arm: include: swab: use rigth assembly for armv8

Signed-off-by: Raphael Poggi <[email protected]> Signed-off-by: Sascha Hauer <[email protected]>
ndreys · Jul 6, 2016 · 10bf671 · 10bf671
1 parent ac04e93
commit 10bf671
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/arch/arm/include/asm/swab.h b/arch/arm/include/asm/swab.h
@@ -33,7 +33,11 @@ static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
 
 static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
 {
+#if __LINUX_ARM_ARCH__ == 8
+	__asm__ ("rev %w0, %w1" : "=r" (x) : "r" (x));
+#else
 	__asm__ ("rev %0, %1" : "=r" (x) : "r" (x));
+#endif
 	return x;
 }
 #define __arch_swab32 __arch_swab32