qcacld-3.0: Fix for QoS prioritization after roaming

Voice traffic is properly prioritized when a TSPEC is added to
the connection. When STA roams to a new AP, TSPEC is negotiated with
that AP, firmware is programmed to handle WMM access classes but
HDD is not notified of this change. This problem shows up only in
non-FT roaming. Ensure that AC flows are reinitialized after roaming.

CRs-Fixed: 2003210
Change-Id: I7b9e07cffa90eb966c4a23ff4c4db420fb0122fe

core/sme/src/qos/sme_qos.c

@@ -4410,6 +4410,9 @@ QDF_STATUS sme_qos_process_reassoc_req_ev(tpAniSirGlobal pMac, uint8_t sessionId
 	sme_QosSessionInfo *pSession;
 	sme_QosACInfo *pACInfo;
 	sme_QosEdcaAcType ac;
+	sme_QosFlowInfoEntry *flow_info = NULL;
+	tListElem *entry = NULL;
+
 	QDF_TRACE(QDF_MODULE_ID_SME, QDF_TRACE_LEVEL_INFO_HIGH,
 		  "%s: %d: invoked on session %d",
 		  __func__, __LINE__, sessionId);
@@ -4446,6 +4449,34 @@ QDF_STATUS sme_qos_process_reassoc_req_ev(tpAniSirGlobal pMac, uint8_t sessionId
 					 sessionId);
 			return QDF_STATUS_E_FAILURE;
 		}
+
+		/*
+		 * Now change reason and HO renewal of
+		 * all the flow in this session only
+		 */
+		entry = csr_ll_peek_head(&sme_qos_cb.flow_list, false);
+		if (!entry) {
+			QDF_TRACE(QDF_MODULE_ID_SME, QDF_TRACE_LEVEL_WARN,
+				FL("Flow List empty, nothing to update"));
+			return QDF_STATUS_E_FAILURE;
+		}
+
+		do {
+			flow_info = GET_BASE_ADDR(entry, sme_QosFlowInfoEntry,
+						  link);
+			if (sessionId == flow_info->sessionId) {
+				QDF_TRACE(QDF_MODULE_ID_SME,
+					  QDF_TRACE_LEVEL_INFO_HIGH,
+					  FL("Changing FlowID %d reason to"
+					     " SETUP and HO renewal to true"),
+					  flow_info->QosFlowID);
+				flow_info->reason = SME_QOS_REASON_SETUP;
+				flow_info->hoRenewal = true;
+			}
+			entry = csr_ll_next(&sme_qos_cb.flow_list, entry,
+					    false);
+		} while (entry);
+
 		/* buffer the existing flows to be renewed after handoff is done */
 		sme_qos_buffer_existing_flows(pMac, sessionId);
 		/* clean up the control block partially for handoff */