[PATCH] net: usb: Mark expected switch fall-throughs

From: Gustavo A. R. Silva
Date: Thu Jun 28 2018 - 15:12:21 EST


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

Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
drivers/net/usb/catc.c | 1 +
drivers/net/usb/cdc-phonet.c | 1 +
drivers/net/usb/r8152.c | 2 ++
3 files changed, 4 insertions(+)

diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 18d36df..424053b 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -869,6 +869,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
default:
dev_warn(&intf->dev,
"Couldn't detect memory size, assuming 32k\n");
+ /* fall through */
case 0x87654321:
catc_set_reg(catc, TxBufCount, 4);
catc_set_reg(catc, RxBufCount, 16);
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
index 3c40312..78b16eb 100644
--- a/drivers/net/usb/cdc-phonet.c
+++ b/drivers/net/usb/cdc-phonet.c
@@ -110,6 +110,7 @@ static void tx_complete(struct urb *req)
case -ECONNRESET:
case -ESHUTDOWN:
dev->stats.tx_aborted_errors++;
+ /* fall through */
default:
dev->stats.tx_errors++;
dev_dbg(&dev->dev, "TX error (%d)\n", status);
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 1fd1650..124211a 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1376,6 +1376,7 @@ static void intr_callback(struct urb *urb)
case -ECONNRESET: /* unlink */
case -ESHUTDOWN:
netif_device_detach(tp->netdev);
+ /* fall through */
case -ENOENT:
case -EPROTO:
netif_info(tp, intr, tp->netdev,
@@ -2741,6 +2742,7 @@ static void r8153b_ups_en(struct r8152 *tp, bool enable)
r8152_mdio_write(tp, MII_BMCR, data);

data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
+ /* fall through */

default:
if (data != PHY_STAT_LAN_ON)
--
2.7.4