texinfodocs,infodocs,mandocs,latexdocs,pdfdocs,xmldocs}

    Kernel documentation builder

    positional arguments:
      {cleandocs,linkcheckdocs,htmldocs,epubdocs,texinfodocs,infodocs,mandocs,latexdocs,pdfdocs,xmldocs}
			    Documentation target to build

    options:
      -h, --help            show this help message and exit
      --sphinxdirs SPHINXDIRS [SPHINXDIRS ...]
			    Specific directories to build
      --conf CONF           Sphinx configuration file
      --builddir BUILDDIR   Sphinx configuration file
      --theme THEME         Sphinx theme to use
      --css CSS             Custom CSS file for HTML/EPUB
      --paper {,a4,letter}  Paper size for LaTeX/PDF output
      -v, --verbose         place build in verbose mode
      -j, --jobs JOBS       Sets number of jobs to use with sphinx-build
      -i, --interactive     Change latex default to run in interactive mode
      -V, --venv [VENV]     If used, run Sphinx from a venv dir (default dir: sphinx_latest)

the only mandatory argument is the target, which is identical with
"make" targets.

The call inside Makefile doesn't use the last four arguments. They're
there to help identifying problems at the build:

    -v makes the output verbose;
    -j helps to test parallelism;
    -i runs latexmk in interactive mode, allowing to debug PDF
       build issues;
    -V is useful when testing it with different venvs.

When used with GNU make (or some other make which implements jobserver),
a call like:

    make -j <targets> htmldocs

will make the wrapper to automatically use POSIX jobserver to claim
the number of available job slots, calling sphinx-build with a
"-j" parameter reflecting it. ON such case, the default can be
overriden via SPHINXDIRS argument.

Visiable changes when compared with the old behavior:

When V=0, the only visible difference is that:
- pdfdocs target now returns 0 on success, 1 on failures.
  This addresses an issue over the current process where we
  it always return success even on failures;
- it will now print the name of PDF files that failed to build,
  if any.

In verbose mode, sphinx-build-wrapper and sphinx-build command lines
are now displayed.
2025-10-17 14:11:30 -06:00
Jonathan Corbet d0841b8761 Merge branch 'media-uapi' into docs-mw
Mauro says:

In the past, media used Docbook to generate documentation, together
with some logic to ensure that cross-references would match the
actual defined uAPI.

The rationale is that we wanted to automatically check for uAPI
documentation gaps.

The same logic was migrated to Sphinx. Back then, broken links
were reported. However, recent versions of it and/or changes at
conf.py disabled such checks.

The result is that several symbols are now not cross-referenced,
and we don't get warnings anymore when something breaks.

This series consist on 2 parts:

Part 1: extra patches to parse_data_structs.py and kernel_include.py;
Part 2: media documentation fixes.
2025-10-17 14:07:08 -06:00
Jonathan Corbet c018784377 docs: kdoc: a few more dump_typedef() tweaks
Merge "typedef" into the typedef_type pattern rather than repeating it
later, and add some comments.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:54 -06:00
Jonathan Corbet 00fa9bc4e9 docs: kdoc: remove redundant comment stripping in dump_typedef()
By the time we get here, comments have long since been stripped out; there
is no need to do it again.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:54 -06:00
Jonathan Corbet 999a642d7e docs: kdoc: remove some dead code in dump_typedef()
The regex in this block of code makes no sense, and a quick test shows that
it never matches anything; simply delete the code.

No output changes.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet 3dff54410e docs: kdoc: final dump_function() cleanups
Add some more comments to dump_function(), add some comments, and trim out
an unneeded duplicate output_declaration() call.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet 370f430527 docs: kdoc: consolidate some of the macro-processing logic
The logic to handle macros is split in dump_function(); bring it all
together into a single place and add a comment saying what's going on.
Remove the unneeded is_define_proto variable, and tighten up the code
a bit.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet ff1f2af341 docs: kdoc: Simplify the dump_function() prototype regexes
The regexes for the parsing of function prototypes were more complicated
than they needed to be and difficult to understand -- at least, I spent a
fair amount of time bashing my head against them.  Simplify them, and add
some documentation comments as well.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet 08b5228cf4 docs: kdoc: remove a useless empty capture group
The is_define_proto case in dump_function() uses a regex with an empty
capture group - () - that has no use; just take it out.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet fee63c8f10 docs: kdoc: remove a couple of spurious regex characters
The "name" regex in dump_function() includes both the tilde and colon
characters, but neither has any place in function prototypes.  Remove the
characters, after which the regex simplifies to "\w+"

No output changes.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet a2752f8c63 doc: kdoc: unify transform handling
Both functions and structs are passed through a set of regex-based
transforms, but the two were structured differently, despite being the same
thing.  Create a utility function to apply transformations and use it in
both cases.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet 4c232a81b0 docs: kdoc: move the function transform patterns out of dump_function()
Move these definitions to file level, where they are executed once, and
don't clutter the function itself.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet f853e83006 docs: kdoc: remove a single-use variable
struct_attribute is only used once, so just put its value there directly
and drop the name.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet e214cca38f docs: kdoc: tighten up the push_parameter() no-type case
The handling of untyped parameters involved a number of redundant tests;
restructure the code to remove them and be more compact.

