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/net/appletalk/aarp.c b/net/appletalk/aarp.c
index b25c1e9..b03ff58 100644
--- a/net/appletalk/aarp.c
+++ b/net/appletalk/aarp.c
@@ -995,7 +995,6 @@
 	struct aarp_iter_state *iter = seq->private;
 	struct aarp_entry *entry = v;
 	unsigned long now = jiffies;
-	DECLARE_MAC_BUF(mac);
 
 	if (v == SEQ_START_TOKEN)
 		seq_puts(seq,
@@ -1006,7 +1005,7 @@
 			   ntohs(entry->target_addr.s_net),
 			   (unsigned int) entry->target_addr.s_node,
 			   entry->dev ? entry->dev->name : "????");
-		seq_printf(seq, "%s", print_mac(mac, entry->hwaddr));
+		seq_printf(seq, "%pM", entry->hwaddr);
 		seq_printf(seq, " %8s",
 			   dt2str((long)entry->expires_at - (long)now));
 		if (iter->table == unresolved)