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

[Jason Gunthorpe]

On Tue, Apr 30, 2024 at 10:57:04PM +0800, Lu Baolu wrote:
> @@ -206,8 +197,11 @@ void iommu_report_device_fault(struct device *dev, struct iopf_fault *evt)
>  	if (group == &abort_group)
>  		goto err_abort;
>  
> -	group->domain = get_domain_for_iopf(dev, fault);
> -	if (!group->domain)
> +	if (!(fault->prm.flags & IOMMU_FAULT_PAGE_REQUEST_PASID_VALID) ||
> +	    get_attach_handle_for_iopf(dev, fault->prm.pasid, group))
> +		get_attach_handle_for_iopf(dev, IOMMU_NO_PASID, group);

That seems a bit weird looking?

get_attach_handle_for_iopf(dev, 
   (fault->prm.flags &
   IOMMU_FAULT_PAGE_REQUEST_PASID_VALID) ? fault->prm.pasid : IOMMU_NO_PASID,
   group);

Jason