No output changes.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet 8b00d6fe96 docs: kdoc: trim __cacheline_group_* with the other annotations
The special case for __cacheline_group_begin/end() can be handled by just
adding another pattern to the struct_prefixes, eliminating the need for a
special case in push_parameter().

One change is that these annotations no longer appear in the rendered
output, just like all the other annotations that we clean out.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 10:19:53 -06:00
Jonathan Corbet 00d95fcc4d docs: kdoc: handle the obsolescensce of docutils.ErrorString()
The ErrorString() and SafeString() docutils functions were helpers meant to
ease the handling of encodings during the Python 3 transition.  There is no
real need for them after Python 3.6, and docutils 0.22 removes them,
breaking the docs build

Handle this by just injecting our own one-liner version of ErrorString(),
and removing the sole SafeString() call entirely.

Reported-by: Zhixu Liu <zhixu.liu@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <87ldmnv2pi.fsf@trenco.lwn.net>
2025-09-15 17:24:06 -06:00
Jonathan Corbet 944df7a314 docs: update the guidance for Link: tags
As stated definitively by Linus, the use of Link: tags should be limited to
situations where there is additional useful information to be found at the
far end of the link.  Update our documentation to reflect that policy, and
to remove the suggestion for a Git hook to add those tags automatically.

Link: https://lore.kernel.org/all/CAHk-=wh5AyuvEhNY9a57v-vwyr7EkPVRUKMPwj92yF_K0dJHVg@mail.gmail.com/
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <87segwyc3p.fsf@trenco.lwn.net>
2025-09-15 17:22:38 -06:00
Jonathan Corbet 2d0dbf6e04 Merge branch 'renames' into docs-mw
From Vegard Nossum:

When we rename an .rst file, that also changes the URL for the document
at https://docs.kernel.org/ and results in a 404, which can be anonying
for people who bookmark URLs and/or follow links from search engines
and old changelogs and emails.

In order to be able to fearlessly rename individual documentation files
and reorganize Documentation/, add two scripts:

- tools/docs/gen-renames.py : use git to figure out which .rst files
  have been renamed

- tools/docs/gen-redirects.py : actually generate .html stubs for the
  locations, redirecting to the new locations

The reason for splitting this into two is that trawling git history is
slightly slow (on the order of 20-30 seconds on my laptop) whereas just
generating the HTML files is very fast. This also allows us to cache
the historical renames in Documentation/.renames.txt or add manual
fixups as needed.
2025-09-09 13:40:35 -06:00
Jonathan Corbet c67a9f492c Merge branch 'mauro' into docs-mw
Another build series from Mauro:

The goal of this series is to drop one of the most ancient and ugliest
hack from the documentation build system. Before migrating to Sphinx,
the media subsystem already had a very comprehensive uAPI book, together
with a build time system to detect and point for any documentation gaps.

When migrating to Sphinx, we ported the logic to a Perl script
(parse-headers.pl) and Markus came up with a Sphinx extension
(kernel_include.py). We also added some files to control how parse-headers
produce results, and a Makefile.

At the initial Sphinx versions (1.4.1 if I recall correctly), when
a new symbol is added to videodev2.h, a new warning were
produced at documentatiion time, it the patchset didn't have
the corresponding documentation path.

While kernel-include is generic, the only user at the moment is the media
subsystem.

This series gets rid of the Python script, replacing it by a command
line script and a class. The parse header class can optionally be used by
kernel-include to produce an enriched code that will contain cross-references.

As the other conversions, it starts with a bug-compatible version of
parse-headers, but the subsequent patches add more functionalities and
fix bugs.

It should be noticed that modern of Sphinx disabled the cross-reference
warnings. So, at the next series, I'll be re-adding it in a controlled way
(e.g. just for the references from kernel-include that has an special
argument).

The script also supports now generating a "toc" output, which will be used
at the next series.
2025-08-29 15:58:48 -06:00
Jonathan Corbet ee9a669193 Merge branch 'mauro-pdf' into docs-mw
Here it is the second version of the PDF series. I opted to split one of
the patches in 3, to have a clearer changelog and description.

Also, archlinux LXC image download started working again, so I added
an extra patch addressing texlive packae dependencies.

This series is taking me a way more time than antecipated.

