linux-kernel - Re: [PATCH 3/3] drm/i915: Enable -Wsometimes-uninitialized

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Message-ID: <CAKwvOdmASG7XM5Lkv5aVttwQZkaLjm2jo+-BxBkG97h3hZ_Pew@mail.gmail.com>
Date:   Tue, 14 Sep 2021 08:17:36 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Nathan Chancellor <nathan@...nel.org>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Jason Ekstrand <jason@...kstrand.net>,
        Thomas Hellström 
        <thomas.hellstrom@...ux.intel.com>,
        Matthew Auld <matthew.auld@...el.com>,
        "Michael J. Ruhl" <michael.j.ruhl@...el.com>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com,
        llvm@...ts.linux.dev
Subject: Re: [PATCH 3/3] drm/i915: Enable -Wsometimes-uninitialized

On Tue, Aug 24, 2021 at 3:54 PM Nathan Chancellor <nathan@...nel.org> wrote:
>
> This warning helps catch uninitialized variables. It should have been
> enabled at the same time as commit b2423184ac33 ("drm/i915: Enable
> -Wuninitialized") but I did not realize they were disabled separately.
> Enable it now that i915 is clean so that it stays that way.
>
> Signed-off-by: Nathan Chancellor <nathan@...nel.org>

Thanks for the series!
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

> ---
>  drivers/gpu/drm/i915/Makefile | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index 642a5b5a1b81..335ba9f43d8f 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -19,7 +19,6 @@ subdir-ccflags-y += $(call cc-disable-warning, missing-field-initializers)
>  subdir-ccflags-y += $(call cc-disable-warning, unused-but-set-variable)
>  # clang warnings
>  subdir-ccflags-y += $(call cc-disable-warning, sign-compare)
> -subdir-ccflags-y += $(call cc-disable-warning, sometimes-uninitialized)
>  subdir-ccflags-y += $(call cc-disable-warning, initializer-overrides)
>  subdir-ccflags-y += $(call cc-disable-warning, frame-address)
>  subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
> --
> 2.33.0
>


-- 
Thanks,
~Nick Desaulniers