qlcnic: Fix setting MAC address

o Delete previous unicast MAC which is already programmed
  in adapter before setting new unicast MAC

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 264d5a4..04037b5 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -308,6 +308,23 @@ int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
        return 0;
 }
 
+static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
+{
+       struct qlcnic_mac_list_s *cur;
+       struct list_head *head;
+
+       list_for_each(head, &adapter->mac_list) {
+               cur = list_entry(head, struct qlcnic_mac_list_s, list);
+               if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
+                       qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
+                                                 0, QLCNIC_MAC_DEL);
+                       list_del(&cur->list);
+                       kfree(cur);
+                       return;
+               }
+       }
+}
+
 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 {
        struct qlcnic_adapter *adapter = netdev_priv(netdev);
@@ -322,11 +339,15 @@ static int qlcnic_set_mac(struct net_device *netdev, void *p)
        if (!is_valid_ether_addr(addr->sa_data))
                return -EINVAL;
 
+       if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
+               return 0;
+
        if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
                netif_device_detach(netdev);
                qlcnic_napi_disable(adapter);
        }
 
+       qlcnic_delete_adapter_mac(adapter);
        memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
        memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
        qlcnic_set_multi(adapter->netdev);