28 static struct virtqueue *vq;  variable
33 static void random_recv_done(struct virtqueue *vq)  in random_recv_done()  argument
36 	if (!virtqueue_get_buf(vq, &data_avail))  in random_recv_done()
50 	if (virtqueue_add_buf(vq, &sg, 0, 1, buf, GFP_KERNEL) < 0)  in register_buffer()
53 	virtqueue_kick(vq);  in register_buffer()
92 	if (vq) {  in virtrng_probe()
97 	vq = virtio_find_single_vq(vdev, random_recv_done, "input");  in virtrng_probe()
98 	if (IS_ERR(vq)) {  in virtrng_probe()
99 		err = PTR_ERR(vq);  in virtrng_probe()
100 		vq = NULL;  in virtrng_probe()
107 		vq = NULL;  in virtrng_probe()
119 	vq = NULL;  in virtrng_remove()