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/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c
index 322e11d..091e0b00 100644
--- a/drivers/net/pcmcia/3c589_cs.c
+++ b/drivers/net/pcmcia/3c589_cs.c
@@ -886,7 +886,7 @@
 
     if (dev->flags & IFF_PROMISC)
 	opts |= RxMulticast | RxProm;
-    else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
+    else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
 	opts |= RxMulticast;
     outw(opts, ioaddr + EL3_CMD);
 }