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checkpatch: document new check PLACEHOLDER_USE

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Adds documentation for the new check PLACEHOLDER_USE in checkpatch.

Link: https://lkml.kernel.org/r/20250917173725.22547-3-work@onurozkan.dev
Signed-off-by: Onur Özkan <work@onurozkan.dev>
Acked-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Onur Özkan 2025-09-17 20:37:25 +03:00 committed by Andrew Morton
parent fc387a0704
commit 55b453ed53
1 changed files with 10 additions and 0 deletions
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Documentation/dev-tools/checkpatch.rst
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@ -1245,6 +1245,16 @@ Others
The patch file does not appear to be in unified-diff format. Please
regenerate the patch file before sending it to the maintainer.
**PLACEHOLDER_USE**
Detects unhandled placeholder text left in cover letters or commit headers/logs.
Common placeholders include lines like::
*** SUBJECT HERE ***
*** BLURB HERE ***
These typically come from autogenerated templates. Replace them with a proper
subject and description before sending.
**PRINTF_0XDECIMAL**
Prefixing 0x with decimal output is defective and should be corrected.