226 Commits
Author SHA1 Message Date
Daniel PereiraandJonathan Corbet 8dd9b4378b docs: pt_BR: Add initial Portuguese translation
Introduce the initial Portuguese (Brazilian) translation
for the Linux kernel documentation (HOWTO document). It establishes
the directory structure for the pt_BR locale and adds the official
entry for the pt_BR maintainer in the MAINTAINERS file.

Additionally, this version adds pt_BR support to the documentation
build script (Documentation/sphinx/translations.py) to ensure proper
rendering and fixes the documentation hierarchy to avoid orphan file
warnings.

Signed-off-by: Daniel Pereira <danielmaraboo@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
[jc: fix duplicate process_howto label]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260204113210.185221-1-danielmaraboo@gmail.com>
2026-02-23 14:16:07 -07:00
wheatfoxandJonathan Corbet 6b8edfcd66 docs: automarkup.py: Skip common English words as C identifiers
The automarkup extension incorrectly recognizes common English words
as C identifiers when they follow struct/union/enum/typedef keywords,
causing normal text like "... (a simple) struct that" (in `workqueue.rst`)
to be rendered as code blocks.

This patch adds Skipidentifiers list to filter out these words.

Signed-off-by: Yulong Han <wheatfox17@icloud.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260125124450.2005006-1-wheatfox17@icloud.com>
2026-01-27 10:35:57 -07:00
Mauro Carvalho ChehabandJonathan Corbet 0407f3714c docs: conf.py: get rid of the now unused kerneldoc_bin env var
In the past, this contained the location of the binary file to parse
kernel-doc. Nowadays, it is used only for debugging purposes, inside
kerneldoc.py extension.

Move it to sphinx/kerneldoc.py, to avoid needing to handle with it
on several places.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <c0fa9f561c1dd4370f9096de4195a9214763c51c.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
Mauro Carvalho ChehabandJonathan Corbet b713807eab Documentation/sphinx/kernel_feat.py: use class directly
Now that get_feat is in Python, we don't need to use subprocess
to fork an executable file: we can use the feature classes
directly.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <c59d2542d7cc914fd5f8c84df966e63adc924cdc.1763492868.git.mchehab+huawei@kernel.org>
2025-11-21 10:32:30 -07:00
Mauro Carvalho ChehabandJonathan Corbet caa642bf3b tools/docs/get_feat.py: convert get_feat.pl to Python
As we want to call Python code directly at the Sphinx extension,
convert get_feat.pl to Python.

The code was made to be (almost) bug-compatible with the Perl
version, with two exceptions:

1. Currently, Perl script outputs a wrong table if arch is set
   to a non-existing value;

2. the ReST table output when --feat is used without --arch
   has an invalid format, as the number of characters for the
   table delimiters are wrong.

Those two bugs were fixed while testing the conversion.

Additionally, another caveat was solved:
the output when --feat is used without arch and the feature
doesn't exist doesn't contain an empty table anymore.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <03c26cee1ec567804735a33047e625ef5ab7bfa8.1763492868.git.mchehab+huawei@kernel.org>
2025-11-21 10:32:30 -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 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 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
Mauro Carvalho ChehabandJonathan Corbet 11578a2ecb docs: kernel_include.py: use get_close_matches() to propose alternatives
Improve the suggestions algorithm by using get_close_matches() if
no suggestions with the same name are found. As we're now building
a dict, when the name is identical, but on a different domain,
the search is O(1), making it a lot faster.

The get_close_matches is also fast, as there is just one loop,
instead of 3.

This can be useful to detect typos on references, with could
be the base of a futuere extension that will handle ref unmatches
for the entire build, allowing someone to find typos and fix them.

As difflib and get_close_matches are there since the early
Python 3.x days, we don't need to handle any extra dependencies
to use it.

