- The minimum Sphinx requirement has been raised to 2.4.4, following a
warning that was added in 6.2.
- Some reworking of the Documentation/process front page to, hopefully,
make it more useful.
- Various kernel-doc tweaks to, for example, make it deal properly with
__counted_by annotations.
- We have also restored a warning for documentation of nonexistent
structure members that disappeared a while back. That had the delightful
consequence of adding some 600 warnings to the docs build. A sustained
effort by Randy, Vegard, and myself has addressed almost all of those,
bringing the documentation back into sync with the code. The fixes are
going through the appropriate maintainer trees.
- Various improvements to the HTML rendered docs, including automatic links
to Git revisions and a nice new pulldown to make translations easy to
access.
- Speaking of translations, more of those for Spanish and Chinese.
...plus the usual stream of documentation updates and typo fixes.
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Merge tag 'docs-6.8' of git://git.lwn.net/linux
Pull documentation update from Jonathan Corbet:
"Another moderately busy cycle for documentation, including:
- The minimum Sphinx requirement has been raised to 2.4.4, following
a warning that was added in 6.2
- Some reworking of the Documentation/process front page to,
hopefully, make it more useful
- Various kernel-doc tweaks to, for example, make it deal properly
with __counted_by annotations
- We have also restored a warning for documentation of nonexistent
structure members that disappeared a while back. That had the
delightful consequence of adding some 600 warnings to the docs
build. A sustained effort by Randy, Vegard, and myself has
addressed almost all of those, bringing the documentation back into
sync with the code. The fixes are going through the appropriate
maintainer trees
- Various improvements to the HTML rendered docs, including automatic
links to Git revisions and a nice new pulldown to make translations
easy to access
- Speaking of translations, more of those for Spanish and Chinese
... plus the usual stream of documentation updates and typo fixes"
* tag 'docs-6.8' of git://git.lwn.net/linux: (57 commits)
MAINTAINERS: use tabs for indent of CONFIDENTIAL COMPUTING THREAT MODEL
A reworked process/index.rst
ring-buffer/Documentation: Add documentation on buffer_percent file
Translated the RISC-V architecture boot documentation.
Docs: remove mentions of fdformat from util-linux
Docs/zh_CN: Fix the meaning of DEBUG to pr_debug()
Documentation: move driver-api/dcdbas to userspace-api/
Documentation: move driver-api/isapnp to userspace-api/
Documentation/core-api : fix typo in workqueue
Documentation/trace: Fixed typos in the ftrace FLAGS section
kernel-doc: handle a void function without producing a warning
scripts/get_abi.pl: ignore some temp files
docs: kernel_abi.py: fix command injection
scripts/get_abi: fix source path leak
CREDITS, MAINTAINERS, docs/process/howto: Update man-pages' maintainer
docs: translations: add translations links when they exist
kernel-doc: Align quick help and the code
MAINTAINERS: add reviewer for Spanish translations
docs: ignore __counted_by attribute in structure definitions
scripts: kernel-doc: Clarify missing struct member description
..
The kernel-feat directive passes its argument straight to the shell.
This is unfortunate and unnecessary.
Let's always use paths relative to $srctree/Documentation/ and use
subprocess.check_call() instead of subprocess.Popen(shell=True).
This also makes the code shorter.
This is analogous to commit 3231dd5862 ("docs: kernel_abi.py: fix
command injection") where we did exactly the same thing for
kernel_abi.py, somehow I completely missed this one.
Link: https://fosstodon.org/@jani/111676532203641247
Reported-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240110174758.3680506-1-vegard.nossum@oracle.com
The 'alabaster' theme dropped support for Sphinx < v3.4:
0.7.14 – 2024-01-08
* Dropped support for Python 3.8 and earlier.
* Dropped support for Sphinx 3.3 and earlier.
[...]
(Source: https://alabaster.readthedocs.io/en/latest/changelog.html)
This manifests as an error when running 'make htmldocs' in a virtualenv
constructed from Documentation/sphinx/requirements.txt:
Sphinx version error:
The alabaster extension used by this project needs at least Sphinx v3.4; it therefore cannot be built with this version.
Raising the Sphinx version is not really a good option at this point,
since 3.x through 6.x have horrible performance regressions (7.x still
does, but not quite as bad).
Instead, constrain the 'alabaster' package to versions that still support
Sphinx 2.4.4.
