r8152: support get_msglevel and set_msglevel

Support get_msglevel and set_msglevel.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/r8152.c

@@ -2852,6 +2852,20 @@ static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	return ret;
 }
 
+static u32 rtl8152_get_msglevel(struct net_device *dev)
+{
+	struct r8152 *tp = netdev_priv(dev);
+
+	return tp->msg_enable;
+}
+
+static void rtl8152_set_msglevel(struct net_device *dev, u32 value)
+{
+	struct r8152 *tp = netdev_priv(dev);
+
+	tp->msg_enable = value;
+}
+
 static void rtl8152_get_drvinfo(struct net_device *netdev,
 				struct ethtool_drvinfo *info)
 {
@@ -2895,6 +2909,8 @@ static struct ethtool_ops ops = {
 	.get_settings = rtl8152_get_settings,
 	.set_settings = rtl8152_set_settings,
 	.get_link = ethtool_op_get_link,
+	.get_msglevel = rtl8152_get_msglevel,
+	.set_msglevel = rtl8152_set_msglevel,
 	.get_wol = rtl8152_get_wol,
 	.set_wol = rtl8152_set_wol,
 };