Re: [PATCH net-next] xen-netfront: mark expected switch fall-through

From: Gustavo A. R. Silva
Date: Tue Apr 16 2019 - 10:52:52 EST




On 4/16/19 2:17 AM, Juergen Gross wrote:
> On 15/04/2019 23:11, 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 warning:
>>
>> drivers/net/xen-netfront.c: In function ânetback_changedâ:
>> drivers/net/xen-netfront.c:2038:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>> if (dev->state == XenbusStateClosed)
>> ^
>> drivers/net/xen-netfront.c:2041:2: note: here
>> case XenbusStateClosing:
>> ^~~~
>>
>> Warning level 3 was used: -Wimplicit-fallthrough=3
>>
>> Notice that, in this particular case, the code comment is modified
>> in accordance with what GCC is expecting to find.
>>
>> This patch is part of the ongoing efforts to enable
>> -Wimplicit-fallthrough.
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
>
> Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
>

Thanks, Juergen.
--
Gustavo