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/tokenring/ibmtr.c b/drivers/net/tokenring/ibmtr.c
index 66272f2..1ce8f85 100644
--- a/drivers/net/tokenring/ibmtr.c
+++ b/drivers/net/tokenring/ibmtr.c
@@ -996,7 +996,7 @@
 	if (/*BMSHELPdev->start == 0 ||*/ ti->open_status != OPEN) return;
 	address[0] = address[1] = address[2] = address[3] = 0;
 	mclist = dev->mc_list;
-	for (i = 0; i < dev->mc_count; i++) {
+	for (i = 0; i < netdev_mc_count(dev); i++) {
 		address[0] |= mclist->dmi_addr[2];
 		address[1] |= mclist->dmi_addr[3];
 		address[2] |= mclist->dmi_addr[4];