Commit c9eb90a5 authored by John Crispin's avatar John Crispin Committed by Johannes Berg
Browse files

mac80211: MBSSID channel switch 



Trigger ieee80211_csa_finish() on the non-transmitting interfaces
when channel switch concludes on the transmitting interface.

Co-developed-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: default avatarAloka Dixit <alokad@codeaurora.org>
Signed-off-by: default avatarAloka Dixit <alokad@codeaurora.org>
Signed-off-by: default avatarJohn Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/6fde4d7f9fa387494f46a7aa4a584478dcda06f1.1645702516.git.lorenzo@kernel.org


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 2b3171c6

net/mac80211/cfg.c

+24 −2
Original line number Diff line number Diff line
@@ -3256,9 +3256,31 @@ 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);