433 static inline bool rt_is_expired(const struct rtable *rth)  in rt_is_expired()  argument
435 	return rth->rt_genid != rt_genid_ipv4(dev_net(rth->dst.dev));  in rt_is_expired()
1476 	struct rtable *rth;  in ip_route_input_mc()  local
1506 	rth = rt_dst_alloc(dev_net(dev)->loopback_dev, flags, RTN_MULTICAST,  in ip_route_input_mc()
1508 	if (!rth)  in ip_route_input_mc()
1512 	rth->dst.tclassid = itag;  in ip_route_input_mc()
1514 	rth->dst.output = ip_rt_bug;  in ip_route_input_mc()
1515 	rth->rt_is_input= 1;  in ip_route_input_mc()
1519 		rth->dst.input = ip_mr_input;  in ip_route_input_mc()
1523 	skb_dst_set(skb, &rth->dst);  in ip_route_input_mc()
1597 	struct rtable *rth;  in __mkroute_input()  local
1644 			rth = rcu_dereference(fnhe->fnhe_rth_input);  in __mkroute_input()
1645 			if (rth && rth->dst.expires &&  in __mkroute_input()
1646 			    time_after(jiffies, rth->dst.expires)) {  in __mkroute_input()
1654 		rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);  in __mkroute_input()
1657 		if (rt_cache_valid(rth)) {  in __mkroute_input()
1658 			skb_dst_set_noref(skb, &rth->dst);  in __mkroute_input()
1663 	rth = rt_dst_alloc(out_dev->dev, 0, res->type,  in __mkroute_input()
1666 	if (!rth) {  in __mkroute_input()
1671 	rth->rt_is_input = 1;  in __mkroute_input()
1673 		rth->rt_table_id = res->table->tb_id;  in __mkroute_input()
1676 	rth->dst.input = ip_forward;  in __mkroute_input()
1678 	rt_set_nexthop(rth, daddr, res, fnhe, res->fi, res->type, itag);  in __mkroute_input()
1679 	if (lwtunnel_output_redirect(rth->dst.lwtstate)) {  in __mkroute_input()
1680 		rth->dst.lwtstate->orig_output = rth->dst.output;  in __mkroute_input()
1681 		rth->dst.output = lwtunnel_output;  in __mkroute_input()
1683 	if (lwtunnel_input_redirect(rth->dst.lwtstate)) {  in __mkroute_input()
1684 		rth->dst.lwtstate->orig_input = rth->dst.input;  in __mkroute_input()
1685 		rth->dst.input = lwtunnel_input;  in __mkroute_input()
1687 	skb_dst_set(skb, &rth->dst);  in __mkroute_input()
1778 	struct rtable	*rth;  in ip_route_input_slow()  local
1884 			rth = rcu_dereference(FIB_RES_NH(res).nh_rth_input);  in ip_route_input_slow()
1885 			if (rt_cache_valid(rth)) {  in ip_route_input_slow()
1886 				skb_dst_set_noref(skb, &rth->dst);  in ip_route_input_slow()
1894 	rth = rt_dst_alloc(net->loopback_dev, flags | RTCF_LOCAL, res.type,  in ip_route_input_slow()
1896 	if (!rth)  in ip_route_input_slow()
1899 	rth->dst.output= ip_rt_bug;  in ip_route_input_slow()
1901 	rth->dst.tclassid = itag;  in ip_route_input_slow()
1903 	rth->rt_is_input = 1;  in ip_route_input_slow()
1905 		rth->rt_table_id = res.table->tb_id;  in ip_route_input_slow()
1909 		rth->dst.input= ip_error;  in ip_route_input_slow()
1910 		rth->dst.error= -err;  in ip_route_input_slow()
1911 		rth->rt_flags 	&= ~RTCF_LOCAL;  in ip_route_input_slow()
1914 		if (unlikely(!rt_cache_route(&FIB_RES_NH(res), rth))) {  in ip_route_input_slow()
1915 			rth->dst.flags |= DST_NOCACHE;  in ip_route_input_slow()
1916 			rt_add_uncached_list(rth);  in ip_route_input_slow()
1919 	skb_dst_set(skb, &rth->dst);  in ip_route_input_slow()
2010 	struct rtable *rth;  in __mkroute_output()  local
2071 			rth = rcu_dereference(*prth);  in __mkroute_output()
2072 			if (rth && rth->dst.expires &&  in __mkroute_output()
2073 			    time_after(jiffies, rth->dst.expires)) {  in __mkroute_output()
2089 		rth = rcu_dereference(*prth);  in __mkroute_output()
2092 		if (rt_cache_valid(rth)) {  in __mkroute_output()
2093 			dst_hold(&rth->dst);  in __mkroute_output()
2094 			return rth;  in __mkroute_output()
2099 	rth = rt_dst_alloc(dev_out, flags, type,  in __mkroute_output()
2103 	if (!rth)  in __mkroute_output()
2106 	rth->rt_iif	= orig_oif ? : 0;  in __mkroute_output()
2108 		rth->rt_table_id = res->table->tb_id;  in __mkroute_output()
2115 			rth->dst.output = ip_mc_output;  in __mkroute_output()
2122 				rth->dst.input = ip_mr_input;  in __mkroute_output()
2123 				rth->dst.output = ip_mc_output;  in __mkroute_output()
2129 	rt_set_nexthop(rth, fl4->daddr, res, fnhe, fi, type, 0);  in __mkroute_output()
2130 	if (lwtunnel_output_redirect(rth->dst.lwtstate))  in __mkroute_output()
2131 		rth->dst.output = lwtunnel_output;  in __mkroute_output()
2133 	return rth;  in __mkroute_output()
2147 	struct rtable *rth;  in __ip_route_output_key_hash()  local
2164 		rth = ERR_PTR(-EINVAL);  in __ip_route_output_key_hash()
2215 		rth = ERR_PTR(-ENODEV);  in __ip_route_output_key_hash()
2221 			rth = ERR_PTR(-ENETUNREACH);  in __ip_route_output_key_hash()
2241 		rth = l3mdev_get_rtable(dev_out, fl4);  in __ip_route_output_key_hash()
2242 		if (rth)  in __ip_route_output_key_hash()
2287 		rth = ERR_PTR(err);  in __ip_route_output_key_hash()
2311 	rth = __mkroute_output(&res, fl4, orig_oif, dev_out, flags);  in __ip_route_output_key_hash()
2315 	return rth;  in __ip_route_output_key_hash()