[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/natsemi.c b/drivers/net/natsemi.c
index 5ee4e87..ea38da6 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -805,6 +805,7 @@
 	const int pcibar = 1; /* PCI base address register */
 	int prev_eedata;
 	u32 tmp;
+	DECLARE_MAC_BUF(mac);
 
 /* when built into the kernel, we only print version if device is found */
 #ifndef MODULE
@@ -958,12 +959,10 @@
 		goto err_create_file;
 
 	if (netif_msg_drv(np)) {
-		printk(KERN_INFO "natsemi %s: %s at %#08lx (%s), ",
-			dev->name, natsemi_pci_info[chip_idx].name, iostart,
-			pci_name(np->pci_dev));
-		for (i = 0; i < ETH_ALEN-1; i++)
-				printk("%02x:", dev->dev_addr[i]);
-		printk("%02x, IRQ %d", dev->dev_addr[i], irq);
+		printk(KERN_INFO "natsemi %s: %s at %#08lx "
+		       "(%s), %s, IRQ %d",
+		       dev->name, natsemi_pci_info[chip_idx].name, iostart,
+		       pci_name(np->pci_dev), print_mac(mac, dev->dev_addr), irq);
 		if (dev->if_port == PORT_TP)
 			printk(", port TP.\n");
 		else if (np->ignore_phy)