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    SubjectRe: [Intel-wired-lan] [PATCH 000/141] Fix fall-through warnings for Clang

    On Wed, 25 Nov 2020, Miguel Ojeda wrote:

    >
    > The C standard has nothing to do with this. We use compiler extensions
    > of several kinds, for many years. Even discounting those extensions, the
    > kernel is not even conforming to C due to e.g. strict aliasing. I am not
    > sure what you are trying to argue here.
    >

    I'm saying that supporting the official language spec makes more sense
    than attempting to support a multitude of divergent interpretations of the
    spec (i.e. gcc, clang, coverity etc.)

    I'm also saying that the reason why we use -std=gnu89 is that existing
    code was written in that language, not in ad hoc languages comprised of
    collections of extensions that change with every release.

    > But, since you insist: yes, the `fallthrough` attribute is in the
    > current C2x draft.
    >

    Thank you for checking. I found a free version that's only 6 weeks old:

    http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2583.pdf

    It will be interesting to see whether 6.7.11.5 changes once the various
    implementations reach agreement.

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