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mac80211: MBSSID channel switch

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

Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/6fde4d7f9fa387494f46a7aa4a584478dcda06f1.1645702516.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
John Crispin 2022-02-24 12:54:59 +01:00 committed by Johannes Berg
parent 2b3171c6fe
commit c9eb90a568
1 changed files with 24 additions and 2 deletions
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26
net/mac80211/cfg.c
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@ -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);