[PATCH v5 07/14] iommufd/viommu: Add iommufd_viommu_get_vdev_id helper

[Tian, Kevin]

> From: Nicolin Chen <nicolinc at nvidia.com>
> Sent: Wednesday, January 8, 2025 1:10 AM
> +
> +	xa_lock(&viommu->vdevs);
> +	xa_for_each(&viommu->vdevs, index, vdev) {
> +		if (vdev && vdev->dev == dev) {
> +			vdev_id = (unsigned long)vdev->id;
> +			break;
> +		}
> +	}

Nit. No need to check vdev pointer as commented in last review.

Reviewed-by: Kevin Tian <kevin.tian at intel.com>