linux-kernel - Re: [PATCH net-next] can: kvaser_usb: Use struct_size() in alloc

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Message-ID: <5760e0a4-101d-9ff4-b5e8-046b7dd38d1b@embeddedor.com>
Date:   Thu, 28 Mar 2019 12:58:48 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Marc Kleine-Budde <mkl@...gutronix.de>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] can: kvaser_usb: Use struct_size() in
 alloc_candev()

Hi Marc,

On 2/26/19 1:52 AM, Marc Kleine-Budde wrote:
> On 2/8/19 4:10 AM, Gustavo A. R. Silva wrote:
>> One of the more common cases of allocation size calculations is finding
>> the size of a structure that has a zero-sized array at the end, along
>> with memory for some number of elements for that array. For example:
>>
>> struct foo {
>>     int stuff;
>>     void *entry[];
>> };
>>
>> instance = alloc(sizeof(struct foo) + count * sizeof(void *));
>>
>> Instead of leaving these open-coded and prone to type mistakes, we can
>> now use the new struct_size() helper:
>>
>> instance = alloc(struct_size(instance, entry, count));
>>
>> This code was detected with the help of Coccinelle.
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> 
> Applied to linux-can-next.
> 

I noticed this patch is not in linux-next.

I wonder if you actually applied it to your tree.

Thanks
--
Gustavo