ipv4: Create and use route lookup helpers.

The idea here is this minimizes the number of places one has to edit
in order to make changes to how flows are defined and used.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 11 deletions

diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index 271a1f00c224..65832951fe07 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -3407,20 +3407,14 @@ static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
                              struct dst_entry **dst)
 {
 #if defined(CONFIG_INET)
-        struct flowi fl;
-        int err;
         struct rtable *rt;
 
-        memset(&fl, 0, sizeof(fl));
-        fl.nl_u.ip4_u.daddr = dst_addr->sin_addr.s_addr;
-
-        rt = ip_route_output_key(&init_net, &fl);
-        err = 0;
-        if (!IS_ERR(rt))
+        rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
+        if (!IS_ERR(rt)) {
                 *dst = &rt->dst;
-        else
-                err = PTR_ERR(rt);
-        return err;
+                return 0;
+        }
+        return PTR_ERR(rt);
 #else
         return -ENETUNREACH;
 #endif