This series as 3 goals:

1. Fix a pre-Sphinx 1.7 PDF variable that got renamed, but
   our Makefile still uses the old one that is not supported
   since Sphinx 1.7;

2. Fix broken or incomplete texlive dependencies on several
   distros;

4. "modernize" conf.py to solve font conflicts related to UTF-8
   and non-UTF fonts from [T1]{fontenc}  LaTeX package.

   Using fontenc with xelatex is problematic, as documented at

	https://www.sphinx-doc.org/en/master/latex.html

Please notice that:

- It doesn't pretend to fix all  PDF issues. It focus only at the
  above;
- there are still distros where PDF builds fail either partially
  or as a hole. On my checks, those are due to problematic
  texlive packages shipped on such distros;
- it doesn't touch/address/alter anyhing related to kfigure.py.
  as such, it doesn't touch/change/improve/drop anything with
  regards ImageMagick and/or Inkscape.
2025-08-21 14:09:21 -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
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
Jonathan Corbet 0bbc2548ea Merge branch 'pre-install' into docs-mw
Mauro says:

that's the second version of the patch series which converts
sphinx-pre-install to Python.

The core patches are basically the same as on v1, but it has lots of
fixes over the original script after testing sphinx-install on 22
distros.

Please notice that I have a separate patch series addressing issues
that are specific to PDF generation.

Test Results Summary:
====================

  PASSED - AlmaLinux release 9.6 (Sage Margay) (4 tests)
  PASSED - Amazon Linux release 2023 (Amazon Linux) (4 tests)
  PASSED - Arch Linux (4 tests)
  PASSED - CentOS Stream release 9 (4 tests)
  PASSED - Debian GNU/Linux 12 (4 tests)
  PASSED - Devuan GNU/Linux 5 (4 tests)
  PASSED - Fedora release 42 (Adams) (4 tests)
  PASSED - Gentoo Base System release 2.17 (4 tests)
  PASSED - Kali GNU/Linux 2025.2 (4 tests)
  PASSED - Mageia 9 (4 tests)
  PASSED - Linux Mint 22 (4 tests)
  PASSED - openEuler release 25.03 (4 tests)
  PARTIAL - OpenMandriva Lx 4.3 (4 tests)
	ensurepip package doesn't exist there. So, venv install failed.
	Installed via package worked
  PASSED - openSUSE Leap 15.6 (4 tests)
  PASSED - openSUSE Tumbleweed (4 tests)
  PASSED - Oracle Linux Server release 9.6 (4 tests)
  FAILED - Red Hat Enterprise Linux release 8.10 (Ootpa) (4 tests)
	I couldn't test properly, as it requires a repository under
	paywall. I suspect It should work fine
  PARTIAL - Rocky Linux release 8.9 (Green Obsidian) (4 tests)
	Install via package didn't work. Instaling via venv works.
  PASSED - Rocky Linux release 9.6 (Blue Onyx) (4 tests)
  PARTIAL - Springdale Open Enterprise Linux release 9.2 (Parma) (4 tests)
	Failed to install ImageMagick (affects pdf only)
  PASSED - Ubuntu 24.04.2 LTS (4 tests)
  PASSED - Ubuntu 25.04 (4 tests)

In short, I expect that, for all the above, the script will properly
recommend the right packages to have sphinx-build working.

A more detailed list of tests that passed/failed and detected Sphinx
versions can be seeing below:

AlmaLinux release 9.6 (Sage Margay):
------------------------------------
    PASSED: OS detection: AlmaLinux release 9.6 (Sage Margay)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Amazon Linux release 2023 (Amazon Linux):
-----------------------------------------
    PASSED: OS detection: Amazon Linux release 2023 (Amazon Linux)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Arch Linux:
-----------
    PASSED: OS detection: Arch Linux
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.2.3

CentOS Stream release 9:
------------------------
    PASSED: OS detection: CentOS Stream release 9
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Debian GNU/Linux 12:
--------------------
    PASSED: OS detection: Debian GNU/Linux 12
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 5.3.0

Devuan GNU/Linux 5:
-------------------
    PASSED: OS detection: Devuan GNU/Linux 5
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 5.3.0

Fedora release 42 (Adams):
--------------------------
    PASSED: OS detection: Fedora release 42 (Adams)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3

Gentoo Base System release 2.17:
--------------------------------
    PASSED: OS detection: Gentoo Base System release 2.17
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.2.3

Kali GNU/Linux 2025.2:
----------------------
    PASSED: OS detection: Kali GNU/Linux 2025.2
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3

Mageia 9:
---------
    PASSED: OS detection: Mageia 9
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 6.1.3
    PASSED: Sphinx package: Sphinx 6.1.3

