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/ariadne.c b/drivers/net/ariadne.c
index e2c2024..08d8be4 100644
--- a/drivers/net/ariadne.c
+++ b/drivers/net/ariadne.c
@@ -819,7 +819,7 @@
 	lance->RDP = PROM;		/* 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. */
 	memset(multicast_table, (num_addrs == 0) ? 0 : -1,