Re: [PATCH 1/3] xhci: also avoid the XHCI_ZERO_64B_REGS quirk with a passthrough iommu

[Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>]

On 30.3.2023 17.40, Greg KH wrote:
> On Thu, Mar 30, 2023 at 05:30:54PM +0300, Mathias Nyman wrote:
> > From: D Scott Phillips <scott@xxxxxxxxxxxxxxxxxxxxxx>
> >
> > Previously the quirk was skipped when no iommu was present. The same
> > rationale for skipping the quirk also applies in the iommu.passthrough=1
> > case.
> >
> > Skip applying the XHCI_ZERO_64B_REGS quirk if the device's iommu domain is
> > passthrough.
> >
> > Fixes: 12de0a35c996 ("xhci: Add quirk to zero 64bit registers on Renesas PCIe controllers")
>
> Why not also for stable?

Ah, yes, this should go to stable as well.

Thanks
Mathias