vring_used_elem   157 include/linux/vringh.h 			       const struct vring_used_elem used[],
vring_used_elem    90 include/uapi/linux/virtio_ring.h 	struct vring_used_elem ring[];
vring_used_elem   146 include/uapi/linux/virtio_ring.h 		+ sizeof(__u16) * 3 + sizeof(struct vring_used_elem) * num;