From: John Crispin <john@xxxxxxxxxxx>
Trigger ieee80211_csa_finish() on the non-transmitting interfaces
when channel switch concludes on the transmitting interface.
Co-developed-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Co-developed-by: Aloka Dixit <alokad@xxxxxxxxxxxxxx>
Signed-off-by: Aloka Dixit <alokad@xxxxxxxxxxxxxx>
Signed-off-by: John Crispin <john@xxxxxxxxxxx>
---
net/mac80211/cfg.c | 26 ++++++++++++++++++++++++--
1 file changed, 24 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index f7324a6d4a78..464d2896fbbc 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3251,9 +3251,31 @@ cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
void ieee80211_csa_finish(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_local *local = sdata->local;
- ieee80211_queue_work(&sdata->local->hw,
- &sdata->csa_finalize_work);
+ rcu_read_lock();
+
+ if (vif->mbssid_tx_vif == vif) {
+ /* Trigger ieee80211_csa_finish() on the non-transmitting
+ * interfaces when channel switch is received on
+ * transmitting interface
+ */
+ struct ieee80211_sub_if_data *iter;
+
+ list_for_each_entry_rcu(iter, &local->interfaces, list) {
+ if (!ieee80211_sdata_running(iter))
+ continue;
+
+ if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
+ continue;
+
+ ieee80211_queue_work(&iter->local->hw,
+ &iter->csa_finalize_work);
+ }
+ }
+ ieee80211_queue_work(&local->hw, &sdata->csa_finalize_work);
+
+ rcu_read_unlock();
}
EXPORT_SYMBOL(ieee80211_csa_finish);
--
2.35.1
