linux-kernel - Re: [tip:timers/vdso 12/14] net/rds/ib_cm.c:96:35: sparse: sparse: incorrect type in argument 1 (different modifiers)

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Message-ID: <CAHk-=wgXxY4NTZW8rcrXqx3h=j+t2445VWccbpywXYdoL_V0qA@mail.gmail.com>
Date: Thu, 15 Jan 2026 15:03:52 -0800
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...nel.org>, kernel test robot <lkp@...el.com>, Ian Rogers <irogers@...gle.com>, 
	oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, x86@...nel.org, 
	sparse@...isli.org, linux-sparse@...r.kernel.org, 
	Marco Elver <elver@...gle.com>
Subject: Re: [tip:timers/vdso 12/14] net/rds/ib_cm.c:96:35: sparse: sparse:
 incorrect type in argument 1 (different modifiers)

On Thu, 15 Jan 2026 at 13:31, Peter Zijlstra <peterz@...radead.org> wrote:
>
> GCC-14 :-/ The GCC-8.4 one was the function return value trick.

Right you are. And yeah, us moving on to gcc-14 as a minimum version
is not imminent.

Still, while we can't force it, lots of distros are on gcc-15, so
while we'd have the _Generic() macro as a fallback for older versions,
at least most developers would hopefully get the nice clean modern
__typeof_unqual__ thing...

           Linus