lkml.org 
[lkml]   [2019]   [Apr]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
SubjectRe: [PATCH v2] staging: greybus: power_supply: use struct_size() helper
Date
Oi Gustavo,
Thanks for the patch, and the rebasing.

On Wed 17 Apr 2019 at 19:44, Gustavo A. R. Silva wrote:
> Make use of the struct_size() helper instead of an open-coded
> version
> in order to avoid any potential type mistakes, in particular in
> the
> context in which this code is being used.
>
> So, replace code of the following form:
>
> sizeof(*resp) + props_count * sizeof(struct
> gb_power_supply_props_desc)
>
> with:
>
> struct_size(resp, props, props_count)
>
> This code was detected with the help of Coccinelle.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>

---
Cheers,
Rui


> ---
> Changes in v2:
> - Rebase on top of 47830c1127ef ("staging: greybus:
> power_supply: fix prop-descriptor request size")
>
> drivers/staging/greybus/power_supply.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/greybus/power_supply.c
> b/drivers/staging/greybus/power_supply.c
> index ae5c0285a942..34b40a409ea3 100644
> --- a/drivers/staging/greybus/power_supply.c
> +++ b/drivers/staging/greybus/power_supply.c
> @@ -520,8 +520,8 @@ static int
> gb_power_supply_prop_descriptors_get(struct gb_power_supply
> *gbpsy)
>
> op = gb_operation_create(connection,
> GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS,
> - sizeof(*req), sizeof(*resp) +
> props_count *
> - sizeof(struct
> gb_power_supply_props_desc),
> + sizeof(*req),
> + struct_size(resp, props,
> props_count),
> GFP_KERNEL);
> if (!op)
> return -ENOMEM;

\
 
 \ /
  Last update: 2019-04-18 11:00    [W:0.055 / U:0.948 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site