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2017-01-09docs: sphinx-extensions: make rstFlatTable work with docutils 0.13Dmitry Shachnev
commit 217e2bfab22e740227df09f22165e834cddd8a3b upstream. In docutils 0.13, the return type of get_column_widths method of the Table directive has changed [1], which breaks our flat-table directive and leads to a TypeError when trying to build the docs [2]. This patch adds support for the new return type, while keeping support for older docutils versions too. [1] https://sourceforge.net/p/docutils/patches/120/ [2] https://sourceforge.net/p/docutils/bugs/303/ Signed-off-by: Dmitry Shachnev <mitya57@debian.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-19Merge tag 'docs-next' of git://git.lwn.net/linux.git into patchworkMauro Carvalho Chehab
Merge back from docs-next in order to get the cdomain extension. With such extension, the number of warnings when building docs in nitpick mode reduced from 22 to 2 warnings. * docs-next/docs-next: docs/driver-model: fix typo DMA-API-HOWTO: <asm/generic/scatterlist.h> is no more doc-rst:c-domain: function-like macros arguments doc-rst:c-domain: fix sphinx version incompatibility Documentation/filesystems: Fixed typo docs: Don't format internal MPT docs docs: split up serial-interfaces.rst docs: Pull the HSI documentation together docs: Special-case function-pointer parameters in kernel-doc docs: make kernel-doc handle varargs properly x86: fix memory ranges in mm documentation documentation/scsi: Remove nodisconnect parameter doc: ioctl: Add some clarifications to botching-up-ioctls docs: split up the driver book Docs: sphinxify device-drivers.tmpl
2016-09-16doc-rst:c-domain: function-like macros argumentsMarkus Heiser
Handle signatures of function-like macros well. Don't try to deduce arguments types of function-like macros. Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-09-16doc-rst:c-domain: fix sphinx version incompatibilityMarkus Heiser
The self.indexnode's tuple has changed in sphinx version 1.4, from a former 4 element tuple to a 5 element tuple. https://github.com/sphinx-doc/sphinx/commit/e6a5a3a92e938fcd75866b4227db9e0524d58f7c Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-09-09[media] docs-rst: parse-headers.pl: use the C domain for cross-referencesMauro Carvalho Chehab
Instead of keep using the normal reference, move to the C domain ones. Using C domains everywhere will allow cross-references between kAPI and uAPI docs. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-09[media] docs-rst: parse-headers.pl: make debug a command line optionMauro Carvalho Chehab
Add a parser for the --debug option, in order to allow seeing what the parser is doing. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-01docs: sphinx-extensions: add metadata parallel-safeMarkus Heiser
The setup() function of a Sphinx-extension can return a dictionary. This is treated by Sphinx as metadata of the extension [1]. With metadata "parallel_read_safe = True" a extension is marked as save for "parallel reading of source". This is needed if you want build in parallel with N processes. E.g.: make SPHINXOPTS=-j4 htmldocs will no longer log warnings like: WARNING: the foobar extension does not declare if it is safe for parallel reading, assuming it isn't - please ask the extension author to check and make it explicit. Add metadata to extensions: * kernel-doc * flat-table * kernel-include [1] http://www.sphinx-doc.org/en/stable/extdev/#extension-metadata Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Tested-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-08-22doc-rst: moved *duplicate* warnings to nitpicky modeMarkus Heiser
Moved the *duplicate C object description* warnings for function declarations in the nitpicky mode. In nitpick mode, you can suppress those warnings (e.g. ioctl) with:: nitpicky = True nitpick_ignore = [ ("c:func", "ioctl"), ] See Sphinx documentation for the config values for ``nitpick`` and ``nitpick_ignore`` [1]. With this change all the ".. cpp:function:: int ioctl(..)" descriptions (found in the media book) can be migrated to ".. c:function:: int ioctl(..)", without getting any warnings. E.g.:: .. cpp:function:: int ioctl( int fd, int request, struct cec_event *argp ) .. c:function:: int ioctl( int fd, int request, struct cec_event *argp ) The main effect, is that we get those *CPP-types* back into Sphinx's C- namespace and we need no longer to distinguish between c/cpp references, when we refer a function like the ioctl. [1] http://www.sphinx-doc.org/en/stable/config.html?highlight=nitpick#confval-nitpicky Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-08-22doc-rst:c-domain: ref-name of a function declarationMarkus Heiser
