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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: b3f63c3d5e ("net/mlx5e: Add netdev support for VXLAN tunneling")
Signed-off-by: Matthew Finlay <matt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matthew Finlay 2016-06-27 12:08:36 +03:00 committed by David S. Miller
parent fd4782c213
commit 9ceec359e4
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/vxlan.c
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@ -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;