net: mvneta: use ethtool_puts

Allows simplifying get_strings and avoids manual pointer manipulation.

Tested on Turris Omnia.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Link: https://patch.msgid.link/20241011195955.7065-1-rosenp@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/marvell/mvneta.c

@@ -4795,11 +4795,9 @@ static void mvneta_ethtool_get_strings(struct net_device *netdev, u32 sset,
 		int i;
 
 		for (i = 0; i < ARRAY_SIZE(mvneta_statistics); i++)
-			memcpy(data + i * ETH_GSTRING_LEN,
-			       mvneta_statistics[i].name, ETH_GSTRING_LEN);
+			ethtool_puts(&data, mvneta_statistics[i].name);
 
 		if (!pp->bm_priv) {
-			data += ETH_GSTRING_LEN * ARRAY_SIZE(mvneta_statistics);
 			page_pool_ethtool_stats_get_strings(data);
 		}
 	}