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Re: [Xen-devel] [PATCH net-next] xen-netfront: mark expected switch fall-through
- To: Juergen Gross <jgross@xxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>
- From: "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>
- Date: Tue, 16 Apr 2019 09:52:42 -0500
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Kees Cook <keescook@xxxxxxxxxxxx>, netdev@xxxxxxxxxxxxxxx
- Delivery-date: Tue, 16 Apr 2019 14:52:53 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
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 ‘netback_changed’:
>> 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
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