linux-kernel - [PATCH net-next 10/11] r8152: avoid rx queue more than 1000 packets

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1394712342-15778-270-Taiwan-albertk@realtek.com>
Date:   Fri, 9 Jun 2017 17:11:47 +0800
From:   Hayes Wang <hayeswang@...ltek.com>
To:     <netdev@...r.kernel.org>
CC:     <nic_swsd@...ltek.com>, <linux-kernel@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, Hayes Wang <hayeswang@...ltek.com>
Subject: [PATCH net-next 10/11] r8152: avoid rx queue more than 1000 packets

Stop queuing rx packets if it is more than 1000.

Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
---
 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 204f4b2..fa29583 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;
-- 
2.7.4