Re: [PATCH] iommu/vt-d: gracefully handle DMAR units with no supported address widths

Greg KH
2021-01-20T12:39:54Z

On Wed, Jan 20, 2021 at 09:42:43AM +0000, David Woodhouse wrote:
> On Thu, 2020-09-24 at 15:08 +0100, David Woodhouse wrote:
> > From: David Woodhouse <dwmw@amazon.co.uk>
> >
> > Instead of bailing out completely, such a unit can still be used for
> > interrupt remapping.
> >
> > Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
>
> Could we have this for stable too please, along with the trivial
> subsequent fixup. They are:
>
> c40aaaac1018 ("iommu/vt-d: Gracefully handle DMAR units with no supported address widths")
> 9def3b1a07c4 ("iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built")
>
> They apply fairly straightforwardly when backported; let me know if you
> want us to send patches.

What stable kernel(s) do you want this in? The above patches are
already in 5.10.

thanks,

greg k-h