n_hdlc_buf_get
static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *list);
while ((buf = n_hdlc_buf_get(&n_hdlc->rx_buf_list)))
while ((buf = n_hdlc_buf_get(&n_hdlc->tx_buf_list)))
buf = n_hdlc_buf_get(list);
tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);
tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);
buf = n_hdlc_buf_get(&n_hdlc->rx_free_buf_list);
rbuf = n_hdlc_buf_get(&n_hdlc->rx_buf_list);
tbuf = n_hdlc_buf_get(&n_hdlc->tx_free_buf_list);