Linux Mint 22:
--------------
    PASSED: OS detection: Linux Mint 22
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.1.3
    PASSED: Sphinx package: Sphinx 4.3.2

openEuler release 25.03:
------------------------
    PASSED: OS detection: openEuler release 25.03
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3

OpenMandriva Lx 4.3:
--------------------
    PASSED: OS detection: OpenMandriva Lx 4.3
    FAILED: System packages:  Error: Unable to find a match: ensurepip
    FAILED: Sphinx on venv: Installation failed
    PASSED: Sphinx package: Sphinx 4.3.2

openSUSE Leap 15.6:
-------------------
    PASSED: OS detection: openSUSE Leap 15.6
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 7.2.6

openSUSE Tumbleweed:
--------------------
    PASSED: OS detection: openSUSE Tumbleweed
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.2.3

Oracle Linux Server release 9.6:
--------------------------------
    PASSED: OS detection: Oracle Linux Server release 9.6
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Red Hat Enterprise Linux release 8.10 (Ootpa):
----------------------------------------------
    PASSED: OS detection: Red Hat Enterprise Linux release 8.10 (Ootpa)
    FAILED: System packages:  Error: Unable to find a match: google-noto-sans-cjk-ttc-fonts librsvg2-tools
texlive-amscls texlive-amsfonts texlive-amsmath texlive-anyfontsize texlive-capt-of texlive-cmap
texlive-collection-fontsrecommended texlive-collection-latex texlive-ec texlive-eqparbox texlive-euenc
texlive-fancybox texlive-fancyvrb texlive-float texlive-fncychap texlive-framed texlive-luatex85
texlive-mdwtools texlive-multirow texlive-needspace texlive-oberdiek texlive-parskip texlive-polyglossia
texlive-psnfss texlive-tabulary texlive-threeparttable texlive-titlesec texlive-tools texlive-ucs
texlive-upquote texlive-wrapfig texlive-xecjk texlive-xetex-bin
    FAILED: Sphinx on venv: No Sphinx version detected
    FAILED: Sphinx package: No Sphinx version detected

Rocky Linux release 8.9 (Green Obsidian):
-----------------------------------------
    PASSED: OS detection: Rocky Linux release 8.9 (Green Obsidian)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    FAILED: Sphinx package: No Sphinx version detected

Rocky Linux release 9.6 (Blue Onyx):
------------------------------------
    PASSED: OS detection: Rocky Linux release 9.6 (Blue Onyx)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Springdale Open Enterprise Linux release 9.2 (Parma):
-----------------------------------------------------
    PASSED: OS detection: Springdale Open Enterprise Linux release 9.2 (Parma)
    FAILED: System packages:  Error:   Problem: package ImageMagick-6.9.13.25-1.el9.x86_64 requires
libMagickCore-6.Q16.so.7()(64bit), but none of the providers can be installed   - package
ImageMagick-6.9.13.25-1.el9.x86_64 requires libMagickWand-6.Q16.so.7()(64bit), but none of the providers can
be installed   - package ImageMagick-6.9.13.25-1.el9.x86_64 requires ImageMagick-libs(x86-64) =
6.9.13.25-1.el9, but none of the providers can be installed   - conflicting requests   - nothing provides
libraw_r.so.23()(64bit) needed by ImageMagick-libs-6.9.13.25-1.el9.x86_64
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Ubuntu 24.04.2 LTS:
-------------------
    PASSED: OS detection: Ubuntu 24.04.2 LTS
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 7.2.6

Ubuntu 25.04:
-------------
    PASSED: OS detection: Ubuntu 25.04
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3

Summary
=======
  PASSED - AlmaLinux release 9.6 (Sage Margay) (4 tests)
  PASSED - Amazon Linux release 2023 (Amazon Linux) (4 tests)
  PASSED - Arch Linux (4 tests)
  PASSED - CentOS Stream release 9 (4 tests)
  PASSED - Debian GNU/Linux 12 (4 tests)
  PASSED - Devuan GNU/Linux 5 (4 tests)
  PASSED - Fedora release 42 (Adams) (4 tests)
  PASSED - Gentoo Base System release 2.17 (4 tests)
  PASSED - Kali GNU/Linux 2025.2 (4 tests)
  PASSED - Mageia 9 (4 tests)
  PASSED - Linux Mint 22 (4 tests)
  PASSED - openEuler release 25.03 (4 tests)
  FAILED - OpenMandriva Lx 4.3 (4 tests)
  PASSED - openSUSE Leap 15.6 (4 tests)
  PASSED - openSUSE Tumbleweed (4 tests)
  PASSED - Oracle Linux Server release 9.6 (4 tests)
  FAILED - Red Hat Enterprise Linux release 8.10 (Ootpa) (4 tests)
  FAILED - Rocky Linux release 8.9 (Green Obsidian) (4 tests)
  PASSED - Rocky Linux release 9.6 (Blue Onyx) (4 tests)
  FAILED - Springdale Open Enterprise Linux release 9.2 (Parma) (4 tests)
  PASSED - Ubuntu 24.04.2 LTS (4 tests)
  PASSED - Ubuntu 25.04 (4 tests)
(base) mchehab@foz /new_devel/mchehab_scripts $ ktap_reader.py /tmp/test_logs/*

