bnx2x: Avoid using zero MAC

Prevent bnx2x devices which are used mainly for storage from using zero
MAC addresses as their primary MAC address.
Signed-off-by: NYuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: NAriel Elior <ariele@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c

@@ -10832,14 +10832,12 @@ static void bnx2x_get_cnic_mac_hwinfo(struct bnx2x *bp)
 			}
 		}
 
-		if (IS_MF_STORAGE_SD(bp))
-			/* Zero primary MAC configuration */
-			memset(bp->dev->dev_addr, 0, ETH_ALEN);
-
-		if (IS_MF_FCOE_AFEX(bp) || IS_MF_FCOE_SD(bp))
-			/* use FIP MAC as primary MAC */
+		/* If this is a storage-only interface, use SAN mac as
+		 * primary MAC. Notice that for SD this is already the case,
+		 * as the SAN mac was copied from the primary MAC.
+		 */
+		if (IS_MF_FCOE_AFEX(bp))
 			memcpy(bp->dev->dev_addr, fip_mac, ETH_ALEN);
-
 	} else {
 		val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].
 				iscsi_mac_upper);