750           size_t used_size = pdu->used_size;  in coap_option_check_critical()  local
761           if (used_size != pdu->used_size) {  in coap_option_check_critical()
798                   pdu->used_size + pdu->hdr_size);  in coap_session_send_pdu()
1457         if (pdu->used_size + 1 > pdu->max_size) {  in coap_send_internal()
1461         if (!coap_pdu_resize(pdu, pdu->used_size + 1)) {  in coap_send_internal()
1465         data_len = pdu->used_size - (pdu->data - pdu->token);  in coap_send_internal()
1477       if (pdu->used_size + len + 1 <= pdu->max_size) {  in coap_send_internal()
1478         size_t old_size = pdu->used_size;  in coap_send_internal()
1479         if (coap_pdu_resize(pdu, pdu->used_size + len + 1)) {  in coap_send_internal()
1496             pdu->used_size += len + 1;  in coap_send_internal()
1581       (size_t)bytes_written < pdu->used_size + pdu->hdr_size) {  in coap_send_internal()
1767     assert(session->partial_write < q->pdu->used_size + q->pdu->hdr_size);  in coap_write_session()
1770                     q->pdu->used_size + q->pdu->hdr_size - session->partial_write);  in coap_write_session()
1774         (size_t)bytes_written < q->pdu->used_size + q->pdu->hdr_size - session->partial_write) {  in coap_write_session()
1882           size_t len = session->partial_pdu->used_size  in coap_read_session()
1940             session->partial_pdu->used_size = size;  in coap_read_session()
2537       if (response->used_size + len + 1 > response->max_size) {  in hnd_get_wellknown()
2543                        len, response->max_size  - response->used_size - 1);  in hnd_get_wellknown()
2544         len = response->max_size - response->used_size - 1;  in hnd_get_wellknown()
2569     response->used_size = response->e_token_length;  in hnd_get_wellknown()
2689           response->used_size = 0;  in no_response()
3235       response->used_size = 0;  in handle_request()