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docs: process: discourage pointless boilerplate kdoc

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It appears that folks "less versed in kernel coding" think that its
good style to document every function, even if they have no useful
information to pass to the future readers of the code. This used
to be just a waste of space, but with increased kdoc format linting
it's also a burden when refactoring the code.

Signed-off-by: Jakub Kicinski <[email protected]>
Reviewed-by: Joe Damato <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Jakub Kicinski authored and Jonathan Corbet committed 2025-06-21 14:14:33 -06:00
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Documentation/process/coding-style.rst
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@@ -614,7 +614,10 @@ it.
When commenting the kernel API functions, please use the kernel-doc format.
See the files at :ref:`Documentation/doc-guide/ <doc_guide>` and
``scripts/kernel-doc`` for details.
``scripts/kernel-doc`` for details. Note that the danger of over-commenting
applies to kernel-doc comments all the same. Do not add boilerplate
kernel-doc which simply reiterates what's obvious from the signature
of the function.
The preferred style for long (multi-line) comments is: