sfc: Use ether_addr_copy and eth_broadcast_addr

Faster than memcpy/memset on some architectures.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/sfc/mcdi_port.c b/drivers/net/ethernet/sfc/mcdi_port.c
index 91d2325..e5fc4e1 100644
--- a/drivers/net/ethernet/sfc/mcdi_port.c
+++ b/drivers/net/ethernet/sfc/mcdi_port.c
@@ -854,8 +854,8 @@
 
 	BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0);
 
-	memcpy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR),
-	       efx->net_dev->dev_addr, ETH_ALEN);
+	ether_addr_copy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR),
+			efx->net_dev->dev_addr);
 
 	MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU,
 			EFX_MAX_FRAME_LEN(efx->net_dev->mtu));