Commit 74bb6a09 authored Jun 25, 2006 by Ingo Molnar Committed by Linus Torvalds Jun 25, 2006

[PATCH] introduce WARN_ON_ONCE(cond)



Add WARN_ON_ONCE(cond) to print once-per-bootup messages.

[rostedt@goodmis.org: improve code generation]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 69755652

include/asm-generic/bug.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -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