net: use helpers to access uc list V2

This patch introduces three macros to work with uc list from net drivers.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index c3258b0..51fde6f 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -622,7 +622,7 @@
 	for (dm = dev->mc_list; dm; dm = dm->next)
 		qeth_l2_add_mc(card, dm->da_addr, 0);
 
-	list_for_each_entry(ha, &dev->uc.list, list)
+	netdev_for_each_uc_addr(ha, dev)
 		qeth_l2_add_mc(card, ha->addr, 1);
 
 	spin_unlock_bh(&card->mclock);