Add option 'name' to the "c:function:" directive. With option 'name' the ref-name of a function can be modified. E.g.:: .. c:function:: int ioctl( int fd, int request ) :name: VIDIOC_LOG_STATUS The func-name (e.g. ioctl) remains in the output but the ref-name changed from ``ioctl`` to ``VIDIOC_LOG_STATUS``. The index entry for this function is also changed to ``VIDIOC_LOG_STATUS`` and the function can now referenced by:: :c:func:`VIDIOC_LOG_STATUS` Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-08-22doc-rst: add boilerplate to customize c-domainMarkus Heiser
Add a sphinx-extension to customize the sphinx c-domain. No functional changes right yet, just the boilerplate code. Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> [ jc: coding-style tweak ] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-08-18docs-rst: parse-heraders.pl: escape LaTeX charactersMauro Carvalho Chehab
Let's escape the LaTeX characters, to avoid troubles when outputing them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-08-14doc-rst: generic way to build only sphinx sub-foldersMarkus Heiser
Add a generic way to build only a reST sub-folder with or without a individual *build-theme*. * control *sub-folders* by environment SPHINXDIRS * control *build-theme* by environment SPHINX_CONF Folders with a conf.py file, matching $(srctree)/Documentation/*/conf.py can be build and distributed *stand-alone*. E.g. to compile only the html of 'media' and 'gpu' folder use:: make SPHINXDIRS="media gpu" htmldocs To use an additional sphinx-build configuration (*build-theme*) set the name of the configuration file to SPHINX_CONF. E.g. to compile only the html of 'media' with the *nit-picking* build use:: make SPHINXDIRS=media SPHINX_CONF=conf_nitpick.py htmldocs With this, the Documentation/conf.py is read first and updated with the configuration values from the Documentation/media/conf_nitpick.py. Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-07-23Merge branch 'docs-next' of git://git.lwn.net/linux into topic/docs-nextMauro Carvalho Chehab
* 'docs-next' of git://git.lwn.net/linux: doc-rst: kernel-doc: fix handling of address_space tags Revert "doc/sphinx: Enable keep_warnings" doc-rst: kernel-doc directive, fix state machine reporter docs: deprecate kernel-doc-nano-HOWTO.txt doc/sphinx: Enable keep_warnings Documentation: add watermark_scale_factor to the list of vm systcl file kernel-doc: Fix up warning output docs: Get rid of some kernel-documentation warnings
2016-07-20doc-rst: kernel-doc directive, fix state machine reporterMarkus Heiser
Add a reporter replacement that assigns the correct source name and line number to a system message, as recorded in a ViewList. [1] http://mid.gmane.org/CAKMK7uFMQ2wOp99t-8v06Om78mi9OvRZWuQsFJD55QA20BB3iw@mail.gmail.com Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Tested-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-07-09doc-rst: parse-headers: remove trailing spacesMauro Carvalho Chehab
The function that replace references add a "\ " at the end of references, to avoid the ReST markup parser to not identify them as references. That works fine except for the end of lines, as a sequence of { '\', ' ', '\n' } characters makes Sphinx to ignore the end of line. So, strip those escape/spaces at the end of lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08doc-rst: add kernel-include directiveMarkus Heiser
The kernel-include directive is needed to include the auto generated rst content from a build (pre-) process. E.g. the linux_tv Makefile generates intermediate reST-files from header files. Since there is a O= option: make O=dir [targets] Locate all output files in "dir" We need to include intermediate reST files from arbitrary (O=/tmp/foo) locations: The 'kernel-include' reST-directive is a replacement for the 'include' directive. The 'kernel-include' directive expand environment variables in the path name and allows to include files from arbitrary locations. .. hint:: Including files from arbitrary locations (e.g. from '/etc') is a security risk for builders. This is why the 'include' directive from docutils *prohibit* pathnames pointing to locations *above* the filesystem tree where the reST document with the include directive is placed. Substrings of the form $name or ${name} are replaced by the value of environment variable name. Malformed variable names and references to non-existing variables are left unchanged. Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: parse-headers: don't do substituition referencesMauro Carvalho Chehab
Add one extra escape character to avoid those warnings: Documentation/linux_tv/videodev2.h.rst:6: WARNING: Inline substitution_reference start-string without end-string. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: parse-headers: add an option to ignore enum symbolsMauro Carvalho Chehab
At videodev2.h, we have hundreds of symbols that don't currently have a reference yet. Let's ignore for how, while we don't improve those cross-refs. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: parse-headers: better handle comments at the source codeMauro Carvalho Chehab
