netdev - Re: [PATCH v3] mlx5: Use refcount

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Date:   Wed, 7 Aug 2019 06:17:17 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Saeed Mahameed <saeedm@...lanox.com>
Cc:     "hslester96@...il.com" <hslester96@...il.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "jgg@...pe.ca" <jgg@...pe.ca>,
        "dledford@...hat.com" <dledford@...hat.com>
Subject: Re: [PATCH v3] mlx5: Use refcount_t for refcount

On Tue, Aug 06, 2019 at 08:40:11PM +0000, Saeed Mahameed wrote:
> On Tue, 2019-08-06 at 09:59 +0800, Chuhong Yuan wrote:
> > Reference counters are preferred to use refcount_t instead of
> > atomic_t.
> > This is because the implementation of refcount_t can prevent
> > overflows and detect possible use-after-free.
> > So convert atomic_t ref counters to refcount_t.
> >
> > Signed-off-by: Chuhong Yuan <hslester96@...il.com>
> > ---
> > Changes in v3:
> >   - Merge v2 patches together.
> >
> >  drivers/infiniband/hw/mlx5/srq_cmd.c         | 6 +++---
> >  drivers/net/ethernet/mellanox/mlx5/core/qp.c | 6 +++---
> >  include/linux/mlx5/driver.h                  | 3 ++-
> >  3 files changed, 8 insertions(+), 7 deletions(-)
> >
>
> LGTM, Leon, let me know if you are happy with this version,
> this should go to mlx5-next.

Thanks,
Acked-by: Leon Romanovsky <leonro@...lanox.com>