Re: S390 testing for IOMMUFD

Jason Gunthorpe
2022-11-08T20:10:10Z

On Tue, Nov 08, 2022 at 03:07:19PM -0500, Eric Farman wrote:
> Patch 2 doesn't address the above symptoms, but a lot of that code is
> getting reworked by the aforementioned series so I didn't spend a lot
> of time studying your suggestion. And as I type this I see you just
> sent a new patch, let me go try that...

Patch2 is following the assumption the WARN_ON is triggered by a
failure path that isn't work right. Eg trying to unpin a 0 IOVA
because the failure flow is wrong. Removing all the calls to unpin on
failure paths make that impossible.

Jason