492 	struct ip6_tnl *tunnel;  in ip6gre_rcv()  local
495 	tunnel = ip6gre_tunnel_lookup(skb->dev,  in ip6gre_rcv()
498 	if (tunnel) {  in ip6gre_rcv()
499 		if (tunnel->parms.collect_md) {  in ip6gre_rcv()
511 			ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in ip6gre_rcv()
513 			ip6_tnl_rcv(tunnel, skb, tpi, NULL, log_ecn_error);  in ip6gre_rcv()
529 	struct ip6_tnl *tunnel;  in ip6erspan_rcv()  local
536 	tunnel = ip6gre_tunnel_lookup(skb->dev,  in ip6erspan_rcv()
539 	if (tunnel) {  in ip6erspan_rcv()
550 		if (tunnel->parms.collect_md) {  in ip6erspan_rcv()
584 			ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in ip6erspan_rcv()
587 			ip6_tnl_rcv(tunnel, skb, tpi, NULL, log_ecn_error);  in ip6erspan_rcv()
710 	struct ip6_tnl *tunnel = netdev_priv(dev);  in __gre6_xmit()  local
719 		fl6->daddr = tunnel->parms.raddr;  in __gre6_xmit()
721 	if (skb_cow_head(skb, dev->needed_headroom ?: tunnel->hlen))  in __gre6_xmit()
727 	if (tunnel->parms.collect_md) {  in __gre6_xmit()
748 		tunnel->tun_hlen = gre_calc_hlen(flags);  in __gre6_xmit()
750 		gre_build_header(skb, tunnel->tun_hlen,  in __gre6_xmit()
753 				 (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++)  in __gre6_xmit()
757 		if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre6_xmit()
758 			tunnel->o_seqno++;  in __gre6_xmit()
760 		gre_build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags,  in __gre6_xmit()
761 				 protocol, tunnel->parms.o_key,  in __gre6_xmit()
762 				 htonl(tunnel->o_seqno));  in __gre6_xmit()
1138 static int ip6gre_calc_hlen(struct ip6_tnl *tunnel)  in ip6gre_calc_hlen()  argument
1142 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in ip6gre_calc_hlen()
1143 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen;  in ip6gre_calc_hlen()
1145 	t_hlen = tunnel->hlen + sizeof(struct ipv6hdr);  in ip6gre_calc_hlen()
1146 	tunnel->dev->needed_headroom = LL_MAX_HEADER + t_hlen;  in ip6gre_calc_hlen()
1439 	struct ip6_tnl *tunnel;  in ip6gre_tunnel_init_common()  local
1443 	tunnel = netdev_priv(dev);  in ip6gre_tunnel_init_common()
1445 	tunnel->dev = dev;  in ip6gre_tunnel_init_common()
1446 	tunnel->net = dev_net(dev);  in ip6gre_tunnel_init_common()
1447 	strcpy(tunnel->parms.name, dev->name);  in ip6gre_tunnel_init_common()
1453 	ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);  in ip6gre_tunnel_init_common()
1457 	ret = gro_cells_init(&tunnel->gro_cells, dev);  in ip6gre_tunnel_init_common()
1461 	t_hlen = ip6gre_calc_hlen(tunnel);  in ip6gre_tunnel_init_common()
1465 	if (!(tunnel->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))  in ip6gre_tunnel_init_common()
1468 	if (tunnel->parms.collect_md) {  in ip6gre_tunnel_init_common()
1477 	dst_cache_destroy(&tunnel->dst_cache);  in ip6gre_tunnel_init_common()
1486 	struct ip6_tnl *tunnel;  in ip6gre_tunnel_init()  local
1493 	tunnel = netdev_priv(dev);  in ip6gre_tunnel_init()
1495 	if (tunnel->parms.collect_md)  in ip6gre_tunnel_init()
1498 	memcpy(dev->dev_addr, &tunnel->parms.laddr, sizeof(struct in6_addr));  in ip6gre_tunnel_init()
1499 	memcpy(dev->broadcast, &tunnel->parms.raddr, sizeof(struct in6_addr));  in ip6gre_tunnel_init()
1501 	if (ipv6_addr_any(&tunnel->parms.raddr))  in ip6gre_tunnel_init()
1509 	struct ip6_tnl *tunnel = netdev_priv(dev);  in ip6gre_fb_tunnel_init()  local
1511 	tunnel->dev = dev;  in ip6gre_fb_tunnel_init()
1512 	tunnel->net = dev_net(dev);  in ip6gre_fb_tunnel_init()
1513 	strcpy(tunnel->parms.name, dev->name);  in ip6gre_fb_tunnel_init()
1515 	tunnel->hlen		= sizeof(struct ipv6hdr) + 4;  in ip6gre_fb_tunnel_init()
1819 static int ip6erspan_calc_hlen(struct ip6_tnl *tunnel)  in ip6erspan_calc_hlen()  argument
1823 	tunnel->tun_hlen = 8;  in ip6erspan_calc_hlen()
1824 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen +  in ip6erspan_calc_hlen()
1825 		       erspan_hdr_len(tunnel->parms.erspan_ver);  in ip6erspan_calc_hlen()
1827 	t_hlen = tunnel->hlen + sizeof(struct ipv6hdr);  in ip6erspan_calc_hlen()
1828 	tunnel->dev->needed_headroom = LL_MAX_HEADER + t_hlen;  in ip6erspan_calc_hlen()
1834 	struct ip6_tnl *tunnel;  in ip6erspan_tap_init()  local
1838 	tunnel = netdev_priv(dev);  in ip6erspan_tap_init()
1840 	tunnel->dev = dev;  in ip6erspan_tap_init()
1841 	tunnel->net = dev_net(dev);  in ip6erspan_tap_init()
1842 	strcpy(tunnel->parms.name, dev->name);  in ip6erspan_tap_init()
1848 	ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);  in ip6erspan_tap_init()
1852 	ret = gro_cells_init(&tunnel->gro_cells, dev);  in ip6erspan_tap_init()
1856 	t_hlen = ip6erspan_calc_hlen(tunnel);  in ip6erspan_tap_init()
1860 	if (!(tunnel->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))  in ip6erspan_tap_init()
1864 	ip6erspan_tnl_link_config(tunnel, 1);  in ip6erspan_tap_init()
1869 	dst_cache_destroy(&tunnel->dst_cache);  in ip6erspan_tap_init()