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/pcmcia/3c574_cs.c b/drivers/net/pcmcia/3c574_cs.c
index 98938ea..3d1d3a7 100644
--- a/drivers/net/pcmcia/3c574_cs.c
+++ b/drivers/net/pcmcia/3c574_cs.c
@@ -1148,7 +1148,7 @@
 	if (dev->flags & IFF_PROMISC)
 		outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
 			 ioaddr + EL3_CMD);
-	else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
+	else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
 		outw(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
 	else
 		outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);