linux-kernel - [PATCH v7 0/2] codingstyle: avoid unused parameters for a function-like macro

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Date: Tue,  7 May 2024 15:27:55 +1200
From: Barry Song <21cnbao@...il.com>
To: akpm@...ux-foundation.org,
	linux-doc@...r.kernel.org
Cc: apw@...onical.com,
	broonie@...nel.org,
	chenhuacai@...ngson.cn,
	chris@...kel.net,
	corbet@....net,
	dwaipayanray1@...il.com,
	herbert@...dor.apana.org.au,
	joe@...ches.com,
	linux-kernel@...r.kernel.org,
	linux@...ck-us.net,
	lukas.bulwahn@...il.com,
	mac.xxn@...look.com,
	sfr@...b.auug.org.au,
	v-songbaohua@...o.com,
	workflows@...r.kernel.org
Subject: [PATCH v7 0/2] codingstyle: avoid unused parameters for a function-like macro

From: Barry Song <v-songbaohua@...o.com>

-v7:
 * collect ack of Joe for checkpatch.pl, thanks!
 * fixed an indentation per Joe

-v6:
 * collect ack of Joe, thanks!
 * refine docs according to Jonathan, thanks!
 * add checkpatch doc according to Joe, thanks!
 v6 link:
 https://lore.kernel.org/lkml/20240506014606.8638-1-21cnbao@gmail.com/

-v5:
 * Simplify the code for Patch 2 according to Joe's suggestions.
 * add s-o-b of Barry according to Jeff Johnson
 v5 link:
 https://lore.kernel.org/all/20240401012120.6052-1-21cnbao@gmail.com/

-v4:
 * fix Xining's email address, s/ma.xxn@...look.com/mac.xxn@...look.com/g
 * fix some false positives of checkpatch.pl
 * downgrade from ERROR to WARN in checkpatch.pl

 Thanks for Joe's comments!

 v4 link: https://lore.kernel.org/all/20240328022136.5789-1-21cnbao@gmail.com/

-v3:
 https://lore.kernel.org/all/20240322084937.66018-1-21cnbao@gmail.com/

A function-like macro could result in build warnings such as
"unused variable." This patchset updates the guidance to
recommend always using a static inline function instead
and also provides checkpatch support for this new rule.

Barry Song (1):
  Documentation: coding-style: ask function-like macros to evaluate
    parameters

Xining Xu (1):
  scripts: checkpatch: check unused parameters for function-like macro

 Documentation/dev-tools/checkpatch.rst | 14 ++++++++++++++
 Documentation/process/coding-style.rst | 23 +++++++++++++++++++++++
 scripts/checkpatch.pl                  |  6 ++++++
 3 files changed, 43 insertions(+)

-- 
2.34.1