From 9ed107e0e98b7e5ee6cb0b738e83e003e543f653 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 3 Jun 2022 09:35:00 +0200 Subject: [PATCH] mt76: mt7921: add missing bh-disable around rx napi schedule napi_schedule() can call __raise_softirq_irqoff(), which can perform softirq handling, so it must not be called in a pure process context with BH enabled. Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index a630ddbf19e54..01ed779d39769 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -1538,8 +1538,10 @@ void mt7921_pm_wake_work(struct work_struct *work) mt76_connac_pm_dequeue_skbs(mphy, &dev->pm); mt76_worker_schedule(&mdev->sdio.txrx_worker); } else { + local_bh_disable(); mt76_for_each_q_rx(mdev, i) napi_schedule(&mdev->napi[i]); + local_bh_enable(); mt76_connac_pm_dequeue_skbs(mphy, &dev->pm); mt7921_mcu_tx_cleanup(dev); } -- 2.30.2