linux-kernel - Re: linux-next: build warning in Linus' tree

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Message-ID: <CAMuHMdVSqTkockvOBChTfGt9PJBZiEqDiUAAcCSas2x9t6mD_g@mail.gmail.com>
Date:   Sat, 29 Oct 2016 23:29:32 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        linux-next <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build warning in Linus' tree

Hi Linus,

On Fri, Oct 28, 2016 at 1:01 AM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> On Thu, Oct 27, 2016 at 3:48 PM, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
>>
>> I wonder if we should make KASAN depend on !COMPILE_TEST, because it
>> does seem to disable a lot of build-time testing.
>
> Actually, we should probably just make the MEMORY_HOTPLUG dependency be
>
>         depends on COMPILE_TEST || !KASAN
>
> since the memory-hotplug code should still *build* with KASAN, it just
> doesn't work. That's exactly what the COMPILE_TEST config option is
> there for - to get build coverage even for things that aren't
> necessarily sane to run.

In what way does it not work? Does it crash?
People do run COMPILE_TEST=y/allmodconfig kernels.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds