linux-kernel - Re: linux-next: build warning after merge of the tip tree

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Message-ID: <20260107215409.GB694817@noisy.programming.kicks-ass.net>
Date: Wed, 7 Jan 2026 22:54:09 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Marco Elver <elver@...gle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the tip tree

On Wed, Jan 07, 2026 at 04:15:48PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the tip tree, today's linux-next build (htmldocs) produced
> this warning:
> 
> Documentation/core-api/kref:328: include/linux/kref.h:72: WARNING: Invalid C declaration: Expected end of definition. [error at 96]
>   int kref_put_mutex (struct kref *kref, void (*release)(struct kref *kref), str
> uct mutex *mutex) __cond_acquires(true# mutex)
>   ------------------------------------------------------------------------------------------------^
> Documentation/core-api/kref:328: include/linux/kref.h:94: WARNING: Invalid C declaration: Expected end of definition. [error at 92]
>   int kref_put_lock (struct kref *kref, void (*release)(struct kref *kref), spinlock_t *lock) __cond_acquires(true# lock)
>   --------------------------------------------------------------------------------------------^
> 
> Introduced by commit
> 
>   5e256db9325e ("kref: Add context-analysis annotations")

I really have no clue what that thing is on about. The code is fine and
works as intended.

My go-to fix for anything kdoc is to change '/**' into '/*' until it
goes away.