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mt76: mt7921: add missing bh-disable around rx napi schedule

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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 <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2022-06-17 12:14:22 +02:00
committed by Felix Fietkau
parent 4554ee652c
commit a3f1d6ccf3
1 changed files with 2 additions and 0 deletions
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mt7921/mac.c
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@@ -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);
}