On Mon, 11 Mar 2024, Boris Brezillon <boris.brezil...@collabora.com> wrote:
> On Mon, 11 Mar 2024 13:05:01 +0200
> Jani Nikula <jani.nik...@linux.intel.com> wrote:
>
>> This breaks the config for me:
>> 
>>   SYNC    include/config/auto.conf.cmd
>>   GEN     Makefile
>> drivers/iommu/Kconfig:14:error: recursive dependency detected!
>> drivers/iommu/Kconfig:14:    symbol IOMMU_SUPPORT is selected by DRM_PANTHOR
>> drivers/gpu/drm/panthor/Kconfig:3:   symbol DRM_PANTHOR depends on PM
>> kernel/power/Kconfig:183:    symbol PM is selected by PM_SLEEP
>> kernel/power/Kconfig:117:    symbol PM_SLEEP depends on HIBERNATE_CALLBACKS
>> kernel/power/Kconfig:35:     symbol HIBERNATE_CALLBACKS is selected by 
>> XEN_SAVE_RESTORE
>> arch/x86/xen/Kconfig:67:     symbol XEN_SAVE_RESTORE depends on XEN
>> arch/x86/xen/Kconfig:6:      symbol XEN depends on PARAVIRT
>> arch/x86/Kconfig:781:        symbol PARAVIRT is selected by HYPERV
>> drivers/hv/Kconfig:5:        symbol HYPERV depends on X86_LOCAL_APIC
>> arch/x86/Kconfig:1106:       symbol X86_LOCAL_APIC depends on X86_UP_APIC
>> arch/x86/Kconfig:1081:       symbol X86_UP_APIC prompt is visible depending 
>> on PCI_MSI
>> drivers/pci/Kconfig:39:      symbol PCI_MSI is selected by AMD_IOMMU
>> drivers/iommu/amd/Kconfig:3: symbol AMD_IOMMU depends on IOMMU_SUPPORT
>
> Uh, I guess we want a "depends on IOMMU_SUPPORT" instead of "select
> IOMMU_SUPPORT" in panthor then.

That works for me.

>
>> For a resolution refer to Documentation/kbuild/kconfig-language.rst
>> subsection "Kconfig recursive dependency limitations"

-- 
Jani Nikula, Intel

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