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Re: [PATCH 17/29] IB/mlx4: Improve another size determination in mlx4_ib_add()

From Majd Dibbiny <majd@mellanox.com>
Newsgroups linux.kernel
Subject Re: [PATCH 17/29] IB/mlx4: Improve another size determination in mlx4_ib_add()
Date 2017-02-19 18:40 +0100
Message-ID <tcDCN-1MT-7@gated-at.bofh.it> (permalink)
References <tcDCN-1MT-9@gated-at.bofh.it> <tckqu-70u-25@gated-at.bofh.it>
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> On Feb 18, 2017, at 11:06 PM, SF Markus Elfring <elfring@users.sourceforge.net> wrote:
> 
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 18 Feb 2017 15:43:54 +0100
> 
> Replace the specification of a data structure 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@users.sourceforge.net>
> ---
> drivers/infiniband/hw/mlx4/main.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
> index b78f17623121..f3194f2a6e62 100644
> --- a/drivers/infiniband/hw/mlx4/main.c
> +++ b/drivers/infiniband/hw/mlx4/main.c
> @@ -2825,9 +2825,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
>    }
>    if (mlx4_is_bonded(dev))
>        for (i = 1; i < ibdev->num_ports ; ++i) {
> -            new_counter_index =
> -                    kmalloc(sizeof(struct counter_index),
> -                        GFP_KERNEL);
> +            new_counter_index = kmalloc(sizeof(*new_counter_index),
> +                            GFP_KERNEL);
>            if (!new_counter_index)
>                goto err_counter;
>            new_counter_index->index = counter_index;
> -- 
> 2.11.1
> 
> --
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Thanks,
Reviewed-by: Majd Dibbiny
<majd@mellanox.com>

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[PATCH 00/29] IB/mlx: Fine-tuning for several function  implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 21:50 +0100
  [PATCH 04/29] IB/mlx4: Improve another size determination in  alloc_pv_object() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 04/29] IB/mlx4: Improve another size determination in  alloc_pv_object() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:10 +0100
  [PATCH 01/29] IB/mlx4: Use kcalloc() in mlx4_ib_alloc_pv_bufs() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 01/29] IB/mlx4: Use kcalloc() in mlx4_ib_alloc_pv_bufs() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:10 +0100
  [PATCH 09/29] IB/mlx4: Move an assignment out of a check in  forward_trap() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 09/29] IB/mlx4: Move an assignment out of a check in  forward_trap() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:20 +0100
  [PATCH 03/29] IB/mlx4: Improve another size determination in  mlx4_ib_alloc_demux_ctx() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 03/29] IB/mlx4: Improve another size determination in  mlx4_ib_alloc_demux_ctx() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:10 +0100
  [PATCH 06/29] IB/mlx4: Delete three unnecessary return statements SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 06/29] IB/mlx4: Delete three unnecessary return statements Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:10 +0100
  [PATCH 05/29] IB/mlx4: Fix a typo in a comment line SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 05/29] IB/mlx4: Fix a typo in a comment line Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:10 +0100
  [PATCH 07/29] IB/mlx4: Split a condition check in  handle_slaves_guid_change() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 07/29] IB/mlx4: Split a condition check in  handle_slaves_guid_change() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:10 +0100
  [PATCH 10/29] IB/mlx4: Enclose 15 expressions for the sizeof operator  by parentheses SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:00 +0100
    Re: [PATCH 10/29] IB/mlx4: Enclose 15 expressions for the sizeof  operator by parentheses Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:30 +0100
  [PATCH 15/29] IB/mlx4: Delete an unnecessary return statement in  do_slave_init() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
    Re: [PATCH 15/29] IB/mlx4: Delete an unnecessary return statement in  do_slave_init() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 23:40 +0100
  [PATCH 11/29] IB/mlx4: Use kmalloc_array() in three functions SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
    Re: [PATCH 11/29] IB/mlx4: Use kmalloc_array() in three functions Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:30 +0100
  [PATCH 13/29] IB/mlx4: Split a condition check in five functions SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
    Re: [PATCH 13/29] IB/mlx4: Split a condition check in five functions Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:30 +0100
  [PATCH 12/29] IB/mlx4: Enclose 17 expressions for the sizeof operator  by parentheses SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
    Re: [PATCH 12/29] IB/mlx4: Enclose 17 expressions for the sizeof  operator by parentheses Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:30 +0100
  [PATCH 18/29] IB/mlx4: Delete an unnecessary variable initialisation  in mlx4_ib_add() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
  [PATCH 19/29] IB/mlx4: Delete an unnecessary variable assignment in  mlx4_ib_add() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
    Re: [PATCH 19/29] IB/mlx4: Delete an unnecessary variable assignment  in mlx4_ib_add() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 20:50 +0100
  [PATCH 14/29] IB/mlx4: Delete an unnecessary variable in  __mlx4_ib_query_gid() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
  [PATCH 17/29] IB/mlx4: Improve another size determination in  mlx4_ib_add() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:10 +0100
    Re: [PATCH 17/29] IB/mlx4: Improve another size determination in  mlx4_ib_add() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:40 +0100
    Re: [PATCH 17/29] IB/mlx4: Improve another size determination in  mlx4_ib_add() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:40 +0100
  [PATCH 22/29] IB/mlx4: Use kmalloc_array() in alloc_proxy_bufs() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
    Re: [PATCH 22/29] IB/mlx4: Use kmalloc_array() in alloc_proxy_bufs() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 21:00 +0100
  [PATCH 20/29] IB/mlx4: Delete an error message for a failed memory  allocation in mlx4_ib_add() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
    Re: [PATCH 20/29] IB/mlx4: Delete an error message for a failed  memory allocation in mlx4_ib_add() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 20:50 +0100
  [PATCH 21/29] IB/mlx4: Delete unnecessary braces in mlx4_ib_add() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
    Re: [PATCH 21/29] IB/mlx4: Delete unnecessary braces in mlx4_ib_add() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 21:10 +0100
  [PATCH 29/29] IB/mlx5: Use kmalloc_array() in create_srq_kernel() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
  [PATCH 24/29] IB/mlx4: Delete unwanted spaces behind usages of the  sizeof operator SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
  [PATCH 28/29] IB/mlx5: Less function calls in create_kernel_qp()  after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
  [PATCH 27/29] IB/mlx5: Use kmalloc_array() in create_kernel_qp() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
  [PATCH 23/29] IB/mlx4: Improve size determinations in  create_qp_common() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
    Re: [PATCH 23/29] IB/mlx4: Improve size determinations in  create_qp_common() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 21:00 +0100
  [PATCH 16/29] IB/mlx4: Improve another size determination in  do_slave_init() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:20 +0100
  [PATCH 08/29] IB/mlx4: Delete an unnecessary check before the  function call "kfree" in free_pv_object() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:30 +0100
    Re: [PATCH 08/29] IB/mlx4: Delete an unnecessary check before the  function call "kfree" in free_pv_object() Majd Dibbiny <majd@mellanox.com> - 2017-02-19 18:20 +0100
  [PATCH 26/29] IB/mlx4: Enclose 14 expressions for the sizeof operator  by parentheses SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:30 +0100
  [PATCH 25/29] IB/mlx4: Add spaces for better code readability SF Markus Elfring <elfring@users.sourceforge.net> - 2017-02-18 22:50 +0100

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