qcacld-3.0: Move channel switch progress variable to ap context

The variable is used in SAP/P2P-GO modes, so move this variable
to ap_ctx.
Existing callers are moved to deflink pointer.

Change-Id: I9acc20d3fb397c241adaf85daecff099cc236897
CRs-Fixed: 3452166

core/hdd/inc/wlan_hdd_main.h

@@ -807,6 +807,7 @@ struct hdd_fw_txrx_stats {
  * @vendor_acs_timer_initialized: Is @vendor_acs_timer initialized?
  * @bss_stop_reason: Reason why the BSS was stopped
  * @acs_in_progress: In progress acs flag for an adapter
+ * @ch_switch_in_progress: channel change in progress or not
  * @client_count: client count per dot11_mode
  * @country_ie_updated: country ie is updated or not by hdd hostapd
  * @during_auth_offload: auth mgmt frame is offloading to hostapd
@@ -828,6 +829,7 @@ struct hdd_ap_ctx {
 	bool vendor_acs_timer_initialized;
 	enum bss_stop_reason bss_stop_reason;
 	qdf_atomic_t acs_in_progress;
+	qdf_atomic_t ch_switch_in_progress;
 	uint16_t client_count[QCA_WLAN_802_11_MODE_INVALID];
 	bool country_ie_updated;
 	bool during_auth_offload;
@@ -1092,7 +1094,6 @@ struct wlan_hdd_tx_power {
  * @cache_sta_count: number of currently cached stations
  * @wapi_info:
  * @sap_stop_bss_work:
- * @ch_switch_in_progress:
  * @tsf: structure containing tsf related information
  * @mc_addr_list:
  * @addr_filter_pattern:
@@ -1241,8 +1242,6 @@ struct hdd_adapter {
 
 	struct work_struct  sap_stop_bss_work;
 
-	qdf_atomic_t ch_switch_in_progress;
-
 #ifdef WLAN_FEATURE_TSF
 	struct hdd_vdev_tsf tsf;
 #endif

core/hdd/src/wlan_hdd_hostapd.c

@@ -2159,7 +2159,7 @@ QDF_STATUS hdd_hostapd_sap_event_cb(struct sap_event *sap_event,
 		hostapd_state->qdf_status =
 			sap_event->sapevt.sapStartBssCompleteEvent.status;
 
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 		wlansap_get_dfs_ignore_cac(mac_handle, &ignoreCAC);
 		if (!policy_mgr_get_dfs_master_dynamic_enabled(
 				hdd_ctx->psoc, adapter->deflink->vdev_id))
@@ -2394,7 +2394,7 @@ QDF_STATUS hdd_hostapd_sap_event_cb(struct sap_event *sap_event,
 			hdd_debug("Sent CAC start to user space");
 		}
 
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 		hdd_stop_tsf_sync(adapter);
 		break;
 	case eSAP_DFS_CAC_INTERRUPTED:
@@ -3057,7 +3057,7 @@ QDF_STATUS hdd_hostapd_sap_event_cb(struct sap_event *sap_event,
 		 * roaming once channel change process (success/failure)
 		 * is completed
 		 */
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 		policy_mgr_set_chan_switch_complete_evt(hdd_ctx->psoc);
 		wlan_hdd_enable_roaming(adapter,
 					RSO_SAP_CHANNEL_CHANGE);
@@ -3380,6 +3380,7 @@ int hdd_softap_set_channel_change(struct net_device *dev, int target_chan_freq,
 	struct hdd_adapter *sta_adapter;
 	struct hdd_station_ctx *sta_ctx;
 	struct sap_context *sap_ctx;
+	struct hdd_ap_ctx *ap_ctx;
 	uint8_t conc_rule1 = 0;
 	uint8_t  sta_sap_scc_on_dfs_chnl;
 	bool is_p2p_go_session = false;
@@ -3403,6 +3404,8 @@ int hdd_softap_set_channel_change(struct net_device *dev, int target_chan_freq,
 	sap_ctx = WLAN_HDD_GET_SAP_CTX_PTR(adapter->deflink);
 	if (!sap_ctx)
 		return -EINVAL;
+
+	ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(adapter->deflink);
 	/*
 	 * If sta connection is in progress do not allow SAP channel change from
 	 * user space as it may change the HW mode requirement, for which sta is
@@ -3509,7 +3512,7 @@ int hdd_softap_set_channel_change(struct net_device *dev, int target_chan_freq,
 	 * once the channel change is completed and SAP will
 	 * post eSAP_START_BSS_EVENT success event to HDD.
 	 */
-	if (qdf_atomic_inc_return(&adapter->ch_switch_in_progress) > 1) {
+	if (qdf_atomic_inc_return(&ap_ctx->ch_switch_in_progress) > 1) {
 		hdd_err("Channel switch in progress!!");
 		return -EBUSY;
 	}
@@ -3537,7 +3540,7 @@ int hdd_softap_set_channel_change(struct net_device *dev, int target_chan_freq,
 				forced,
 				sap_ctx->csa_reason)) {
 		hdd_err("Channel switch failed due to concurrency check failure");
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 		return -EINVAL;
 	}
 
