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-rw-r--r--include/asm-generic/bug.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 0cd9711895f..845cb67ad8e 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -38,4 +38,17 @@
#endif
#endif
+#define WARN_ON_ONCE(condition) \
+({ \
+ static int __warn_once = 1; \
+ int __ret = 0; \
+ \
+ if (unlikely((condition) && __warn_once)) { \
+ __warn_once = 0; \
+ WARN_ON(1); \
+ __ret = 1; \
+ } \
+ __ret; \
+})
+
#endif