linux-kernel - [PATCH/trivial] might_sleep: Make file parameter const char *

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Date:	Wed, 23 Dec 2009 11:08:18 +0100
From:	Simon Kagstrom <simon.kagstrom@...insight.net>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, peterz@...radead.org
Subject: [PATCH/trivial] might_sleep: Make file parameter const char *

Fixes a warning when building with g++:

 warning: deprecated conversion from string constant to 'char*'

And the file parameter use is constant, so mark it as such.

Signed-off-by: Simon Kagstrom <simon.kagstrom@...insight.net>
---
 include/linux/kernel.h |    5 +++--
 kernel/sched.c         |    2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 3fc9f5a..785d7d1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -124,7 +124,7 @@ extern int _cond_resched(void);
 #endif
 
 #ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
-  void __might_sleep(char *file, int line, int preempt_offset);
+  void __might_sleep(const char *file, int line, int preempt_offset);
 /**
  * might_sleep - annotation for functions that can sleep
  *
@@ -138,7 +138,8 @@ extern int _cond_resched(void);
 # define might_sleep() \
 	do { __might_sleep(__FILE__, __LINE__, 0); might_resched(); } while (0)
 #else
-  static inline void __might_sleep(char *file, int line, int preempt_offset) { }
+  static inline void __might_sleep(const char *file, int line,
+				   int preempt_offset) { }
 # define might_sleep() do { might_resched(); } while (0)
 #endif
 
diff --git a/kernel/sched.c b/kernel/sched.c
index 87f1f47..506e0ac 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -9695,7 +9695,7 @@ static inline int preempt_count_equals(int preempt_offset)
 	return (nested == PREEMPT_INATOMIC_BASE + preempt_offset);
 }
 
-void __might_sleep(char *file, int line, int preempt_offset)
+void __might_sleep(const char *file, int line, int preempt_offset)
 {
 #ifdef in_atomic
 	static unsigned long prev_jiffy;	/* ratelimiting */
-- 
1.6.0.4

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