x86: simplify sync_test_bit(), improve

Using a naked parameterless macro could lead to other tokens being
unexpectedly replaced.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/asm-x86/sync_bitops.h

@@ -123,7 +123,7 @@ static inline int sync_test_and_change_bit(int nr, volatile unsigned long *addr)
 	return oldbit;
 }
 
-#define sync_test_bit test_bit
+#define sync_test_bit(nr, addr) test_bit(nr, addr)
 
 #undef ADDR