RE: [PATCH v5 3/9] iommu: Add attachment handle to struct iopf_group

[Tian, Kevin]

> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Sent: Tuesday, April 30, 2024 10:57 PM
> 
> Previously, the domain that a page fault targets is stored in an
> iopf_group, which represents a minimal set of page faults. With the
> introduction of attachment handle, replace the domain with the handle

It's better to use 'attach handle' as the code does.

> +	handle = iommu_attach_handle_get(dev->iommu_group, pasid, 0);
> +	if (IS_ERR(handle))
> +		return PTR_ERR(handle);
> 
> -	if (!domain || !domain->iopf_handler) {
> -		dev_warn_ratelimited(dev,
> -			"iopf (pasid %d) without domain attached or handler
> installed\n",
> -			 fault->prm.pasid);
> +	group->attach_handle = handle;
> +	group->domain = handle->domain;

this change also removes the warning message. Is it desired?