net: group address list and its count

This patch is inspired by patch recently posted by Johannes Berg. Basically what
my patch does is to group list and a count of addresses into newly introduced
structure netdev_hw_addr_list. This brings us two benefits:
1) struct net_device becames a bit nicer.
2) in the future there will be a possibility to operate with lists independently
   on netdevices (with exporting right functions).
I wanted to introduce this patch before I'll post a multicast lists conversion.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>

 drivers/net/bnx2.c              |    4 +-
 drivers/net/e1000/e1000_main.c  |    4 +-
 drivers/net/ixgbe/ixgbe_main.c  |    6 +-
 drivers/net/mv643xx_eth.c       |    2 +-
 drivers/net/niu.c               |    4 +-
 drivers/net/virtio_net.c        |   10 ++--
 drivers/s390/net/qeth_l2_main.c |    2 +-
 include/linux/netdevice.h       |   17 +++--
 net/core/dev.c                  |  130 ++++++++++++++++++--------------------
 9 files changed, 89 insertions(+), 90 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index fa61a12..d2146d4 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -6376,7 +6376,7 @@
 	if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 0))
 		np->flags |= NIU_FLAGS_MCAST;
 
-	alt_cnt = dev->uc_count;
+	alt_cnt = dev->uc.count;
 	if (alt_cnt > niu_num_alt_addr(np)) {
 		alt_cnt = 0;
 		np->flags |= NIU_FLAGS_PROMISC;
@@ -6385,7 +6385,7 @@
 	if (alt_cnt) {
 		int index = 0;
 
-		list_for_each_entry(ha, &dev->uc_list, list) {
+		list_for_each_entry(ha, &dev->uc.list, list) {
 			err = niu_set_alt_mac(np, index, ha->addr);
 			if (err)
 				printk(KERN_WARNING PFX "%s: Error %d "