linux-kernel - Re: [PATCH 2/4] bug: completely remove code of disabled VM_BUG

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Message-ID: <CAMuHMdXzLaPoGinwG9EAL5VYAbMdmx+U5m1Fg+53DAQgdi1hxg@mail.gmail.com>
Date:	Fri, 27 Apr 2012 07:17:50 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH 2/4] bug: completely remove code of disabled VM_BUG_ON()

On Fri, Apr 27, 2012 at 00:32, Andrew Morton <akpm@...ux-foundation.org> wrote:
> On Wed, 25 Apr 2012 16:40:32 +0200
> Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
>> On Wed, Apr 25, 2012 at 13:26, Konstantin Khlebnikov
>> <khlebnikov@...nvz.org> wrote:
>> > Even if CONFIG_DEBUG_VM=n gcc genereates code for some VM_BUG_ON()
>>
>> That's because of the side effects of the expression
>>
>> https://lkml.org/lkml/2012/4/25/146
>>
>> But IRIC, we do want them here?
>>
>
> AFAICT (lkml.org appears to be having a meltdown), you've gone and
> linked to this very thread.
>
> Please try again, this time avoiding hyperlinks ;)

Yeah, I noticed after the fact. I wanted to look up the definition of
unused_expression(), which obviously wasn't in my tree yet ;-)

Still, I think people started relyong on the side effects, didn't they?

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
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