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-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/l2t.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
index 81e8402a74b4..8a96572fdde0 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/l2t.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
@@ -154,7 +154,7 @@ static int write_l2e(struct adapter *adap, struct l2t_entry *e, int sync)
req->params = htons(L2T_W_PORT(e->lport) | L2T_W_NOREPLY(!sync));
req->l2t_idx = htons(e->idx);
req->vlan = htons(e->vlan);
- if (e->neigh)
+ if (e->neigh && !(e->neigh->dev->flags & IFF_LOOPBACK))
memcpy(e->dmac, e->neigh->ha, sizeof(e->dmac));
memcpy(req->dst_mac, e->dmac, sizeof(req->dst_mac));
@@ -394,6 +394,8 @@ struct l2t_entry *cxgb4_l2t_get(struct l2t_data *d, struct neighbour *neigh,
if (e) {
spin_lock(&e->lock); /* avoid race with t4_l2t_free */
e->state = L2T_STATE_RESOLVING;
+ if (neigh->dev->flags & IFF_LOOPBACK)
+ memcpy(e->dmac, physdev->dev_addr, sizeof(e->dmac));
memcpy(e->addr, addr, addr_len);
e->ifindex = ifidx;
e->hash = hash;