Re: [PATCH] drm/amdkfd: Use ARRAY_SIZE macro in kfd_build_sysfs_node_entry

[Felix Kuehling <felix.kuehling@amd.com>]

Looks good. This change is Reviewed-by: Felix Kuehling
<Felix.Kuehling@amd.com>

Regards,
  Felix


On 2018-01-18 07:39 PM, Gustavo A. R. Silva wrote:
> Use ARRAY_SIZE instead of dividing sizeof array with sizeof an element.
>
> This issue was detected with the help of Coccinelle.
>
> Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
> ---
>  drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> index c6a7609..7783250 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> @@ -677,7 +677,7 @@ static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
>  	}
>  
>  	/* All hardware blocks have the same number of attributes. */
> -	num_attrs = sizeof(perf_attr_iommu)/sizeof(struct kfd_perf_attr);
> +	num_attrs = ARRAY_SIZE(perf_attr_iommu);
>  	list_for_each_entry(perf, &dev->perf_props, list) {
>  		perf->attr_group = kzalloc(sizeof(struct kfd_perf_attr)
>  			* num_attrs + sizeof(struct attribute_group),