openwrtv3/target/linux/mediatek/patches-4.4/0085-net-next-mediatek-dropped-rx-packets-are-not-being-c.patch

From 98aac832925a99afee8722cdfd5a848dd6086b8f Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Sat, 23 Apr 2016 09:28:25 +0200
Subject: [PATCH 085/102] net-next: mediatek: dropped rx packets are not being
 counted properly

There are 2 places inside mtk_poll_rx where rx_dropped is not being
incremented properly. Fix this by adding the missing code to increment
the counter.

Signed-off-by: Sean Wang <keyhaede@gmail.com>
Signed-off-by: John Crispin <john@phrozen.org>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -841,6 +841,7 @@ static int mtk_poll_rx(struct napi_struc
 					  DMA_FROM_DEVICE);
 		if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) {
 			skb_free_frag(new_data);
+			netdev->stats.rx_dropped++;
 			goto release_desc;
 		}
 
@@ -848,6 +849,7 @@ static int mtk_poll_rx(struct napi_struc
 		skb = build_skb(data, ring->frag_size);
 		if (unlikely(!skb)) {
 			put_page(virt_to_head_page(new_data));
+			netdev->stats.rx_dropped++;
 			goto release_desc;
 		}
 		skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN);