308 int qmi_txn_init(struct qmi_handle *qmi, struct qmi_txn *txn,  in qmi_txn_init()  argument
313 	memset(txn, 0, sizeof(*txn));  in qmi_txn_init()
315 	mutex_init(&txn->lock);  in qmi_txn_init()
316 	init_completion(&txn->completion);  in qmi_txn_init()
317 	txn->qmi = qmi;  in qmi_txn_init()
318 	txn->ei = ei;  in qmi_txn_init()
319 	txn->dest = c_struct;  in qmi_txn_init()
322 	ret = idr_alloc_cyclic(&qmi->txns, txn, 0, U16_MAX, GFP_KERNEL);  in qmi_txn_init()
326 	txn->id = ret;  in qmi_txn_init()
344 int qmi_txn_wait(struct qmi_txn *txn, unsigned long timeout)  in qmi_txn_wait()  argument
346 	struct qmi_handle *qmi = txn->qmi;  in qmi_txn_wait()
349 	ret = wait_for_completion_timeout(&txn->completion, timeout);  in qmi_txn_wait()
352 	mutex_lock(&txn->lock);  in qmi_txn_wait()
353 	idr_remove(&qmi->txns, txn->id);  in qmi_txn_wait()
354 	mutex_unlock(&txn->lock);  in qmi_txn_wait()
360 		return txn->result;  in qmi_txn_wait()
368 void qmi_txn_cancel(struct qmi_txn *txn)  in qmi_txn_cancel()  argument
370 	struct qmi_handle *qmi = txn->qmi;  in qmi_txn_cancel()
373 	mutex_lock(&txn->lock);  in qmi_txn_cancel()
374 	idr_remove(&qmi->txns, txn->id);  in qmi_txn_cancel()
375 	mutex_unlock(&txn->lock);  in qmi_txn_cancel()
391 			       struct qmi_txn *txn, const void *buf, size_t len)  in qmi_invoke_handler()  argument
418 		handler->fn(qmi, sq, txn, dest);  in qmi_invoke_handler()
478 	struct qmi_txn *txn = NULL;  in qmi_handle_message()  local
491 		txn = idr_find(&qmi->txns, hdr->txn_id);  in qmi_handle_message()
494 		if (!txn) {  in qmi_handle_message()
499 		mutex_lock(&txn->lock);  in qmi_handle_message()
502 		if (txn->dest && txn->ei) {  in qmi_handle_message()
503 			ret = qmi_decode_message(buf, len, txn->ei, txn->dest);  in qmi_handle_message()
507 			txn->result = ret;  in qmi_handle_message()
508 			complete(&txn->completion);  in qmi_handle_message()
510 			qmi_invoke_handler(qmi, sq, txn, buf, len);  in qmi_handle_message()
513 		mutex_unlock(&txn->lock);  in qmi_handle_message()
740 				struct sockaddr_qrtr *sq, struct qmi_txn *txn,  in qmi_send_message()  argument
752 				 txn->id, ei,  in qmi_send_message()
793 			 struct qmi_txn *txn, int msg_id, size_t len,  in qmi_send_request()  argument
796 	return qmi_send_message(qmi, sq, txn, QMI_REQUEST, msg_id, len, ei,  in qmi_send_request()
814 			  struct qmi_txn *txn, int msg_id, size_t len,  in qmi_send_response()  argument
817 	return qmi_send_message(qmi, sq, txn, QMI_RESPONSE, msg_id, len, ei,  in qmi_send_response()
838 	struct qmi_txn txn;  in qmi_send_indication()  local
842 	ret = qmi_txn_init(qmi, &txn, NULL, NULL);  in qmi_send_indication()
846 	rval = qmi_send_message(qmi, sq, &txn, QMI_INDICATION, msg_id, len, ei,  in qmi_send_indication()
850 	qmi_txn_cancel(&txn);  in qmi_send_indication()