293 		struct rtable *rt;  in ip_tunnel_bind_dev()  local
299 		rt = ip_route_output_key(tunnel->net, &fl4);  in ip_tunnel_bind_dev()
301 		if (!IS_ERR(rt)) {  in ip_tunnel_bind_dev()
302 			tdev = rt->dst.dev;  in ip_tunnel_bind_dev()
303 			ip_rt_put(rt);  in ip_tunnel_bind_dev()
485 			    struct rtable *rt, __be16 df,  in tnl_update_pmtu()  argument
498 		mtu = dst_mtu(&rt->dst) - (sizeof(struct iphdr) + tunnel_hlen);  in tnl_update_pmtu()
551 	struct rtable *rt = NULL;  in ip_md_tunnel_xmit()  local
579 		rt = dst_cache_get_ip4(&tun_info->dst_cache, &fl4.saddr);  in ip_md_tunnel_xmit()
580 	if (!rt) {  in ip_md_tunnel_xmit()
581 		rt = ip_route_output_key(tunnel->net, &fl4);  in ip_md_tunnel_xmit()
582 		if (IS_ERR(rt)) {  in ip_md_tunnel_xmit()
587 			dst_cache_set_ip4(&tun_info->dst_cache, &rt->dst,  in ip_md_tunnel_xmit()
590 	if (rt->dst.dev == dev) {  in ip_md_tunnel_xmit()
591 		ip_rt_put(rt);  in ip_md_tunnel_xmit()
598 	if (tnl_update_pmtu(dev, skb, rt, df, inner_iph, tunnel_hlen,  in ip_md_tunnel_xmit()
600 		ip_rt_put(rt);  in ip_md_tunnel_xmit()
612 			ttl = ip4_dst_hoplimit(&rt->dst);  in ip_md_tunnel_xmit()
615 	headroom += LL_RESERVED_SPACE(rt->dst.dev) + rt->dst.header_len;  in ip_md_tunnel_xmit()
620 		ip_rt_put(rt);  in ip_md_tunnel_xmit()
623 	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, proto, tos, ttl,  in ip_md_tunnel_xmit()
643 	struct rtable *rt = NULL;		/* Route to the other host */  in ip_tunnel_xmit()  local
675 			rt = skb_rtable(skb);  in ip_tunnel_xmit()
676 			dst = rt_nexthop(rt, inner_iph->daddr);  in ip_tunnel_xmit()
738 			rt = dst_cache_get_ip4(&tun_info->dst_cache,  in ip_tunnel_xmit()
741 		rt = connected ? dst_cache_get_ip4(&tunnel->dst_cache,  in ip_tunnel_xmit()
745 	if (!rt) {  in ip_tunnel_xmit()
746 		rt = ip_route_output_key(tunnel->net, &fl4);  in ip_tunnel_xmit()
748 		if (IS_ERR(rt)) {  in ip_tunnel_xmit()
753 			dst_cache_set_ip4(&tun_info->dst_cache, &rt->dst,  in ip_tunnel_xmit()
756 			dst_cache_set_ip4(&tunnel->dst_cache, &rt->dst,  in ip_tunnel_xmit()
760 	if (rt->dst.dev == dev) {  in ip_tunnel_xmit()
761 		ip_rt_put(rt);  in ip_tunnel_xmit()
770 	if (tnl_update_pmtu(dev, skb, rt, df, inner_iph, 0, 0, false)) {  in ip_tunnel_xmit()
771 		ip_rt_put(rt);  in ip_tunnel_xmit()
795 			ttl = ip4_dst_hoplimit(&rt->dst);  in ip_tunnel_xmit()
798 	max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr)  in ip_tunnel_xmit()
799 			+ rt->dst.header_len + ip_encap_hlen(&tunnel->encap);  in ip_tunnel_xmit()
804 		ip_rt_put(rt);  in ip_tunnel_xmit()
810 	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, protocol, tos, ttl,  in ip_tunnel_xmit()