gcc 5.0 will likely not have the constraint problem Signed-off-by: Andi Kleen <ak@suse.de>
@@ -7,7 +7,7 @@
#include <asm/alternative.h>
-#if __GNUC__ < 4 || __GNUC_MINOR__ < 1
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
/* Technically wrong, but this avoids compilation errors on some gcc
versions. */
#define ADDR "=m" (*(volatile long *) addr)