linux-kernel - [PATCH 4.19 26/54] include/linux/notifier.h: SRCU: fix ctags

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Message-Id: <20200411115511.146571362@linuxfoundation.org>
Date:   Sat, 11 Apr 2020 14:09:08 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sam Protsenko <semen.protsenko@...aro.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 4.19 26/54] include/linux/notifier.h: SRCU: fix ctags

From: Sam Protsenko <semen.protsenko@...aro.org>

commit 94e297c50b529f5d01cfd1dbc808d61e95180ab7 upstream.

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 expansion.  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.

Link: http://lkml.kernel.org/r/20181030202808.28027-1-semen.protsenko@linaro.org
Fixes: 9c80172b902d ("kernel/SRCU: provide a static initializer")
Signed-off-by: Sam Protsenko <semen.protsenko@...aro.org>
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 include/linux/notifier.h |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -122,8 +122,7 @@ extern void srcu_init_notifier_head(stru
 
 #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)