linux-kernel - Re: [PATCH v2 1/2] drm/amdgpu: Temporarily disable broken Clang builds due to blown stack-frame

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Date:   Fri, 25 Nov 2022 13:11:43 +0100
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Lee Jones" <lee@...nel.org>,
        "Andrew Morton" <akpm@...ux-foundation.org>,
        "Nathan Chancellor" <nathan@...nel.org>,
        "Maarten Lankhorst" <maarten.lankhorst@...ux.intel.com>,
        mripard@...nel.org, "Thomas Zimmermann" <tzimmermann@...e.de>,
        "Dave Airlie" <airlied@...il.com>,
        "Daniel Vetter" <daniel@...ll.ch>,
        "Nick Desaulniers" <ndesaulniers@...gle.com>,
        "Tom Rix" <trix@...hat.com>,
        "Harry Wentland" <harry.wentland@....com>,
        "Leo Li" <sunpeng.li@....com>,
        "Rodrigo Siqueira" <Rodrigo.Siqueira@....com>,
        "Alex Deucher" <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        Xinhui.Pan@....com
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 1/2] drm/amdgpu: Temporarily disable broken Clang builds due to
 blown stack-frame

On Fri, Nov 25, 2022, at 13:07, Lee Jones wrote:
> calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> architectures built with Clang (all released versions), whereby the stack
> frame gets blown up to well over 5k.  This would cause an immediate kernel
> panic on most architectures.  We'll revert this when the following bug report
> has been resolved: https://github.com/llvm/llvm-project/issues/41896.
>
> Suggested-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Lee Jones <lee@...nel.org>

Acked-by: Arnd Bergmann <arnd@...db.de>