linux-kernel - Re: [PATCH] locking/seqlock: Tweak DEFINE

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Date:   Tue, 6 Oct 2020 13:41:47 +0100
From:   Will Deacon <will@...nel.org>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] locking/seqlock: Tweak DEFINE_SEQLOCK() kernel doc

On Thu, Sep 24, 2020 at 05:48:51PM +0200, Sebastian Andrzej Siewior wrote:
> ctags creates a warning:
> |ctags: Warning: include/linux/seqlock.h:738: null expansion of name pattern "\2"
> 
> The DEFINE_SEQLOCK() macro is passed to ctags and being told to expect
> an argument.
> 
> Add a dummy argument to keep ctags quiet.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> ---
>  include/linux/seqlock.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
> index 962d9768945f0..4a69e74dc7ce9 100644
> --- a/include/linux/seqlock.h
> +++ b/include/linux/seqlock.h
> @@ -735,7 +735,7 @@ typedef struct {
>  	} while (0)
>  
>  /**
> - * DEFINE_SEQLOCK() - Define a statically allocated seqlock_t
> + * DEFINE_SEQLOCK(sl) - Define a statically allocated seqlock_t
>   * @sl: Name of the seqlock_t instance
>   */
>  #define DEFINE_SEQLOCK(sl) \

Acked-by: Will Deacon <will@...nel.org>

Will