openwrt/package/kernel/mac80211/patches/subsys/332-mac80211-fix-regression-in-sta-connection-monitor.patch
Felix Fietkau 4bd7689d85 mac80211: update sta connection monitor regression fix
Reset the connection monitor on all acked frames

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-23 08:39:26 +02:00

39 lines
1.4 KiB
Diff

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 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/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 (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;