From 3e0705acd4de7821d42bea7fb01938ff05fd4d58 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 7 Oct 2019 12:33:39 +0200
Subject: [PATCH] mt76: avoid enabling interrupt if NAPI poll is still pending
Git-commit: 3e0705acd4de7821d42bea7fb01938ff05fd4d58
Patch-mainline: v5.5-rc1
References: jsc#SLE-13430
if napi_complete() returns false, it means that polling is still pending.
Interrupts should not fire until the polling is no longer scheduled
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/mediatek/mt76/dma.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 6442a45ba303..3de744fb5e7a 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -539,10 +539,8 @@ mt76_dma_rx_poll(struct napi_struct *napi, int budget)
rcu_read_unlock();
- if (done < budget) {
- napi_complete(napi);
+ if (done < budget && napi_complete(napi))
dev->drv->rx_poll_complete(dev, qid);
- }
return done;
}
--
2.16.4