Re: [RFC PATCH] ARM: s3c: mark as deprecated and schedule removal after 2022

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On Tue, Nov 2, 2021 at 3:55 PM Krzysztof Kozlowski
<krzysztof.kozlowski@xxxxxxxxxxxxx> wrote:
> On 02/11/2021 14:05, Arnd Bergmann wrote:
> > On Tue, Nov 2, 2021 at 12:05 PM Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> wrote:
> >
> > The ones that would help the most in removing are probably omap1,
> > pxa, and the strongarm-based platforms: those have a lot of special
> > cases in the code base. At least a year ago the maintainers wanted
> > to keep those around, but maybe the 2022 LTS kernel is a better
> > time for planned EOL.
>
> If the maintainers or users expressed wish to keep them alive, let's
> keep them. In fact there might be some industrial machine working for 20
> more years...
>
> If you did not receive any feedback about your queries, I am happy to
> add similar deprecation-warning notes to these as well. Just let me know
> which one should be affected.

There are definitely platforms with long service life, such as ep93xx
or ixp4xx, both of which are actively being worked on. For the other
ones, I think it worth asking again every other year or so, either for
modernising or dropping them in the long run.

> > check around them, I'm fine with it though -- it would still catch all
> > real users without bothering build-testing bots.
>
> I like that idea, I'll use it in v2. No one really should build a real
> config with COMPILE_TEST and I want to nag and find the real users.
>
> > I think even with CONFIG_WERROR, we don't fail the build for #warning,
> > so that would also work in place of #pragma message.
>
> It fails, I tried it. That's why #pragma.

Ok, #pragma with #ifdef is fine then.

       Arnd



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