From 9ceec359e4ebdbbfd35375203c5bd06d602225f7 Mon Sep 17 00:00:00 2001 From: Matthew Finlay Date: Mon, 27 Jun 2016 12:08:36 +0300 Subject: [PATCH] net/mlx5e: Prevent adding the same vxlan port Do not allow the same vxlan udp port to be added to the device more than once. Fixes: b3f63c3d5e2c ("net/mlx5e: Add netdev support for VXLAN tunneling") Signed-off-by: Matthew Finlay Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/vxlan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c b/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c index f2fd1ef16da7..05de77267d58 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c @@ -105,6 +105,9 @@ static void mlx5e_vxlan_add_port(struct work_struct *work) struct mlx5e_vxlan *vxlan; int err; + if (mlx5e_vxlan_lookup_port(priv, port)) + goto free_work; + if (mlx5e_vxlan_core_add_port_cmd(priv->mdev, port)) goto free_work; -- 2.20.1