linux-kernel - Re: [PATCH] staging: greybus: power_supply: Use struct

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <fd89ffe8-7e6b-1e88-a3c0-35a14e837dc9@embeddedor.com>
Date:   Wed, 10 Apr 2019 13:36:48 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Johan Hovold <johan@...nel.org>,
        Rui Miguel Silva <rmfrfs@...il.com>
Cc:     Alex Elder <elder@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        greybus-dev@...ts.linaro.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: greybus: power_supply: Use struct_size() helper

Johan,

On 4/4/19 2:24 AM, Johan Hovold wrote:
> On Thu, Apr 04, 2019 at 08:09:51AM +0100, Rui Miguel Silva wrote:
>> Hi Gustavo,
>> Thanks a lot for the patch.
>>
>> On Wed 03 Apr 2019 at 21:58, 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@...eddedor.com>
>>
>> What are the odds of 2 people changing same code in greybus in
>> the same day :).
> 
> Well, I only noticed the bug in the current code, when reviewing
> Gustavo's diff. ;)
> 

Apparently, your patch hasn't been applied to any tree yet.  So, I'll
wait for it to be applied before sending v2.

Thanks
--
Gustavo