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Date:	Thu, 19 Jun 2014 15:28:19 +0200
From:	Bart Van Assche <>
To:	Arnd Bergmann <>
CC:	Josh Triplett <>,
	Andrew Morton <>,
	linux-kernel <>
Subject: [PATCH] bug: Fix CONFIG_BUG=n BUG_ON()

Patch "bug: Make BUG() always stop the machine" changed the
behavior of BUG() with CONFIG_BUG=n from a no-op into an infinite
loop. Modify the definition of BUG_ON() accordingly such that the
behavior of BUG_ON(1) is identical to that of BUG().

Signed-off-by: Bart Van Assche <>
Cc: Arnd Bergmann <>
Cc: Josh Triplett <>
Cc: Andrew Morton <>
 include/asm-generic/bug.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 630dd23..f3241cd 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -142,7 +142,7 @@ extern void warn_slowpath_null(const char *file, const int line);
-#define BUG_ON(condition) do { if (condition) ; } while (0)
+#define BUG_ON(condition) do { } while (unlikely(condition))

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