+static netdev_features_t hns_nic_fix_features(
+		struct net_device *netdev, netdev_features_t features) {
+	struct hns_nic_priv *priv = netdev_priv(netdev);
+
+	switch (priv->enet_ver) {
+	case AE_VERSION_1:
+		features &= ~(NETIF_F_TSO | NETIF_F_TSO6 |
+				NETIF_F_HW_VLAN_CTAG_FILTER);
+		break;
+	default:
+		break;
+	}
+	return features;
+}
+

Isn't AE_VERSION_1 something fixed once you publish your features?
If it can't be changed, why not simply remove the features from
`hw_features' instead of having to implement this ndo?