REQ_FOOTER_DESC 215 uspace/drv/block/virtio-blk/virtio-blk.c REQ_FOOTER_DESC(descno)); REQ_FOOTER_DESC 216 uspace/drv/block/virtio-blk/virtio-blk.c virtio_virtq_desc_set(vdev, RQ_QUEUE, REQ_FOOTER_DESC(descno),