qcacld-3.0: Release TDLS wakelock upon peer teardown

Currently TDLS module acquires WIFI_POWER_EVENT_WAKELOCK_TDLS
wakelock and prevents run time suspend when TDLS is enabled for
a peer. While releasing the wakelock and allowing suspend, it
checks for the connected peer count in tdls_update_pmo_status().
But the peer count is not decremented here yet.

Below is the current call sequence:
tdls_disable_offchan_and_teardown_links()
	-> 1. Call tdls_reset_peer() -> this calls
	      tdls_set_peer_link_status() ->
	      tdls_update_pmo_status()
	-> 2. tdls_decrement_peer_count() - Sets the
	      connected peer count to 0

Update the sequence as below:
call tdls_decrement_peer_count() first and then call
tdls_reset_peer().

CRs-Fixed: 3735021
Change-Id: Idf91a0c96c9660df466143f8ac115f694b3070d2

components/tdls/core/src/wlan_tdls_ct.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -665,10 +665,11 @@ void tdls_indicate_teardown(struct tdls_vdev_priv_obj *tdls_vdev,
 		return;
 	}
 
-	tdls_set_peer_link_status(curr_peer,
-				  TDLS_LINK_TEARING,
+	tdls_set_peer_link_status(curr_peer, TDLS_LINK_TEARING,
 				  TDLS_LINK_UNSPECIFIED);
-	tdls_notice("Teardown reason %d", reason);
+	tdls_notice("vdev:%d Teardown reason %d peer:" QDF_MAC_ADDR_FMT,
+		    wlan_vdev_get_id(tdls_vdev->vdev), reason,
+		    QDF_MAC_ADDR_REF(curr_peer->peer_mac.bytes));
 
 	if (tdls_soc->tdls_dp_vdev_update)
 		tdls_soc->tdls_dp_vdev_update(
@@ -1561,13 +1562,14 @@ void tdls_disable_offchan_and_teardown_links(
 		tdls_indicate_teardown(tdls_vdev, curr_peer,
 				       TDLS_TEARDOWN_PEER_UNSPEC_REASON);
 
+		tdls_decrement_peer_count(vdev, tdls_soc);
+
 		/*
 		 * Del Sta happened already as part of tdls_delete_all_tdls_peers
 		 * Hence clear tdls vdev data structure.
 		 */
 		tdls_reset_peer(tdls_vdev, curr_peer->peer_mac.bytes);
 
-		tdls_decrement_peer_count(vdev, tdls_soc);
 		tdls_soc->tdls_conn_info[staidx].valid_entry = false;
 		tdls_soc->tdls_conn_info[staidx].session_id = 255;
 		tdls_soc->tdls_conn_info[staidx].index =

components/tdls/core/src/wlan_tdls_peer.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -759,6 +759,7 @@ static void tdls_prevent_suspend(struct tdls_soc_priv_obj *tdls_soc)
 			      WIFI_POWER_EVENT_WAKELOCK_TDLS);
 	qdf_runtime_pm_prevent_suspend(&tdls_soc->runtime_lock);
 	tdls_soc->is_prevent_suspend = true;
+	tdls_debug("Acquire WIFI_POWER_EVENT_WAKELOCK_TDLS");
 }
 
 /**
@@ -778,6 +779,7 @@ static void tdls_allow_suspend(struct tdls_soc_priv_obj *tdls_soc)
 			      WIFI_POWER_EVENT_WAKELOCK_TDLS);
 	qdf_runtime_pm_allow_suspend(&tdls_soc->runtime_lock);
 	tdls_soc->is_prevent_suspend = false;
+	tdls_debug("Release WIFI_POWER_EVENT_WAKELOCK_TDLS");
 }
 
 /**
@@ -865,6 +867,21 @@ void tdls_set_link_status(struct tdls_vdev_priv_obj *vdev_obj,
 	}
 }
 
+static inline char *
+tdls_link_status_str(enum tdls_link_state link_status)
+{
+	switch (link_status) {
+	CASE_RETURN_STRING(TDLS_LINK_IDLE);
+	CASE_RETURN_STRING(TDLS_LINK_DISCOVERING);
+	CASE_RETURN_STRING(TDLS_LINK_DISCOVERED);
+	CASE_RETURN_STRING(TDLS_LINK_CONNECTING);
+	CASE_RETURN_STRING(TDLS_LINK_CONNECTED);
+	CASE_RETURN_STRING(TDLS_LINK_TEARING);
+	default:
+		return "UNKNOWN";
+	}
+}
+
 void tdls_set_peer_link_status(struct tdls_peer *peer,
 			       enum tdls_link_state link_status,
 			       enum tdls_link_state_reason link_reason)
@@ -878,12 +895,14 @@ void tdls_set_peer_link_status(struct tdls_peer *peer,
 	enum tdls_link_state old_status;
 
 	vdev_obj = peer->vdev_priv;
-	tdls_debug("vdev %d state %d reason %d peer:" QDF_MAC_ADDR_FMT,
-		   wlan_vdev_get_id(vdev_obj->vdev), link_status, link_reason,
-		   QDF_MAC_ADDR_REF(peer->peer_mac.bytes));
 
 	old_status = peer->link_status;
 	peer->link_status = link_status;
+	tdls_debug("vdev:%d new state: %s old state:%s reason %d peer:" QDF_MAC_ADDR_FMT,
+		   wlan_vdev_get_id(vdev_obj->vdev),
+		   tdls_link_status_str(link_status),
+		   tdls_link_status_str(old_status), link_reason,
+		   QDF_MAC_ADDR_REF(peer->peer_mac.bytes));
 	tdls_update_pmo_status(vdev_obj, old_status, link_status);
 
 	if (link_status >= TDLS_LINK_DISCOVERED)