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docs: Note that :c:func: should no longer be used

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Now that we can mark up function() automatically, there is no reason to use
:c:func: and every reason to avoid it.  Adjust the documentation to reflect
that fact.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2019-06-26 11:20:21 -06:00
parent 344fdb28a0
commit d9d7c0c497
1 changed files with 7 additions and 4 deletions
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Documentation/doc-guide/sphinx.rst
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@ -241,11 +241,14 @@ The C domain of the kernel-doc has some additional features. E.g. you can
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:
changed to ``VIDIOC_LOG_STATUS``.
.. code-block:: rst
:c:func:`VIDIOC_LOG_STATUS`
Please note that there is no need to use ``c:func:`` to generate cross
references to function documentation. Due to some Sphinx extension magic,
the documentation build system will automatically turn a reference to
``function()`` into a cross reference if an index entry for the given
function name exists. If you see ``c:func:`` use in a kernel document,
please feel free to remove it.
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