linux-kernel - [PATCH 02/46] kernel: Add prototype definition to include/linux/kernel.h

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Date:	Thu, 27 Feb 2014 16:38:50 +0530
From:	Rashika Kheria <rashika.kheria@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Chris Metcalf <cmetcalf@...era.com>, Tony Lu <zlu@...era.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Rashika Kheria <rashika.kheria@...il.com>,
	"Steven Rostedt (Red Hat)" <rostedt@...dmis.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Ingo Molnar <mingo@...nel.org>,
	Alex Elder <alex.elder@...aro.org>,
	Dhaval Giani <dhaval.giani@...il.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Daniel Borkmann <dborkman@...hat.com>,
	Andre Naujoks <nautsch2@...il.com>,
	Jason Baron <jbaron@...mai.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Randy Dunlap <rdunlap@...radead.org>,
	Robin Holt <holt@....com>, Tony Luck <tony.luck@...el.com>,
	Alex Thorlton <athorlton@....com>,
	Kees Cook <keescook@...omium.org>, Tejun Heo <tj@...nel.org>,
	Chen Gang <gang.chen@...anux.com>, josh@...htriplett.org
Subject: [PATCH 02/46] kernel: Add prototype definition to
 include/linux/kernel.h

Add prototype declaration to header file include/linux/kernel.h because
it is used by more than one file.

This also eliminates the following warning in kernel/panic.c:
kernel/panic.c:55:13: warning: no previous prototype for ‘panic_smp_self_stop’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@...il.com>
Reviewed-by: Josh Triplett <josh@...htriplett.org>
---
 arch/tile/kernel/smp.c |    1 +
 include/linux/kernel.h |    2 ++
 kernel/panic.c         |    1 +
 3 files changed, 4 insertions(+)

diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c
index 01e8ab2..8b645fd 100644
--- a/arch/tile/kernel/smp.c
+++ b/arch/tile/kernel/smp.c
@@ -19,6 +19,7 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/module.h>
+#include <linux/kernel.h>
 #include <asm/cacheflush.h>
 #include <asm/homecache.h>
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 196d1ea..c7cee7d 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -154,6 +154,8 @@ struct completion;
 struct pt_regs;
 struct user;
 
+void __weak panic_smp_self_stop(void);
+
 #ifdef CONFIG_PREEMPT_VOLUNTARY
 extern int _cond_resched(void);
 # define might_resched() _cond_resched()
diff --git a/kernel/panic.c b/kernel/panic.c
index 6d63003..14e08c2 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -23,6 +23,7 @@
 #include <linux/sysrq.h>
 #include <linux/init.h>
 #include <linux/nmi.h>
+#include <linux/kernel.h>
 
 #define PANIC_TIMER_STEP 100
 #define PANIC_BLINK_SPD 18
-- 
1.7.9.5

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