390 	struct ip_tunnel *tunnel;  in ipgre_rcv()  local
398 	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi->flags,  in ipgre_rcv()
401 	if (tunnel) {  in ipgre_rcv()
403 		if (tunnel->collect_md) {  in ipgre_rcv()
414 		ip_tunnel_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in ipgre_rcv()
486 	struct ip_tunnel *tunnel = netdev_priv(dev);  in __gre_xmit()  local
488 	if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre_xmit()
489 		tunnel->o_seqno++;  in __gre_xmit()
492 	build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags,  in __gre_xmit()
493 		     proto, tunnel->parms.o_key, htonl(tunnel->o_seqno));  in __gre_xmit()
604 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ipgre_xmit()  local
607 	if (tunnel->collect_md) {  in ipgre_xmit()
615 				      (tunnel->hlen + sizeof(struct iphdr))))  in ipgre_xmit()
623 		skb_pull(skb, tunnel->hlen + sizeof(struct iphdr));  in ipgre_xmit()
629 		tnl_params = &tunnel->parms.iph;  in ipgre_xmit()
632 	skb = gre_handle_offloads(skb, !!(tunnel->parms.o_flags&TUNNEL_CSUM));  in ipgre_xmit()
649 	struct ip_tunnel *tunnel = netdev_priv(dev);  in gre_tap_xmit()  local
651 	if (tunnel->collect_md) {  in gre_tap_xmit()
656 	skb = gre_handle_offloads(skb, !!(tunnel->parms.o_flags&TUNNEL_CSUM));  in gre_tap_xmit()
663 	__gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_TEB));  in gre_tap_xmit()
836 	struct ip_tunnel *tunnel;  in __gre_tunnel_init()  local
839 	tunnel = netdev_priv(dev);  in __gre_tunnel_init()
840 	tunnel->tun_hlen = ip_gre_calc_hlen(tunnel->parms.o_flags);  in __gre_tunnel_init()
841 	tunnel->parms.iph.protocol = IPPROTO_GRE;  in __gre_tunnel_init()
843 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen;  in __gre_tunnel_init()
845 	t_hlen = tunnel->hlen + sizeof(struct iphdr);  in __gre_tunnel_init()
853 	if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {  in __gre_tunnel_init()
866 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ipgre_tunnel_init()  local
867 	struct iphdr *iph = &tunnel->parms.iph;  in ipgre_tunnel_init()