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: <20260116082812.GH830755@noisy.programming.kicks-ass.net>
Date: Fri, 16 Jan 2026 09:28:12 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Linus Torvalds <torvalds@...ux-foundation.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, Jan 15, 2026 at 03:03:52PM -0800, Linus Torvalds wrote:
> 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...

Absolutely. I'll try and make it happen if tglx doesn't.