diff mbox series

[v4,1/8] Revert "wifi: mac80211: move radar detect work to sdata"

Message ID 20240830060918.2418701-2-quic_adisi@quicinc.com (mailing list archive)
State Changes Requested
Delegated to: Johannes Berg
Headers show
Series wifi: cfg80211/mac80211: add DFS support for MLO | expand

Commit Message

Aditya Kumar Singh Aug. 30, 2024, 6:09 a.m. UTC 
This reverts commit ce9e660ef32e ("wifi: mac80211: move radar detect work to sdata").

To enable radar detection with MLO, it’s essential to handle it on a
per-link basis. This is because when using MLO, multiple links may already
be active and beaconing. In this scenario, another link should be able to
initiate a radar detection. Also, if underlying links are associated with
different hardware devices but grouped together for MLO, they could
potentially start radar detection simultaneously. Therefore, it makes
sense to manage radar detection settings separately for each link by moving
them back to a per-link data structure.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
---
 net/mac80211/cfg.c         | 6 +++---
 net/mac80211/ieee80211_i.h | 3 +--
 net/mac80211/iface.c       | 4 +---
 net/mac80211/link.c        | 2 ++
 net/mac80211/mlme.c        | 9 +++++----
 net/mac80211/util.c        | 2 +-
 6 files changed, 13 insertions(+), 13 deletions(-)
diff mbox series

Patch

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 85cb71de370f..8b4f32c01701 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1664,7 +1664,7 @@  static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
 
 	if (sdata->wdev.cac_started) {
 		chandef = link_conf->chanreq.oper;
-		wiphy_delayed_work_cancel(wiphy, &sdata->dfs_cac_timer_work);
+		wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
 		cfg80211_cac_event(sdata->dev, &chandef,
 				   NL80211_RADAR_CAC_ABORTED,
 				   GFP_KERNEL);
@@ -3482,7 +3482,7 @@  static int ieee80211_start_radar_detection(struct wiphy *wiphy,
 	if (err)
 		goto out_unlock;
 
-	wiphy_delayed_work_queue(wiphy, &sdata->dfs_cac_timer_work,
+	wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work,
 				 msecs_to_jiffies(cac_time_ms));
 
  out_unlock:
@@ -3499,7 +3499,7 @@  static void ieee80211_end_cac(struct wiphy *wiphy,
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		wiphy_delayed_work_cancel(wiphy,
-					  &sdata->dfs_cac_timer_work);
+					  &sdata->deflink.dfs_cac_timer_work);
 
 		if (sdata->wdev.cac_started) {
 			ieee80211_link_release_channel(&sdata->deflink);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 6305c4e9cca1..9c2c826ef90c 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1067,6 +1067,7 @@  struct ieee80211_link_data {
 	int ap_power_level; /* in dBm */
 
 	bool radar_required;
+	struct wiphy_delayed_work dfs_cac_timer_work;
 
 	union {
 		struct ieee80211_link_data_managed mgd;
@@ -1165,8 +1166,6 @@  struct ieee80211_sub_if_data {
 	struct ieee80211_link_data deflink;
 	struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
 
-	struct wiphy_delayed_work dfs_cac_timer_work;
-
 	/* for ieee80211_set_active_links_async() */
 	struct wiphy_work activate_links_work;
 	u16 desired_active_links;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index b4ad66af3af3..7bb71ac52277 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -550,7 +550,7 @@  static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 	wiphy_work_cancel(local->hw.wiphy,
 			  &sdata->deflink.color_change_finalize_work);
 	wiphy_delayed_work_cancel(local->hw.wiphy,
-				  &sdata->dfs_cac_timer_work);
+				  &sdata->deflink.dfs_cac_timer_work);
 
 	if (sdata->wdev.cac_started) {
 		chandef = sdata->vif.bss_conf.chanreq.oper;
@@ -1729,8 +1729,6 @@  static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 	wiphy_work_init(&sdata->work, ieee80211_iface_work);
 	wiphy_work_init(&sdata->activate_links_work,
 			ieee80211_activate_links_work);
-	wiphy_delayed_work_init(&sdata->dfs_cac_timer_work,
-				ieee80211_dfs_cac_timer_work);
 
 	switch (type) {
 	case NL80211_IFTYPE_P2P_GO:
diff --git a/net/mac80211/link.c b/net/mac80211/link.c
index 1a211b8d4057..b4378969cbf1 100644
--- a/net/mac80211/link.c
+++ b/net/mac80211/link.c
@@ -45,6 +45,8 @@  void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
 			  ieee80211_color_collision_detection_work);
 	INIT_LIST_HEAD(&link->assigned_chanctx_list);
 	INIT_LIST_HEAD(&link->reserved_chanctx_list);
+	wiphy_delayed_work_init(&link->dfs_cac_timer_work,
+				ieee80211_dfs_cac_timer_work);
 
 	if (!deflink) {
 		switch (sdata->vif.type) {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 6e99db7addf1..cb7817c42366 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3031,15 +3031,16 @@  void ieee80211_dynamic_ps_timer(struct timer_list *t)
 
 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work)
 {
-	struct ieee80211_sub_if_data *sdata =
-		container_of(work, struct ieee80211_sub_if_data,
+	struct ieee80211_link_data *link =
+		container_of(work, struct ieee80211_link_data,
 			     dfs_cac_timer_work.work);
-	struct cfg80211_chan_def chandef = sdata->vif.bss_conf.chanreq.oper;
+	struct cfg80211_chan_def chandef = link->conf->chanreq.oper;
+	struct ieee80211_sub_if_data *sdata = link->sdata;
 
 	lockdep_assert_wiphy(sdata->local->hw.wiphy);
 
 	if (sdata->wdev.cac_started) {
-		ieee80211_link_release_channel(&sdata->deflink);
+		ieee80211_link_release_channel(link);
 		cfg80211_cac_event(sdata->dev, &chandef,
 				   NL80211_RADAR_CAC_FINISHED,
 				   GFP_KERNEL);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ba61de90ba35..dc53590b2398 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3476,7 +3476,7 @@  void ieee80211_dfs_cac_cancel(struct ieee80211_local *local)
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		wiphy_delayed_work_cancel(local->hw.wiphy,
-					  &sdata->dfs_cac_timer_work);
+					  &sdata->deflink.dfs_cac_timer_work);
 
 		if (sdata->wdev.cac_started) {
 			chandef = sdata->vif.bss_conf.chanreq.oper;