Revert "wifi: mac80211: move radar detect work to sdata"

This reverts commit ce9e660ef3 ("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>
Link: https://patch.msgid.link/20240906064426.2101315-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Aditya Kumar Singh 2024-09-06 12:14:19 +05:30 committed by Johannes Berg
parent 3702a33216
commit 6241d79f00
6 changed files with 13 additions and 13 deletions

View File

@ -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);
@ -3485,7 +3485,7 @@ 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:
@ -3502,7 +3502,7 @@ 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);

View File

@ -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;

View File

@ -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:

View File

@ -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) {

View File

@ -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);

View File

@ -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;