361 	int hlen = LL_MAX_HEADER;  in ip_tunnel_bind_dev()  local
363 	int t_hlen = tunnel->hlen + sizeof(struct iphdr);  in ip_tunnel_bind_dev()
390 		hlen = tdev->hard_header_len + tdev->needed_headroom;  in ip_tunnel_bind_dev()
395 	dev->needed_headroom = t_hlen + hlen;  in ip_tunnel_bind_dev()
509 	int hlen;  in ip_tunnel_encap_setup()  local
513 	hlen = ip_encap_hlen(ipencap);  in ip_tunnel_encap_setup()
514 	if (hlen < 0)  in ip_tunnel_encap_setup()
515 		return hlen;  in ip_tunnel_encap_setup()
522 	t->encap_hlen = hlen;  in ip_tunnel_encap_setup()
523 	t->hlen = t->encap_hlen + t->tun_hlen;  in ip_tunnel_encap_setup()
556 		guehdr->hlen = 0;  in fou_build_header()
594 	int pkt_size = skb->len - tunnel->hlen - dev->hard_header_len;  in tnl_update_pmtu()
599 					- sizeof(struct iphdr) - tunnel->hlen;  in tnl_update_pmtu()
943 	int t_hlen = tunnel->hlen + sizeof(struct iphdr);  in ip_tunnel_change_mtu()