net: copy_rtnl_link_stats64() simplification

No need to use a temporary struct rtnl_link_stats64 variable,
just copy the source to skb buffer.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/rtnetlink.c

@@ -612,36 +612,7 @@ static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
 
 static void copy_rtnl_link_stats64(void *v, const struct rtnl_link_stats64 *b)
 {
-	struct rtnl_link_stats64 a;
-
-	a.rx_packets = b->rx_packets;
-	a.tx_packets = b->tx_packets;
-	a.rx_bytes = b->rx_bytes;
-	a.tx_bytes = b->tx_bytes;
-	a.rx_errors = b->rx_errors;
-	a.tx_errors = b->tx_errors;
-	a.rx_dropped = b->rx_dropped;
-	a.tx_dropped = b->tx_dropped;
-
-	a.multicast = b->multicast;
-	a.collisions = b->collisions;
-
-	a.rx_length_errors = b->rx_length_errors;
-	a.rx_over_errors = b->rx_over_errors;
-	a.rx_crc_errors = b->rx_crc_errors;
-	a.rx_frame_errors = b->rx_frame_errors;
-	a.rx_fifo_errors = b->rx_fifo_errors;
-	a.rx_missed_errors = b->rx_missed_errors;
-
-	a.tx_aborted_errors = b->tx_aborted_errors;
-	a.tx_carrier_errors = b->tx_carrier_errors;
-	a.tx_fifo_errors = b->tx_fifo_errors;
-	a.tx_heartbeat_errors = b->tx_heartbeat_errors;
-	a.tx_window_errors = b->tx_window_errors;
-
-	a.rx_compressed = b->rx_compressed;
-	a.tx_compressed = b->tx_compressed;
-	memcpy(v, &a, sizeof(a));
+	memcpy(v, b, sizeof(*b));
 }
 
 /* All VF info */