AlmaLinux release 9.6 (Sage Margay):
------------------------------------
    PASSED: OS detection: AlmaLinux release 9.6 (Sage Margay)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Amazon Linux release 2023 (Amazon Linux):
-----------------------------------------
    PASSED: OS detection: Amazon Linux release 2023 (Amazon Linux)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Arch Linux:
-----------
    PASSED: OS detection: Arch Linux
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.2.3

CentOS Stream release 9:
------------------------
    PASSED: OS detection: CentOS Stream release 9
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Debian GNU/Linux 12:
--------------------
    PASSED: OS detection: Debian GNU/Linux 12
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 5.3.0

Devuan GNU/Linux 5:
-------------------
    PASSED: OS detection: Devuan GNU/Linux 5
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 5.3.0

Fedora release 42 (Adams):
--------------------------
    PASSED: OS detection: Fedora release 42 (Adams)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3

Gentoo Base System release 2.17:
--------------------------------
    PASSED: OS detection: Gentoo Base System release 2.17
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.2.3

Kali GNU/Linux 2025.2:
----------------------
    PASSED: OS detection: Kali GNU/Linux 2025.2
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3

Mageia 9:
---------
    PASSED: OS detection: Mageia 9
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 6.1.3
    PASSED: Sphinx package: Sphinx 6.1.3

Linux Mint 22:
--------------
    PASSED: OS detection: Linux Mint 22
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.1.3
    PASSED: Sphinx package: Sphinx 4.3.2

openEuler release 25.03:
------------------------
    PASSED: OS detection: openEuler release 25.03
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3

OpenMandriva Lx 4.3:
--------------------
    PASSED: OS detection: OpenMandriva Lx 4.3
    FAILED: System packages:  Error: Unable to find a match: ensurepip
    PARTIAL: Sphinx on venv: Installation failed
    PASSED: Sphinx package: Sphinx 4.3.2

openSUSE Leap 15.6:
-------------------
    PASSED: OS detection: openSUSE Leap 15.6
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 7.2.6

openSUSE Tumbleweed:
--------------------
    PASSED: OS detection: openSUSE Tumbleweed
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.2.3

Oracle Linux Server release 9.6:
--------------------------------
    PASSED: OS detection: Oracle Linux Server release 9.6
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Red Hat Enterprise Linux release 8.10 (Ootpa):
----------------------------------------------
    PASSED: OS detection: Red Hat Enterprise Linux release 8.10 (Ootpa)
    FAILED: System packages:  Error: Unable to find a match: google-noto-sans-cjk-ttc-fonts librsvg2-tools
texlive-amscls texlive-amsfonts texlive-amsmath texlive-anyfontsize texlive-capt-of texlive-cmap
texlive-collection-fontsrecommended texlive-collection-latex texlive-ec texlive-eqparbox texlive-euenc
texlive-fancybox texlive-fancyvrb texlive-float texlive-fncychap texlive-framed texlive-luatex85
texlive-mdwtools texlive-multirow texlive-needspace texlive-oberdiek texlive-parskip texlive-polyglossia
texlive-psnfss texlive-tabulary texlive-threeparttable texlive-titlesec texlive-tools texlive-ucs
texlive-upquote texlive-wrapfig texlive-xecjk texlive-xetex-bin
    PARTIAL: Sphinx on venv: No Sphinx version detected
    PARTIAL: Sphinx package: No Sphinx version detected

Rocky Linux release 8.9 (Green Obsidian):
-----------------------------------------
    PASSED: OS detection: Rocky Linux release 8.9 (Green Obsidian)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PARTIAL: Sphinx package: No Sphinx version detected

Rocky Linux release 9.6 (Blue Onyx):
------------------------------------
    PASSED: OS detection: Rocky Linux release 9.6 (Blue Onyx)
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Springdale Open Enterprise Linux release 9.2 (Parma):
-----------------------------------------------------
    PASSED: OS detection: Springdale Open Enterprise Linux release 9.2 (Parma)
    FAILED: System packages:  Error:   Problem: package ImageMagick-6.9.13.25-1.el9.x86_64 requires
libMagickCore-6.Q16.so.7()(64bit), but none of the providers can be installed   - package
ImageMagick-6.9.13.25-1.el9.x86_64 requires libMagickWand-6.Q16.so.7()(64bit), but none of the providers can
be installed   - package ImageMagick-6.9.13.25-1.el9.x86_64 requires ImageMagick-libs(x86-64) =
6.9.13.25-1.el9, but none of the providers can be installed   - conflicting requests   - nothing provides
libraw_r.so.23()(64bit) needed by ImageMagick-libs-6.9.13.25-1.el9.x86_64
    PASSED: Sphinx on venv: Sphinx 7.4.7
    PASSED: Sphinx package: Sphinx 3.4.3

