429 static inline bool rt_is_expired(const struct rtable *rth)  in rt_is_expired()  argument
431 	return rth->rt_genid != rt_genid_ipv4(dev_net(rth->dst.dev));  in rt_is_expired()
1448 	struct rtable *rth;  in ip_route_input_mc()  local
1475 	rth = rt_dst_alloc(dev_net(dev)->loopback_dev,  in ip_route_input_mc()
1477 	if (!rth)  in ip_route_input_mc()
1481 	rth->dst.tclassid = itag;  in ip_route_input_mc()
1483 	rth->dst.output = ip_rt_bug;  in ip_route_input_mc()
1485 	rth->rt_genid	= rt_genid_ipv4(dev_net(dev));  in ip_route_input_mc()
1486 	rth->rt_flags	= RTCF_MULTICAST;  in ip_route_input_mc()
1487 	rth->rt_type	= RTN_MULTICAST;  in ip_route_input_mc()
1488 	rth->rt_is_input= 1;  in ip_route_input_mc()
1489 	rth->rt_iif	= 0;  in ip_route_input_mc()
1490 	rth->rt_pmtu	= 0;  in ip_route_input_mc()
1491 	rth->rt_gateway	= 0;  in ip_route_input_mc()
1492 	rth->rt_uses_gateway = 0;  in ip_route_input_mc()
1493 	INIT_LIST_HEAD(&rth->rt_uncached);  in ip_route_input_mc()
1495 		rth->dst.input= ip_local_deliver;  in ip_route_input_mc()
1496 		rth->rt_flags |= RTCF_LOCAL;  in ip_route_input_mc()
1501 		rth->dst.input = ip_mr_input;  in ip_route_input_mc()
1505 	skb_dst_set(skb, &rth->dst);  in ip_route_input_mc()
1579 	struct rtable *rth;  in __mkroute_input()  local
1627 			rth = rcu_dereference(fnhe->fnhe_rth_input);  in __mkroute_input()
1628 			if (rth && rth->dst.expires &&  in __mkroute_input()
1629 			    time_after(jiffies, rth->dst.expires)) {  in __mkroute_input()
1637 		rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);  in __mkroute_input()
1640 		if (rt_cache_valid(rth)) {  in __mkroute_input()
1641 			skb_dst_set_noref(skb, &rth->dst);  in __mkroute_input()
1646 	rth = rt_dst_alloc(out_dev->dev,  in __mkroute_input()
1649 	if (!rth) {  in __mkroute_input()
1654 	rth->rt_genid = rt_genid_ipv4(dev_net(rth->dst.dev));  in __mkroute_input()
1655 	rth->rt_flags = flags;  in __mkroute_input()
1656 	rth->rt_type = res->type;  in __mkroute_input()
1657 	rth->rt_is_input = 1;  in __mkroute_input()
1658 	rth->rt_iif 	= 0;  in __mkroute_input()
1659 	rth->rt_pmtu	= 0;  in __mkroute_input()
1660 	rth->rt_gateway	= 0;  in __mkroute_input()
1661 	rth->rt_uses_gateway = 0;  in __mkroute_input()
1662 	INIT_LIST_HEAD(&rth->rt_uncached);  in __mkroute_input()
1665 	rth->dst.input = ip_forward;  in __mkroute_input()
1666 	rth->dst.output = ip_output;  in __mkroute_input()
1668 	rt_set_nexthop(rth, daddr, res, fnhe, res->fi, res->type, itag);  in __mkroute_input()
1669 	skb_dst_set(skb, &rth->dst);  in __mkroute_input()
1710 	struct rtable	*rth;  in ip_route_input_slow()  local
1807 			rth = rcu_dereference(FIB_RES_NH(res).nh_rth_input);  in ip_route_input_slow()
1808 			if (rt_cache_valid(rth)) {  in ip_route_input_slow()
1809 				skb_dst_set_noref(skb, &rth->dst);  in ip_route_input_slow()
1817 	rth = rt_dst_alloc(net->loopback_dev,  in ip_route_input_slow()
1819 	if (!rth)  in ip_route_input_slow()
1822 	rth->dst.input= ip_local_deliver;  in ip_route_input_slow()
