net/mlx4_en: current_mac isn't updated in port up

When port is down dev_addr is changed (e.g. by bonding) but current_mac
is not touched. When port is up again, hash_mac is updated to dev_addr,
but current_mac isn't. This leads to inconsistency between current_mac
and mac_hash. Because of that, mlx4_en_replace_mac() fails to find
current_mac in mac_hash.

Fix is to reset current_mac to dev_addr when port is up - as we do for
mac_hash.

Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 887cf01..82708bd 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -644,6 +644,7 @@ static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
                goto alloc_err;
        }
        memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
+       memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac));
        entry->reg_id = reg_id;
 
        hlist_add_head_rcu(&entry->hlist,