__constant_le32_to_cpu   22 include/uapi/linux/byteorder/big_endian.h #define __constant_le32_to_cpu(x) ___constant_swab32((__force __u32)(__le32)(x))
__constant_le32_to_cpu   22 include/uapi/linux/byteorder/little_endian.h #define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x))