Re: [PATCH v4 09/17] iommufd/device: Add helpers to enforce/remove device reserved regions

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> @@ -444,10 +465,9 @@ iommufd_device_do_replace(struct iommufd_device *idev,
>  	}
>  
>  	old_hwpt = igroup->hwpt;
> -	if (hwpt->ioas != old_hwpt->ioas) {
> +	if (iommufd_hw_pagetable_compare_ioas(old_hwpt, hwpt)) {
>  		list_for_each_entry(cur, &igroup->device_list, group_item) {
> -			rc = iopt_table_enforce_dev_resv_regions(
> -				&hwpt->ioas->iopt, cur->dev, NULL);
> +			rc = iommufd_device_enforce_rr(cur, hwpt, NULL);
>  			if (rc)
>  				goto err_unresv;
>  		}
> @@ -461,12 +481,10 @@ iommufd_device_do_replace(struct iommufd_device *idev,
>  	if (rc)
>  		goto err_unresv;
>  
> -	if (hwpt->ioas != old_hwpt->ioas) {
> +	if (iommufd_hw_pagetable_compare_ioas(old_hwpt, hwpt)) {
>  		list_for_each_entry(cur, &igroup->device_list, group_item)
> -			iopt_remove_reserved_iova(&old_hwpt->ioas->iopt,
> -						  cur->dev);
> +			iommufd_device_remove_rr(cur, hwpt);
Should be "iommufd_device_remove_rr(cur, old_hwpt);"

>  	}
> -
>  	igroup->hwpt = hwpt;
>  
>  	/*
 



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