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/pcnet32.c b/drivers/net/pcnet32.c
index 0dc7ff8..3522794 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -2698,7 +2698,7 @@
 	ib->filter[1] = 0;
 
 	/* Add addresses */
-	for (i = 0; i < dev->mc_count; i++) {
+	for (i = 0; i < netdev_mc_count(dev); i++) {
 		addrs = dmi->dmi_addr;
 		dmi = dmi->next;