taglinefilesource code
max_header371include/net/sock.hunsigned short    max_header;
max_header721net/ipv4/tcp.cif (sock_wspace(sk) < sk->mtu+128+sk->prot->max_header)
max_header1035net/ipv4/tcp.ctmp = copy + sk->prot->max_header + 15;
max_header1005net/ipv4/tcp_output.csk->prot->max_header + 15,