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Diffstat (limited to 'arch/arm/include/asm/swab.h')
-rw-r--r--arch/arm/include/asm/swab.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/include/asm/swab.h b/arch/arm/include/asm/swab.h
index ca2bf2f6d6e..9997ad20eff 100644
--- a/arch/arm/include/asm/swab.h
+++ b/arch/arm/include/asm/swab.h
@@ -22,6 +22,24 @@
# define __SWAB_64_THRU_32__
#endif
+#if defined(__KERNEL__) && __LINUX_ARM_ARCH__ >= 6
+
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+ __asm__ ("rev16 %0, %1" : "=r" (x) : "r" (x));
+ return x;
+}
+#define __arch_swab16 __arch_swab16
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+ __asm__ ("rev %0, %1" : "=r" (x) : "r" (x));
+ return x;
+}
+#define __arch_swab32 __arch_swab32
+
+#else
+
static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{
__u32 t;
@@ -48,3 +66,4 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
#endif
+#endif