linux-kernel - Re: [PATCH 03/29] IB/mlx4: Improve another size determination in mlx4_ib_alloc_demux

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Date:   Sun, 19 Feb 2017 17:06:20 +0000
From:   Majd Dibbiny <majd@...lanox.com>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>
CC:     "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        Doug Ledford <dledford@...hat.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>,
        "Leon Romanovsky" <leonro@...lanox.com>,
        Matan Barak <matanb@...lanox.com>,
        "Sean Hefty" <sean.hefty@...el.com>,
        Yishai Hadas <yishaih@...lanox.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH 03/29] IB/mlx4: Improve another size determination in
 mlx4_ib_alloc_demux_ctx()


> On Feb 18, 2017, at 10:50 PM, SF Markus Elfring <elfring@...rs.sourceforge.net> wrote:
> 
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Fri, 17 Feb 2017 20:15:02 +0100
> 
> Replace the specification of a data type by a pointer dereference
> as the parameter for the operator "sizeof" to make the corresponding size
> determination a bit safer according to the Linux coding style convention.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
> drivers/infiniband/hw/mlx4/mad.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
> index 858da8746d49..284634d36b1c 100644
> --- a/drivers/infiniband/hw/mlx4/mad.c
> +++ b/drivers/infiniband/hw/mlx4/mad.c
> @@ -2150,7 +2150,7 @@ static int mlx4_ib_alloc_demux_ctx(struct mlx4_ib_dev *dev,
>    int i;
> 
>    ctx->tun = kcalloc(dev->dev->caps.sqp_demux,
> -               sizeof (struct mlx4_ib_demux_pv_ctx *), GFP_KERNEL);
> +               sizeof(*ctx->tun), GFP_KERNEL);
>    if (!ctx->tun)
>        return -ENOMEM;
> 
> -- 
> 2.11.1
> 
> --
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Thanks,
Reviewed-by: Majd Dibbiny
<majd@...lanox.com>