From 50fd1a6d79d48a7c35890aecce5a5d6b872a461d Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Fri, 9 Jun 2017 17:11:47 +0800
Subject: r8152: avoid rx queue more than 1000 packets

Stop queuing rx packets if it is more than 1000.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index afb953a..c9c8649 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1812,6 +1812,10 @@ static int rx_bottom(struct r8152 *tp, int budget)
 			unsigned int pkt_len;
 			struct sk_buff *skb;
 
+			/* limite the skb numbers for rx_queue */
+			if (unlikely(skb_queue_len(&tp->rx_queue) >= 1000))
+				break;
+
 			pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
 			if (pkt_len < ETH_ZLEN)
 				break;
-- 
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