Re: [PATCH v2 4/4] iommufd/selftest: Add coverage for vdevice tombstone

[Jason Gunthorpe]

On Mon, Jun 23, 2025 at 05:49:46PM +0800, Xu Yilun wrote:
> diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c
> index 1a8e85afe9aa..092e1344447e 100644
> --- a/tools/testing/selftests/iommu/iommufd.c
> +++ b/tools/testing/selftests/iommu/iommufd.c
> @@ -3014,6 +3014,19 @@ TEST_F(iommufd_viommu, vdevice_cache)
>  	}
>  }
>  
> +TEST_F(iommufd_viommu, vdevice_tombstone)
> +{
> +	uint32_t viommu_id = self->viommu_id;
> +	uint32_t dev_id = self->device_id;
> +	uint32_t vdev_id = 0;
> +
> +	if (dev_id) {

Why the if? The test should work or skip, not silently skip.

self->device_id is setup by the fixture, it can't be absent.

Jason