On Thu, 2017-01-19 at 17:09 +0800, kbuild test robot wrote:
> drivers/net/ethernet/aquantia/atlantic/aq_ring.c:24:20-41: WARNING: casting
> value returned by memory allocation function to (struct aq_ring_buff_s *) is
> useless.
>
> Remove casting the values returned by memory allocation functions
> like kmalloc, kzalloc, kmem_cache_alloc, kmem_cache_zalloc etc.
[]
> --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
> +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
> @@ -21,7 +21,7 @@ static struct aq_ring_s *aq_ring_alloc(s
> {
> int err = 0;
>
> - self->buff_ring = (struct aq_ring_buff_s *)
> + self->buff_ring =
> kzalloc(sizeof(struct aq_ring_buff_s) * self->size, GFP_KERNEL);
This should likely be kcalloc
