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Re: linux-next: build failure after merge of the xen-tip tree
- To: Mark Brown <broonie@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Hou Wenlong <houwenlong.hwl@xxxxxxxxxxxx>, Alex Deucher <alexdeucher@xxxxxxxxx>
- From: Jürgen Groß <jgross@xxxxxxxx>
- Date: Wed, 4 Mar 2026 15:37:57 +0100
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- Cc: Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Linux Next Mailing List <linux-next@xxxxxxxxxxxxxxx>
- Delivery-date: Wed, 04 Mar 2026 14:38:02 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 04.03.26 15:27, Mark Brown wrote:
Hi all,
After merging the xen-tip tree, today's linux-next build (x86_64
allmodconfig) failed like this:
In file included from
/tmp/next/build/drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:38,
from
/tmp/next/build/drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
from
/tmp/next/build/drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
from /tmp/next/build/drivers/gpu/drm/amd/amdgpu/amdgpu.h:56,
from
/tmp/next/build/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c:29:
/tmp/next/build/drivers/gpu/drm/amd/amdgpu/../display/dc/dc_hw_types.h:221:6:
error: 'pixel_format' defined as wrong kind of tag
221 | enum pixel_format {
| ^~~~~~~~~~~~
Caused (I think) by commit
4e05a08c6f3f3 (ACPI, x86/boot: Remove {set|get}_root_pointer() ACPI
callbacks)
which changes the inclusions and I think triggers namespace clashes with
the unnamespaced pixel_format. I've used the tree from next-20260303
instead but really the fix here is that amdgpu and other things defining
a pixel_format should namespace things, I'll consider if a revert is
more sensible.
For now I have removed 4e05a08c6f3f3 from the Xen tree.
Juergen
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