linux-kernel - [007/107] bug.h: Fix build with CONFIG

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Date:	Thu, 07 Jul 2011 17:15:39 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	"David S. Miller" <davem@...emloft.net>,
	Randy Dunlap <randy.dunlap@...cle.com>
Subject: [007/107] bug.h: Fix build with CONFIG_PRINTK disabled.

2.6.39-stable review patch.  If anyone has any objections, please let us know.

------------------


From: "David S. Miller" <davem@...emloft.net>

[ Upstream commit 6b3678354647a653e669746c05765f05d2b90239 ]

Based upon an email by Joe Perches.

Reported-by: Randy Dunlap <randy.dunlap@...cle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Acked-by: Randy Dunlap <randy.dunlap@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 include/asm-generic/bug.h |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -162,6 +162,8 @@ extern void warn_slowpath_null(const cha
 	unlikely(__ret_warn_once);				\
 })
 
+#ifdef CONFIG_PRINTK
+
 #define WARN_ON_RATELIMIT(condition, state)			\
 		WARN_ON((condition) && __ratelimit(state))
 
@@ -181,6 +183,25 @@ extern void warn_slowpath_null(const cha
 	__WARN_RATELIMIT(condition, &_rs, format);		\
 })
 
+#else
+
+#define WARN_ON_RATELIMIT(condition, state)			\
+	WARN_ON(condition)
+
+#define __WARN_RATELIMIT(condition, state, format...)		\
+({								\
+	int rtn = WARN(condition, format);			\
+	rtn;							\
+})
+
+#define WARN_RATELIMIT(condition, format...)			\
+({								\
+	int rtn = WARN(condition, format);			\
+	rtn;							\
+})
+
+#endif
+
 /*
  * WARN_ON_SMP() is for cases that the warning is either
  * meaningless for !SMP or may even cause failures.


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