linux-kernel - Re: linux-next-20251029

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Message-ID: <149f5bb52a21becedc17a5b0bf1a586672940af6.camel@gmail.com>
Date: Thu, 06 Nov 2025 03:40:52 +0100
From: Timur Kristóf <timur.kristof@...il.com>
To: Amit Dhingra <mechanicalamit@...il.com>
Cc: Valdis Klētnieks <valdis.kletnieks@...edu>, Alex
 Deucher	 <alexander.deucher@....com>, Leo Li <sunpeng.li@....com>, David
 Airlie	 <airlied@...il.com>, amd-gfx list <amd-gfx@...ts.freedesktop.org>,
 dri-devel	 <dri-devel@...ts.freedesktop.org>, linux-kernel@...r.kernel.org
Subject: Re: linux-next-20251029 - build error in amdgpu

On Wed, 2025-11-05 at 18:34 -0800, Amit Dhingra wrote:
> 
> > 
> > What do I need to do to trigger the warning?
> > 
> I have the same problem.
> 
> linux-next on Arch Linux
> GCC : 15.2.1 20250813
> 
> 
> Steps to reproduce the error
> - make mrproper
> - make allmodconfig
> - make drivers/gpu/drm/amd/amdgpu/
> 
> Turns out its due to randconfig, See [1]
> 
> Setting RANDSTRUCT_NONE=y seems to stop the error.

Can you please try and see if this fixes the warning?
https://pastebin.com/raw/b8j3UABj

Alternatively, if anyone has other recommendations on how to fix it,
I'm also open to suggestions.

Thanks,
Timur


> > 
> > Valdis Klētnieks <valdis.kletnieks@...edu> ezt írta (időpont: 2025.
> > nov.
> > 2., Vas 1:59):
> > 
> > > On Thu, 30 Oct 2025 19:05:30 +0100, Timur Kristóf said:
> > > 
> > > > Can you say how to reproduce that?
> > > > I use the same version of GCC but it hasn't given me any
> > > > warning or
> > > > error for that patch.
> > > 
> > > Upon further testing,
> > > 
> > > [/usr/src/linux-next] make
> > > 
> > > is sufficient on my system. Turns out that it errors out even
> > > without W=1.
> > > My
> > > next guess was that it had to do with -Werror, which would cause
> > > warnings
> > > to
> > > be treated as errors, but my .config has
> > > 
> > > # CONFIG_WERROR is not set
> > > # CONFIG_DRM_WERROR is not set
> > > # CONFIG_DRM_AMDGPU_WERROR is not set
> > > 
> > > Do you perhaps have patches in your tree that aren't in next-
> > > 20251029?
> > > 
> > > I wonder if Fedora's build of gcc 15.2.1 is different somehow
> > > from the
> > > build you're using....
> > > 
> > > 
> > > 
> > >