62 	struct dst_entry *dst = skb_dst(skb);  in ip6_finish_output2()  local
63 	struct net_device *dev = dst->dev;  in ip6_finish_output2()
108 	nexthop = rt6_nexthop((struct rt6_info *)dst, &ipv6_hdr(skb)->daddr);  in ip6_finish_output2()
109 	neigh = __ipv6_neigh_lookup_noref(dst->dev, nexthop);  in ip6_finish_output2()
111 		neigh = __neigh_create(&nd_tbl, nexthop, dst->dev, false);  in ip6_finish_output2()
113 		ret = dst_neigh_output(dst, neigh, skb);  in ip6_finish_output2()
119 	IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);  in ip6_finish_output2()
163 	struct dst_entry *dst = skb_dst(skb);  in ip6_xmit()  local
178 		head_room += sizeof(struct ipv6hdr) + LL_RESERVED_SPACE(dst->dev);  in ip6_xmit()
211 		hlimit = ip6_dst_hoplimit(dst);  in ip6_xmit()
227 	mtu = dst_mtu(dst);  in ip6_xmit()
235 			       net, (struct sock *)sk, skb, NULL, dst->dev,  in ip6_xmit()
239 	skb->dev = dst->dev;  in ip6_xmit()
339 static unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst)  in ip6_dst_mtu_forward()  argument
344 	if (dst_metric_locked(dst, RTAX_MTU)) {  in ip6_dst_mtu_forward()
345 		mtu = dst_metric_raw(dst, RTAX_MTU);  in ip6_dst_mtu_forward()
352 	idev = __in6_dev_get(dst->dev);  in ip6_dst_mtu_forward()
380 	struct dst_entry *dst = skb_dst(skb);  in ip6_forward()  local
383 	struct net *net = dev_net(dst->dev);  in ip6_forward()
399 		IP6_INC_STATS_BH(net, ip6_dst_idev(dst),  in ip6_forward()
429 		skb->dev = dst->dev;  in ip6_forward()
431 		IP6_INC_STATS_BH(net, ip6_dst_idev(dst),  in ip6_forward()
445 			IP6_INC_STATS_BH(net, ip6_dst_idev(dst),  in ip6_forward()
452 		IP6_INC_STATS_BH(net, ip6_dst_idev(dst),  in ip6_forward()
456 	dst = skb_dst(skb);  in ip6_forward()
462 	if (skb->dev == dst->dev && opt->srcrt == 0 && !skb_sec_path(skb)) {  in ip6_forward()
472 		rt = (struct rt6_info *) dst;  in ip6_forward()
501 	mtu = ip6_dst_mtu_forward(dst);  in ip6_forward()
507 		skb->dev = dst->dev;  in ip6_forward()
509 		IP6_INC_STATS_BH(net, ip6_dst_idev(dst),  in ip6_forward()
511 		IP6_INC_STATS_BH(net, ip6_dst_idev(dst),  in ip6_forward()
517 	if (skb_cow(skb, dst->dev->hard_header_len)) {  in ip6_forward()
518 		IP6_INC_STATS_BH(net, ip6_dst_idev(dst),  in ip6_forward()
529 	IP6_INC_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTFORWDATAGRAMS);  in ip6_forward()
530 	IP6_ADD_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTOCTETS, skb->len);  in ip6_forward()
532 		       net, NULL, skb, skb->dev, dst->dev,  in ip6_forward()
536 	IP6_INC_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_INADDRERRORS);  in ip6_forward()
610 	hroom = LL_RESERVED_SPACE(rt->dst.dev);  in ip6_fragment()
672 		dst_hold(&rt->dst);  in ip6_fragment()
700 				IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),  in ip6_fragment()
714 			IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),  in ip6_fragment()
722 		IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),  in ip6_fragment()
746 	troom = rt->dst.dev->needed_tailroom;  in ip6_fragment()
858 					  struct dst_entry *dst,  in ip6_sk_dst_check()  argument
864 	if (!dst)  in ip6_sk_dst_check()
867 	if (dst->ops->family != AF_INET6) {  in ip6_sk_dst_check()
868 		dst_release(dst);  in ip6_sk_dst_check()
872 	rt = (struct rt6_info *)dst;  in ip6_sk_dst_check()
895 	      (fl6->flowi6_oif && fl6->flowi6_oif != dst->dev->ifindex))) {  in ip6_sk_dst_check()
896 		dst_release(dst);  in ip6_sk_dst_check()
897 		dst = NULL;  in ip6_sk_dst_check()
901 	return dst;  in ip6_sk_dst_check()
905 			       struct dst_entry **dst, struct flowi6 *fl6)  in ip6_dst_lookup_tail()  argument
923 	if (ipv6_addr_any(&fl6->saddr) && (!*dst || !(*dst)->error)) {  in ip6_dst_lookup_tail()
