1 files changed, 5 insertions, 4 deletions

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 37b82cb96c89..4b6755984d24 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -58,12 +58,13 @@ struct bug_entry {
  */
 #ifndef __WARN
 #ifndef __ASSEMBLY__
-extern void warn_slowpath(const char *file, const int line,
+extern void warn_slowpath_fmt(const char *file, const int line,
                 const char *fmt, ...) __attribute__((format(printf, 3, 4)));
+extern void warn_slowpath_null(const char *file, const int line);
 #define WANT_WARN_ON_SLOWPATH
 #endif
-#define __WARN()                warn_slowpath(__FILE__, __LINE__, NULL)
-#define __WARN_printf(arg...)   warn_slowpath(__FILE__, __LINE__, arg)
+#define __WARN()                warn_slowpath_null(__FILE__, __LINE__)
+#define __WARN_printf(arg...)   warn_slowpath_fmt(__FILE__, __LINE__, arg)
 #else
 #define __WARN_printf(arg...)   do { printk(arg); __WARN(); } while (0)
 #endif
@@ -88,7 +89,7 @@ extern void warn_slowpath(const char *file, const int line,
 
 #else /* !CONFIG_BUG */
 #ifndef HAVE_ARCH_BUG
-#define BUG()
+#define BUG() do {} while(0)
 #endif
 
 #ifndef HAVE_ARCH_BUG_ON