taglinefilesource code
max_header261include/net/sock.hunsigned short  max_header;
max_header1001net/ipv4/tcp.cif (sk->prot->wspace(sk) < sk->mtu+128+sk->prot->max_header)
max_header1602net/ipv4/tcp.cskb = prot->wmalloc(sk, sk->mtu + 128 + prot->max_header + 15, 0, GFP_KERNEL);
max_header1612net/ipv4/tcp.cskb = prot->wmalloc(sk, copy + prot->max_header + 15 , 0, GFP_KERNEL);