net: usb: rtl8150: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through.

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough.

---
 drivers/net/usb/rtl8150.c | 1 +
 1 file changed, 1 insertion(+)

index 3f145e4c6c08..59dbdbb5feff 100644
@@ -847,6 +847,7 @@ static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 	switch (cmd) {
 	case SIOCDEVPRIVATE:
 		data[0] = dev->phy;
+		/* fall through */
 	case SIOCDEVPRIVATE + 1:
 		read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]);
 		break;

From: "Gustavo A. R. Silva" <[email protected]>
Date: Fri, 8 Feb 2019 13:09:06 -0600

Applied.