__builtin_bswap16  102 include/uapi/linux/swab.h #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
__builtin_bswap16   24 tools/testing/selftests/bpf/bpf_endian.h # define __bpf_ntohs(x)			__builtin_bswap16(x)
__builtin_bswap16   25 tools/testing/selftests/bpf/bpf_endian.h # define __bpf_htons(x)			__builtin_bswap16(x)