Re: [dpdk-dev] [PATCH v2] net/mlx5: avoid crash when meter action conf is NULL

[Suanming Mou <suanmingm@mellanox.com>]

> -----Original Message-----
> From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> Sent: Monday, December 16, 2019 9:29 AM
> To: Matan Azrad <matan@mellanox.com>; Shahaf Shuler
> <shahafs@mellanox.com>
> Cc: dev@dpdk.org; Suanming Mou <suanmingm@mellanox.com>
> Subject: Re: [PATCH v2] net/mlx5: avoid crash when meter action conf is
> NULL
> 
> On Fri, Dec 13, 2019 at 10:21 PM <xiangxia.m.yue@gmail.com> wrote:
> >
> > From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> >
> > When offloading the meter, should check the action conf and make sure
> > it is valid.
> >
> > Fixes: f46bf7488705 ("net/mlx5: support meter flow action")
> > Cc: Suanming Mou <suanmingm@mellanox.com>
> >
> > Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> > ---
> > v2: coding style issues:
> > https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatch
> >
> es.dpdk.org%2Fpatch%2F63849%2F&amp;data=02%7C01%7Csuanmingm%4
> 0mellanox
> > .com%7C65507f811a6c4e942c1d08d781c77b2a%7Ca652971c7d2e4d9ba6a4
> d149256f
> >
> 461b%7C0%7C0%7C637120566090170306&amp;sdata=0qTU8puaLH8IQkUm
> %2B4nIDG8G
> > 3dTi9ktvYKp%2BcxJ8dE4%3D&amp;reserved=0
> > ---
> >  drivers/net/mlx5/mlx5_flow_dv.c | 9 ++++++++-
> >  1 file changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> > b/drivers/net/mlx5/mlx5_flow_dv.c index 73aaea4..7528556 100644
> > --- a/drivers/net/mlx5/mlx5_flow_dv.c
> > +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> > @@ -3402,7 +3402,12 @@ struct field_modify_info modify_tcp[] = {  {
> >         struct mlx5_priv *priv = dev->data->dev_private;
> >         const struct rte_flow_action_meter *am = action->conf;
> > -       struct mlx5_flow_meter *fm = mlx5_flow_meter_find(priv, am-
> >mtr_id);
> > +       struct mlx5_flow_meter *fm;
> > +
> > +       if (!am)
> > +               return rte_flow_error_set(error, EINVAL,
> > +                                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
> > +                                         "meter action conf is
> > + NULL");
> >
> >         if (action_flags & MLX5_FLOW_ACTION_METER)
> >                 return rte_flow_error_set(error, ENOTSUP, @@ -3417,6
> > +3422,8 @@ struct field_modify_info modify_tcp[] = {
> >                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
> >                                           NULL,
> >                                           "meter action not
> > supported");
> > +

Redundant empty line.
Reviewed-by: Suanming Mou <suanmingm@mellanox.com>

> > +       fm = mlx5_flow_meter_find(priv, am->mtr_id);
> >         if (!fm)
> >                 return rte_flow_error_set(error, EINVAL,
> >                                           RTE_FLOW_ERROR_TYPE_ACTION,
> > NULL,
> > --
> > 1.8.3.1
> >
> ping