1823 	rth->dst.output= ip_rt_bug;  in ip_route_input_slow()
1825 	rth->dst.tclassid = itag;  in ip_route_input_slow()
1828 	rth->rt_genid = rt_genid_ipv4(net);  in ip_route_input_slow()
1829 	rth->rt_flags 	= flags|RTCF_LOCAL;  in ip_route_input_slow()
1830 	rth->rt_type	= res.type;  in ip_route_input_slow()
1831 	rth->rt_is_input = 1;  in ip_route_input_slow()
1832 	rth->rt_iif	= 0;  in ip_route_input_slow()
1833 	rth->rt_pmtu	= 0;  in ip_route_input_slow()
1834 	rth->rt_gateway	= 0;  in ip_route_input_slow()
1835 	rth->rt_uses_gateway = 0;  in ip_route_input_slow()
1836 	INIT_LIST_HEAD(&rth->rt_uncached);  in ip_route_input_slow()
1839 		rth->dst.input= ip_error;  in ip_route_input_slow()
1840 		rth->dst.error= -err;  in ip_route_input_slow()
1841 		rth->rt_flags 	&= ~RTCF_LOCAL;  in ip_route_input_slow()
1844 		if (unlikely(!rt_cache_route(&FIB_RES_NH(res), rth))) {  in ip_route_input_slow()
1845 			rth->dst.flags |= DST_NOCACHE;  in ip_route_input_slow()
1846 			rt_add_uncached_list(rth);  in ip_route_input_slow()
1849 	skb_dst_set(skb, &rth->dst);  in ip_route_input_slow()
1941 	struct rtable *rth;  in __mkroute_output()  local
1990 			rth = rcu_dereference(*prth);  in __mkroute_output()
1991 			if (rth && rth->dst.expires &&  in __mkroute_output()
1992 			    time_after(jiffies, rth->dst.expires)) {  in __mkroute_output()
2008 		rth = rcu_dereference(*prth);  in __mkroute_output()
2011 		if (rt_cache_valid(rth)) {  in __mkroute_output()
2012 			dst_hold(&rth->dst);  in __mkroute_output()
2013 			return rth;  in __mkroute_output()
2018 	rth = rt_dst_alloc(dev_out,  in __mkroute_output()
2022 	if (!rth)  in __mkroute_output()
2025 	rth->dst.output = ip_output;  in __mkroute_output()
2027 	rth->rt_genid = rt_genid_ipv4(dev_net(dev_out));  in __mkroute_output()
2028 	rth->rt_flags	= flags;  in __mkroute_output()
2029 	rth->rt_type	= type;  in __mkroute_output()
2030 	rth->rt_is_input = 0;  in __mkroute_output()
2031 	rth->rt_iif	= orig_oif ? : 0;  in __mkroute_output()
2032 	rth->rt_pmtu	= 0;  in __mkroute_output()
2033 	rth->rt_gateway = 0;  in __mkroute_output()
2034 	rth->rt_uses_gateway = 0;  in __mkroute_output()
2035 	INIT_LIST_HEAD(&rth->rt_uncached);  in __mkroute_output()
2040 		rth->dst.input = ip_local_deliver;  in __mkroute_output()
2044 			rth->dst.output = ip_mc_output;  in __mkroute_output()
2051 				rth->dst.input = ip_mr_input;  in __mkroute_output()
2052 				rth->dst.output = ip_mc_output;  in __mkroute_output()
2058 	rt_set_nexthop(rth, fl4->daddr, res, fnhe, fi, type, 0);  in __mkroute_output()
2060 	return rth;  in __mkroute_output()
2073 	struct rtable *rth;  in __ip_route_output_key()  local
2089 		rth = ERR_PTR(-EINVAL);  in __ip_route_output_key()
2140 		rth = ERR_PTR(-ENODEV);  in __ip_route_output_key()
2146 			rth = ERR_PTR(-ENETUNREACH);  in __ip_route_output_key()
2205 		rth = ERR_PTR(-ENETUNREACH);  in __ip_route_output_key()
2240 	rth = __mkroute_output(&res, fl4, orig_oif, dev_out, flags);  in __ip_route_output_key()
2244 	return rth;  in __ip_route_output_key()