linux-kernel - Re: [PATCH 1/1] checkpatch: allow multi-statement declarative macros.

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Date: Thu, 16 May 2024 09:20:12 -0600
From: jim.cromie@...il.com
To: Joe Perches <joe@...ches.com>
Cc: linux-kernel@...r.kernel.org, akpm@...uxfoundation.org, 
	Andy Whitcroft <apw@...onical.com>, Dwaipayan Ray <dwaipayanray1@...il.com>, 
	Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: Re: [PATCH 1/1] checkpatch: allow multi-statement declarative macros.

On Thu, May 16, 2024 at 8:43 AM Joe Perches <joe@...ches.com> wrote:
>
> On Thu, 2024-05-16 at 08:14 -0600, Jim Cromie wrote:
> > Declarative macros, which declare/define storage (at either file or
> > function scope), cannot be wrapped in do-while statements.  So
> > checkpatch advice is incorrect here.
> >
> > The code has an $exceptions regex which allows multiple statements
> > based on the macro name, etc; /DECLARE_PER_CPU|DEFINE_PER_CPU/ are
> > currently accepted, widen those to accept /DECLARE|DEFINE/.
>
> It seems this exempts too large a number of these macros
>
> $ git grep -P '^\s*\#\s*define\s+\w*(?:DECLARE|DEFINE)\w*'|wc -l
> 5075
>

wow, thats more than Id have thought.

> How about somehow limiting these exemptions more strictly?

agreed.  I'll just add my 1 exceptional macro name.
resending shortly.