net: convert print_mac to %pM

This converts pretty much everything to print_mac. There were
a few things that had conflicts which I have just dropped for
now, no harm done.

I've built an allyesconfig with this and looked at the files
that weren't built very carefully, but it's a huge patch.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index fc6f4b8..ff8fe23 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -958,7 +958,6 @@
 {
 	struct pppox_sock *po;
 	char *dev_name;
-	DECLARE_MAC_BUF(mac);
 
 	if (v == SEQ_START_TOKEN) {
 		seq_puts(seq, "Id       Address              Device\n");
@@ -968,8 +967,8 @@
 	po = v;
 	dev_name = po->pppoe_pa.dev;
 
-	seq_printf(seq, "%08X %s %8s\n",
-		   po->pppoe_pa.sid, print_mac(mac, po->pppoe_pa.remote), dev_name);
+	seq_printf(seq, "%08X %pM %8s\n",
+		   po->pppoe_pa.sid, po->pppoe_pa.remote, dev_name);
 out:
 	return 0;
 }