linux-kernel - Re: [PATCH (set 1) 00/20] Rid W=1 warnings from GPU

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Message-ID: <vkoj32cjbaozwcgfrp2mowkm6koqtl6espou6vms2pvfhxr5z7@ofabj6kd2j4r>
Date:   Thu, 24 Aug 2023 11:16:51 +0200
From:   Maxime Ripard <mripard@...nel.org>
To:     Jani Nikula <jani.nikula@...ux.intel.com>
Cc:     Lee Jones <lee@...nel.org>, Karol Herbst <kherbst@...hat.com>,
        nouveau@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        Mikko Perttunen <mperttunen@...dia.com>,
        Maíra Canal <mairacanal@...eup.net>,
        Thierry Reding <thierry.reding@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Mario Limonciello <mario.limonciello@....com>,
        Shashank Sharma <shashank.sharma@....com>,
        Michal Simek <michal.simek@...inx.com>,
        amd-gfx@...ts.freedesktop.org,
        Jonathan Hunter <jonathanh@...dia.com>,
        Luben Tuikov <luben.tuikov@....com>,
        Danilo Krummrich <dakr@...hat.com>,
        Ben Skeggs <bskeggs@...hat.com>, linux-media@...r.kernel.org,
        Stanley Yang <Stanley.Yang@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        linaro-mm-sig@...ts.linaro.org, linux-tegra@...r.kernel.org,
        NXP Linux Team <linux-imx@....com>,
        linux-arm-kernel@...ts.infradead.org,
        Hyun Kwon <hyun.kwon@...inx.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        "Pan, Xinhui" <Xinhui.Pan@....com>, linux-kernel@...r.kernel.org,
        Jerome Glisse <glisse@...edesktop.org>,
        Alex Deucher <alexander.deucher@....com>,
        Gourav Samaiya <gsamaiya@...dia.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Christian König <christian.koenig@....com>,
        Hawking Zhang <Hawking.Zhang@....com>
Subject: Re: [PATCH (set 1) 00/20] Rid W=1 warnings from GPU

On Thu, Aug 24, 2023 at 12:03:20PM +0300, Jani Nikula wrote:
> On Thu, 24 Aug 2023, Lee Jones <lee@...nel.org> wrote:
> > This set is part of a larger effort attempting to clean-up W=1
> > kernel builds, which are currently overwhelmingly riddled with
> > niggly little warnings.
> 
> The next question is, how do we keep it W=1 clean going forward?
> 
> Most people don't use W=1 because it's too noisy, so it's a bit of a
> catch-22.
> 
> In i915, we enable a lot of W=1 warnings using subdir-ccflags-y in our
> Makefile. For CI/developer use we also enable kernel-doc warnings by
> default.
> 
> Should we start enabling some of those warning flags in drm/Makefile to
> to keep the entire subsystem warning free?

I think that's a good idea. At least the documentation fixes I just
merged could have been easily caught before submission.

Maxime

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