Ubuntu 24.04.2 LTS:
-------------------
    PASSED: OS detection: Ubuntu 24.04.2 LTS
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 7.2.6

Ubuntu 25.04:
-------------
    PASSED: OS detection: Ubuntu 25.04
    PASSED: System packages: Packages installed
    PASSED: Sphinx on venv: Sphinx 8.2.3
    PASSED: Sphinx package: Sphinx 8.1.3
2025-08-13 10:19:50 -06:00
Jonathan Corbet 577a49cf28 Merge tag 'docs/v6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-docs into mauro
Mauro says:

As discussed at:
   https://lore.kernel.org/all/20250610101331.62ba466f@foz.lan/

changeset f061c9f7d0 ("Documentation: Document each netlink family")
added a logic which generates *.rst files inside $(srctree). This is bad
when O=<BUILDDIR> is used.

A recent change renamed the yaml files used by Netlink, revealing a bad
side effect: as "make cleandocs" don't clean the produced files and symbols
appear duplicated for people that don't build the kernel from scratch.

This series adds an yaml parser extension and uses an index file with glob for
*. We opted to write such extension in a way that no actual yaml conversion
code is inside it. This makes it flexible enough to handle other types of yaml
files in the future. The actual yaml conversion logic were placed at
netlink_yml_parser.py.

As requested by YNL maintainers, this version has netlink_yml_parser.py
inside tools/net/ynl/pyynl/ directory. I don't like mixing libraries with
binaries, nor to have Python libraries spread all over the Kernel. IMO,
the best is to put all of them on a common place (scripts/lib, python/lib,
lib/python, ...) but, as this can be solved later, for now let's keep it this
way.
2025-08-12 12:23:57 -06:00
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
Jonathan Corbet f587722aa5 Merge branch 'kdoc-item2' into docs-mw
The kerneldoc parsing phase gathers all of the information about the
declarations of interest, then passes it through to the output phase as a
dict that is an unstructured blob of information; this organization has its
origins in the Perl version of the program.  It results in an interface
that is difficult to reason about, dozen-parameter function calls, and
other ills.

Introduce a new class (KdocItem) to carry this information between the
parser and the output modules, and, step by step, modify the system to use
this class in a more structured way.  This could be taken further by
creating a subclass of KdocItem for each declaration type (function,
struct, ...), but that is probably more structure than we need.

The result is (I hope) clearer code, the removal of a bunch of boilerplate,
and no changes to the generated output.
2025-07-15 13:46:42 -06:00
Jonathan Corbet 40020fe8e3 docs: kdoc: emit a warning for ancient versions of Python
Versions of Python prior to 3.7 do not guarantee to remember the insertion
order of dicts; since kernel-doc depends on that guarantee, running with
such older versions could result in output with reordered sections.

Python 3.9 is the minimum for the kernel as a whole, so this should not be
a problem, but put in a warning just in case somebody tries to use
something older.

Suggested-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:30 -06:00
Jonathan Corbet 636d4d9ec6 docs: kdoc: clean up check_sections()
entry.sectcheck is just a duplicate of our list of sections that is only
passed to check_sections(); its main purpose seems to be to avoid checking
the special named sections.  Rework check_sections() to not use that field
(which is then deleted), tocheck for the known sections directly, and
tighten up the logic in general.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:30 -06:00
Jonathan Corbet bd5628bf60 docs: kdoc: directly access the always-there KdocItem fields
They are part of the interface, so use them directly.  This allows the
removal of the transitional __dict__ hack in KdocItem.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:30 -06:00
Jonathan Corbet 08b8dc43d1 docs: kdoc: straighten up dump_declaration()
Get rid of the excess "return" statements in dump_declaration(), along with
a line of never-executed dead code.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:30 -06:00
Jonathan Corbet a0db2051d7 docs: kdoc: Regularize the use of the declaration name
Each declaration type passes through the name in a unique field of the
"args" blob - even though we have always just passed the name separately.
Get rid of all the weird names and just use the common version.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:30 -06:00
Jonathan Corbet de6f7ac91a docs: kdoc: Coalesce parameter-list handling
Callers to output_declaration() always pass the parameter information from
self.entry; remove all of the boilerplate arguments and just get at that
information directly.  Formalize its placement in the KdocItem class.

