Subject: Re: [PATCH][next] qtnfmac: replace qtnf_cmd_acl_data_size() with struct_size()

From: Kalle Valo <[email-masked]>
Date: Thu, 4 Apr 2019 16:38:57 +0000 (UTC)

"Gustavo A. R. Silva" <[email-masked]> 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;
>     struct boo entry[];
> };
> 
> size = sizeof(struct foo) + count * sizeof(struct boo);
> instance = kzalloc(size, GFP_KERNEL)
> 
> Instead of leaving these open-coded and prone to type mistakes, we can
> now use the new struct_size() helper:
> 
> size = struct_size(instance, entry, count);
> 
> or
> 
> instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL)
> 
> Based on the above, replace qtnf_cmd_acl_data_size() with the
> new struct_size() helper.
> 
> This code was detected with the help of Coccinelle.
> 
> Signed-off-by: Gustavo A. R. Silva <[email-masked]>
> Reviewed-by: Sergey Matyukevich <[email-masked]>

Patch applied to wireless-drivers-next.git, thanks.

95336d4cb588 qtnfmac: replace qtnf_cmd_acl_data_size() with struct_size()

-- 
https://patchwork.kernel.org/patch/10884311/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches