infiniband: nes: Convert nes_addr_resolve_neigh() 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>

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 425065b..fc5192e 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1348,8 +1348,9 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
        else
                netdev = nesvnic->netdev;
 
+       neigh = dst_neigh_lookup(&rt->dst, &dst_ip);
+
        rcu_read_lock();
-       neigh = dst_get_neighbour_noref(&rt->dst);
        if (neigh) {
                if (neigh->nud_state & NUD_VALID) {
                        nes_debug(NES_DBG_CM, "Neighbor MAC address for 0x%08X"
@@ -1360,8 +1361,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
                                if (!memcmp(nesadapter->arp_table[arpindex].mac_addr,
                                            neigh->ha, ETH_ALEN)) {
                                        /* Mac address same as in nes_arp_table */
-                                       ip_rt_put(rt);
-                                       return rc;
+                                       goto out;
                                }
 
                                nes_manage_arp_cache(nesvnic->netdev,
@@ -1377,7 +1377,12 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
                        neigh_event_send(neigh, NULL);
                }
        }
+out:
        rcu_read_unlock();
+
+       if (neigh)
+               neigh_release(neigh);
+
        ip_rt_put(rt);
        return rc;
 }