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53 lines
1.7 KiB
Diff
53 lines
1.7 KiB
Diff
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From: John Crispin <john@phrozen.org>
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Date: Thu, 24 Feb 2022 12:54:59 +0100
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Subject: [PATCH] mac80211: MBSSID channel switch
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Trigger ieee80211_csa_finish() on the non-transmitting interfaces
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when channel switch concludes on the transmitting interface.
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Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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Co-developed-by: Aloka Dixit <alokad@codeaurora.org>
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Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
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Signed-off-by: John Crispin <john@phrozen.org>
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Link: https://lore.kernel.org/r/6fde4d7f9fa387494f46a7aa4a584478dcda06f1.1645702516.git.lorenzo@kernel.org
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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--- a/net/mac80211/cfg.c
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+++ b/net/mac80211/cfg.c
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@@ -3247,9 +3247,31 @@ cfg80211_beacon_dup(struct cfg80211_beac
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void ieee80211_csa_finish(struct ieee80211_vif *vif)
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{
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struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
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+ struct ieee80211_local *local = sdata->local;
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- ieee80211_queue_work(&sdata->local->hw,
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- &sdata->csa_finalize_work);
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+ rcu_read_lock();
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+
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+ if (vif->mbssid_tx_vif == vif) {
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+ /* Trigger ieee80211_csa_finish() on the non-transmitting
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+ * interfaces when channel switch is received on
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+ * transmitting interface
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+ */
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+ struct ieee80211_sub_if_data *iter;
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+
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+ list_for_each_entry_rcu(iter, &local->interfaces, list) {
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+ if (!ieee80211_sdata_running(iter))
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+ continue;
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+
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+ if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
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+ continue;
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+
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+ ieee80211_queue_work(&iter->local->hw,
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+ &iter->csa_finalize_work);
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+ }
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+ }
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+ ieee80211_queue_work(&local->hw, &sdata->csa_finalize_work);
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+
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+ rcu_read_unlock();
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}
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EXPORT_SYMBOL(ieee80211_csa_finish);
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