[Bug 141741] drm:radeon_get_bios [radeon]] *ERROR* Unable to locate a BIOS ROM

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=141741

--- Comment #21 from Tero Roponen <tero.roponen at gmail.com> ---
(In reply to Lukas P from comment #19)
> I did a bisect and it reported the following commit as the first bad one:
> 30b5b8808c12bcd947dd474980482561b69c1bcb
> 
> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> index a1f37db..209292e 100644
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -128,4 +128,5 @@ config PCI_HYPERV
>            The PCI device frontend driver allows the kernel to import
> arbitrary
>            PCI devices from a PCI backend to support PCI driver domains.
>  
> +source "drivers/pci/hotplug/Kconfig"
>  source "drivers/pci/host/Kconfig"
> 
> If I remove the changed line in the source of v4.6 everything works normally.

I'm not an expert, but removing the inclusion of drivers/pci/hotplug/Kconfig
equals to disabling all the HOTPLUG_PCI_* options in the config ("Support for
PCI Hotplug" in menuconfig). You could try disabling those one by one to see
which one causes the problem.

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