/*
 * provide defaults when no architecture-specific optimization is detected
 */
#ifndef __arch__swab16
#  define __arch__swab16(x) ({ __u16 __tmp = (x) ; ___swab16(__tmp); })
#endif
#ifndef __arch__swab32
#  define __arch__swab32(x) ({ __u32 __tmp = (x) ; ___swab32(__tmp); })
#endif
#ifndef __arch__swab64
#  define __arch__swab64(x) ({ __u64 __tmp = (x) ; ___swab64(__tmp); })
#endif