bridge: Use ether_addr_copy and ETH_ALEN

Convert the more obvious uses of memcpy to ether_addr_copy.

There are still uses of memcpy that could be converted but
these addresses are __aligned(2).

Convert a couple uses of 6 in gr_private.h to ETH_ALEN.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index ef66365..c97c3c8 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -363,7 +363,7 @@
 	skb_reset_mac_header(skb);
 	eth = eth_hdr(skb);
 
-	memcpy(eth->h_source, br->dev->dev_addr, ETH_ALEN);
+	ether_addr_copy(eth->h_source, br->dev->dev_addr);
 	eth->h_dest[0] = 1;
 	eth->h_dest[1] = 0;
 	eth->h_dest[2] = 0x5e;
@@ -433,7 +433,7 @@
 	skb_reset_mac_header(skb);
 	eth = eth_hdr(skb);
 
-	memcpy(eth->h_source, br->dev->dev_addr, ETH_ALEN);
+	ether_addr_copy(eth->h_source, br->dev->dev_addr);
 	eth->h_proto = htons(ETH_P_IPV6);
 	skb_put(skb, sizeof(*eth));