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-rw-r--r--package/kernel/mac80211/patches/subsys/332-mac80211-fix-regression-in-sta-connection-monitor.patch42
1 files changed, 27 insertions, 15 deletions
diff --git a/package/kernel/mac80211/patches/subsys/332-mac80211-fix-regression-in-sta-connection-monitor.patch b/package/kernel/mac80211/patches/subsys/332-mac80211-fix-regression-in-sta-connection-monitor.patch
index 787883e217..72b6ed56c4 100644
--- a/package/kernel/mac80211/patches/subsys/332-mac80211-fix-regression-in-sta-connection-monitor.patch
+++ b/package/kernel/mac80211/patches/subsys/332-mac80211-fix-regression-in-sta-connection-monitor.patch
@@ -2,25 +2,37 @@ From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 21 Sep 2020 17:43:06 +0200
Subject: [PATCH] mac80211: fix regression in sta connection monitor
-When the nulldata frame was acked, the probe send count needs to be reset,
-otherwise it will keep increasing until the connection is considered dead,
-even though it fine.
+When a frame was acked and probe frames were sent, the connection monitoring
+needs to be reset, otherwise it will keep probing until the connection is
+considered dead, even though frames have been acked in the mean time.
Fixes: 9abf4e49830d ("mac80211: optimize station connection monitor")
Reported-by: Georgi Valkov <gvalkov@abv.bg>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
---- a/net/mac80211/mlme.c
-+++ b/net/mac80211/mlme.c
-@@ -2508,7 +2508,9 @@ void ieee80211_sta_tx_notify(struct ieee
- !sdata->u.mgd.probe_send_count)
- return;
+--- a/net/mac80211/status.c
++++ b/net/mac80211/status.c
+@@ -1129,6 +1129,8 @@ void ieee80211_tx_status_ext(struct ieee
+ noack_success = !!(info->flags & IEEE80211_TX_STAT_NOACK_TRANSMITTED);
-- if (!ack)
-+ if (ack)
-+ sdata->u.mgd.probe_send_count = 0;
-+ else
- sdata->u.mgd.nullfunc_failed = true;
- ieee80211_queue_work(&sdata->local->hw, &sdata->work);
- }
+ if (pubsta) {
++ struct ieee80211_sub_if_data *sdata = sta->sdata;
++
+ if (!acked && !noack_success)
+ sta->status_stats.retry_failed++;
+ sta->status_stats.retry_count += retry_count;
+@@ -1143,6 +1145,13 @@ void ieee80211_tx_status_ext(struct ieee
+ /* Track when last packet was ACKed */
+ sta->status_stats.last_pkt_time = jiffies;
+
++ /* Reset connection monitor */
++ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
++ unlikely(sdata->u.mgd.probe_send_count > 0)) {
++ sdata->u.mgd.probe_send_count = 0;
++ ieee80211_queue_work(&local->hw, &sdata->work);
++ }
++
+ if (info->status.is_valid_ack_signal) {
+ sta->status_stats.last_ack_signal =
+ (s8)info->status.ack_signal;