arm: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/arm/include/asm/byteorder.h b/arch/arm/include/asm/byteorder.h
index 4fbfb22..c02b6fc 100644
--- a/arch/arm/include/asm/byteorder.h
+++ b/arch/arm/include/asm/byteorder.h
@@ -15,38 +15,7 @@
#ifndef __ASM_ARM_BYTEORDER_H
#define __ASM_ARM_BYTEORDER_H
-#include <linux/compiler.h>
-#include <asm/types.h>
-
-static inline __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
- __u32 t;
-
-#ifndef __thumb__
- if (!__builtin_constant_p(x)) {
- /*
- * The compiler needs a bit of a hint here to always do the
- * right thing and not screw it up to different degrees
- * depending on the gcc version.
- */
- asm ("eor\t%0, %1, %1, ror #16" : "=r" (t) : "r" (x));
- } else
-#endif
- t = x ^ ((x << 16) | (x >> 16)); /* eor r1,r0,r0,ror #16 */
-
- x = (x << 24) | (x >> 8); /* mov r0,r0,ror #8 */
- t &= ~0x00FF0000; /* bic r1,r1,#0x00FF0000 */
- x ^= (t >> 8); /* eor r0,r0,r1,lsr #8 */
-
- return x;
-}
-
-#define __arch__swab32(x) ___arch__swab32(x)
-
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-# define __BYTEORDER_HAS_U64__
-# define __SWAB_64_THRU_32__
-#endif
+#include <asm/swab.h>
#ifdef __ARMEB__
#include <linux/byteorder/big_endian.h>