This is a note to let you know that I've just added the patch titled
wifi: mt76: mt7921: reset msta->airtime_ac while clearing up hw value
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-mt76-mt7921-reset-msta-airtime_ac-while-clearin.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 05f3ff4db54af1c4fa5e433d745504729af7e02c
Author: Sean Wang <sean.wang@xxxxxxxxxxxx>
Date: Tue Aug 30 06:57:44 2022 +0800
wifi: mt76: mt7921: reset msta->airtime_ac while clearing up hw value
[ Upstream commit 1bf66dc31032ff5292f4d5b76436653f269fcfbd ]
We should reset mstat->airtime_ac along with clear up the entries in the
hardware WLAN table for the Rx and Rx accumulative airtime. Otherwsie, the
value msta->airtime_ac - [tx, rx]_last may be a negative and that is not
the actual airtime the device took in the last run.
Reported-by: YN Chen <YN.Chen@xxxxxxxxxxxx>
Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 7214735011d0..c9e9a533289f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -752,6 +752,7 @@ void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
mt7921_mac_wtbl_update(dev, msta->wcid.idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
+ memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
