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-rw-r--r--arch/x86/include/asm/bug.h9
-rw-r--r--include/asm-generic/bug.h2
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index b5474603460b..87199e6633f9 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -178,6 +178,15 @@ do { \
#define __WARN_printf(taint, fmt, arg...) \
__WARN_print_arg(BUGFLAG_TAINT(taint), fmt, ## arg)
+#define WARN_ONCE(cond, format, arg...) ({ \
+ int __ret_warn_on = !!(cond); \
+ if (unlikely(__ret_warn_on)) { \
+ __WARN_print_arg(BUGFLAG_ONCE|BUGFLAG_TAINT(TAINT_WARN),\
+ format, ## arg); \
+ } \
+ __ret_warn_on; \
+})
+
#endif /* HAVE_ARCH_BUG_FORMAT_ARGS */
#include <asm-generic/bug.h>
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index e512071216be..09e8eccee8ed 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -180,8 +180,10 @@ extern __printf(1, 2) void __warn_printk(const char *fmt, ...);
DO_ONCE_LITE_IF(condition, WARN_ON, 1)
#endif
+#ifndef WARN_ONCE
#define WARN_ONCE(condition, format...) \
DO_ONCE_LITE_IF(condition, WARN, 1, format)
+#endif
#define WARN_TAINT_ONCE(condition, taint, format...) \
DO_ONCE_LITE_IF(condition, WARN_TAINT, 1, taint, format)