be2net: ignore VF mac address setting for the same mac

ndo_set_vf_mac() call may be issued for a mac-addr that is already
active on a VF. If so, silently ignore the request.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index da4d3863bd18..db4ff14ff18f 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1270,6 +1270,12 @@ static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
         if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
                 return -EINVAL;
 
+        /* Proceed further only if user provided MAC is different
+         * from active MAC
+         */
+        if (ether_addr_equal(mac, vf_cfg->mac_addr))
+                return 0;
+
         if (BEx_chip(adapter)) {
                 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
                                 vf + 1);