[PATCH] [IPoIB] Handle sending of unicast RARP responses

RARP replies are another valid case where IPoIB may need to send a
unicast packet with no neighbour structure.

Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 6f60abbaebd5..fa00816a3cf7 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -600,9 +600,10 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
                         ipoib_mcast_send(dev, (union ib_gid *) (phdr->hwaddr + 4), skb);
                 } else {
-                        /* unicast GID -- should be ARP reply */
+                        /* unicast GID -- should be ARP or RARP reply */
 
-                        if (be16_to_cpup((u16 *) skb->data) != ETH_P_ARP) {
+                        if ((be16_to_cpup((__be16 *) skb->data) != ETH_P_ARP) &&
+                            (be16_to_cpup((__be16 *) skb->data) != ETH_P_RARP)) {
                                 ipoib_warn(priv, "Unicast, no %s: type %04x, QPN %06x "
                                            IPOIB_GID_FMT "\n",
                                            skb->dst ? "neigh" : "dst",