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Date:   Thu, 5 Apr 2018 15:09:42 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Martin Uecker <Martin.Uecker@....uni-goettingen.de>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Randy Dunlap <rdunlap@...radead.org>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Ingo Molnar <mingo@...nel.org>,
        David Laight <David.Laight@...lab.com>,
        Ian Abbott <abbotti@....co.uk>,
        LKML <linux-kernel@...r.kernel.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH v7] kernel.h: Retain constant expression output for max()/min()

On Thu, Apr 5, 2018 at 2:20 PM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> On Thu, Apr 5, 2018 at 1:42 PM, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
>>
>> Ok, applied.
>
> Ugh, during the merge window, we had actually grown a new example of
> that "different enum types" problem:
>
>         struct drm_prop_enum_list enum_list[max(DRM_COLOR_ENCODING_MAX,
>                                                 DRM_COLOR_RANGE_MAX)];
>
> in drm_plane_create_color_properties() in the drm drm_color_mgmt.c file.
>
> I ended up just fixing it up manually and added it to the commit. You
> should double-check my change, I've pushed it out now that the build
> seems ok for me.

Looks good; thanks!

> There may be others hiding that weren't caught by my limited build
> testing, trhough. So please keep an eye out for build warnings.

I'll spin up my full multi-arch allmodconfig builds and see if
anything kicks out...

-Kees

-- 
Kees Cook
Pixel Security

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