ccw_device_private
struct ccw_device_private *private; /* cio private information */
struct ccw_device_private *node;
struct ccw_device_private *priv;
struct ccw_device_private *priv;
priv = container_of(work, struct ccw_device_private, todo_work);
cdev->private = kzalloc_obj(struct ccw_device_private,
struct ccw_device_private *priv = cdev->private;
struct ccw_device_private *priv = timer_container_of(priv, t, timer);