qcacld-3.0: Update ll_stats request pending flag properly

In the current driver implementation, host honors LL_STATS request
even in disconnected state. But in disconnected state, the ll_stats
request pending flag is not updated properly, which results in allowing
multiple LL_STATS requests being sent to FW. So, to avoid this issue,
update the flag properly.

Change-Id: I318455492dc69bd540044b593a405eacdf185ff1
CRs-Fixed: 3339867

core/hdd/inc/wlan_hdd_main.h

@@ -611,10 +611,10 @@ struct hdd_stats {
 	struct hdd_peer_stats peer_stats;
 	struct hdd_pmf_stats hdd_pmf_stats;
 	struct pmf_bcn_protect_stats bcn_protect_stats;
+	qdf_atomic_t is_ll_stats_req_pending;
 
 #ifdef FEATURE_CLUB_LL_STATS_AND_GET_STATION
 	uint32_t sta_stats_cached_timestamp;
-	bool is_ll_stats_req_in_progress;
 #endif
 };
 

core/hdd/src/wlan_hdd_main.c

@@ -1468,7 +1468,6 @@ hdd_update_feature_cfg_club_get_sta_in_ll_stats_req(
 static void
 hdd_init_get_sta_in_ll_stats_config(struct hdd_adapter *adapter)
 {
-	adapter->hdd_stats.is_ll_stats_req_in_progress = false;
 	adapter->hdd_stats.sta_stats_cached_timestamp = 0;
 }
 #else
@@ -6085,6 +6084,7 @@ hdd_alloc_station_adapter(struct hdd_context *hdd_ctx, tSirMacAddr mac_addr,
 	adapter->start_time = qdf_system_ticks();
 	adapter->last_time = adapter->start_time;
 
+	qdf_atomic_init(&adapter->hdd_stats.is_ll_stats_req_pending);
 	hdd_init_get_sta_in_ll_stats_config(adapter);
 
 	return adapter;

core/hdd/src/wlan_hdd_stats.c

@@ -2042,6 +2042,18 @@ static void wlan_hdd_dealloc_ll_stats(void *priv)
 	qdf_list_destroy(&ll_stats_priv->ll_stats_q);
 }
 
+static QDF_STATUS
+wlan_hdd_set_ll_stats_request_pending(struct hdd_adapter *adapter)
+{
+	if (qdf_atomic_read(&adapter->hdd_stats.is_ll_stats_req_pending)) {
+		hdd_nofl_debug("Previous ll_stats request is in progress");
+		return QDF_STATUS_E_ALREADY;
+	}
+
+	qdf_atomic_set(&adapter->hdd_stats.is_ll_stats_req_pending, 1);
+	return QDF_STATUS_SUCCESS;
+}
+
 #ifdef FEATURE_CLUB_LL_STATS_AND_GET_STATION
 /**
  * cache_station_stats_cb() - cache_station_stats_cb callback function
@@ -2132,12 +2144,6 @@ wlan_hdd_set_station_stats_request_pending(struct hdd_adapter *adapter,
 	if (!vdev)
 		return QDF_STATUS_E_INVAL;
 
-	if (adapter->hdd_stats.is_ll_stats_req_in_progress) {
-		hdd_err("Previous ll_stats request is in progress");
-		hdd_objmgr_put_vdev_by_user(vdev, WLAN_OSIF_STATS_ID);
-		return QDF_STATUS_E_ALREADY;
-	}
-
 	info.cookie = adapter;
 	info.u.get_station_stats_cb = cache_station_stats_cb;
 	info.vdev_id = adapter->vdev_id;
@@ -2151,6 +2157,7 @@ wlan_hdd_set_station_stats_request_pending(struct hdd_adapter *adapter,
 	}
 
 	info.pdev_id = wlan_objmgr_pdev_get_pdev_id(wlan_vdev_get_pdev(vdev));
+
 	peer = wlan_objmgr_vdev_try_get_bsspeer(vdev, WLAN_OSIF_STATS_ID);
 	if (!peer) {
 		osif_err("peer is null");
@@ -2158,14 +2165,13 @@ wlan_hdd_set_station_stats_request_pending(struct hdd_adapter *adapter,
 		return QDF_STATUS_E_INVAL;
 	}
 
-	adapter->hdd_stats.is_ll_stats_req_in_progress = true;
-
 	qdf_mem_copy(info.peer_mac_addr, peer->macaddr, QDF_MAC_ADDR_SIZE);
 
 	wlan_objmgr_peer_release_ref(peer, WLAN_OSIF_STATS_ID);
 
 	ucfg_mc_cp_stats_set_pending_req(wlan_vdev_get_psoc(vdev),
 					 TYPE_STATION_STATS, &info);
+
 	hdd_objmgr_put_vdev_by_user(vdev, WLAN_OSIF_STATS_ID);
 	return QDF_STATUS_SUCCESS;
 }
@@ -2181,8 +2187,6 @@ wlan_hdd_reset_station_stats_request_pending(struct wlan_objmgr_psoc *psoc,
 	if (!adapter->hdd_ctx->is_get_station_clubbed_in_ll_stats_req)
 		return;
 
-	adapter->hdd_stats.is_ll_stats_req_in_progress = false;
-
 	status = ucfg_mc_cp_stats_get_pending_req(psoc, TYPE_STATION_STATS,
 						  &last_req);
 	if (QDF_IS_STATUS_ERROR(status)) {
@@ -2255,10 +2259,14 @@ static int wlan_hdd_send_ll_stats_req(struct hdd_adapter *adapter,
 
 	hdd_enter_dev(adapter->dev);
 
-	status = wlan_hdd_set_station_stats_request_pending(adapter, req);
-	if (status == QDF_STATUS_E_ALREADY)
+	status = wlan_hdd_set_ll_stats_request_pending(adapter);
+	if (QDF_IS_STATUS_ERROR(status))
 		return qdf_status_to_os_return(status);
 
+	status = wlan_hdd_set_station_stats_request_pending(adapter, req);
+	if (QDF_IS_STATUS_ERROR(status))
+		hdd_nofl_debug("Requesting LL_STATS only");
+
 	/*
 	 * FW can send radio stats with multiple events and for the first event
 	 * host allocates memory in wma and processes the events, there is a
@@ -2333,6 +2341,7 @@ static int wlan_hdd_send_ll_stats_req(struct hdd_adapter *adapter,
 	}
 	qdf_list_destroy(&priv->ll_stats_q);
 exit:
+	qdf_atomic_set(&adapter->hdd_stats.is_ll_stats_req_pending, 0);
 	wlan_hdd_reset_station_stats_request_pending(hdd_ctx->psoc, adapter);
 	hdd_exit();
 	osif_request_put(request);