286 	int hlen = LL_MAX_HEADER;  in ip_tunnel_bind_dev()  local
288 	int t_hlen = tunnel->hlen + sizeof(struct iphdr);  in ip_tunnel_bind_dev()
317 		hlen = tdev->hard_header_len + tdev->needed_headroom;  in ip_tunnel_bind_dev()
321 	dev->needed_headroom = t_hlen + hlen;  in ip_tunnel_bind_dev()
350 	t_hlen = nt->hlen + sizeof(struct iphdr);  in ip_tunnel_create()
469 	int hlen;  in ip_tunnel_encap_setup()  local
473 	hlen = ip_encap_hlen(ipencap);  in ip_tunnel_encap_setup()
474 	if (hlen < 0)  in ip_tunnel_encap_setup()
475 		return hlen;  in ip_tunnel_encap_setup()
482 	t->encap_hlen = hlen;  in ip_tunnel_encap_setup()
483 	t->hlen = t->encap_hlen + t->tun_hlen;  in ip_tunnel_encap_setup()
498 	tunnel_hlen = md ? tunnel_hlen : tunnel->hlen;  in tnl_update_pmtu()
972 	int t_hlen = tunnel->hlen + sizeof(struct iphdr);  in __ip_tunnel_change_mtu()
1150 		unsigned int max = IP_MAX_MTU - dev->hard_header_len - nt->hlen;  in ip_tunnel_newlink()