linux-kernel - Re: [PATCH 01/12] kbuild: make -Woverride-init warnings more consistent

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Date: Wed, 27 Mar 2024 10:22:30 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Jani Nikula" <jani.nikula@...ux.intel.com>,
 "Arnd Bergmann" <arnd@...nel.org>, linux-kbuild@...r.kernel.org,
 "Masahiro Yamada" <masahiroy@...nel.org>,
 "Harry Wentland" <harry.wentland@....com>,
 "Alex Deucher" <alexander.deucher@....com>,
 Christian König <christian.koenig@....com>,
 "Lucas De Marchi" <lucas.demarchi@...el.com>,
 "Oded Gabbay" <ogabbay@...nel.org>,
 "Maarten Lankhorst" <maarten.lankhorst@...ux.intel.com>,
 "Maxime Ripard" <mripard@...nel.org>,
 "Thomas Zimmermann" <tzimmermann@...e.de>,
 "Jakub Kicinski" <kuba@...nel.org>, "Paolo Abeni" <pabeni@...hat.com>,
 "Andrew Jeffery" <andrew@...econstruct.com.au>,
 "Linus Walleij" <linus.walleij@...aro.org>, "Joel Stanley" <joel@....id.au>,
 "Alexei Starovoitov" <ast@...nel.org>,
 "Daniel Borkmann" <daniel@...earbox.net>,
 "Andrew Morton" <akpm@...ux-foundation.org>,
 "Nathan Chancellor" <nathan@...nel.org>
Cc: "Nicolas Schier" <nicolas@...sle.eu>, dri-devel@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org, Netdev <netdev@...r.kernel.org>,
 linux-mm@...ck.org, llvm@...ts.linux.dev
Subject: Re: [PATCH 01/12] kbuild: make -Woverride-init warnings more consistent

On Wed, Mar 27, 2024, at 08:50, Jani Nikula wrote:
> On Tue, 26 Mar 2024, "Arnd Bergmann" <arnd@...db.de> wrote:
>> On Tue, Mar 26, 2024, at 21:24, Jani Nikula wrote:
>>> On Tue, 26 Mar 2024, Arnd Bergmann <arnd@...nel.org> wrote:
>>
>> It works now.
>>
>> The original __diag_ignore_all() only did it for gcc-8 and above
>> because that was initially needed to suppress warnings that
>> got added in that version, but this was always a mistake.
>>
>> 689b097a06ba ("compiler-gcc: Suppress -Wmissing-prototypes
>> warning for all supported GCC") made it work correctly.
>
> Oh, nice! Then I think we'd like to go back to __diag_ignore_all() in
> i915 and xe.
>
> The diff is below. I'm fine with you squashing it to your patch, or if
> you want me to turn it into a proper patch for you to pick up in your
> series, that's fine too. Just let me know.

I think I'd prefer to keep my patch simpler for the moment and
get that merged through the kbuild tree, it already touches
too many places at once.

It may be better for me to just drop the drivers/gpu/ part of
my patch so you can just just take your patch through the
drm tree. I actually have a similar patch for the amdgpu driver
that I can send if you like this option better.

    Arnd