net: ethtool: ts: Update GET_TS to reply the current selected timestamp

As the default selected timestamp API change we have to change also the
timestamp return by ethtool. This patch return now the current selected
timestamp.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ethtool/ts.c

@@ -31,29 +31,13 @@ static int ts_prepare_data(const struct ethnl_req_info *req_base,
 {
 	struct ts_reply_data *data = TS_REPDATA(reply_base);
 	struct net_device *dev = reply_base->dev;
-	const struct ethtool_ops *ops = dev->ethtool_ops;
 	int ret;
 
 	ret = ethnl_ops_begin(dev);
 	if (ret < 0)
 		return ret;
 
-	if (phy_has_tsinfo(dev->phydev)) {
-		data->ts_layer = PHY_TIMESTAMPING;
-	} else if (ops->get_ts_info) {
-		struct ethtool_ts_info ts_info = {0};
-
-		ops->get_ts_info(dev, &ts_info);
-		if (ts_info.so_timestamping &
-		    SOF_TIMESTAMPING_HARDWARE_MASK)
-			data->ts_layer = MAC_TIMESTAMPING;
-
-		if (ts_info.so_timestamping &
-		    SOF_TIMESTAMPING_SOFTWARE_MASK)
-			data->ts_layer = SOFTWARE_TIMESTAMPING;
-	} else {
-		data->ts_layer = NO_TIMESTAMPING;
-	}
+	data->ts_layer = dev->ts_layer;
 
 	ethnl_ops_complete(dev);