It would be nice to get rid of parameterlist as well, but that has the
effect of reordering the output of function parameters and struct fields to
match the order in the kerneldoc comment rather than in the declaration.
One could argue about which is more correct, but the ordering has been left
unchanged for now.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:16 -06:00
Jonathan Corbet efacdf8513 docs: kdoc: use self.entry.parameterlist directly in check_sections()
Callers of check_sections() join parameterlist into a single string, which
is then immediately split back into the original list.  Rather than do all
that, just use parameterlist directly in check_sections().

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:16 -06:00
Jonathan Corbet 172bee3376 docs: kdoc: remove the "struct_actual" machinery
The code goes out of its way to create a special list of parameters in
entry.struct_actual that is just like entry.parameterlist, but with extra
junk.  The only use of that information, in check_sections(), promptly
strips all the extra junk back out.  Drop all that extra work and just use
parameterlist.

No output changes.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:16 -06:00
Jonathan Corbet 8d7338752d docs: kdoc: Centralize handling of the item section list
The section list always comes directly from the under-construction entry
and is used uniformly.  Formalize section handling in the KdocItem class,
and have output_declaration() load the sections directly from the entry,
eliminating a lot of duplicated, verbose parameters.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:13 -06:00
Jonathan Corbet 8d9d122915 docs: kdoc: drop "sectionlist"
Python dicts (as of 3.7) are guaranteed to remember the insertion order of
items, so we do not need a separate list for that purpose.  Drop the
per-entry sectionlist variable and just rely on native dict ordering.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-15 13:43:07 -06:00
Jonathan Corbet 869cab3ace Merge tag 'chinese-doc-6.16-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/alexs/linux into docs-mw
Chinese translation docs for 6.16-rc1 from Alex Shi

This is the Chinese translation subtree for 6.16-rc1. It
includes few changes:
        - Updates to the process documentation
        - Added translations for network and speculation docs
        - Polished zh_CN/how-to.rst
The above patches have been tested by 'make htmldocs'
2025-07-15 13:20:32 -06:00
Jonathan Corbet 5d77dcc07f docs: kdoc: pretty up dump_enum()
Add some comments to dump_enum to help the next person who has to figure
out what it is actually doing.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-8-corbet@lwn.net
2025-07-08 08:06:26 -06:00
Jonathan Corbet 92fb8091c0 docs: kdoc: Remove a Python 2 comment
We no longer support Python 2 in the docs build chain at all, so we
certainly do not need to admonish folks to keep this file working with it.

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-7-corbet@lwn.net
2025-07-08 08:06:25 -06:00
Jonathan Corbet 414ccf92ae docs: kdoc: some tweaks to process_proto_function()
Add a set of comments to process_proto_function and reorganize the logic
slightly; no functional change.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-6-corbet@lwn.net
2025-07-08 08:06:25 -06:00
Jonathan Corbet b8ac0259f8 docs: kdoc: rework type prototype parsing
process_proto_type() is using a complex regex and a "while True" loop to
split a declaration into chunks and, in the end, count brackets.  Switch to
using a simpler regex to just do the split directly, and handle each chunk
as it comes.  The result is, IMO, easier to understand and reason about.

The old algorithm would occasionally elide the space between function
parameters; see struct rng_alg->generate(), foe example.  The only output
difference is to not elide that space, which is more correct.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-5-corbet@lwn.net
2025-07-08 08:06:25 -06:00
Jonathan Corbet 061a1c1a27 docs: kdoc: remove the brcount floor in process_proto_type()
Putting the floor under brcount does not change the output in any way, just
remove it.

Change the termination test from ==0 to <=0 to prevent infinite loops in
case somebody does something truly wacko in the code.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-4-corbet@lwn.net
2025-07-08 08:06:25 -06:00
Jonathan Corbet 8078e0ed1f docs: kdoc: micro-optimize KernRe
Rework _add_regex() to avoid doing the lookup twice for the (hopefully
common) cache-hit case.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-3-corbet@lwn.net
2025-07-08 08:06:25 -06:00
Jonathan Corbet e7e540363c docs: kdoc: don't reinvent string.strip()
process_proto_type() and process_proto_function() reinventing the strip()
string method with a whole series of separate regexes; take all that out
and just use strip().

The previous implementation also (in process_proto_type()) removed C++
comments *after* the above dance, leaving trailing whitespace in that case;
now we do the stripping afterward.  This results in exactly one output
change: the removal of a spurious space in the definition of
BACKLIGHT_POWER_REDUCED - see
https://docs.kernel.org/gpu/backlight.html#c.backlight_properties.

