On Thu, Nov 06, 2025 at 03:40:52AM +0100, Timur Kristóf wrote: > 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
The patch above defining all fields seems to fix the error. > > Alternatively, if anyone has other recommendations on how to fix it, > I'm also open to suggestions. > What seemed to also work for me is to defining the struct as below without an initialization. static const struct stream_encoder_funcs dce110_an_str_enc_funcs; Its static so should be initialized zeroed out. objdump shows correct size allocation. objdump -x dce_stream_encoder.o 0000000000000b60 l O .rodata 0000000000000130 dce110_str_enc_funcs 0000000000000a00 l O .rodata 0000000000000130 dce110_an_str_enc_funcs > Thanks, > Timur > > > > > > > > Valdis Klētnieks <[email protected]> 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.... > > > > > > > > > > > > > > > >
