Li Tian <lit...@redhat.com> writes:
> Because mlx5e_link_mode is sparse e.g. Azure mlx5 reports PTYS 19.
> Do not return it when speed unless retrieved successfully.
>
> Fixes: 65a5d35571849 ("net/mlx5: Refactor link speed handling with
> mlx5_link_info struct")
> Suggested-by: Vitaly Kuznetsov <vkuzn...@redhat.com>
> Signed-off-by: Li Tian <lit...@redhat.com>
> ---
> drivers/net/ethernet/mellanox/mlx5/core/port.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c
> b/drivers/net/ethernet/mellanox/mlx5/core/port.c
> index 2d7adf7444ba..a69c83da2542 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
> @@ -1170,7 +1170,11 @@ const struct mlx5_link_info
> *mlx5_port_ptys2info(struct mlx5_core_dev *mdev,
> mlx5e_port_get_link_mode_info_arr(mdev, &table, &max_size,
> force_legacy);
> i = find_first_bit(&temp, max_size);
> - if (i < max_size)
> + /*
> + * mlx5e_link_mode is sparse. Check speed
The array is either 'mlx5e_link_mode' or 'mlx5e_ext_link_info' but both
have holes in them.
> + * is non-zero as indication of a hole.
> + */
> + if (i < max_size && table[i].speed)
> return &table[i];
>
> return NULL;
--
Vitaly
