This just add a index.rst for trace subsystem. More docs will
be added later.

Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: NChangbin Du <changbin.du@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Add my name to kernel driver statement.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

When Co-Developed-by tag was added, docs were only added to
Documention/process/5.Posting.rst and were not added to
Documention/process/submitting-patches.rst

Add documentation to Documention/process/submitting-patches.rst
Signed-off-by: NTobin C. Harding <me@tobin.cc>
[jc: tweaked commas in the subheading]
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Sphinx 1.7 removed sphinx.util.compat.Directive so people
who have upgraded cannot build the documentation.  Switch to
docutils.parsers.rst.Directive which has been available since
docutils 0.5 released in 2009.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1083694Co-developed-by: NTakashi Iwai <tiwai@suse.de>
Acked-by: NJani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: NMatthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Right now, the description of the rapidio sysfs interfaces is in
Documentation/rapidio/sysfs.txt. Since these are a part of the ABI, they
should be in Documentation/ABI along with the rest.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Acked-by: NAlexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Add documentation for sysfs interface of adp8860 series backlight
devices by reading through code and git commits.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NDaniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Add documentation for sysfs interface of adp5520/adp5501 analog devices
backlight driver by reading code and looking through git commit logs.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NDaniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Add documentation for sysfs interfaces of Texas Instruments lm3639
backlight + flash led driver chip by looking through git commits and
reading code.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Acked-by: NDaniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Documentation has been compiled from git logs and by reading through
code.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Add documentation for core and hardware specific infiniband interfaces.
The descriptions have been collected from git commit logs, reading
through code and data sheets. Some drivers have incomplete doc and are
annotated with the comment '[to be documented]'.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Reviewed-by: NHal Rosenstock <hal@mellanox.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Documentation has been compiled from git commit logs and descriptions in
Documentation/aoe/aoe.txt. This should be useful for scripting and
tracking changes in the ABI.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Document sysfs attributes of s6e63m0 lcd panel driver by looking through
git logs and reading code.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Clean up the sysfs documentation such that it is in the same format as
described in Documentation/ABI/README. Mainly, the patch moves the
attribute names to the 'What:' field. This might be useful for scripting
and tracking changes in the ABI.
Signed-off-by: NAishwarya Pant <aishpant@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Currently there is no automated checking for kernel-doc comments except
running 'kernel-doc -v -none <filename>'. Mention the possibility to run
kernel-doc to verify formatting of the comments in the kernel-doc guide.
Signed-off-by: NMike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Move the _if_ outside the verbatim string.

Make key ring name as a verbatim string.
Signed-off-by: NPhilipp Hahn <hahn@univention.de>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Commit d3bfe841 changed the name but did
not update the documentation.

Fixes: d3bfe841Signed-off-by: NPhilipp Hahn <hahn@univention.de>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

So once upon a time I set out to fix the problem reported by Tobin wherein
a literal block within a kerneldoc comment would be corrupted in
processing.  On the way, though, I got annoyed at the way I have to learn
how kernel-doc works from the beginning every time I tear into it.

As a result, seven of the following eight patches just get rid of some dead
code and reorganize the rest - mostly turning the 500-line process_file()
function into something a bit more rational.  Sphinx output is unchanged
after these are applied.  Then, at the end, there's a tweak to stop messing
with literal blocks.

If anybody was unaware that I've not done any serious Perl since the
1990's, they will certainly understand that fact now.

Add the SPDX header while I'm in the neighborhood.  The source itself just
says "GNU General Public License", but it also refers people to the COPYING
file for further information.  Since COPYING says 2.0-only, that is what I
have put into the header.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

This patch fixes a warning during "make xmldocs"

Documentation/driver-api/slimbus.rst:93:
WARNING: Title underline too short.
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Without this patch, the points 1-9 in the list are rendered as an HTML
blockquote containing a list, causing them to be indented further than
the rest of the list.

While at it, also fix the quotation marks around G and P.
Signed-off-by: NJonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

It helps to give some examples about how to use in-line
comments also when nested union/structs are present. So add it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

The parser at kernel-doc rejects names with dots in the middle.
Fix it, in order to support nested structs/unions.
Tested-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

We want to give some examples about how to do in-line comments
for nested structs. So, move it to be after nested structs/unions
chapter.

