Re: [PATCH] can: mark expected switch fall-throughs

[Marc Kleine-Budde]

On 1/29/19 7:06 PM, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
> 
> This patch fixes the following warnings:
> 
> drivers/net/can/peak_canfd/peak_pciefd_main.c:668:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> drivers/net/can/spi/mcp251x.c:875:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
> drivers/net/can/at91_can.c:895:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
> drivers/net/can/at91_can.c:953:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
> drivers/net/can/usb/peak_usb/pcan_usb.c: In function âpcan_usb_decode_errorâ:
> drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (n & PCAN_USB_ERROR_BUS_LIGHT) {
>       ^
> drivers/net/can/usb/peak_usb/pcan_usb.c:428:2: note: here
>   case CAN_STATE_ERROR_WARNING:
>   ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enabling
> -Wimplicit-fallthrough.
> 
> Notice that in some cases spelling mistakes were fixed.
> In other cases, the /* fall through */ comment is placed
> at the bottom of the case statement, which is what GCC
> is expecting to find.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>

Added to linux-can-next.

Tnx
Marc

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