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mac80211: update sta connection monitor regression fix

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Reset the connection monitor on all acked frames

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau
2020-09-22 13:16:18 +02:00
parent 0cfdc7d446
commit 4bd7689d85
1 changed files with 27 additions and 15 deletions
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42
package/kernel/mac80211/patches/subsys/332-mac80211-fix-regression-in-sta-connection-monitor.patch
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@@ -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;