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/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
index e1a5f03..cce2ada 100644
--- a/drivers/net/tulip/tulip_core.c
+++ b/drivers/net/tulip/tulip_core.c
@@ -997,7 +997,7 @@
 	memset(hash_table, 0, sizeof(hash_table));
 	set_bit_le(255, hash_table); 			/* Broadcast entry */
 	/* This should work on big-endian machines as well. */
-	for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+	for (i = 0, mclist = dev->mc_list; mclist && i < netdev_mc_count(dev);
 	     i++, mclist = mclist->next) {
 		int index = ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x1ff;
 
@@ -1026,7 +1026,7 @@
 
 	/* We have <= 14 addresses so we can use the wonderful
 	   16 address perfect filtering of the Tulip. */
-	for (i = 0, mclist = dev->mc_list; i < dev->mc_count;
+	for (i = 0, mclist = dev->mc_list; i < netdev_mc_count(dev);
 	     i++, mclist = mclist->next) {
 		eaddrs = (u16 *)mclist->dmi_addr;
 		*setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
@@ -1057,7 +1057,8 @@
 	if (dev->flags & IFF_PROMISC) {			/* Set promiscuous. */
 		tp->csr6 |= AcceptAllMulticast | AcceptAllPhys;
 		csr6 |= AcceptAllMulticast | AcceptAllPhys;
-	} else if ((dev->mc_count > 1000)  ||  (dev->flags & IFF_ALLMULTI)) {
+	} else if ((netdev_mc_count(dev) > 1000) ||
+		   (dev->flags & IFF_ALLMULTI)) {
 		/* Too many to filter well -- accept all multicasts. */
 		tp->csr6 |= AcceptAllMulticast;
 		csr6 |= AcceptAllMulticast;
@@ -1066,14 +1067,16 @@
 		/* Should verify correctness on big-endian/__powerpc__ */
 		struct dev_mc_list *mclist;
 		int i;
-		if (dev->mc_count > 64) {		/* Arbitrary non-effective limit. */
+		if (netdev_mc_count(dev) > 64) {
+			/* Arbitrary non-effective limit. */
 			tp->csr6 |= AcceptAllMulticast;
 			csr6 |= AcceptAllMulticast;
 		} else {
 			u32 mc_filter[2] = {0, 0};		 /* Multicast hash filter */
 			int filterbit;
-			for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
-				 i++, mclist = mclist->next) {
+			for (i = 0, mclist = dev->mc_list;
+			     mclist && i < netdev_mc_count(dev);
+			     i++, mclist = mclist->next) {
 				if (tp->flags & COMET_MAC_ADDR)
 					filterbit = ether_crc_le(ETH_ALEN, mclist->dmi_addr);
 				else
@@ -1107,7 +1110,8 @@
 
 		/* Note that only the low-address shortword of setup_frame is valid!
 		   The values are doubled for big-endian architectures. */
-		if (dev->mc_count > 14) { /* Must use a multicast hash table. */
+		if (netdev_mc_count(dev) > 14) {
+			/* Must use a multicast hash table. */
 			build_setup_frame_hash(tp->setup_frame, dev);
 			tx_flags = 0x08400000 | 192;
 		} else {