62 	 * There can only be users if there is a container, and if there is a  in vfio_group_has_iommu()
63 	 * container there must be users.  in vfio_group_has_iommu()
65 	WARN_ON(!group->container != !group->container_users);  in vfio_group_has_iommu()
67 	return group->container || group->iommufd;  in vfio_group_has_iommu()
72  * if there was no container to unset.  Since the ioctl is called on
85 	if (group->container) {  in vfio_group_ioctl_unset_container()
105 	struct vfio_container *container;  in vfio_group_ioctl_set_container()  local
127 	container = vfio_container_from_file(fd_file(f));  in vfio_group_ioctl_set_container()
128 	if (container) {  in vfio_group_ioctl_set_container()
129 		ret = vfio_container_attach_group(container, group);  in vfio_group_ioctl_set_container()
372 	 * With the container FD the iommu_group_claim_dma_owner() is done  in vfio_group_ioctl_get_status()
491 	if (group->container)  in vfio_group_fops_release()
761 	if (group->container)  in vfio_device_remove_group()
793 	if (WARN_ON(!group->container))  in vfio_device_group_use_iommu()
809 	if (WARN_ON(!group->container))  in vfio_device_group_unuse_iommu()
818 	return device->group->container;  in vfio_device_has_container()