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Diffstat (limited to 'include/uapi/linux/swab.h')
-rw-r--r--include/uapi/linux/swab.h12
1 files changed, 9 insertions, 3 deletions
diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
index e811474724c..0e011eb91b5 100644
--- a/include/uapi/linux/swab.h
+++ b/include/uapi/linux/swab.h
@@ -45,7 +45,9 @@
static inline __attribute_const__ __u16 __fswab16(__u16 val)
{
-#ifdef __arch_swab16
+#ifdef __HAVE_BUILTIN_BSWAP16__
+ return __builtin_bswap16(val);
+#elif defined (__arch_swab16)
return __arch_swab16(val);
#else
return ___constant_swab16(val);
@@ -54,7 +56,9 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
static inline __attribute_const__ __u32 __fswab32(__u32 val)
{
-#ifdef __arch_swab32
+#ifdef __HAVE_BUILTIN_BSWAP32__
+ return __builtin_bswap32(val);
+#elif defined(__arch_swab32)
return __arch_swab32(val);
#else
return ___constant_swab32(val);
@@ -63,7 +67,9 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
static inline __attribute_const__ __u64 __fswab64(__u64 val)
{
-#ifdef __arch_swab64
+#ifdef __HAVE_BUILTIN_BSWAP64__
+ return __builtin_bswap64(val);
+#elif defined (__arch_swab64)
return __arch_swab64(val);
#elif defined(__SWAB_64_THRU_32__)
__u32 h = val >> 32;