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can: peak_usb: mark expected switch fall-throughs

PATCH Applied Gustavo A. R. Silva 2 participants 2 messages Jun 28, 2018 – Jul 23, 2018

Subsystems (3)
Networking Network drivers CAN network drivers
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Gustavo A. R. Silva

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#0 lore raw

PATCH 1/1 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 <[email protected]>
---
 drivers/net/can/usb/peak_usb/pcan_usb.c      | 1 +
 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 1 +
 drivers/net/can/usb/peak_usb/pcan_usb_pro.c  | 2 ++
 3 files changed, 4 insertions(+)
drivers/net/can/usb/peak_usb/pcan_usb.c +1 -0
index f530a80..13238a7 100644
@@ -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) {
drivers/net/can/usb/peak_usb/pcan_usb_core.c +1 -0
index 50e9114..611f9d3 100644
@@ -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++;
drivers/net/can/usb/peak_usb/pcan_usb_pro.c +2 -0
index 0105fbf..d516def 100644
@@ -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);
Signature · 1 line
2.7.4
maintainer Applied
#1 lore raw
Quoted 4 lines · Gustavo A. R. Silva

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

Signed-off-by Gustavo A. R. Silva <[email protected]>

applied to linux-can-next.

Tnx,
Marc

Signature · 4 lines
Pengutronix e.K.                  | Marc Kleine-Budde           |
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