linux-kernel - Re: [PATCH 20/29] IB/mlx4: Delete an error message for a failed memory allocation in mlx4_ib

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Date:   Sun, 19 Feb 2017 19:48:40 +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>,
        Wolfram Sang <wsa@...-dreams.de>
Subject: Re: [PATCH 20/29] IB/mlx4: Delete an error message for a failed
 memory allocation in mlx4_ib_add()


> On Feb 18, 2017, at 11:10 PM, SF Markus Elfring <elfring@...rs.sourceforge.net> wrote:
> 
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sat, 18 Feb 2017 16:15:20 +0100
> 
> Omit an extra message for a memory allocation failure in this function.
> 
> Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
> drivers/infiniband/hw/mlx4/main.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
> index 21b88d5ceda4..33b46c463ffa 100644
> --- a/drivers/infiniband/hw/mlx4/main.c
> +++ b/drivers/infiniband/hw/mlx4/main.c
> @@ -2623,11 +2623,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
>        return NULL;
> 
>    ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof(*ibdev));
> -    if (!ibdev) {
> -        dev_err(&dev->persist->pdev->dev,
> -            "Device struct alloc failed\n");
> +    if (!ibdev)
>        return NULL;
> -    }
Not a big fan of this change.
9 out of the 15 drivers have this print in case of a failure..
> 
>    iboe = &ibdev->iboe;
> 
> -- 
> 2.11.1
> 
> --
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