From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751771AbaHDDQL (ORCPT ); Sun, 3 Aug 2014 23:16:11 -0400 Received: from szxga01-in.huawei.com ([119.145.14.64]:62658 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750929AbaHDDQK (ORCPT ); Sun, 3 Aug 2014 23:16:10 -0400 From: To: , , , CC: , , Chunhe Li Subject: [PATCH net/net-next] bonding:Don't received packets if bonding is not up Date: Mon, 4 Aug 2014 11:15:13 +0800 Message-ID: <1407122113-3184-1-git-send-email-lichunhe@huawei.com> X-Mailer: git-send-email 1.9.2.msysgit.0 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.177.26.106] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chunhe Li If the bonding device is down, it should not receive packets to network stack or other upper flow stack. Signed-off-by: Chunhe Li --- drivers/net/bonding/bond_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 701f86c..48a127b 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1110,6 +1110,12 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) int (*recv_probe)(const struct sk_buff *, struct bonding *, struct slave *); int ret = RX_HANDLER_ANOTHER; + + slave = bond_slave_get_rcu(skb->dev); + bond = slave->bond; + + if (unlikely(!(bond->dev->flags & IFF_UP))) + return RX_HANDLER_PASS; skb = skb_share_check(skb, GFP_ATOMIC); if (unlikely(!skb)) @@ -1117,9 +1123,6 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) *pskb = skb; - slave = bond_slave_get_rcu(skb->dev); - bond = slave->bond; - recv_probe = ACCESS_ONCE(bond->recv_probe); if (recv_probe) { ret = recv_probe(skb, bond, slave); -- 1.9.2.0