linux-hardening - Re: [PATCH 000/141] Fix fall-through warnings for Clang

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Date:   Wed, 25 Nov 2020 23:02:40 +0000
From:   Edward Cree <ecree.xilinx@...il.com>
To:     Kees Cook <keescook@...omium.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
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Subject: Re: [PATCH 000/141] Fix fall-through warnings for Clang

On 24/11/2020 21:25, Kees Cook wrote:
> I still think this isn't right -- it's a case statement that runs off
> the end without an explicit flow control determination.

Proves too much — for instance
    case foo:
    case bar:
        thing;
        break;
 doesn't require a fallthrough; after case foo:, and afaik
 no-one is suggesting it should.  Yet it, too, is "a case
 statement that runs off the end without an explicit flow
 control determination".

-ed