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authorFelix Fietkau <nbd@nbd.name>2020-08-07 20:52:20 +0200
committerFelix Fietkau <nbd@nbd.name>2020-09-24 18:10:14 +0200
commit6e4f584e2be6efb57d311f4309d4f5a96fb247b8 (patch)
tree0c5ea12eabb16ce5886af41705220de016c026ed /drivers/net/wireless/mediatek/mt76/mt7615
parent2c270b0e51ad5a29cf01e1b8d3d651b185d3d3b5 (diff)
mt76: mt7615: do not do any work in napi poll after calling napi_complete_done()
Fixes a race condition where multiple tx cleanup tasks could run in parallel Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7615/dma.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
index c876eb1e1681..3b375fdf31b8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
@@ -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;
}