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mt76: disable BH around napi_schedule() calls

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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: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2021-09-24 17:54:42 +02:00
parent d8b5e42c9a
commit 8ee6446075
9 changed files with 30 additions and 4 deletions
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mt76x2/pci.c
+3
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@@ -149,12 +149,15 @@ mt76x2e_resume(struct pci_dev *pdev)
pci_restore_state(pdev);
mt76_worker_enable(&mdev->tx_worker);
local_bh_disable();
mt76_for_each_q_rx(mdev, i) {
napi_enable(&mdev->napi[i]);
napi_schedule(&mdev->napi[i]);
}
napi_enable(&mdev->tx_napi);
napi_schedule(&mdev->tx_napi);
local_bh_enable();
return mt76x2_resume_device(dev);
}