X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-generic%2Fbug.h;h=8ceab7bcd8b4f229f45536f8208e5394c99e9695;hb=e9f7bee1df223dcf83743b46cb06c08d95497ec0;hp=0cd9711895faaf6259baeaf3a66cf6484d41804a;hpb=d6754b401a15eaa16492ea5dbaa4826361d3f411;p=powerpc.git

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 0cd9711895..8ceab7bcd8 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -38,4 +38,23 @@
 #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;						\
+})
+
+#ifdef CONFIG_SMP
+# define WARN_ON_SMP(x)			WARN_ON(x)
+#else
+# define WARN_ON_SMP(x)			do { } while (0)
+#endif
+
 #endif