I note that we are putting semicolons after #define lines that really
shouldn't be there - a task for another day.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-2-corbet@lwn.net
2025-07-08 08:06:25 -06:00
Jonathan Corbet 703f9074a8 docs: kdoc: simplify the output-item passing
Since our output items contain their name, we don't need to pass it
separately.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-02 14:14:31 -06:00
Jonathan Corbet 60016e0116 docs: kdoc; Add a rudimentary class to represent output items
This class is intended to replace the unstructured dict used to accumulate
an entry to pass to an output module.  For now, it remains unstructured,
but it works well enough that the output classes don't notice the
difference.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-02 14:14:24 -06:00
Jonathan Corbet d1af288968 docs: kdoc: pretty up dump_enum()
Add some comments to dump_enum to help the next person who has to figure
out what it is actually doing.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-01 15:36:01 -06:00
Jonathan Corbet 2549e03c7b docs: kdoc: Remove a Python 2 comment
We no longer support Python 2 in the docs build chain at all, so we
certainly do not need to admonish folks to keep this file working with it.

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-01 14:52:00 -06:00
Jonathan Corbet 901f506945 docs: kdoc: some tweaks to process_proto_function()
Add a set of comments to process_proto_function and reorganize the logic
slightly; no functional change.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-01 14:52:00 -06:00
Jonathan Corbet 1aeb8099d0 docs: kdoc: rework type prototype parsing
process_proto_type() is using a complex regex and a "while True" loop to
split a declaration into chunks and, in the end, count brackets.  Switch to
using a simpler regex to just do the split directly, and handle each chunk
as it comes.  The result is, IMO, easier to understand and reason about.

The old algorithm would occasionally elide the space between function
parameters; see struct rng_alg->generate(), foe example.  The only output
difference is to not elide that space, which is more correct.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-07-01 14:51:53 -06:00
Jonathan Corbet 0cde7924b8 docs: kdoc: split the processing of the two remaining inline states
Now that "inline_*" are just ordinary parser states, split them into two
separate functions, getting rid of some nested conditional logic.

The original process_inline() would simply ignore lines that didn't match
any of the regexes (those lacking the initial " * " marker).  I have
preserved that behavior, but we should perhaps emit a warning instead.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-9-corbet@lwn.net
2025-07-01 13:11:58 -06:00
Jonathan Corbet 8976f993a3 docs: kdoc: remove the inline states-within-a-state
The processing of inline kerneldoc comments is a state like the rest, but
it was implemented as a set of separate substates.  Just remove the
substate logic and make the inline states normal ones like the rest.

INLINE_ERROR was never actually used for anything, so just take it out.

No changes to the generated output.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-8-corbet@lwn.net
2025-07-01 13:11:58 -06:00
Jonathan Corbet 388f4da27c docs: kdoc: remove the INLINE_END state
It is never used, so just get rid of it.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-7-corbet@lwn.net
2025-07-01 13:11:58 -06:00
Jonathan Corbet d06c54fd3e docs: kdoc: rework process_export() slightly
Reorganize process_export() to eliminate duplicated code, don't look for
exports in states where we don't expect them, and don't bother with normal
state-machine processing if an export declaration has been found.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-6-corbet@lwn.net
2025-07-01 13:11:58 -06:00
Jonathan Corbet 0aa3675c26 docs: kdoc: remove KernelEntry::function
This member is unused, to take it out.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-5-corbet@lwn.net
2025-07-01 13:11:58 -06:00
Jonathan Corbet 08cd655e5b docs: kdoc: remove a bit of dead code
The type_param regex matches "@..." just fine, so the special-case branch
for that in dump_section() is never executed.  Just remove it.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-4-corbet@lwn.net
2025-07-01 13:11:58 -06:00
Jonathan Corbet 1e2a79ca39 docs: kdoc: Move content handling into KernelEntry
Rather than having other code mucking around with this bit of internal
state, encapsulate it internally.  Accumulate the description as a list of
strings, joining them at the end, which is a more efficient way of building
the text.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-3-corbet@lwn.net
2025-07-01 13:11:57 -06:00
Jonathan Corbet 4eaf6120c1 docs: kdoc: remove KernelEntry::in_doc_sect
This field is not used for anything, just get rid of it.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250627184000.132291-2-corbet@lwn.net
2025-07-01 13:11:57 -06:00
Jonathan Corbet bfa5bb3d10 docs: kdoc: remove the brcount floor in process_proto_type()
Putting the floor under brcount does not change the output in any way, just
remove it.

Change the termination test from ==0 to <=0 to prevent infinite loops in
case somebody does something truly wacko in the code.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-06-30 10:03:28 -06:00
Jonathan Corbet 09b9297478 docs: kdoc: micro-optimize KernRe
Switch KernRe::add_regex() to a try..except block to avoid looking up each
regex twice.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-06-30 09:56:01 -06:00