Re: [PATCH 06/26] dma-buf: system_heap: use array_size

[John Stultz]

On Fri, Jun 23, 2023 at 2:15 PM Julia Lawall <Julia.Lawall@xxxxxxxx> wrote:
>
> Use array_size to protect against multiplication overflows.
>
> The changes were done using the following Coccinelle semantic patch:
>
> // <smpl>
> @@
>     size_t e1,e2;
>     expression COUNT;
>     identifier alloc = {vmalloc,vzalloc,kvmalloc,kvzalloc};
> @@
>
> (
>       alloc(
> -           (e1) * (e2)
> +           array_size(e1, e2)
>       ,...)
> |
>       alloc(
> -           (e1) * (COUNT)
> +           array_size(COUNT, e1)
>       ,...)
> )
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxxx>

Thanks for sending this out!

Acked-by: John Stultz <jstultz@xxxxxxxxxx>