925 		bool had_dst = *dst != NULL;  in ip6_dst_lookup_tail()
928 			*dst = ip6_route_output(net, sk, fl6);  in ip6_dst_lookup_tail()
929 		rt = (*dst)->error ? NULL : (struct rt6_info *)*dst;  in ip6_dst_lookup_tail()
940 		if (!had_dst && (*dst)->error) {  in ip6_dst_lookup_tail()
941 			dst_release(*dst);  in ip6_dst_lookup_tail()
942 			*dst = NULL;  in ip6_dst_lookup_tail()
949 	if (!*dst)  in ip6_dst_lookup_tail()
950 		*dst = ip6_route_output_flags(net, sk, fl6, flags);  in ip6_dst_lookup_tail()
952 	err = (*dst)->error;  in ip6_dst_lookup_tail()
965 	rt = (struct rt6_info *) *dst;  in ip6_dst_lookup_tail()
967 	n = __ipv6_neigh_lookup_noref(rt->dst.dev,  in ip6_dst_lookup_tail()
978 				      (*dst)->dev, 1);  in ip6_dst_lookup_tail()
989 			dst_release(*dst);  in ip6_dst_lookup_tail()
992 			*dst = ip6_route_output(net, sk, &fl_gw6);  in ip6_dst_lookup_tail()
993 			err = (*dst)->error;  in ip6_dst_lookup_tail()
1005 	dst_release(*dst);  in ip6_dst_lookup_tail()
1006 	*dst = NULL;  in ip6_dst_lookup_tail()
1020 int ip6_dst_lookup(struct net *net, struct sock *sk, struct dst_entry **dst,  in ip6_dst_lookup()  argument
1023 	*dst = NULL;  in ip6_dst_lookup()
1024 	return ip6_dst_lookup_tail(net, sk, dst, fl6);  in ip6_dst_lookup()
1042 	struct dst_entry *dst = NULL;  in ip6_dst_lookup_flow()  local
1045 	err = ip6_dst_lookup_tail(sock_net(sk), sk, &dst, fl6);  in ip6_dst_lookup_flow()
1051 		fl6->flowi6_oif = l3mdev_fib_oif(dst->dev);  in ip6_dst_lookup_flow()
1053 	return xfrm_lookup_route(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0);  in ip6_dst_lookup_flow()
1074 	struct dst_entry *dst = sk_dst_check(sk, inet6_sk(sk)->dst_cookie);  in ip6_sk_dst_lookup_flow()  local
1076 	dst = ip6_sk_dst_check(sk, dst, fl6);  in ip6_sk_dst_lookup_flow()
1077 	if (!dst)  in ip6_sk_dst_lookup_flow()
1078 		dst = ip6_dst_lookup_flow(sk, fl6, final_dst);  in ip6_sk_dst_lookup_flow()
1080 	return dst;  in ip6_sk_dst_lookup_flow()
1163 	if (!(rt->dst.flags & DST_XFRM_TUNNEL)) {  in ip6_append_data_mtu()
1166 			*mtu = orig_mtu - rt->dst.header_len;  in ip6_append_data_mtu()
1225 	dst_hold(&rt->dst);  in ip6_setup_cork()
1226 	cork->base.dst = &rt->dst;  in ip6_setup_cork()
1230 	if (rt->dst.flags & DST_XFRM_TUNNEL)  in ip6_setup_cork()
1232 		      rt->dst.dev->mtu : dst_mtu(&rt->dst);  in ip6_setup_cork()
1235 		      rt->dst.dev->mtu : dst_mtu(rt->dst.path);  in ip6_setup_cork()
1241 	if (dst_allfrag(rt->dst.path))  in ip6_setup_cork()
1269 	struct rt6_info *rt = (struct rt6_info *)cork->dst;  in __ip6_append_data()
1277 		dst_exthdrlen = rt->dst.header_len - rt->rt6i_nfheader_len;  in __ip6_append_data()
1283 	hh_len = LL_RESERVED_SPACE(rt->dst.dev);  in __ip6_append_data()
1292 		     (dst_allfrag(&rt->dst) ?  in __ip6_append_data()
1324 	    rt->dst.dev->features & NETIF_F_V6_CSUM)  in __ip6_append_data()
1354 	    (rt->dst.dev->features & NETIF_F_UFO) &&  in __ip6_append_data()
1400 				datalen = maxfraglen - fragheaderlen - rt->dst.trailer_len;  in __ip6_append_data()
1402 			    !(rt->dst.dev->features&NETIF_F_SG))  in __ip6_append_data()
1414 				datalen += rt->dst.trailer_len;  in __ip6_append_data()
1417 			alloclen += rt->dst.trailer_len;  in __ip6_append_data()
1504 		if (!(rt->dst.dev->features&NETIF_F_SG)) {  in __ip6_append_data()
1608 	if (cork->base.dst) {  in ip6_cork_release()
1609 		dst_release(cork->base.dst);  in ip6_cork_release()
1610 		cork->base.dst = NULL;  in ip6_cork_release()
1628 	struct rt6_info *rt = (struct rt6_info *)cork->base.dst;  in __ip6_make_skb()
1676 	skb_dst_set(skb, dst_clone(&rt->dst));  in __ip6_make_skb()