bug.h: Move ratelimit warn interfaces to ratelimit.h

As reported by Ingo Molnar, we still have configuration combinations where use of the WARN_RATELIMIT interfaces break the build because dependencies don't get met. Instead of going down the long road of trying to make it so that ratelimit.h can get included by kernel.h or asm-generic/bug.h, just move the interface into ratelimit.h and make users have to include that. Reported-by: Ingo Molnar <[email protected]> Signed-off-by: David S. Miller <[email protected]> Acked-by: Randy Dunlap <[email protected]>
chewitt · May 26, 2011 · 86e4ca6 · 86e4ca6
1 parent 90e6247
commit 86e4ca6
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Showing 3 changed files with 41 additions and 40 deletions.
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
@@ -162,46 +162,6 @@ extern void warn_slowpath_null(const char *file, const int line);
 	unlikely(__ret_warn_once);				\
 })
 
-#ifdef CONFIG_PRINTK
-
-#define WARN_ON_RATELIMIT(condition, state)			\
-		WARN_ON((condition) && __ratelimit(state))
-
-#define __WARN_RATELIMIT(condition, state, format...)		\
-({								\
-	int rtn = 0;						\
-	if (unlikely(__ratelimit(state)))			\
-		rtn = WARN(condition, format);			\
-	rtn;							\
-})
-
-#define WARN_RATELIMIT(condition, format...)			\
-({								\
-	static DEFINE_RATELIMIT_STATE(_rs,			\
-				      DEFAULT_RATELIMIT_INTERVAL,	\
-				      DEFAULT_RATELIMIT_BURST);	\
-	__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.

diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h
@@ -41,4 +41,44 @@ extern struct ratelimit_state printk_ratelimit_state;
 extern int ___ratelimit(struct ratelimit_state *rs, const char *func);
 #define __ratelimit(state) ___ratelimit(state, __func__)
 
+#ifdef CONFIG_PRINTK
+
+#define WARN_ON_RATELIMIT(condition, state)			\
+		WARN_ON((condition) && __ratelimit(state))
+
+#define __WARN_RATELIMIT(condition, state, format...)		\
+({								\
+	int rtn = 0;						\
+	if (unlikely(__ratelimit(state)))			\
+		rtn = WARN(condition, format);			\
+	rtn;							\
+})
+
+#define WARN_RATELIMIT(condition, format...)			\
+({								\
+	static DEFINE_RATELIMIT_STATE(_rs,			\
+				      DEFAULT_RATELIMIT_INTERVAL,	\
+				      DEFAULT_RATELIMIT_BURST);	\
+	__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
+
 #endif /* _LINUX_RATELIMIT_H */
diff --git a/net/core/filter.c b/net/core/filter.c
@@ -38,6 +38,7 @@
 #include <asm/unaligned.h>
 #include <linux/filter.h>
 #include <linux/reciprocal_div.h>
+#include <linux/ratelimit.h>
 
 /* No hurry in this branch */
 static void *__load_pointer(const struct sk_buff *skb, int k, unsigned int size)