From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 2 Jun 2022 19:44:21 +0000 (+0200)
Subject: mt76: mt7615: add missing bh-disable around rx napi schedule
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e55c27ed9ccf37118b80178ec32dfed583171363;p=linux.git

mt76: mt7615: 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: Felix Fietkau <nbd@nbd.name>
---

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index bd687f7de6289..f26213c4e64cf 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -2094,8 +2094,10 @@ void mt7615_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);
 			mt76_queue_tx_cleanup(dev, mdev->q_mcu[MT_MCUQ_WM],
 					      false);