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mt76: mt7615: do not do any work in napi poll after calling napi_complete_done()

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Fixes a race condition where multiple tx cleanup tasks could run in parallel

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau
2020-08-07 20:52:20 +02:00
parent 2c270b0e51
commit 6e4f584e2b
1 changed files with 3 additions and 5 deletions
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8
drivers/net/wireless/mediatek/mt76/mt7615/dma.c
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@@ -117,14 +117,12 @@ static int mt7615_poll_tx(struct napi_struct *napi, int budget)
mt7615_tx_cleanup(dev);
if (napi_complete_done(napi, 0))
mt7615_irq_enable(dev, MT_INT_TX_DONE_ALL);
mt7615_tx_cleanup(dev);
mt7615_pm_power_save_sched(dev);
tasklet_schedule(&dev->mt76.tx_tasklet);
if (napi_complete_done(napi, 0))
mt7615_irq_enable(dev, MT_INT_TX_DONE_ALL);
return 0;
}