queue-5.0/net-mlx5e-protect-against-non-uplink-representor-for-encap.patch

   1 From foo@baz Sat Apr 20 16:43:09 CEST 2019
   2 From: Dmytro Linkin <dmitrolin@mellanox.com>
   3 Date: Fri, 29 Mar 2019 12:50:37 +0000
   4 Subject: net/mlx5e: Protect against non-uplink representor for encap
   5
   6 From: Dmytro Linkin <dmitrolin@mellanox.com>
   7
   8 [ Upstream commit 5e0060b1491b299b1706414e61ede0b02265680e ]
   9
  10 TC encap offload is supported only for the physical uplink
  11 representor. Fail for non uplink representor.
  12
  13 Fixes: 3e621b19b0bb ("net/mlx5e: Support TC encapsulation offloads with upper devices")
  14 Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
  15 Reviewed-by: Eli Britstein <elibr@mellanox.com>
  16 Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
  17 Reviewed-by: Roi Dayan <roid@mellanox.com>
  18 Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
  19 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  20 ---
  21  drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c |    4 ++++
  22  1 file changed, 4 insertions(+)
  23
  24 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
  25 +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
  26 @@ -39,6 +39,10 @@ static int get_route_and_out_devs(struct
  27                         return -EOPNOTSUPP;
  28         }
  29
  30 +       if (!(mlx5e_eswitch_rep(*out_dev) &&
  31 +             mlx5e_is_uplink_rep(netdev_priv(*out_dev))))
  32 +               return -EOPNOTSUPP;
  33 +
  34         return 0;
  35  }
  36