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Link: https://lore.kernel.org/r/20240110104646.3647600-1-vegard.nossum@oracle.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The kernel-abi directive passes its argument straight to the shell.
This is unfortunate and unnecessary.
Let's always use paths relative to $srctree/Documentation/ and use
subprocess.check_call() instead of subprocess.Popen(shell=True).
This also makes the code shorter.
Link: https://fosstodon.org/@jani/111676532203641247
Reported-by: Jani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231231235959.3342928-2-vegard.nossum@oracle.com
Commit f061c9f7d0 ("Documentation: Document each netlink family") added
a new Python script that is invoked during 'make htmldocs' and which reads
the netlink YAML spec files.
Using the virtualenv from scripts/sphinx-pre-install, we get this new
error wen running 'make htmldocs':
Traceback (most recent call last):
File "./tools/net/ynl/ynl-gen-rst.py", line 26, in <module>
import yaml
ModuleNotFoundError: No module named 'yaml'
make[2]: *** [Documentation/Makefile:112: Documentation/networking/netlink_spec/rt_link.rst] Error 1
make[1]: *** [Makefile:1708: htmldocs] Error 2
Fix this by adding 'pyyaml' to requirements.txt.
Note: This was somehow present in the original patch submission:
<https://lore.kernel.org/all/20231103135622.250314-1-leitao@debian.org/>
I'm not sure why the pyyaml requirement disappeared in the meantime.
Fixes: f061c9f7d0 ("Documentation: Document each netlink family")
Cc: Breno Leitao <leitao@debian.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a new Sphinx extension that knows about the translations of kernel
documentation and can insert links to the translations at the top of
the document.
It basically works like this:
1. Register a new node type, LanguagesNode.
2. Register a new transform, TranslationsTransform, that inserts a new
LanguageNode at the top of every document. The LanguageNode contains
"pending references" to translations of the document. The key here
is that these are pending (i.e. unresolved) references that may or
may not actually exist.
3. Register a 'doctree-resolved' event that iterates over all the
LanguageNode nodes. Any unresolved references are filtered out; the
list of resolved references is passed to the 'translations.html'
template and rendered as an HTML node (if HTML output is selected).
Testing: make htmldocs, make latexdocs with Sphinx v4.3.2 and Firefox.
v2:
- changed bar into a drop-down menu
- fixed language labels
- fixed hysteresis reported by Akira Yokosawa
Cc: Federico Vaga <federico.vaga@vaga.pv.it>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Akira Yokosawa <akiyks@gmail.com>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231215123701.2712807-1-vegard.nossum@oracle.com
Commit 31abfdda65 (docs: Deprecate use of Sphinx < 2.4.x) in 6.2 added a
warning that support for older versions of Sphinx would be going away.
There have been no complaints, so the time has come. Raise the minimum
Sphinx version to 2.4.4 and clean out some compatibility code that we no
longer need.
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/874jgs47fq.fsf@meer.lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There aren't a ton of references to commits in the documentation, but
they do exist, and we can use automarkup to linkify them to make them
easier to follow.
Use something like this to find references to commits:
git grep -P 'commit.*[0-9a-f]{8,}' Documentation/
Also fix a few of these to standardize on the exact format that is
already used in changelogs.
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231027115420.205279-1-vegard.nossum@oracle.com
Remove the repeated word "the" in comments.
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20231018023046.30022-1-hanchunchao@inspur.com>
Sphinx 7.2+ is switching to using pathlib.Path
instead of str to represent paths. This fixes the
current deprecation warnings and eventual breakage.
This conversion will be a no-op when using older
Sphinx versions.
Signed-off-by: Oliver Faso <erer1243@gmail.com>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230910040811.53046-1-erer1243@gmail.com
Python 3.6 introduced a DeprecationWarning for invalid escape sequences.
This is upgraded to a SyntaxWarning in Python 3.12, and will eventually
be a syntax error.
Fix these now to get ahead of it before it's an error.
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Message-ID: <20230912060801.95533-3-bgray@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This line was initially placed in {# jinja2 comments #}, but that led to an
"invalid token" complaint from spdxcheck.py. Rather than fix the script
for a usage we'll likely never see anywhere else, just switch to an HTML
comment, which spdxcheck.py thinks is fine.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add a new sidebar template that creates a more RTD-like "fisheye" view of
the current place in the document hierarchy. It is far from ideal, but
some readers may find it better for navigating through the documentation as
a whole.
