496 	struct ip6_tnl *tunnel;  in ip6gre_rcv()  local
499 	tunnel = ip6gre_tunnel_lookup(skb->dev,  in ip6gre_rcv()
502 	if (tunnel) {  in ip6gre_rcv()
503 		if (tunnel->parms.collect_md) {  in ip6gre_rcv()
515 			ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in ip6gre_rcv()
517 			ip6_tnl_rcv(tunnel, skb, tpi, NULL, log_ecn_error);  in ip6gre_rcv()
533 	struct ip6_tnl *tunnel;  in ip6erspan_rcv()  local
540 	tunnel = ip6gre_tunnel_lookup(skb->dev,  in ip6erspan_rcv()
543 	if (tunnel) {  in ip6erspan_rcv()
554 		if (tunnel->parms.collect_md) {  in ip6erspan_rcv()
588 			ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in ip6erspan_rcv()
591 			ip6_tnl_rcv(tunnel, skb, tpi, NULL, log_ecn_error);  in ip6erspan_rcv()
725 	struct ip6_tnl *tunnel = netdev_priv(dev);  in __gre6_xmit()  local
734 		fl6->daddr = tunnel->parms.raddr;  in __gre6_xmit()
736 	if (skb_cow_head(skb, dev->needed_headroom ?: tunnel->hlen))  in __gre6_xmit()
742 	if (tunnel->parms.collect_md) {  in __gre6_xmit()
762 		tunnel->tun_hlen = gre_calc_hlen(flags);  in __gre6_xmit()
764 		gre_build_header(skb, tunnel->tun_hlen,  in __gre6_xmit()
767 				 (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++)  in __gre6_xmit()
771 		if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre6_xmit()
772 			tunnel->o_seqno++;  in __gre6_xmit()
774 		gre_build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags,  in __gre6_xmit()
775 				 protocol, tunnel->parms.o_key,  in __gre6_xmit()
776 				 htonl(tunnel->o_seqno));  in __gre6_xmit()
1158 static int ip6gre_calc_hlen(struct ip6_tnl *tunnel)  in ip6gre_calc_hlen()  argument
1162 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in ip6gre_calc_hlen()
1163 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen;  in ip6gre_calc_hlen()
1165 	t_hlen = tunnel->hlen + sizeof(struct ipv6hdr);  in ip6gre_calc_hlen()
1167 	if (tunnel->dev->header_ops)  in ip6gre_calc_hlen()
1168 		tunnel->dev->hard_header_len = LL_MAX_HEADER + t_hlen;  in ip6gre_calc_hlen()
1170 		tunnel->dev->needed_headroom = LL_MAX_HEADER + t_hlen;  in ip6gre_calc_hlen()
1465 	struct ip6_tnl *tunnel;  in ip6gre_tunnel_init_common()  local
1469 	tunnel = netdev_priv(dev);  in ip6gre_tunnel_init_common()
1471 	tunnel->dev = dev;  in ip6gre_tunnel_init_common()
1472 	tunnel->net = dev_net(dev);  in ip6gre_tunnel_init_common()
1473 	strcpy(tunnel->parms.name, dev->name);  in ip6gre_tunnel_init_common()
1479 	ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);  in ip6gre_tunnel_init_common()
1483 	ret = gro_cells_init(&tunnel->gro_cells, dev);  in ip6gre_tunnel_init_common()
1487 	t_hlen = ip6gre_calc_hlen(tunnel);  in ip6gre_tunnel_init_common()
1491 	if (!(tunnel->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))  in ip6gre_tunnel_init_common()
1494 	if (tunnel->parms.collect_md) {  in ip6gre_tunnel_init_common()
1503 	dst_cache_destroy(&tunnel->dst_cache);  in ip6gre_tunnel_init_common()
1512 	struct ip6_tnl *tunnel;  in ip6gre_tunnel_init()  local
1519 	tunnel = netdev_priv(dev);  in ip6gre_tunnel_init()
1521 	if (tunnel->parms.collect_md)  in ip6gre_tunnel_init()
1524 	memcpy(dev->dev_addr, &tunnel->parms.laddr, sizeof(struct in6_addr));  in ip6gre_tunnel_init()
1525 	memcpy(dev->broadcast, &tunnel->parms.raddr, sizeof(struct in6_addr));  in ip6gre_tunnel_init()
1527 	if (ipv6_addr_any(&tunnel->parms.raddr))  in ip6gre_tunnel_init()
1535 	struct ip6_tnl *tunnel = netdev_priv(dev);  in ip6gre_fb_tunnel_init()  local
1537 	tunnel->dev = dev;  in ip6gre_fb_tunnel_init()
1538 	tunnel->net = dev_net(dev);  in ip6gre_fb_tunnel_init()
1539 	strcpy(tunnel->parms.name, dev->name);  in ip6gre_fb_tunnel_init()
1541 	tunnel->hlen		= sizeof(struct ipv6hdr) + 4;  in ip6gre_fb_tunnel_init()
1844 static int ip6erspan_calc_hlen(struct ip6_tnl *tunnel)  in ip6erspan_calc_hlen()  argument
1848 	tunnel->tun_hlen = 8;  in ip6erspan_calc_hlen()
1849 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen +  in ip6erspan_calc_hlen()
1850 		       erspan_hdr_len(tunnel->parms.erspan_ver);  in ip6erspan_calc_hlen()
1852 	t_hlen = tunnel->hlen + sizeof(struct ipv6hdr);  in ip6erspan_calc_hlen()
1853 	tunnel->dev->needed_headroom = LL_MAX_HEADER + t_hlen;  in ip6erspan_calc_hlen()
1859 	struct ip6_tnl *tunnel;  in ip6erspan_tap_init()  local
1863 	tunnel = netdev_priv(dev);  in ip6erspan_tap_init()
1865 	tunnel->dev = dev;  in ip6erspan_tap_init()
1866 	tunnel->net = dev_net(dev);  in ip6erspan_tap_init()
1867 	strcpy(tunnel->parms.name, dev->name);  in ip6erspan_tap_init()
1873 	ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);  in ip6erspan_tap_init()
1877 	ret = gro_cells_init(&tunnel->gro_cells, dev);  in ip6erspan_tap_init()
1881 	t_hlen = ip6erspan_calc_hlen(tunnel);  in ip6erspan_tap_init()
1885 	if (!(tunnel->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))  in ip6erspan_tap_init()
1889 	ip6erspan_tnl_link_config(tunnel, 1);  in ip6erspan_tap_init()
1895 	dst_cache_destroy(&tunnel->dst_cache);  in ip6erspan_tap_init()