net: convert unicast addr list

This patch converts unicast address list to standard list_head using
previously introduced struct netdev_hw_addr. It also relaxes the
locking. Original spinlock (still used for multicast addresses) is not
needed and is no longer used for a protection of this list. All
reading and writing takes place under rtnl (with no changes).

I also removed a possibility to specify the length of the address
while adding or deleting unicast address. It's always dev->addr_len.

The convertion touched especially e1000 and ixgbe codes when the
change is not so trivial.

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

 drivers/net/bnx2.c               |   13 +--
 drivers/net/e1000/e1000_main.c   |   24 +++--
 drivers/net/ixgbe/ixgbe_common.c |   14 ++--
 drivers/net/ixgbe/ixgbe_common.h |    4 +-
 drivers/net/ixgbe/ixgbe_main.c   |    6 +-
 drivers/net/ixgbe/ixgbe_type.h   |    4 +-
 drivers/net/macvlan.c            |   11 +-
 drivers/net/mv643xx_eth.c        |   11 +-
 drivers/net/niu.c                |    7 +-
 drivers/net/virtio_net.c         |    7 +-
 drivers/s390/net/qeth_l2_main.c  |    6 +-
 drivers/scsi/fcoe/fcoe.c         |   16 ++--
 include/linux/netdevice.h        |   18 ++--
 net/8021q/vlan.c                 |    4 +-
 net/8021q/vlan_dev.c             |   10 +-
 net/core/dev.c                   |  195 +++++++++++++++++++++++++++-----------
 net/dsa/slave.c                  |   10 +-
 net/packet/af_packet.c           |    4 +-
 18 files changed, 227 insertions(+), 137 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index edac3a0..fa61a12 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -22,6 +22,7 @@
 #include <linux/log2.h>
 #include <linux/jiffies.h>
 #include <linux/crc32.h>
+#include <linux/list.h>
 
 #include <linux/io.h>
 
@@ -6362,6 +6363,7 @@
 	struct niu *np = netdev_priv(dev);
 	int i, alt_cnt, err;
 	struct dev_addr_list *addr;
+	struct netdev_hw_addr *ha;
 	unsigned long flags;
 	u16 hash[16] = { 0, };
 
@@ -6383,9 +6385,8 @@
 	if (alt_cnt) {
 		int index = 0;
 
-		for (addr = dev->uc_list; addr; addr = addr->next) {
-			err = niu_set_alt_mac(np, index,
-					      addr->da_addr);
+		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 "
 				       "adding alt mac %d\n",