infiniband: cxgb4: Convert import_ep() over to dst_neigh_lookup().

Now we must provide the IP destination address, and a reference has
to be dropped when we're done with the entry.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 0668bb3472d0..0cf61554f176 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -1562,11 +1562,11 @@ static int import_ep(struct c4iw_ep *ep, __be32 peer_ip, struct dst_entry *dst,
         struct neighbour *n;
         int err, step;
 
-        rcu_read_lock();
-        n = dst_get_neighbour_noref(dst);
-        err = -ENODEV;
+        n = dst_neigh_lookup(dst, &peer_ip);
         if (!n)
-                goto out;
+                return -ENODEV;
+
+        rcu_read_lock();
         err = -ENOMEM;
         if (n->dev->flags & IFF_LOOPBACK) {
                 struct net_device *pdev;
@@ -1614,6 +1614,8 @@ static int import_ep(struct c4iw_ep *ep, __be32 peer_ip, struct dst_entry *dst,
 out:
         rcu_read_unlock();
 
+        neigh_release(n);
+
         return err;
 }