We're keeping the default values for the search, e.g. n=3, cutoff=0.6.
With that, we now have things like:

  $ make SPHINXDIRS="userspace-api/media" htmldocs
  ...
  include/uapi/linux/videodev2.h:199: WARNING: Invalid xref: c:type:`v4l2_memory`. Possible alternatives:
        c:type:`v4l2_meta_format` (from v4l/dev-meta)
        c:type:`v4l2_rect` (from v4l/dev-overlay)
        c:type:`v4l2_area` (from v4l/ext-ctrls-image-source) [ref.missing]
  ...
  include/uapi/linux/videodev2.h:1985: WARNING: Invalid xref: c:type:`V4L.v4l2_queryctrl`. Possible alternatives:
        std🏷️`v4l2-queryctrl` (from v4l/vidioc-queryctrl)
        std🏷️`v4l2-query-ext-ctrl` (from v4l/vidioc-queryctrl)

At the first example, it was not a typo, but a symbol that doesn't
seem to be properly documented. The second example points to
v4l2-queryctrl, which is a close match for the symbol.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <7365feb74cbdd6b982c87baf5863360ab98cf727.1759329363.git.mchehab+huawei@kernel.org>
2025-10-17 13:56:59 -06:00
Mauro Carvalho ChehabandJonathan Corbet 2cdd27a708 tools: docs: parse_data_structs.py: get rid of process_exceptions()
Add an extra parameter to parse_file to make it handle exceptions
internally, cleaning up the API.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <8575bbc94ff706aa7e7cc3a188399ca17a3169e6.1759329363.git.mchehab+huawei@kernel.org>
2025-10-17 13:56:59 -06:00
Mauro Carvalho ChehabandJonathan Corbet 641a4a13f3 docs: kernel_include.py: propose alternatives
Specially when using c::namespace, it is not hard to break
a reference by forgetting to add a domain. Also, different
cases and using "-"/"_" the wrong way are typical cases that
people often gets wrong.

We might use a more complex logic here to also check for typos,
but let's keep it plain, simple.

This is enough to get thos exeptions from media controller:

  .../include/uapi/linux/media.h:26: WARNING: Invalid xref: c:type:`media_device_info`. Possible alternatives:
	c:type:`MC.media_device_info` (from mediactl/media-ioc-device-info)
  .../include/uapi/linux/media.h:149: WARNING: Invalid xref: c:type:`media_entity_desc`. Possible alternatives:
	c:type:`MC.media_entity_desc` (from mediactl/media-ioc-enum-entities)
  .../include/uapi/linux/media.h:228: WARNING: Invalid xref: c:type:`media_link_desc`. Possible alternatives:
	c:type:`MC.media_link_desc` (from mediactl/media-ioc-enum-links)
  .../include/uapi/linux/media.h:235: WARNING: Invalid xref: c:type:`media_links_enum`. Possible alternatives:
	c:type:`MC.media_links_enum` (from mediactl/media-ioc-enum-links)
  .../include/uapi/linux/media.h:212: WARNING: Invalid xref: c:type:`media_pad_desc`. Possible alternatives:
	c:type:`MC.media_pad_desc` (from mediactl/media-ioc-enum-links)
  .../include/uapi/linux/media.h:298: WARNING: Invalid xref: c:type:`media_v2_entity`. Possible alternatives:
	c:type:`MC.media_v2_entity` (from mediactl/media-ioc-g-topology)
  .../include/uapi/linux/media.h:312: WARNING: Invalid xref: c:type:`media_v2_interface`. Possible alternatives:
	c:type:`MC.media_v2_interface` (from mediactl/media-ioc-g-topology)
  .../include/uapi/linux/media.h:307: WARNING: Invalid xref: c:type:`media_v2_intf_devnode`. Possible alternatives:
	c:type:`MC.media_v2_intf_devnode` (from mediactl/media-ioc-g-topology)
  .../include/uapi/linux/media.h:341: WARNING: Invalid xref: c:type:`media_v2_link`. Possible alternatives:
	c:type:`MC.media_v2_link` (from mediactl/media-ioc-g-topology)
  .../include/uapi/linux/media.h:333: WARNING: Invalid xref: c:type:`media_v2_pad`. Possible alternatives:
	c:type:`MC.media_v2_pad` (from mediactl/media-ioc-g-topology)
  .../include/uapi/linux/media.h:349: WARNING: Invalid xref: c:type:`media_v2_topology`. Possible alternatives:
	c:type:`MC.media_v2_topology` (from mediactl/media-ioc-g-topology)

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <4c75d277e950e619ea00ba2dea336853a4aac976.1759329363.git.mchehab+huawei@kernel.org>
2025-10-17 13:56:59 -06:00
Mauro Carvalho ChehabandJonathan Corbet 3ed9521772 docs: kernel_include.py: fix line numbers for TOC
On TOC output, we need to embeed line numbers with ViewList.

