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/sc92031.c b/drivers/net/sc92031.c
index fd8cb50..00ff899 100644
--- a/drivers/net/sc92031.c
+++ b/drivers/net/sc92031.c
@@ -429,7 +429,7 @@
 	u32 mar0 = 0, mar1 = 0;
 
 	if ((dev->flags & IFF_PROMISC) ||
-	    dev->mc_count > multicast_filter_limit ||
+	    netdev_mc_count(dev) > multicast_filter_limit ||
 	    (dev->flags & IFF_ALLMULTI))
 		mar0 = mar1 = 0xffffffff;
 	else if (dev->flags & IFF_MULTICAST) {