Add some CSS trickery as well to make the table of contents less intrusive
when viewing the pages on a small screen.
Reviewed-by: Akira Yokosawa <akiyks@gmail.com>
Reviewed-by: David Gow <davidgow@google.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Sphinx 6.0 removed the execfile_() function, which we use as part of the
configuration process. They *did* warn us... Just open-code the
functionality as is done in Sphinx itself.
Tested (using SPHINX_CONF, since this code is only executed with an
alternative config file) on various Sphinx versions from 2.5 through 6.0.
Reported-by: Martin Liška <mliska@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
We don't default to the RTD theme anymore, so sphinx-pre-install need not
insist on installing it.
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
On distros whose texlive packaging is fine-grained, texlive-xecjk
can be installed/removed independently of other texlive packages.
Conditionally loading xeCJK depending only on the existence of the
"Noto Sans CJK SC" font might end up in xelatex error of
"xeCJK.sty not found!".
Improve the situation by testing existence of xeCJK.sty before
loading it.
This is useful on RHEL 9 and its clone distros where texlive-xecjk
doesn't work at the moment due to a missing dependency [1].
"make pdfdocs" for non-CJK contents should work after removing
texlive-xecjk.
Link: [1] https://bugzilla.redhat.com/show_bug.cgi?id=2086254
Fixes: 398f7abdcb ("docs: pdfdocs: Pull LaTeX preamble part out of conf.py")
Cc: stable@vger.kernel.org # v5.18+
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/c24c2a87-70b2-5342-bcc9-de467940466e@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The automarkup code tries to look up symbols once as a function, and once
as a macro. The Sphinx C domain code, though, totally ignores that
distinction and will return the same results either way. So just look
things up once and be done with it; the resulting output does not change,
but htmldocs build time drops by about 5%.
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/20220630163630.714673-3-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The automarkup code tries to create a lot of cross-references that don't
exist. Cross-reference lookups are expensive, especially in later versions
of Sphinx, so there is value in avoiding unnecessary ones. Remember
attempts that failed and do not retry them.
This improves the htmldocs build time by 5-10% depending on the phase of
the moon and other factors.
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/20220630163630.714673-2-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
It turns out that networking.pdf has exceeded 100 chapters and
titles of chapters >= 100 collide with their counts in its table
of contents (TOC).
Increase relevant params by 0.6em in the preamble to avoid such
ugly collisions.
While at it, fix a typo in comment (subsection).
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/bdb60ba3-7813-47d0-74f9-7c31dd912d95@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
jinja2 release 3.1.0 (March 24, 2022) broke Sphinx<4.0.
This looks like the result of deprecating Python 3.6.
It has been tested against Sphinx 4.3.0 and later.
Setting an upper limit of <3.1 to junja2 can unbreak Sphinx<4.0
including Sphinx 2.4.4.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/7dbff8a0-f4ff-34a0-71c7-1987baf471f9@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Ensure that Sphinx-build will handle the files parsed by
get_abi.pl as dependencies. This way, if they are touched,
the ABI output will be regenerated.
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/10bc3d3bc74f514a539cd3b48b9d287d2b6f99e2.1648290305.git.mchehab@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
SVG -> PDF conversion is not required in "make htmldocs".
It is pointless to always warn of a missing converter.
Demote the log message in setupTools() to verbose.
For "make pdfdocs" (or "make latexdocs"), promote the dynamic
message of "include SVG raw" to a warn.
Expand the message and recommend installing Inkscape or
ImageMagick.
Fixes: 8ccd05697a ("docs: sphinx/kfigure.py: Use inkscape(1) for SVG -> PDF conversion")
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-doc@vger.kernel.org
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/c80e1481-10d4-7151-fe59-e846259eb0d4@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Use past tense as the fonts can be installed after the fact.
Add suggestion to install "Noto Sans CJK" and "Noto Serif CJK"
font families. ("Noto Serif CJK" is optional.)
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/dfefa601-c58d-c86c-953f-5e4454db9409@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Expand comments in LaTeX code and mention some of important points
told in changelogs of conf.py changes.
Hopefully they can help future contributors in this area.
