net: use netdev_mc_count and netdev_mc_empty when appropriate

This patch replaces dev->mc_count in all drivers (hopefully I didn't miss
anything). Used spatch and did small tweaks and conding style changes when
it was suitable.

Jirka

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c
index 0c76859..c19dd4a 100644
--- a/drivers/net/ps3_gelic_net.c
+++ b/drivers/net/ps3_gelic_net.c
@@ -568,7 +568,7 @@
 			status);
 
 	if ((netdev->flags & IFF_ALLMULTI) ||
-	    (netdev->mc_count > GELIC_NET_MC_COUNT_MAX)) {
+	    (netdev_mc_count(netdev) > GELIC_NET_MC_COUNT_MAX)) {
 		status = lv1_net_add_multicast_address(bus_id(card),
 						       dev_id(card),
 						       0, 1);