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Date: Wed, 19 Oct 2022 10:33:12 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, YN Chen <YN.Chen@...iatek.com>, Sean Wang <sean.wang@...iatek.com>, Felix Fietkau <nbd@....name>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 6.0 705/862] wifi: mt76: mt7921: reset msta->airtime_ac while clearing up hw value From: Sean Wang <sean.wang@...iatek.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@...iatek.com> Signed-off-by: Sean Wang <sean.wang@...iatek.com> Signed-off-by: Felix Fietkau <nbd@....name> Signed-off-by: Sasha Levin <sashal@...nel.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 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); -- 2.35.1
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