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bpf, mlx5: drop priv->xdp_prog reference on netdev cleanup

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mlx5e_xdp_set() is currently the only place where we drop reference on the
prog sitting in priv->xdp_prog when it's exchanged by a new one. We also
need to make sure that we eventually release that reference, for example,
in case the netdev is dismantled, otherwise we leak the program.

Fixes: 86994156c736 ("net/mlx5e: XDP fast RX drop bpf programs support")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2016-11-19 01:45:02 +01:00 committed by David S. Miller
parent c54c062904
commit a055c19be9
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@ -3705,6 +3705,9 @@ static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
if (MLX5_CAP_GEN(mdev, vport_group_manager))
mlx5_eswitch_unregister_vport_rep(esw, 0);
if (priv->xdp_prog)
bpf_prog_put(priv->xdp_prog);
}
static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)