linux-kernel - [PATCH 1/2] irq_work.h: fix warning when CONFIG_IRQ

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Message-Id: <1363271189-6631-2-git-send-email-fweisbec@gmail.com>
Date:	Thu, 14 Mar 2013 15:26:28 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	James Hogan <james.hogan@...tec.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [PATCH 1/2] irq_work.h: fix warning when CONFIG_IRQ_WORK=n

From: James Hogan <james.hogan@...tec.com>

A randconfig caught repeated compiler warnings when CONFIG_IRQ_WORK=n
due to the definition of a non-inline static function in
<linux/irq_work.h>:

include/linux/irq_work.h +40 : warning: 'irq_work_needs_cpu' defined but not used

Make it inline to supress the warning. This is caused by the following
commit:

Commit 00b42959106a9ca1c2899e591ae4e9a83ad6af05 ("irq_work: Don't stop
the tick with pending works") merged in v3.9-rc1.

Signed-off-by: James Hogan <james.hogan@...tec.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Paul Gortmaker <paul.gortmaker@...driver.com>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
 include/linux/irq_work.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index f5dbce5..6601702 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -37,7 +37,7 @@ void irq_work_sync(struct irq_work *work);
 #ifdef CONFIG_IRQ_WORK
 bool irq_work_needs_cpu(void);
 #else
-static bool irq_work_needs_cpu(void) { return false; }
+static inline bool irq_work_needs_cpu(void) { return false; }
 #endif
 
 #endif /* _LINUX_IRQ_WORK_H */
-- 
1.7.5.4

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