bonding: use compare_ether_addr_64bits() in ALB

We can speedup ether addresses compares using compare_ether_addr_64bits()
instead of memcmp(). We make sure all operands are at least 8 bytes long and
16bits aligned (or better, long word aligned if possible)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 6290a50..6824771 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -163,9 +163,9 @@
 	u32    original_flags;
 	u32    original_mtu;
 	u32    link_failure_count;
+	u8     perm_hwaddr[ETH_ALEN];
 	u16    speed;
 	u8     duplex;
-	u8     perm_hwaddr[ETH_ALEN];
 	struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */
 	struct tlb_slave_info tlb_info;
 };