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-rw-r--r--include/asm-generic/bug.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index e5a3f5880001..91784841e407 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -162,9 +162,46 @@ 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.