No code change involved.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/bce9261b-1950-3146-07b2-07bd2ec79158@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Quote from Jon's remark [1]:
I do notice that Documentation/conf.py is getting large and
unapproachable. At some future point, it might be nice to pull
all of the latex stuff out into a separate file where it won't
scare people who stumble into it by accident.
Pull LaTeX preamble settings added since commit 3b4c963243 ("docs:
conf.py: adjust the LaTeX document output") out into
sphinx/kerneldoc-preamble.sty.
It will be copied to the build directory by the added
"latex_additional_files" setting in conf.py.
As a bonus, LaTeX/TeX code can be maintained without escaping backslashes.
To compensate the loss of change history in sphinx/kerneldoc-preamble.sty,
here is a list of changes made in conf.py:
- f7ebe6b769 ("docs: Activate exCJK only in CJK chapters")
- 0afd4df0d1 ("docs: pdfdocs: Prevent column squeezing by tabulary")
- 659653c9e5 ("docs: pdfdocs: Refactor config for CJK document")
- e291ff6f5a ("docs: pdfdocs: Add CJK-language-specific font settings")
- 7eb368cc31 ("docs: pdfdocs: Choose Serif font as CJK mainfont if possible")
- 35382965bd ("docs: pdfdocs: Preserve inter-phrase space in Korean translations")
- 77abc2c230 ("docs: pdfdocs: One-half spacing for CJK translations")
- 788d28a257 ("docs: pdfdocs: Permit AutoFakeSlant for CJK fonts")
- 29ac982235 ("docs: pdfdocs: Teach xeCJK about character classes of quotation marks")
- 7c5c18bdb6 ("docs: pdfdocs: Fix typo in CJK-language specific font settings")
- aa872e0647 ("docs: pdfdocs: Adjust \headheight for fancyhdr")
- 8716ef413a ("docs: pdfdocs: Tweak width params of TOC")
- 66939df539 ("docs: pdfdocs: Switch default CJK font to KR variants")
- 7b686a2ea1 ("docs: pdfdocs: Enable CJKspace in TOC for Korean titles")
- 5d9158e3c7 ("docs/translations: Skip CJK contents if suitable fonts not found")
- b774cc4631 ("docs: pdfdocs: Move CJK monospace font setting to main conf.py")
[1]: https://lore.kernel.org/all/87zgmr66cn.fsf@meer.lwn.net/
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/aaa9dca1-27c0-c414-77f3-c5587db0cc5b@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Depending on its version, distro config, and system-setup type,
inkscape(1) emits various warning messages which are harmless in
command-line uses.
List of such warning messages (incomplete, long ones wrapped):
- Gtk-Message: hh:mm:ss.nnn: Failed to load module "canberra-gtk-module"
- Unable to init server: Could not connect: Connection refused
- Failed to get connection
- ** (inkscape:xxx): CRITICAL **: hh:mm:ss.nnn: dbus_g_proxy_new_for_name:
assertion 'connection != NULL' failed
- ** (inkscape:xxx): CRITICAL **: hh:mm:ss.nnn: dbus_g_proxy_call:
assertion 'DBUS_IS_G_PROXY (proxy)' failed
- ** (inkscape:xxx): CRITICAL **: hh:mm:ss.nnn: dbus_g_connection_register_g_object:
assertion 'connection != NULL' failed
- ** (inkscape:xxx): WARNING **: hh:mm:ss.nnn:
Fonts dir '/usr/share/inkscape/fonts' does not exist and will be ignored.
To avoid unnecessary anxiety, capture the message and output it via
kernellog.verbose or kernellog.warn depending on the exit code.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/e26a7b53-9155-8394-4a31-6006379b65a5@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Using convert(1) of ImageMagick for SVG -> PDF conversion results in
PDFs containing raster (bitmap) images which sometimes look blurry.
Ideally speaking, SVG to PDF conversion should retain vector graphics
in SVG.
rsvg-convert(1) can do such conversions with regard to SVG files
generated by dot(1).
Unfortunately, rsvg-convert(1) does not cover some of SVG features
specific to Inkscape.
inkscape(1) of Inkscape naturally covers such SVG features.
So add a route in svg2pdf() so that inkscape(1) is used when it is
available.
