513 	struct ip6_tnl *tunnel;  in ip6gre_rcv()  local
516 	tunnel = ip6gre_tunnel_lookup(skb->dev,  in ip6gre_rcv()
519 	if (tunnel) {  in ip6gre_rcv()
520 		if (tunnel->parms.collect_md) {  in ip6gre_rcv()
532 			ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in ip6gre_rcv()
534 			ip6_tnl_rcv(tunnel, skb, tpi, NULL, log_ecn_error);  in ip6gre_rcv()
550 	struct ip6_tnl *tunnel;  in ip6erspan_rcv()  local
561 	tunnel = ip6gre_tunnel_lookup(skb->dev,  in ip6erspan_rcv()
564 	if (tunnel) {  in ip6erspan_rcv()
578 		if (tunnel->parms.collect_md) {  in ip6erspan_rcv()
603 			ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in ip6erspan_rcv()
606 			ip6_tnl_rcv(tunnel, skb, tpi, NULL, log_ecn_error);  in ip6erspan_rcv()
728 	struct ip6_tnl *tunnel = netdev_priv(dev);  in __gre6_xmit()  local
737 		fl6->daddr = tunnel->parms.raddr;  in __gre6_xmit()
739 	if (skb_cow_head(skb, dev->needed_headroom ?: tunnel->hlen))  in __gre6_xmit()
745 	if (tunnel->parms.collect_md) {  in __gre6_xmit()
766 		tunnel->tun_hlen = gre_calc_hlen(flags);  in __gre6_xmit()
768 		gre_build_header(skb, tunnel->tun_hlen,  in __gre6_xmit()
771 				 (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++)  in __gre6_xmit()
775 		if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre6_xmit()
776 			tunnel->o_seqno++;  in __gre6_xmit()
778 		gre_build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags,  in __gre6_xmit()
779 				 protocol, tunnel->parms.o_key,  in __gre6_xmit()
780 				 htonl(tunnel->o_seqno));  in __gre6_xmit()
1150 static int ip6gre_calc_hlen(struct ip6_tnl *tunnel)  in ip6gre_calc_hlen()  argument
1154 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in ip6gre_calc_hlen()
1155 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen;  in ip6gre_calc_hlen()
1157 	t_hlen = tunnel->hlen + sizeof(struct ipv6hdr);  in ip6gre_calc_hlen()
1158 	tunnel->dev->needed_headroom = LL_MAX_HEADER + t_hlen;  in ip6gre_calc_hlen()
1447 	struct ip6_tnl *tunnel;  in ip6gre_tunnel_init_common()  local
1451 	tunnel = netdev_priv(dev);  in ip6gre_tunnel_init_common()
1453 	tunnel->dev = dev;  in ip6gre_tunnel_init_common()
1454 	tunnel->net = dev_net(dev);  in ip6gre_tunnel_init_common()
1455 	strcpy(tunnel->parms.name, dev->name);  in ip6gre_tunnel_init_common()
1461 	ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);  in ip6gre_tunnel_init_common()
1465 	ret = gro_cells_init(&tunnel->gro_cells, dev);  in ip6gre_tunnel_init_common()
1469 	t_hlen = ip6gre_calc_hlen(tunnel);  in ip6gre_tunnel_init_common()
1473 	if (!(tunnel->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))  in ip6gre_tunnel_init_common()
1476 	if (tunnel->parms.collect_md) {  in ip6gre_tunnel_init_common()
1485 	dst_cache_destroy(&tunnel->dst_cache);  in ip6gre_tunnel_init_common()
1494 	struct ip6_tnl *tunnel;  in ip6gre_tunnel_init()  local
1501 	tunnel = netdev_priv(dev);  in ip6gre_tunnel_init()
1503 	if (tunnel->parms.collect_md)  in ip6gre_tunnel_init()
1506 	memcpy(dev->dev_addr, &tunnel->parms.laddr, sizeof(struct in6_addr));  in ip6gre_tunnel_init()
1507 	memcpy(dev->broadcast, &tunnel->parms.raddr, sizeof(struct in6_addr));  in ip6gre_tunnel_init()
1509 	if (ipv6_addr_any(&tunnel->parms.raddr))  in ip6gre_tunnel_init()
1517 	struct ip6_tnl *tunnel = netdev_priv(dev);  in ip6gre_fb_tunnel_init()  local
1519 	tunnel->dev = dev;  in ip6gre_fb_tunnel_init()
1520 	tunnel->net = dev_net(dev);  in ip6gre_fb_tunnel_init()
1521 	strcpy(tunnel->parms.name, dev->name);  in ip6gre_fb_tunnel_init()
1523 	tunnel->hlen		= sizeof(struct ipv6hdr) + 4;  in ip6gre_fb_tunnel_init()
1820 static int ip6erspan_calc_hlen(struct ip6_tnl *tunnel)  in ip6erspan_calc_hlen()  argument
1824 	tunnel->tun_hlen = 8;  in ip6erspan_calc_hlen()
1825 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen +  in ip6erspan_calc_hlen()
1826 		       erspan_hdr_len(tunnel->parms.erspan_ver);  in ip6erspan_calc_hlen()
1828 	t_hlen = tunnel->hlen + sizeof(struct ipv6hdr);  in ip6erspan_calc_hlen()
1829 	tunnel->dev->needed_headroom = LL_MAX_HEADER + t_hlen;  in ip6erspan_calc_hlen()
1835 	struct ip6_tnl *tunnel;  in ip6erspan_tap_init()  local
1839 	tunnel = netdev_priv(dev);  in ip6erspan_tap_init()
1841 	tunnel->dev = dev;  in ip6erspan_tap_init()
1842 	tunnel->net = dev_net(dev);  in ip6erspan_tap_init()
1843 	strcpy(tunnel->parms.name, dev->name);  in ip6erspan_tap_init()
1849 	ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);  in ip6erspan_tap_init()
1853 	ret = gro_cells_init(&tunnel->gro_cells, dev);  in ip6erspan_tap_init()
1857 	t_hlen = ip6erspan_calc_hlen(tunnel);  in ip6erspan_tap_init()
1861 	if (!(tunnel->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))  in ip6erspan_tap_init()
1865 	ip6erspan_tnl_link_config(tunnel, 1);  in ip6erspan_tap_init()
1870 	dst_cache_destroy(&tunnel->dst_cache);  in ip6erspan_tap_init()