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can: peak_usb: mark expected switch fall-throughs

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

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Gustavo A. R. Silva 2018-06-28 12:41:42 -05:00 committed by Marc Kleine-Budde
parent 9e5f1b273e
commit f805ed8489
3 changed files with 4 additions and 0 deletions
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1
drivers/net/can/usb/peak_usb/pcan_usb.c
View File

@ -423,6 +423,7 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
new_state = CAN_STATE_ERROR_WARNING;
break;
}
/* else: fall through */
case CAN_STATE_ERROR_WARNING:
if (n & PCAN_USB_ERROR_BUS_HEAVY) {

1
drivers/net/can/usb/peak_usb/pcan_usb_core.c
View File

@ -353,6 +353,7 @@ static netdev_tx_t peak_usb_ndo_start_xmit(struct sk_buff *skb,
default:
netdev_warn(netdev, "tx urb submitting failed err=%d\n",
err);
/* fall through */
case -ENOENT:
/* cable unplugged */
stats->tx_dropped++;

2
drivers/net/can/usb/peak_usb/pcan_usb_pro.c
View File

@ -141,8 +141,10 @@ static int pcan_msg_add_rec(struct pcan_usb_pro_msg *pm, u8 id, ...)
switch (id) {
case PCAN_USBPRO_TXMSG8:
i += 4;
/* fall through */
case PCAN_USBPRO_TXMSG4:
i += 4;
/* fall through */
case PCAN_USBPRO_TXMSG0:
*pc++ = va_arg(ap, int);
*pc++ = va_arg(ap, int);