Change the parse class to produce a line-number parsed result,
and adjust the output accordingly.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <74eed96e32f79eaaef7a99ffe7c3224fed369c27.1759329363.git.mchehab+huawei@kernel.org>
2025-10-17 13:56:59 -06:00
Mauro Carvalho ChehabandJonathan Corbet 72603d73fa docs: conf.py: get rid of load_config.py
The code here was meant to handle 3 functions:
1. allow having a separate conf.py file, per subdir;
2. generate a list of latex documents.
3. set "subproject" tag if SPHINXDIRS points to a subdir.

We don't have (1) anymore, and (3) is now properly handled
entirely inside conf.py.

So, only (3) is still needed, and this is a single-line change
at conf.py.

So, drop it, moving the remaining code to conf.py.

While here, drop a duplicated $(RUSTDOC) command-line argument.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <ec998f9f268a401ca6aa36e3221d39c97efeccaa.1758361087.git.mchehab+huawei@kernel.org>
2025-09-21 16:40:37 -06:00
Mauro Carvalho ChehabandJonathan Corbet 2af8a8a47d docs: remove cdomain.py
This is not used anymore, as it was a logic we had to support
pre Sphinx 3.x, as shown at:

    afde706afd ("Make the docs build "work" with Sphinx 3.x")

Remove it.

Fixes: b26717852d ("docs: conf.py: drop backward support for old Sphinx versions")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <3b86d236c64af17924e4cfedbbfb8bc60059802f.1758381727.git.mchehab+huawei@kernel.org>
2025-09-21 16:35:57 -06:00
Mauro Carvalho ChehabandJonathan Corbet 2e1760999e docs: parallel-wrapper.sh: remove script
The only usage of this script was docs Makefile. Now that
it is using the new sphinx-build-wrapper, which has inside
the code from parallel-wrapper.sh, we can drop this script.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <c8ce0c78d0761370e4c9091a9423d9df9a357187.1758196090.git.mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 11:18:39 -06:00
Mauro Carvalho ChehabandJonathan Corbet abd61d1ff8 scripts: sphinx-pre-install: move it to tools/docs
As we're reorganizing the place where doc scripts are located,
move this one to tools/docs.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <5e2c40d3aebfd67b7ac7817f548bd1fa4ff661a8.1758196090.git.mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-09-18 11:17:18 -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
Vegard NossumandJonathan Corbet 0df41b1b94 docs: sphinx: remove SPDX/copyright comments from HTML output
Use Jinja2 comments instead of HTML comments for the SPDX and copyright
lines. This prevents them from appearing in the HTML output, which was
never the intention; the HTML output has its own copyright line at the
bottom of the document.

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250830170808.3911151-1-vegard.nossum@oracle.com
2025-09-03 15:50:51 -06:00
Mauro Carvalho ChehabandJonathan Corbet 118e54633c docs: kernel_include.py: drop some old behavior
The old behavior is not using anymore, so let's drop it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/00cdf3cbe2481aac875c543ded14b5eacfe071ec.1756732363.git.mchehab+huawei@kernel.org
2025-09-01 07:33:59 -06:00
Mauro Carvalho ChehabandJonathan Corbet 8dbb1779ae docs: kernel_include.py: fix an issue when O= is used
As reported by Stephen, building docs with O= is now
broken. Fix it by ensuring that it will seek files under
Kernel source tree.

The original logic was defined to accept including files
under Documentation/output. The new logic doesn't need it
anymore for media, but it might still be useful to preserve
the previous behavior. So, I ended preserving it.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/all/20250901142639.4de35a11@canb.auug.org.au/
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/da91980ce42f31730dc982920167b2757b9d2769.1756732363.git.mchehab+huawei@kernel.org
2025-09-01 07:33:59 -06:00
Mauro Carvalho ChehabandJonathan Corbet aebcc3009e docs: sphinx: drop parse-headers.pl
Now that we have a replacement in place, drop the old version.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/d3a5397df44e53b02fa62f782d1e7ce6e08ed04f.1755872208.git.mchehab+huawei@kernel.org
2025-08-29 15:54:43 -06:00
Mauro Carvalho ChehabandJonathan Corbet a49adfab49 docs: kernel_include.py: document all supported parameters
As we're actually a fork of Sphinx Include, update its
docstring to contain the documentation for the actual
implemented parameters.

Let's use :param: for parameters, as defined at:
https://sphinx-rtd-tutorial.readthedocs.io/en/latest/docstrings.html

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/f193160889a2dc296b4df2cc7ebc9934d717ccef.1755872208.git.mchehab+huawei@kernel.org
2025-08-29 15:54:43 -06:00