@@ -3549,7 +3552,7 @@ int hdd_softap_set_channel_change(struct net_device *dev, int target_chan_freq,
 	if (sme_is_any_session_in_middle_of_roaming(hdd_ctx->mac_handle) ||
 	    hdd_is_roaming_in_progress(hdd_ctx)) {
 		hdd_info("Channel switch not allowed as reassoc in progress");
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 		return -EINVAL;
 	}
 	/* Disable Roaming on all adapters before doing channel change */
@@ -3561,7 +3564,7 @@ int hdd_softap_set_channel_change(struct net_device *dev, int target_chan_freq,
 
 	vdev = hdd_objmgr_get_vdev_by_user(adapter->deflink, WLAN_OSIF_ID);
 	if (!vdev) {
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 		wlan_hdd_enable_roaming(adapter, RSO_SAP_CHANNEL_CHANGE);
 		return -EINVAL;
 	}
@@ -3590,7 +3593,7 @@ int hdd_softap_set_channel_change(struct net_device *dev, int target_chan_freq,
 		 * radar found flag and also restart the netif
 		 * queues.
 		 */
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 
 		/*
 		 * If Posting of the Channel Change request fails
@@ -4393,15 +4396,18 @@ void hdd_deinit_ap_mode(struct hdd_context *hdd_ctx,
 			struct hdd_adapter *adapter,
 			bool rtnl_held)
 {
+	struct hdd_ap_ctx *ap_ctx;
+
 	hdd_enter_dev(adapter->dev);
 
+	ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(adapter->deflink);
 	if (test_bit(WMM_INIT_DONE, &adapter->event_flags)) {
 		hdd_wmm_adapter_close(adapter);
 		clear_bit(WMM_INIT_DONE, &adapter->event_flags);
 	}
-	qdf_atomic_set(&adapter->deflink->session.ap.acs_in_progress, 0);
-	if (qdf_atomic_read(&adapter->ch_switch_in_progress)) {
-		qdf_atomic_set(&adapter->ch_switch_in_progress, 0);
+	qdf_atomic_set(&ap_ctx->acs_in_progress, 0);
+	if (qdf_atomic_read(&ap_ctx->ch_switch_in_progress)) {
+		qdf_atomic_set(&ap_ctx->ch_switch_in_progress, 0);
 		policy_mgr_set_chan_switch_complete_evt(hdd_ctx->psoc);
 
 		/* Re-enable roaming on all connected STA vdev */
@@ -4487,7 +4493,7 @@ struct hdd_adapter *hdd_wlan_create_ap_dev(struct hdd_context *hdd_ctx,
 	spin_lock_init(&adapter->pause_map_lock);
 	adapter->start_time = adapter->last_time = qdf_system_ticks();
 
-	qdf_atomic_init(&adapter->ch_switch_in_progress);
+	qdf_atomic_init(&adapter->deflink->session.ap.ch_switch_in_progress);
 
 	return adapter;
 }

core/hdd/src/wlan_hdd_main.c

@@ -3812,20 +3812,25 @@ static bool hdd_is_chan_switch_in_progress(void)
 	struct hdd_context *hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
 	wlan_net_dev_ref_dbgid dbgid =
 				NET_DEV_HOLD_IS_CHAN_SWITCH_IN_PROGRESS;
+	struct hdd_ap_ctx *ap_ctx;
 
 	hdd_for_each_adapter_dev_held_safe(hdd_ctx, adapter, next_adapter,
 					   dbgid) {
-		if ((adapter->device_mode == QDF_SAP_MODE ||
-		     adapter->device_mode == QDF_P2P_GO_MODE) &&
-		    qdf_atomic_read(&adapter->ch_switch_in_progress)) {
+		if (!(adapter->device_mode == QDF_SAP_MODE ||
+		      adapter->device_mode == QDF_P2P_GO_MODE))
+			goto next_adapter;
+
+		ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(adapter->deflink);
+		if (qdf_atomic_read(&ap_ctx->ch_switch_in_progress)) {
 			hdd_debug("channel switch progress for vdev_id %d",
 				  adapter->deflink->vdev_id);
 			hdd_adapter_dev_put_debug(adapter, dbgid);
 			if (next_adapter)
-				hdd_adapter_dev_put_debug(next_adapter,
-							  dbgid);
+				hdd_adapter_dev_put_debug(next_adapter, dbgid);
+
 			return true;
 		}
+next_adapter:
 		hdd_adapter_dev_put_debug(adapter, dbgid);
 	}
 

core/hdd/src/wlan_hdd_pre_cac.c

@@ -245,19 +245,15 @@ static int __wlan_hdd_request_pre_cac(struct hdd_context *hdd_ctx,
 		return -EINVAL;
 	}
 
-	if (qdf_atomic_read(&ap_adapter->ch_switch_in_progress)) {
+	hdd_ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(ap_adapter->deflink);
+
+	if (qdf_atomic_read(&hdd_ap_ctx->ch_switch_in_progress)) {
 		hdd_err("pre cac not allowed during CSA");
 		return -EINVAL;
 	}
 
 	mac_handle = hdd_ctx->mac_handle;
 
-	hdd_ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(ap_adapter->deflink);
-	if (!hdd_ap_ctx) {
-		hdd_err("SAP context is NULL");
-		return -EINVAL;
-	}
-
 	if (wlan_reg_is_dfs_for_freq(hdd_ctx->pdev,
 				     hdd_ap_ctx->operating_chan_freq)) {
 		hdd_err("SAP is already on DFS channel:%d",