From 745444583ab5c322def99907efa591860e38c75d Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Fri, 9 Jun 2017 17:11:47 +0800
Subject: [PATCH] r8152: avoid rx queue more than 1000 packets
Git-commit: 745444583ab5c322def99907efa591860e38c75d
Patch-mainline: v4.13-rc1
References: bsc#1119749
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/usb/r8152.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 204f4b2155ae..fa2958393730 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1813,6 +1813,10 @@ 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;
--
2.19.2