[PATCH AUTOSEL 6.11 024/244] wifi: mt76: mt7915: disable tx worker during tx BA session enable/disable

Sasha Levin
2024-09-25T11:37:37Z

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 256cbd26fbafb30ba3314339106e5c594e9bd5f9 ]

Avoids firmware race condition.

Link: https://patch.msgid.link/20240827093011.18621-7-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 2185cd24e2e1c..2f4755820b3cd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -690,13 +690,17 @@ int mt7915_mcu_add_tx_ba(struct mt7915_dev *dev,
{
struct mt7915_sta *msta = (struct mt7915_sta *)params->sta->drv_priv;
struct mt7915_vif *mvif = msta->vif;
+ int ret;

+ mt76_worker_disable(&dev->mt76.tx_worker);
if (enable && !params->amsdu)
msta->wcid.amsdu = false;
+ ret = mt76_connac_mcu_sta_ba(&dev->mt76, &mvif->mt76, params,
+ MCU_EXT_CMD(STA_REC_UPDATE),
+ enable, true);
+ mt76_worker_enable(&dev->mt76.tx_worker);

- return mt76_connac_mcu_sta_ba(&dev->mt76, &mvif->mt76, params,
- MCU_EXT_CMD(STA_REC_UPDATE),
- enable, true);
+ return ret;
}

int mt7915_mcu_add_rx_ba(struct mt7915_dev *dev,
--
2.43.0