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-rw-r--r--include/asm-powerpc/bug.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/include/asm-powerpc/bug.h b/include/asm-powerpc/bug.h
index f44b529..978b2c7 100644
--- a/include/asm-powerpc/bug.h
+++ b/include/asm-powerpc/bug.h
@@ -70,9 +70,10 @@ struct bug_entry *find_bug(unsigned long bugaddr);
"i" (__FILE__), "i" (__FUNCTION__)); \
} while (0)
-#define WARN_ON(x) do { \
- if (__builtin_constant_p(x)) { \
- if (x) \
+#define WARN_ON(x) ({ \
+ typeof(x) __ret_warn_on = (x); \
+ if (__builtin_constant_p(__ret_warn_on)) { \
+ if (__ret_warn_on) \
__WARN(); \
} else { \
__asm__ __volatile__( \
@@ -80,11 +81,12 @@ struct bug_entry *find_bug(unsigned long bugaddr);
".section __bug_table,\"a\"\n" \
"\t"PPC_LONG" 1b,%1,%2,%3\n" \
".previous" \
- : : "r" ((long)(x)), \
+ : : "r" (__ret_warn_on), \
"i" (__LINE__ + BUG_WARNING_TRAP), \
"i" (__FILE__), "i" (__FUNCTION__)); \
} \
-} while (0)
+ unlikely(__ret_warn_on); \
+})
#define HAVE_ARCH_BUG
#define HAVE_ARCH_BUG_ON
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