The section content was not changed on this patch.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Without ending with a ";", kernel-doc doesn't recognize it
as an struct, and it fails to parse the example.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

There's a missing */ at the end of Kernel docs example.
Even adding it, it will still produce 3 warnings:

	example:33: warning: Function parameter or member 'bar' not described in 'nested_foobar'
	example:33: warning: Function parameter or member 'bar.st1' not described in 'nested_foobar'
	example:33: warning: Function parameter or member 'bar.st2' not described in 'nested_foobar'

So, make the example more complete and add the missing end
of comment there.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

The mailing list archives[1,2] show no activity since September 2011.

[1]: https://lists.linuxfoundation.org/pipermail/bugme-new/
[2]: https://lists.linuxfoundation.org/pipermail/bugme-janitors/Signed-off-by: NJonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

When function description includes brackets after the function name as
suggested by Documentation/doc-guide/kernel-doc, the kernel-doc script
omits the function name from "Scanning doc for" report.
Extending match for identifier name with optional brackets fixes this
issue.
Signed-off-by: NMike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Delete reference to the kernel-mentors mailing list because the mailing list no longer exists
Signed-off-by: NMinghui Liu <minghui.liu.95@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

It can be useful to put code snippets into kerneldoc comments; that can be
done with the "::" operator at the end of a line like this::

   if (desperate)
       run_in_circles();

The ".. code-block::" directive can also be used to this end.  kernel-doc
currently fails to understand these literal blocks and applies its normal
markup to them, which is then treated as literal by sphinx.  The result is
unsightly markup instead of a useful code snippet.

Apply a hack to the output code to recognize literal blocks and avoid
performing any special markup on them.  It's ugly, but that means it fits
in well with the rest of the script.
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Move STATE_INLINE and STATE_DOCBLOCK code out of process_file(), which now
actually fits on a single screen.  Delete an unused variable and add a
couple of comments while I'm at it.
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Move the top-level prototype-processing code out of process_file().
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Also group the pseudo-global $leading_space variable with its peers.
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Move this code out of process_file() in the name of readability and
maintainability.
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Begin the process of splitting up the nearly 500-line process_file()
function by moving STATE_NORMAL processing to a separate function.
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

STATE_FIELD describes a parser state that can handle any part of a
kerneldoc comment body; rename it to STATE_BODY to reflect that.

The $in_purpose variable was a hidden substate of STATE_FIELD; get rid of
it and make a proper state (STATE_BODY_MAYBE) instead.  This will make the
subsequent process_file() splitup easier.
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

XML escaping is a worry that came with DocBook, which we no longer have any
dealings with.  So get rid of the useless xml_escape()/xml_unescape()
functions.  No change to the generated output.
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

I found the layout confusing with multiple introductions to what
kernel-doc is and how to use it.

I made the following changes:
 - Moved the 'Including kernel-doc comments' section to the end of
   the document -- we should explain what it *is* before we explain
   how to integrate it.
 - Moved the 'Recommendations' subsection to the top.  We want people
   to know what to document before telling them how to do it.
 - Rewrite the 'Writing kernel-doc comments' section, integrating
   the 'Recommendations' subsection and a paragraph from 'How to format
   kernel-doc comments'.
 - Remove the paragraph about the kernel-doc script; we're supposed to
   be teaching people how to use punctuation to write pretty documentation,
   not documenting the build tooling.
 - Split the 'Parameters and member arguments' section into 'Function
   parameters' and 'Members'.  Structure members are not commonly
   referred to as arguments.
 - Integrate the 'private:' and 'public:' tag descriptions into the
   'Members' section.
 - Move the 'In-line member documentation comments' subsection up to be
   with the 'Members' section.
Signed-off-by: NMatthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Line up the second line in the way that the example purports to be
showing.
Signed-off-by: NMatthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Instead of asking the user to copy and paste a small perl script from
the documentation, just distribute the perl script in the scripts
directory.
Signed-off-by: NMatthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

The author clearly meant to use the word 'which' here.  Also replace
some tabs with spaces which fixes the syntax highlighting in my editor.
Signed-off-by: NMatthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>