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

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
> 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()