[NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()

This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 0636883..2289734 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -1276,16 +1276,13 @@
 	struct ibmveth_adapter *adapter = seq->private;
 	char *current_mac = ((char*) &adapter->netdev->dev_addr);
 	char *firmware_mac = ((char*) &adapter->mac_addr) ;
+	DECLARE_MAC_BUF(mac);
 
 	seq_printf(seq, "%s %s\n\n", ibmveth_driver_string, ibmveth_driver_version);
 
 	seq_printf(seq, "Unit Address:    0x%x\n", adapter->vdev->unit_address);
-	seq_printf(seq, "Current MAC:     %02X:%02X:%02X:%02X:%02X:%02X\n",
-		   current_mac[0], current_mac[1], current_mac[2],
-		   current_mac[3], current_mac[4], current_mac[5]);
-	seq_printf(seq, "Firmware MAC:    %02X:%02X:%02X:%02X:%02X:%02X\n",
-		   firmware_mac[0], firmware_mac[1], firmware_mac[2],
-		   firmware_mac[3], firmware_mac[4], firmware_mac[5]);
+	seq_printf(seq, "Current MAC:     %s\n", print_mac(mac, current_mac));
+	seq_printf(seq, "Firmware MAC:    %s\n", print_mac(mac, firmware_mac));
 
 	seq_printf(seq, "\nAdapter Statistics:\n");
 	seq_printf(seq, "  TX:  vio_map_single failres:      %ld\n", adapter->tx_map_failed);