On Mon, Nov 15, 2010 at 4:08 PM, Eli Cohen <e...@dev.mellanox.co.il> wrote:
> The members_count field size is 24 bits so mask it properly when reading it.
>
> Signed-off-by: Eli Cohen <e...@mellanox.co.il>
> ---
> drivers/net/mlx4/mcg.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
> index c4f88b7..fff20fc 100644
> --- a/drivers/net/mlx4/mcg.c
> +++ b/drivers/net/mlx4/mcg.c
> @@ -187,7 +187,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct
> mlx4_qp *qp, u8 gid[16],
> memcpy(mgm->gid, gid, 16);
> }
>
> - members_count = be32_to_cpu(mgm->members_count);
> + members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
> if (members_count == MLX4_QP_PER_MGM) {
> mlx4_err(dev, "MGM at index %x is full.\n", index);
> err = -ENOMEM;
> --
> 1.6.0.2
>
Don't you need to do the same when detaching?
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