From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 18 Jan 2016 22:38:14 +0000 (+0000)
Subject: cns3xxx: fix a ethernet driver napi poll handling bug
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=91278df70e2139cfea3357fa9053bb69dd76cf66;p=openwrt%2Fstaging%2Fnbd.git

cns3xxx: fix a ethernet driver napi poll handling bug

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48333
---

diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
index e85e1bef9f..74a3ca0905 100644
--- a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
+++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
@@ -717,6 +717,7 @@ static int eth_poll(struct napi_struct *napi, int budget)
 	if (!received) {
 		napi_complete(napi);
 		enable_irq(sw->rx_irq);
+		budget = 0;
 
 		/* if rx descriptors are full schedule another poll */
 		if (rx_ring->desc[(i-1) & (RX_DESCS-1)].cown)
@@ -732,7 +733,7 @@ static int eth_poll(struct napi_struct *napi, int budget)
 	wmb();
 	enable_rx_dma(sw);
 
-	return received;
+	return budget;
 }
 
 static void eth_set_desc(struct sw *sw, struct _tx_ring *tx_ring, int index,