linux-kernel - Re: [PATCH] kernel/SRCU: Fix ctags

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Message-ID: <CAKaJLVs1HxV7ZB_XtrLHq8VXy+HvvGWRE+6KfkafPViQKm_3WQ@mail.gmail.com>
Date:   Tue, 11 Sep 2018 19:57:48 +0300
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kate Stewart <kstewart@...uxfoundation.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        "David S . Miller" <davem@...emloft.net>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH] kernel/SRCU: Fix ctags

Hi guys,

It's been a while since I sent this one. Can we please merge it if
there is no objections?

Thanks.

On Tue, Aug 28, 2018 at 6:44 PM, Sam Protsenko
<semen.protsenko@...aro.org> wrote:
> ctags indexing ("make tags" command) throws this warning:
>
>     ctags: Warning: include/linux/notifier.h:125:
>     null expansion of name pattern "\1"
>
> This is the result of DEFINE_PER_CPU() macro exapansion. Fix that by
> getting rid of line break.
>
> Similar fix was already done in commit 25528213fe9f ("tags: Fix
> DEFINE_PER_CPU expansions"), but this one probably wasn't noticed.
>
> Signed-off-by: Sam Protsenko <semen.protsenko@...aro.org>
> ---
>  include/linux/notifier.h | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/include/linux/notifier.h b/include/linux/notifier.h
> index f35c7bf76143..2c6ff4cde938 100644
> --- a/include/linux/notifier.h
> +++ b/include/linux/notifier.h
> @@ -122,8 +122,7 @@ extern void srcu_init_notifier_head(struct srcu_notifier_head *nh);
>
>  #ifdef CONFIG_TREE_SRCU
>  #define _SRCU_NOTIFIER_HEAD(name, mod)                         \
> -       static DEFINE_PER_CPU(struct srcu_data,                 \
> -                       name##_head_srcu_data);                 \
> +       static DEFINE_PER_CPU(struct srcu_data, name##_head_srcu_data); \
>         mod struct srcu_notifier_head name =                    \
>                         SRCU_NOTIFIER_INIT(name, name##_head_srcu_data)
>
> --
> 2.18.0
>