+ abuf = kzalloc(sizeof(*abuf) + len, GFP_ATOMIC);
+ if (!abuf)
+ return -ENOMEM;
+
+ abuf->len = len;
+ memcpy(abuf->buf, buf, len);
+
+ spin_lock_irqsave(&apr->rx_lock, flags);
+ list_add_tail(&abuf->node, &apr->rx_list);
+ spin_unlock_irqrestore(&apr->rx_lock, flags);
+
+ queue_work(apr->rxwq, &apr->rx_work);
+
+ return 0;
+}
+
+
+static int apr_do_rx_callback(struct apr *apr, struct apr_rx_buf *abuf)
+{
+ uint16_t hdr_size, msg_type, ver, svc_id;
+ struct apr_device *svc = NULL;
+ struct apr_driver *adrv = NULL;
+ struct apr_resp_pkt resp;
+ struct apr_hdr *hdr;
+ unsigned long flags;
+ void *buf = abuf->buf;
+ int len = abuf->len;
+