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/atarilance.c b/drivers/net/atarilance.c
index cc9ed86..280cfff 100644
--- a/drivers/net/atarilance.c
+++ b/drivers/net/atarilance.c
@@ -1097,7 +1097,7 @@
 		REGA( CSR15 ) = 0x8000; /* Set promiscuous mode */
 	} else {
 		short multicast_table[4];
-		int num_addrs = dev->mc_count;
+		int num_addrs = netdev_mc_count(dev);
 		int i;
 		/* We don't use the multicast table, but rely on upper-layer
 		 * filtering. */