WARN_ON(!mutex_is_locked(&mgr->qlock));
/* construct a chunk from the first msg in the tx_msg queue */
WARN_ON(!mutex_is_locked(&mgr->qlock));
/* construct a chunk from the first msg in the tx_msg queue */
txmsg = list_first_entry(&mgr->tx_msg_downq, struct drm_dp_sideband_msg_tx, next);
ret = process_single_tx_qlock(mgr, txmsg, false);
txmsg = list_first_entry(&mgr->tx_msg_downq, struct drm_dp_sideband_msg_tx, next);
ret = process_single_tx_qlock(mgr, txmsg, false);