RE: [PATCH 04/12] iommufd: Pass parent hwpt and user_data to iommufd_hw_pagetable_alloc()

Tian, Kevin
2023-03-17T10:24:09Z

> From: Liu, Yi L <yi.l.liu@intel.com>
> Sent: Thursday, March 9, 2023 4:09 PM
>
> + /* It must be either NESTED or UNMANAGED, depending on
> parent_domain */
> + if ((parent_domain && hwpt->domain->type !=
> IOMMU_DOMAIN_NESTED) ||
> + (!parent_domain && hwpt->domain->type !=
> IOMMU_DOMAIN_UNMANAGED))
> + goto out_abort;
> +

WARN_ON()