net: ch9200: use __func__ in debug message

Use __func__ to print the function name instead of hard coded string.

Signed-off-by: Chen Zhou <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/usb/ch9200.c

···
 		request_type = (USB_DIR_IN | USB_TYPE_VENDOR |
 				USB_RECIP_DEVICE);
 
-	netdev_dbg(dev->net, "Control_read() index=0x%02x size=%d\n",
-		   index, size);
+	netdev_dbg(dev->net, "%s() index=0x%02x size=%d\n",
+		   __func__, index, size);
 
 	buf = kmalloc(size, GFP_KERNEL);
 	if (!buf) {
···
 		request_type = (USB_DIR_OUT | USB_TYPE_VENDOR |
 				USB_RECIP_DEVICE);
 
-	netdev_dbg(dev->net, "Control_write() index=0x%02x size=%d\n",
-		   index, size);
+	netdev_dbg(dev->net, "%s() index=0x%02x size=%d\n",
+		   __func__, index, size);
 
 	if (data) {
 		buf = kmemdup(data, size, GFP_KERNEL);
···
 	struct usbnet *dev = netdev_priv(netdev);
 	unsigned char buff[2];
 
-	netdev_dbg(netdev, "ch9200_mdio_read phy_id:%02x loc:%02x\n",
-		   phy_id, loc);
+	netdev_dbg(netdev, "%s phy_id:%02x loc:%02x\n",
+		   __func__, phy_id, loc);
 
 	if (phy_id != 0)
 		return -ENODEV;
···
 	struct usbnet *dev = netdev_priv(netdev);
 	unsigned char buff[2];
 
-	netdev_dbg(netdev, "ch9200_mdio_write() phy_id=%02x loc:%02x\n",
-		   phy_id, loc);
+	netdev_dbg(netdev, "%s() phy_id=%02x loc:%02x\n",
+		   __func__, phy_id, loc);
 
 	if (phy_id != 0)
 		return;
···
 	mii_check_media(&dev->mii, 1, 1);
 	mii_ethtool_gset(&dev->mii, &ecmd);
 
-	netdev_dbg(dev->net, "link_reset() speed:%d duplex:%d\n",
-		   ecmd.speed, ecmd.duplex);
+	netdev_dbg(dev->net, "%s() speed:%d duplex:%d\n",
+		   __func__, ecmd.speed, ecmd.duplex);
 
 	return 0;
 }
···
 	unsigned char mac_addr[0x06];
 	int rd_mac_len = 0;
 
-	netdev_dbg(dev->net, "get_mac_address:\n\tusbnet VID:%0x PID:%0x\n",
+	netdev_dbg(dev->net, "%s:\n\tusbnet VID:%0x PID:%0x\n", __func__,
 		   le16_to_cpu(dev->udev->descriptor.idVendor),
 		   le16_to_cpu(dev->udev->descriptor.idProduct));