Note:
After this change, if you have Inkscape installed, ImageMagick nor
librsvg are not required.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/3eea2a8d-c52d-ee07-cf7b-83784c6f6e4b@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
To prevent any regression on existing build systems, limit the
fallback of converting DOT -> raster PDF only when both of the
following conditions are met.
o dot(1) doesn't support -Tpdf
o rsvg-convert(1) is not found
While we are here, add kernellog.verbose messages related to
rsvg-convert, 'dot -Tpdf', and 'dot -Tsvg' commands.
Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e76f61e1-7366-ba00-b119-8ea6a2499861@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
On openSUSE, dot(1) command does not support direct PDF output.
On other distros, generated PDF images have unnecessarily wide margins,
especially for small graphs.
By using dot(1) for DOT -> SVG, then rsvg-convert(1) for SVG -> PDF,
more optimal PDF images can be obtained, with the bonus of improved
portability across various distros.
Add rules in kfigure.py so that the above mentioned route is taken
when rsvg-convert(1) is available.
Note that rsvg-convert(1) is recommended by sphinx_pre_install.
So it is most likely that existing systems for building pdfdocs have
rsvg-convert(1) installed.
Note:
SVG features supported by rsvg-convert(1) vary depending on its
version and distro config.
For example, the one found on Ubuntu Bionic (version 2.40.20) does
poor job in rendering some of SVG files drawn by Inkscape.
SVG files generated by dot(1) are converted nicely even with such
old versions of rsvg-convert.
So this change does not affect the quality of such figures in any
way.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/15b56dd3-081a-2469-c3a4-dfc1ca4c6c2d@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since commit d18b01789a ("docs: Add automatic cross-reference for
documentation pages"), references that were already explicitly defined
with "ref:" and referred to other pages with a path have been doubled.
This is reported as the following error by Firefox:
Start tag "a" seen but an element of the same type was already open.
End tag "a" violates nesting rules.
As well as the invalid HTML, this also obscures the URI fragment links
to subsections because the second link overrides the first. For example
on the page admin-guide/hw-vuln/mds.html the last link should be to the
"Default Mitigations" subsection using a # URI fragment:
admin-guide/hw-vuln/l1tf.html#default-mitigations
But it is obsured by a second link to the whole page:
admin-guide/hw-vuln/l1tf.html
The full HTML with the double <a> tags looks like this:
<a class="reference internal" href="l1tf.html#default-mitigations">
<span class="std std-ref">
<a class="reference internal" href="l1tf.html">
<span class="doc">L1TF - L1 Terminal Fault</span>
</a>
</span>
</a>
After this commit, there is only a single link:
<a class="reference internal" href="l1tf.html#default-mitigations">
<span class="std std-ref">Documentation/admin-guide/hw-vuln//l1tf.rst</span>
</a>
Now that the second link is removed, the browser correctly jumps to the
default-mitigations subsection when clicking the link.
The fix is to check that nodes in the document to be modified are not
already references. A reference is counted as any text that is a
descendant of a reference type node. Only plain text should be converted
to new references, otherwise the doubling occurs.
Testing
=======
* Test that the build stdout is the same (ignoring ordering), and that
no new warnings are printed.
* Diff all .html files and check that the only modifications occur
to the bad double links.
* The auto linking of bare references to pages without "ref:" is still
working.
Fixes: d18b01789a ("docs: Add automatic cross-reference for documentation pages")
Reviewed-by: Nícolas F. R. A. Prado <n@nfraprado.net>
Signed-off-by: James Clark <james.clark@arm.com>
Link: https://lore.kernel.org/r/20220105143640.330602-2-james.clark@arm.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
sphinx_rtd_theme 0.5.2 has "docutils<0.17" in its requirements.
docutils 0.17 released this April caused regression in
sphinx_rtd_theme 0.5.1 [1].
By removing docutils and moving sphinx_rtd_theme before Sphinx in
requirements.txt, the requirement of "docutils<0.17" can be met
naturally.
[1]: https://github.com/readthedocs/sphinx_rtd_theme/issues/1112
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/75f14c88-6091-1072-41cb-16b886aee5a0@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Previously, a cross-reference to another document could only be created
by writing the full path to the document starting from the
Documentation/ directory.
Extend this to also allow relative paths to be used. A relative path
would be just the path, like ../filename.rst, while the absolute path
still needs to start from Documentation, like Documentation/filename.rst.
As part of this change, the .rst extension is now required for both
types of paths, since not requiring it would cause the regex to be too
generic.
