[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/3c503.c b/drivers/net/3c503.c
index f9e7ffb..9c23336 100644
--- a/drivers/net/3c503.c
+++ b/drivers/net/3c503.c
@@ -177,6 +177,7 @@
     int i, iobase_reg, membase_reg, saved_406, wordlength, retval;
     static unsigned version_printed;
     unsigned long vendor_id;
+    DECLARE_MAC_BUF(mac);
 
     if (!request_region(ioaddr, EL2_IO_EXTENT, DRV_NAME))
 	return -EBUSY;
@@ -226,7 +227,8 @@
 
     /* Retrieve and print the ethernet address. */
     for (i = 0; i < 6; 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));
 
     /* Map the 8390 back into the window. */
     outb(ECNTRL_THIN, ioaddr + 0x406);