We should not let comments to mangle with the symbols parsing. Unfortunately, videodev2.h has lots of those in the middle of enums and structs. So, we need to improve our parser to discard them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: parse-headers: fix multiline typedef handlerMauro Carvalho Chehab
The typedef handler should do two things to be generic: 1) parse typedef enums; 2) accept both possible syntaxes: typedef struct foo { .. } foo_t; typedef struct { .. } foo_t; Unfortunately, this is needed to parse some legacy DVB files, like dvb/audio.h. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: parse-headers: better handle typedefsMauro Carvalho Chehab
When typedef is used on its multiline format, we need to also parse enum and struct in the same line. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: parse-headers: be more formal about the valid symbolsMauro Carvalho Chehab
Be more formal about the valid symbols that are expected by the parser, to match what c language expects. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: fix parsing comments and '{' on a separate lineMauro Carvalho Chehab
The dmx.h header has two things that causes the parser to break while handling enums: per-header enums and the '{' starts on a new line Both makes the parser to get lexical marks to be detected as if they were symbols. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-dst: parse-headers: highlight deprecated commentsMauro Carvalho Chehab
When something is deprecated, highlight it, as we want it to be clearer to the reader. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: parse-headers: improve delimiters to detect symbolsMauro Carvalho Chehab
As we had to escape the symbols for the ReST markup to not do the wrong thing, the logic to discover start/end of strings are not trivial. Improve the end delimiter detection, in order to highlight more occurrences of the strings. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-07doc-rst: add parse-headers.pl scriptMauro Carvalho Chehab
This script parses a header file and converts it into a parsed-literal block, creating references for ioctls, defines, typedefs, enums and structs. It also allow an external file to modify the rules, in order to fix the expressions. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-30doc-rst: flat-table directive - initial implementationMarkus Heiser
Implements the reST flat-table directive. The ``flat-table`` is a double-stage list similar to the ``list-table`` with some additional features: * column-span: with the role ``cspan`` a cell can be extended through additional columns * row-span: with the role ``rspan`` a cell can be extended through additional rows * auto span rightmost cell of a table row over the missing cells on the right side of that table-row. With Option ``:fill-cells:`` this behavior can changed from *auto span* to *auto fill*, which automaticly inserts (empty) list tables The *list tables* formats are double stage lists. Compared to the ASCII-art they migth be less comfortable for readers of the text-files. Their advantage is, that they are easy to create/modify and that the diff of a modification is much more meaningfull, because it is limited to the modified content. The initial implementation was taken from the sphkerneldoc project [1] [1] https://github.com/return42/sphkerneldoc/commits/master/scripts/site-python/linuxdoc/rstFlatTable.py Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de> [jc: fixed typos and misspellings in the docs] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-06-10Documentation/sphinx: add support for specifying extra export filesJani Nikula
Let the user specify file patterns where to look for the EXPORT_SYMBOLs in addition to the file with kernel-doc comments. This is directly based on the -export-file FILE option added to kernel-doc in "kernel-doc: add support for specifying extra files for EXPORT_SYMBOLs", but we extend that with globbing patterns in the Sphinx extension. The file patterns are added as options to the :export: and :internal: arguments of the kernel-doc directive. For example, to extract the documentation of exported functions from include/net/mac80211.h: .. kernel-doc:: include/net/mac80211.h :export: net/mac80211/*.c Without the file pattern, no exported functions would be found, as the EXPORT_SYMBOLs are placed in the various source files under net/mac80211. The matched files are also added as dependencies on the document in Sphinx, as they may affect the output. This is one of the reasons to do the globbing in the Sphinx extension instead of in scripts/kernel-doc. The file pattern remains optional, and is not needed if the kernel-doc comments and EXPORT_SYMBOLs are placed in the source file passed in as the main argument to the kernel-doc directive. This is the most common case across the kernel source tree. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-10Documentation/sphinx: use a more sensible string split in kernel-doc extensionJani Nikula
