netdev - [PATCH net-next] net_failover: get rid of the limitaion receive packet from standy dev when primary exist

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-next>] [day] [month] [year] [list]

Date:   Fri, 30 Aug 2019 13:07:48 +0800
From:   wenxu@...oud.cn
To:     sridhar.samudrala@...el.com
Cc:     netdev@...r.kernel.org, davem@...emloft.net
Subject: [PATCH net-next] net_failover: get rid of the limitaion receive packet from standy dev when primary exist

From: wenxu <wenxu@...oud.cn>

For receive side the standby, primary and failover is the same one,
If the packet receive from standby or primary should can be deliver
to failover dev.

For example: there are VF and virtio device failover together.
When live migration the VF detached and send/recv packet through
virtio device. When VF attached again some ingress traffic may
receive from virtio device for cache reason(TC flower offload in
sw mode).

Signed-off-by: wenxu <wenxu@...oud.cn>
---
 drivers/net/net_failover.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/net/net_failover.c b/drivers/net/net_failover.c
index b16a122..da3beb5 100644
--- a/drivers/net/net_failover.c
+++ b/drivers/net/net_failover.c
@@ -362,14 +362,6 @@ static rx_handler_result_t net_failover_handle_frame(struct sk_buff **pskb)
 {
 	struct sk_buff *skb = *pskb;
 	struct net_device *dev = rcu_dereference(skb->dev->rx_handler_data);
-	struct net_failover_info *nfo_info = netdev_priv(dev);
-	struct net_device *primary_dev, *standby_dev;
-
-	primary_dev = rcu_dereference(nfo_info->primary_dev);
-	standby_dev = rcu_dereference(nfo_info->standby_dev);
-
-	if (primary_dev && skb->dev == standby_dev)
-		return RX_HANDLER_EXACT;
 
 	skb->dev = dev;
 
-- 
1.8.3.1