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Link: https://lore.kernel.org/r/20210128010028.58541-2-nfraprado@protonmail.com
[jc: Tweaked the regex to recognize .txt too]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The kernel build system as a whole is dropping support for Python 2, so we
should do the same. The effects are rather small, especially considering
that much of the deleted code was not doing anything under any version of
Python anyway.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
As promised, drop support for some ancient sphinx releases, along with a
lot of the cruft that was required to make that support work.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
- Use /usr/bin/env for shebang lines in scripts
- Remove useless -Wnested-externs warning flag
- Update documents
- Refactor log handling in modpost
- Stop building modules without MODULE_LICENSE() tag
- Make the insane combination of 'static' and EXPORT_SYMBOL an error
- Improve genksyms to handle _Static_assert()
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Merge tag 'kbuild-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Use /usr/bin/env for shebang lines in scripts
- Remove useless -Wnested-externs warning flag
- Update documents
- Refactor log handling in modpost
- Stop building modules without MODULE_LICENSE() tag
- Make the insane combination of 'static' and EXPORT_SYMBOL an error
- Improve genksyms to handle _Static_assert()
* tag 'kbuild-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
Documentation/kbuild: Document platform dependency practises
Documentation/kbuild: Document COMPILE_TEST dependencies
genksyms: Ignore module scoped _Static_assert()
modpost: turn static exports into error
modpost: turn section mismatches to error from fatal()
modpost: change license incompatibility to error() from fatal()
modpost: turn missing MODULE_LICENSE() into error
modpost: refactor error handling and clarify error/fatal difference
modpost: rename merror() to error()
kbuild: don't hardcode depmod path
kbuild: doc: document subdir-y syntax
kbuild: doc: clarify the difference between extra-y and always-y
kbuild: doc: split if_changed explanation to a separate section
kbuild: doc: merge 'Special Rules' and 'Custom kbuild commands' sections
kbuild: doc: fix 'List directories to visit when descending' section
kbuild: doc: replace arch/$(ARCH)/ with arch/$(SRCARCH)/
kbuild: doc: update the description about kbuild Makefiles
Makefile.extrawarn: remove -Wnested-externs warning
tweewide: Fix most Shebang lines
On the update of Sphinx version to 2.4.4, the "six" library won't be
installed automatically. (which is required by kfigure.py)
Main reason of this issue were occurred by the requirements changed from
the sphinx library. In Sphinx v1.7.9, six was listed on the
install_requires, but it has been removed since 2.x
The kfigure.py uses six library explicitly, adding six to
requirements.txt seems reasonable
Signed-off-by: JaeSang Yoo <jsyoo5b@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20201208014628.GA1361@JSYoo5B-Base.localdomain
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Change every shebang which does not need an argument to use /usr/bin/env.
This is needed as not every distro has everything under /usr/bin,
sometimes not even bash.
Signed-off-by: Finn Behrens <me@kloenk.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Sphinx 3.1 introduced namespaces for C cross-references. With this,
each C domain type/function declaration is put inside the namespace that
was active at the time of its declaration.
Add support for automatic cross-referencing inside C namespaces by
checking whether the corresponding source file had a C namespace Sphinx
directive, and if so, try cross-referencing inside of it before going to
the global scope.
This assumes there's only one namespace (if any) per rst file.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Link: https://lore.kernel.org/r/20201117021107.214704-1-nfraprado@protonmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
silence in V=0 builds.
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Merge tag 'docs-5.10-3' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A small number of fixes, plus a build tweak to respect the desire for
silence in V=0 builds"
* tag 'docs-5.10-3' of git://git.lwn.net/linux:
docs: fix automarkup regression on Python 2
documentation: arm: sunxi: add Allwinner H6 documents
scripts: kernel-doc: split typedef complex regex
scripts: kernel-doc: fix typedef parsing
docs: Makefile: honor V=0 for docs building
It turns out that the Python 2 re module lacks the ASCII flag, so don't try
to use it there.
Fixes: f66e47f98c ("docs: automarkup.py: Fix regexes to solve sphinx 3 warnings")
Reported-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Now that the stable ABI files are compatible with ReST,
parse them without converting complex descriptions as literal
blocks nor escaping special characters.
Please notice that escaping special characters will probably
be needed at descriptions, at least for the asterisk character.
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/59ccbaa75ff05f23e701dd9a0bbe118e9343a553.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
