be2net: ignore mac-addr set call for an already programmed mac-addr

An ndo_set_mac_addr() call may be issued for a mac-addr that is already
active on an interface. If so, silently ignore the request. Sending such
a request to the FW, causes a "mac collision" error. The error is harmless
but is avoidable noise in the kernel log.

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 0710f9a84de3..ce589b43bd51 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -258,6 +258,12 @@ static int be_mac_addr_set(struct net_device *netdev, void *p)
         if (!is_valid_ether_addr(addr->sa_data))
                 return -EADDRNOTAVAIL;
 
+        /* Proceed further only if, User provided MAC is different
+         * from active MAC
+         */
+        if (ether_addr_equal(addr->sa_data, netdev->dev_addr))
+                return 0;
+
         /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
          * privilege or if PF did not provision the new MAC address.
          * On BE3, this cmd will always fail if the VF doesn't have the