* [PATCH AUTOSEL 5.15 23/46] wifi: mt76: mt7921: reset msta->airtime_ac while clearing up hw value
[not found] <20221009221912.1217372-1-sashal@kernel.org>
@ 2022-10-09 22:18 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2022-10-09 22:18 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sean Wang, YN Chen, Felix Fietkau, Sasha Levin, lorenzo,
ryder.lee, kvalo, davem, edumazet, kuba, pabeni, matthias.bgg,
johannes.berg, deren.wu, linux-wireless, netdev,
linux-arm-kernel, linux-mediatek
From: Sean Wang <sean.wang@mediatek.com>
[ 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@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7921/main.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 6cb65391427f..7b48df301079 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -627,6 +627,7 @@ 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);
--
2.35.1
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