linux-kernel - Re: [PATCH] mips: Remove compiler check in unroll macro

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Date:   Fri, 10 Jul 2020 15:43:43 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Nathan Chancellor <natechancellor@...il.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Cesar Eduardo Barros <cesarb@...arb.eti.br>,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH] mips: Remove compiler check in unroll macro

On Fri, Jul 10, 2020 at 3:34 PM Nathan Chancellor
<natechancellor@...il.com> wrote:
>
> Clang 8 was chosen as a minimum version for this check because there
> were some improvements around __builtin_constant_p in that release. In
> reality, MIPS was not even buildable until clang 9 so that check was not
> technically necessary. Just remove all compiler checks and just assume
> that we have a working compiler.

Thanks, that looks much nicer.

Applied.

I think we could probably remove the (unrelated) clang-8 check in the
arm side too, but I guess I'll let arm/clang people worry about it.

            Linus