Re: [patch V4 00/21] genirq, irqchip: Convert ARM MSI handling to per device MSI domains

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On Mon, Jul 15 2024 at 13:18, Johan Hovold wrote:
> I've applied the series (21 commits from linux-next) on top of 6.10 and
> can confirm that the breakage is caused by commits:
>
> 	3d1c927c08fc ("irqchip/gic-v3-its: Switch platform MSI to MSI parent")
> 	233db05bc37f ("irqchip/gic-v3-its: Provide MSI parent for PCI/MSI[-X]")
>
> Applying the series up until the change before 3d1c927c08fc unbreaks the
> wifi on one machine:
>
> 	ath11k_pci 0006:01:00.0: failed to enable msi: -22
> 	ath11k_pci 0006:01:00.0: probe with driver ath11k_pci failed with error -22

3d1c927c08fc converts the platform MSI stuff over which is unrelated to
PCI/MSI. I'm confused how this affects PCI/MSI of the WIFI card.

> and backing up until the commit before 233db05bc37f makes the NVMe come
> up again during boot on another.

So that undoes the PCI/MSI change. Hrm.

> I have not tried to debug this further.

Any hint would be appreciated.

Thanks,

        tglx




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