From: Ilan Peer <ilan.peer@intel.com>
Date: Mon, 8 Sep 2025 11:13:04 +0000 (+0300)
Subject: wifi: mac80211: Track NAN interface start/stop
X-Git-Tag: v6.12.58~166
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=522734fc807c62d2c4f6cbb6f8009b7437ab3672;p=thirdparty%2Fkernel%2Fstable.git

wifi: mac80211: Track NAN interface start/stop

[ Upstream commit 8f79d2f13dd3b0af00a5303d4ff913767dd7684e ]

In case that NAN is started, mark the device as non idle,
and set LED triggering similar to scan and ROC. Set the
device to idle once NAN is stopped.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250908140015.2711d62fce22.I9b9f826490e50967a66788d713b0eba985879873@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 2890dde9b3bf4..2df4df75f1957 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -285,6 +285,9 @@ static int ieee80211_start_nan(struct wiphy *wiphy,
 
 	lockdep_assert_wiphy(sdata->local->hw.wiphy);
 
+	if (sdata->u.nan.started)
+		return -EALREADY;
+
 	ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
 	if (ret < 0)
 		return ret;
@@ -294,12 +297,18 @@ static int ieee80211_start_nan(struct wiphy *wiphy,
 		return ret;
 
 	ret = drv_start_nan(sdata->local, sdata, conf);
-	if (ret)
+	if (ret) {
 		ieee80211_sdata_stop(sdata);
+		return ret;
+	}
 
-	sdata->u.nan.conf = *conf;
+	sdata->u.nan.started = true;
+	ieee80211_recalc_idle(sdata->local);
 
-	return ret;
+	sdata->u.nan.conf.master_pref = conf->master_pref;
+	sdata->u.nan.conf.bands = conf->bands;
+
+	return 0;
 }
 
 static void ieee80211_stop_nan(struct wiphy *wiphy,
@@ -307,8 +316,13 @@ static void ieee80211_stop_nan(struct wiphy *wiphy,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 
+	if (!sdata->u.nan.started)
+		return;
+
 	drv_stop_nan(sdata->local, sdata);
+	sdata->u.nan.started = false;
 	ieee80211_sdata_stop(sdata);
+	ieee80211_recalc_idle(sdata->local);
 }
 
 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 2f017dbbcb975..f0ac51cf66e61 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -949,11 +949,13 @@ struct ieee80211_if_mntr {
  * struct ieee80211_if_nan - NAN state
  *
  * @conf: current NAN configuration
+ * @started: true iff NAN is started
  * @func_lock: lock for @func_inst_ids
  * @function_inst_ids: a bitmap of available instance_id's
  */
 struct ieee80211_if_nan {
 	struct cfg80211_nan_conf conf;
+	bool started;
 
 	/* protects function_inst_ids */
 	spinlock_t func_lock;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 209d6ffa8e426..69a8a2c21d8df 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -108,6 +108,7 @@ static u32 __ieee80211_recalc_idle(struct ieee80211_local *local,
 {
 	bool working, scanning, active;
 	unsigned int led_trig_start = 0, led_trig_stop = 0;
+	struct ieee80211_sub_if_data *iter;
 
 	lockdep_assert_wiphy(local->hw.wiphy);
 
@@ -118,6 +119,14 @@ static u32 __ieee80211_recalc_idle(struct ieee80211_local *local,
 	working = !local->ops->remain_on_channel &&
 		  !list_empty(&local->roc_list);
 
+	list_for_each_entry(iter, &local->interfaces, list) {
+		if (iter->vif.type == NL80211_IFTYPE_NAN &&
+		    iter->u.nan.started) {
+			working = true;
+			break;
+		}
+	}
+
 	scanning = test_bit(SCAN_SW_SCANNING, &local->scanning) ||
 		   test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning);