netdev - [PATCH] net/mlx5e: restrict the real_dev of vlan device is the same as uplink device

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Message-Id: <1557912345-14649-1-git-send-email-wenxu@ucloud.cn>
Date:   Wed, 15 May 2019 17:25:45 +0800
From:   wenxu@...oud.cn
To:     saeedm@...lanox.com
Cc:     netdev@...r.kernel.org
Subject: [PATCH] net/mlx5e: restrict the real_dev of vlan device is the same as uplink device

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

When register indr block for vlan device, it should check the real_dev
of vlan device is same as uplink device. Or it will set offload rule
to mlx5e which will never hit.

Signed-off-by: wenxu <wenxu@...oud.cn>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 91e24f1..a39fdac 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -796,7 +796,7 @@ static int mlx5e_nic_rep_netdevice_event(struct notifier_block *nb,
 	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 
 	if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
-	    !is_vlan_dev(netdev))
+	    !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev))
 		return NOTIFY_OK;
 
 	switch (event) {
-- 
1.8.3.1