Re: [PATCH 0/2] Fix amdgpu detection of pci=realloc

[Mario Limonciello]

On 10/19/26 20:44, Mario Limonciello wrote:
> amdgpu needs to know the bus number the platform assigned a device to
> be able to match firmware images against the right device.
>
> This was previously adjusted to be a soft filter due to
> commit 11c141672045f ("drm/amdgpu: Fix VFCT bus number matching with
> soft filter") where if everything but the number matched to take a device.
>
> This however fails when there are two identical devices.  Instead save the
> initial bus number to the PCI device structure and then match that.
>
> Link: https://lore.kernel.org/linux-pci/20261015124843.203905-1-mario.limonciello@xxxxxxx/
> Link: https://lore.kernel.org/amd-gfx/20261019194106.2796150-1-alexander.deucher@xxxxxxx/
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> ---
> Mario Limonciello (2):
>        PCI: Preserve the initial bus number in pci_dev
>        drm/amdgpu: Match VFCT using initial PCI bus number
>
>   drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 17 +++--------------
>   drivers/pci/probe.c                      |  1 +
>   include/linux/pci.h                      |  1 +
>   3 files changed, 5 insertions(+), 14 deletions(-)
> ---
> base-commit: 87bba57a9f33e2b5e90d4ad70973675333182a2c
> change-id: 20261019-vfct-regression-2142fc52852a
>
> Best regards,
> --
> Mario Limonciello <mario.limonciello@xxxxxxx>

I think Sashiko is right on the feedback.  I'll iterate further on it.