u4_addr32 679 tools/testing/selftests/bpf/test_sock_addr.c uint32_t u4_addr32; u4_addr32 741 tools/testing/selftests/bpf/test_sock_addr.c BPF_LD_IMM64(BPF_REG_8, ip4.u4_addr32), /* See [2]. */