[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/8139cp.c b/drivers/net/8139cp.c
index 58fad1b..7edd50c 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -1823,6 +1823,7 @@
 	void __iomem *regs;
 	resource_size_t pciaddr;
 	unsigned int addr_len, i, pci_using_dac;
+	DECLARE_MAC_BUF(mac);
 
 #ifndef MODULE
 	static int version_printed;
@@ -1964,13 +1965,10 @@
 		goto err_out_iomap;
 
 	printk (KERN_INFO "%s: RTL-8139C+ at 0x%lx, "
-		"%02x:%02x:%02x:%02x:%02x:%02x, "
-		"IRQ %d\n",
+		"%s, IRQ %d\n",
 		dev->name,
 		dev->base_addr,
-		dev->dev_addr[0], dev->dev_addr[1],
-		dev->dev_addr[2], dev->dev_addr[3],
-		dev->dev_addr[4], dev->dev_addr[5],
+		print_mac(mac, dev->dev_addr),
 		dev->irq);
 
 	pci_set_drvdata(pdev, dev);