Using the default str.split doesn't return empty strings like the current version does. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-10Documentation/sphinx: remove unnecessary temporary variableJani Nikula
Leftover cruft. No functional changes. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-04doc/sphinx: Track line-number of starting blocksDaniel Vetter
Design is pretty simple: kernel-doc inserts breadcrumbs with line numbers, and sphinx picks them up. At first I went with a sphinx comment, but inserting those at random places seriously upsets the parser, and must be filtered. Hence why this version now uses "#define LINEO " since one of these ever escape into output it's pretty clear there is a bug. It seems to work well, and at least the 2-3 errors where sphinx complained about something that was not correct in kernel-doc text the line numbers matched up perfectly. v2: Instead of noodling around in the parser state machine, create a ViewList and parse it ourselves. This seems to be the recommended way, per Jani's suggestion. v3: - Split out ViewList pach. Splitting the kernel-doc changes from the sphinx ones isn't possible, since emitting the LINENO lines wreaks havoc with the rst formatting. We must filter them. - Improve the regex per Jani's suggestions, and compile it just once for speed. - Now that LINENO lines are eaten, also add them to function parameter descriptions. Much less content and offset than for in-line struct member descriptions, but still nice to know which exact continuation line upsets sphinx. - Simplify/clarify the line +/-1 business a bit. v4: Split out the scripts/kernel-doc changes and make line-numbers opt-in, as suggested by Jani. Cc: Jani Nikula <jani.nikula@intel.com> Cc: linux-doc@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-03doc/sphinx: Stop touching state_machine internalsDaniel Vetter
Instead of just forcefully inserting our kernel-doc input and letting the state machine stumble over it the recommended way is to create ViewList, parse that and then return the list of parsed nodes. Suggested by Jani. Cc: Jani Nikula <jani.nikula@intel.com> Cc: linux-doc@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-01doc/sphinx: Pass right filename as sourceDaniel Vetter
With this error output becomes almost readable. The line numbers are still totally bonghits, but that's a lot harder to pull out of kerneldoc. We'd essentially have to insert some special markers in the kernel-doc output, split the output along these markers and then insert each block separately using state_machine.insert_input(block, source, first_line) Cc: Jani Nikula <jani.nikula@intel.com> Cc: linux-doc@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-01Documentation/sphinx: fix kernel-doc extension on python3Jani Nikula
Reconcile differences between python2 and python3 on dealing with stdout, stderr from Popen. This fixes "name 'unicode' is not defined" errors on python3. We'll need to try to keep the extension working on both python-sphinx and python3-sphinx so we don't need two copies. Reported-and-tested-by: Marius Vlad <marius.c.vlad@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-05-30Documentation/sphinx: nicer referencing of struct in docbook->rst conversionJani Nikula
Add "struct" in the label of the reference. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-05-30sphinx: update docbook->rst conversion script match C domain specJani Nikula
Function references should include the parens (), struct references should not include "struct". Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-05-30sphinx: cheesy script to convert .tmpl filesJonathan Corbet
This script uses pandoc to convert existing DocBook template files to RST templates. A couple of sed scripts are need to massage things both before and after the conversion, but the result is then usable with no hand editing. [Jani: Change usage to tmplcvt <in> <out>. Fix escaping for docproc directives. Add support the new kernel-doc extension.] Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-05-30Documentation/sphinx: add Sphinx kernel-doc directive extensionJani Nikula
Add an extension to handle kernel-doc directives, to call kernel-doc according to the arguments and parameters given to the reStructuredText directive. The syntax for the kernel-doc directive is: .. kernel-doc:: FILENAME :export: :internal: :functions: FUNCTION [FUNCTION ...] :doc: SECTION TITLE Of the directive options export, internal, functions, and doc, currently only one option may be given at a time. The FILENAME is relative from the kernel source tree root. The extension notifies Sphinx about the document dependency on FILENAME, causing the document to be rebuilt when the file has been changed. Signed-off-by: Jani Nikula <jani.nikula@intel.com>