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Re: [PATCH 000/141] Fix fall-through warnings for Clang
- To: Joe Perches <joe@xxxxxxxxxxx>, "Gustavo A. R. Silva" <gustavoars@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx
- From: "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>
- Date: Fri, 20 Nov 2020 13:02:34 -0600
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- Delivery-date: Fri, 20 Nov 2020 19:02:49 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 11/20/20 12:28, Joe Perches wrote:
> On Fri, 2020-11-20 at 12:21 -0600, Gustavo A. R. Silva wrote:
>> Hi all,
>>
>> This series aims to fix almost all remaining fall-through warnings in
>> order to enable -Wimplicit-fallthrough for Clang.
>>
>> In preparation to enable -Wimplicit-fallthrough for Clang, explicitly
>> add multiple break/goto/return/fallthrough statements instead of just
>> letting the code fall through to the next case.
>>
>> Notice that in order to enable -Wimplicit-fallthrough for Clang, this
>> change[1] is meant to be reverted at some point. So, this patch helps
>> to move in that direction.
>
> This was a bit hard to parse for a second or three.
>
> Thanks Gustavo.
>
> How was this change done?
I audited case by case in order to determine the best fit for each
situation. Depending on the surrounding logic, sometimes it makes
more sense a goto or a fallthrough rather than merely a break.
Thanks
--
Gustavo
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