xenvif_to_xenbus_device
struct xenbus_device *xendev = xenvif_to_xenbus_device(vif);
struct xenbus_device *dev = xenvif_to_xenbus_device(queue->vif);
xenbus_unmap_ring_vfree(xenvif_to_xenbus_device(vif),
xenbus_unmap_ring_vfree(xenvif_to_xenbus_device(queue->vif),
xenbus_unmap_ring_vfree(xenvif_to_xenbus_device(queue->vif),
err = xenbus_map_ring_valloc(xenvif_to_xenbus_device(queue->vif),
err = xenbus_map_ring_valloc(xenvif_to_xenbus_device(queue->vif),
struct xenbus_device *dev = xenvif_to_xenbus_device(vif);
struct xenbus_device *dev = xenvif_to_xenbus_device(vif);