diff options
| author | Felix Fietkau <nbd@nbd.name> | 2021-09-24 17:54:40 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-10-20 10:36:39 +0200 |
| commit | 970be1dff26dc387591688a08e4c21ebd13c3fc2 (patch) | |
| tree | bb252a399b929a1cc27d4746319d68fc92bd8cd7 /drivers/net/wireless/mediatek/mt76/mt7921/mac.c | |
| parent | abe3f3da670981b6d7241c73a664ed850c8c3b9f (diff) | |
mt76: disable BH around napi_schedule() calls
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>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/mac.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index 99db8c68713f..4023e0aba3f0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -1390,10 +1390,12 @@ mt7921_mac_reset(struct mt7921_dev *dev) mt7921_wpdma_reset(dev, true); + local_bh_disable(); mt76_for_each_q_rx(&dev->mt76, i) { napi_enable(&dev->mt76.napi[i]); napi_schedule(&dev->mt76.napi[i]); } + local_bh_enable(); clear_bit(MT76_MCU_RESET, &dev->mphy.state); @@ -1418,8 +1420,11 @@ mt7921_mac_reset(struct mt7921_dev *dev) out: clear_bit(MT76_RESET, &dev->mphy.state); + local_bh_disable(); napi_enable(&dev->mt76.tx_napi); napi_schedule(&dev->mt76.tx_napi); + local_bh_enable(); + mt76_worker_enable(&dev->mt76.tx_worker); return err; |