[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/e100.c b/drivers/net/e100.c
index 9912656..720994b 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -2548,6 +2548,7 @@
 	struct net_device *netdev;
 	struct nic *nic;
 	int err;
+	DECLARE_MAC_BUF(mac);
 
 	if(!(netdev = alloc_etherdev(sizeof(struct nic)))) {
 		if(((1 << debug) - 1) & NETIF_MSG_PROBE)
@@ -2679,11 +2680,9 @@
 		goto err_out_free;
 	}
 
-	DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, "
-		"MAC addr %02X:%02X:%02X:%02X:%02X:%02X\n",
-		(unsigned long long)pci_resource_start(pdev, use_io ? 1 : 0), pdev->irq,
-		netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2],
-		netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]);
+	DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, MAC addr %s\n",
+		(unsigned long long)pci_resource_start(pdev, use_io ? 1 : 0),
+		pdev->irq, print_mac(mac, netdev->dev_addr));
 
 	return 0;