can: peak_usb: mark expected switch fall-throughs

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>

diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index f530a80..13238a7 100644 (file)
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -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) {

diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index 50e9114..611f9d3 100644 (file)
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -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++;

diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index 0105fbf..d516def 100644 (file)
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -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);