net: Replace calls to vrf_dev_get_rth

Replace calls to vrf_dev_get_rth with l3mdev_get_rtable.
The check on the flow flags is handled in the l3mdev operation.
Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/vrf.h

@@ -32,26 +32,4 @@ struct net_vrf {
 	u32			tb_id;
 };
 
-
-#if IS_ENABLED(CONFIG_NET_VRF)
-/* caller has already checked netif_is_l3_master(dev) */
-static inline struct rtable *vrf_dev_get_rth(const struct net_device *dev)
-{
-	struct rtable *rth = ERR_PTR(-ENETUNREACH);
-	struct net_vrf *vrf = netdev_priv(dev);
-
-	if (vrf) {
-		rth = vrf->rth;
-		atomic_inc(&rth->dst.__refcnt);
-	}
-	return rth;
-}
-
-#else
-static inline struct rtable *vrf_dev_get_rth(const struct net_device *dev)
-{
-	return ERR_PTR(-ENETUNREACH);
-}
-#endif
-
 #endif /* __LINUX_NET_VRF_H */

net/ipv4/route.c

@@ -112,7 +112,6 @@
 #endif
 #include <net/secure_seq.h>
 #include <net/ip_tunnels.h>
-#include <net/vrf.h>
 #include <net/l3mdev.h>
 
 #define RT_FL_TOS(oldflp4) \
@@ -2125,12 +2124,11 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
 				fl4->saddr = inet_select_addr(dev_out, 0,
 							      RT_SCOPE_HOST);
 		}
-		if (netif_is_l3_master(dev_out) &&
-		    !(fl4->flowi4_flags & FLOWI_FLAG_VRFSRC)) {
-			rth = vrf_dev_get_rth(dev_out);
+
+		rth = l3mdev_get_rtable(dev_out, fl4);
+		if (rth)
 			goto out;
 	}
-	}
 
 	if (!fl4->daddr) {
 		fl4->daddr = fl4->saddr;