[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/hp.c b/drivers/net/hp.c
index 1f11126..c649a80 100644
--- a/drivers/net/hp.c
+++ b/drivers/net/hp.c
@@ -127,6 +127,7 @@
 	int i, retval, board_id, wordmode;
 	const char *name;
 	static unsigned version_printed;
+	DECLARE_MAC_BUF(mac);
 
 	if (!request_region(ioaddr, HP_IO_EXTENT, DRV_NAME))
 		return -EBUSY;
@@ -158,7 +159,9 @@
 	printk("%s: %s (ID %02x) at %#3x,", dev->name, name, board_id, ioaddr);
 
 	for(i = 0; i < ETHER_ADDR_LEN; i++)
-		printk(" %2.2x", dev->dev_addr[i] = inb(ioaddr + i));
+		dev->dev_addr[i] = inb(ioaddr + i);
+
+	printk(" %s", print_mac(mac, dev->dev_addr));
 
 	/* Snarf the interrupt now.  Someday this could be moved to open(). */
 	if (dev->irq < 2) {