[PATCH v2 2/2] drm: use mem_is_zero() instead of !memchr_inv(s, 0, n)

[Jani Nikula]

On Thu, 15 Aug 2024, Kees Cook <kees at kernel.org> wrote:
> On Wed, Aug 14, 2024 at 01:00:35PM +0300, Jani Nikula wrote:
>> Use the mem_is_zero() helper where possible.
>> 
>> Conversion done using cocci:
>> 
>> | @@
>> | expression PTR;
>> | expression SIZE;
>> | @@
>> |
>> |   <...
>> | (
>> | - memchr_inv(PTR, 0, SIZE) == NULL
>> | + mem_is_zero(PTR, SIZE)
>> | |
>> | - !memchr_inv(PTR, 0, SIZE)
>> | + mem_is_zero(PTR, SIZE)
>> | |
>> | - memchr_inv(PTR, 0, SIZE)
>> | + !mem_is_zero(PTR, SIZE)
>> | )
>> |   ...>
>> 
>> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
>
> Thanks for these patches! Since drm is the first user, feel free to
> carry it there unless you'd prefer I carry it in my trees?
>
> Reviewed-by: Kees Cook <kees at kernel.org>

Thanks for the reviews. I've gone ahead and merged both to
drm-misc-next, heading for the next merge window.

BR,
Jani.


-- 
Jani Nikula, Intel