@@ -3464,6 +3464,7 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy,
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_chan_req chanreq = { .oper = *chandef };
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_link_data *link_data;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
@@ -3471,16 +3472,20 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy,
if (!list_empty(&local->roc_list) || local->scanning)
return -EBUSY;
+ link_data = sdata_dereference(sdata->link[link_id], sdata);
+ if (!link_data)
+ return -ENOLINK;
+
/* whatever, but channel contexts should not complain about that one */
- sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
- sdata->deflink.needed_rx_chains = local->rx_chains;
+ link_data->smps_mode = IEEE80211_SMPS_OFF;
+ link_data->needed_rx_chains = local->rx_chains;
- err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
+ err = ieee80211_link_use_channel(link_data, &chanreq,
IEEE80211_CHANCTX_SHARED);
if (err)
return err;
- wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work,
+ wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work,
msecs_to_jiffies(cac_time_ms));
return 0;
@@ -3491,16 +3496,21 @@ static void ieee80211_end_cac(struct wiphy *wiphy,
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_link_data *link_data;
lockdep_assert_wiphy(local->hw.wiphy);
list_for_each_entry(sdata, &local->interfaces, list) {
+ link_data = sdata_dereference(sdata->link[link_id], sdata);
+ if (!link_data)
+ continue;
+
wiphy_delayed_work_cancel(wiphy,
- &sdata->deflink.dfs_cac_timer_work);
+ &link_data->dfs_cac_timer_work);
- if (sdata->wdev.links[0].cac_started) {
- ieee80211_link_release_channel(&sdata->deflink);
- sdata->wdev.links[0].cac_started = false;
+ if (sdata->wdev.links[link_id].cac_started) {
+ ieee80211_link_release_channel(link_data);
+ sdata->wdev.links[link_id].cac_started = false;
}
}
}
@@ -77,6 +77,16 @@ void ieee80211_link_stop(struct ieee80211_link_data *link)
&link->color_change_finalize_work);
wiphy_work_cancel(link->sdata->local->hw.wiphy,
&link->csa.finalize_work);
+
+ if (link->sdata->wdev.links[link->link_id].cac_started) {
+ wiphy_delayed_work_cancel(link->sdata->local->hw.wiphy,
+ &link->dfs_cac_timer_work);
+ cfg80211_cac_event(link->sdata->dev,
+ &link->conf->chanreq.oper,
+ NL80211_RADAR_CAC_ABORTED,
+ GFP_KERNEL, link->link_id);
+ }
+
ieee80211_link_release_channel(link);
}
@@ -3455,20 +3455,37 @@ void ieee80211_dfs_cac_cancel(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
struct cfg80211_chan_def chandef;
+ struct ieee80211_link_data *link_data;
+ struct ieee80211_bss_conf *link_conf;
+ unsigned int link_id;
lockdep_assert_wiphy(local->hw.wiphy);
list_for_each_entry(sdata, &local->interfaces, list) {
- wiphy_delayed_work_cancel(local->hw.wiphy,
- &sdata->deflink.dfs_cac_timer_work);
+ for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS;
+ link_id++) {
+ link_data = sdata_dereference(sdata->link[link_id],
+ sdata);
+ if (!link_data)
+ continue;
+
+ wiphy_delayed_work_cancel(local->hw.wiphy,
+ &link_data->dfs_cac_timer_work);
+
+ if (!sdata->wdev.links[link_id].cac_started)
+ continue;
+
+ link_conf =
+ rcu_dereference(sdata->vif.link_conf[link_id]);
+ if (!link_conf)
+ continue;
- if (sdata->wdev.links[0].cac_started) {
- chandef = sdata->vif.bss_conf.chanreq.oper;
- ieee80211_link_release_channel(&sdata->deflink);
+ chandef = link_conf->chanreq.oper;
+ ieee80211_link_release_channel(link_data);
cfg80211_cac_event(sdata->dev,
&chandef,
NL80211_RADAR_CAC_ABORTED,
- GFP_KERNEL, 0);
+ GFP_KERNEL, link_id);
}
}
}
In order to support DFS with MLO, handle the link ID now passed from cfg80211, adjust the code to do everything per link and call the notifications to cfg80211 correctly. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> --- net/mac80211/cfg.c | 26 ++++++++++++++++++-------- net/mac80211/link.c | 10 ++++++++++ net/mac80211/util.c | 29 +++++++++++++++++++++++------ 3 files changed, 51 insertions(+), 14 deletions(-)