Re: [PATCH v1] drivers:gt:Switch to use kmemdup_array()

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On Tue, 20 Aug 2024, Yu Jiaoliang <yujiaoliang@xxxxxxxx> wrote:
> Let the kememdup_array() take care about multiplication and possible
> overflows.
> Signed-off-by: Yu Jiaoliang <yujiaoliang@xxxxxxxx>

For future reference, please look at git log for the file instead of
inventing subject prefixes.

There should be a blank line between commit message and trailers.

Other than that,

Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>


> ---
>  drivers/gpu/drm/i915/gt/intel_workarounds.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 09a287c1aedd..d90348c56765 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -111,8 +111,8 @@ static void wa_init_finish(struct i915_wa_list *wal)
>  {
>  	/* Trim unused entries. */
>  	if (!IS_ALIGNED(wal->count, WA_LIST_CHUNK)) {
> -		struct i915_wa *list = kmemdup(wal->list,
> -					       wal->count * sizeof(*list),
> +		struct i915_wa *list = kmemdup_array(wal->list,
> +					       wal->count, sizeof(*list),
>  					       GFP_KERNEL);
>  
>  		if (list) {

-- 
Jani Nikula, Intel



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