Re: [PATCH] [v2] Kbuild: move to -std=gnu11

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On Tue, Mar 1, 2022 at 11:43 AM Miguel Ojeda
<miguel.ojeda.sandonis@xxxxxxxxx> wrote:
> On Mon, Feb 28, 2022 at 11:32 AM Arnd Bergmann <arnd@xxxxxxxxxx> wrote:
> >
> > -under ``-std=gnu89`` [gcc-c-dialect-options]_: the GNU dialect of ISO C90
> > -(including some C99 features). ``clang`` [clang]_ is also supported, see
> > +under ``-std=gnu11`` [gcc-c-dialect-options]_: the GNU dialect of ISO C11
> > +(including some C17 features). ``clang`` [clang]_ is also supported, see
> I think the "(including some C17)" bit would not make much sense
> anymore. There were no major changes in C17 and GCC implements
> `-std=c11` and `-std=c17` as basically the same thing according to the
> docs (and GNU extensions apply equally to both, I would assume).

Ok, changed now.

> When I wrote the "(including some C99 features)" I meant that GCC
> implemented some C99 features as extensions in C90 mode, and the
> kernel used some of those (e.g. the now gone VLAs).

I suppose it's still true for some c2x features (static_assert, fallthrough,
binary literals, ...), but it seems easier to just leave it out.

> With that changed, for `programming-language.rst`:
> Reviewed-by: Miguel Ojeda <ojeda@xxxxxxxxxx>

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