On 2017년 07월 03일 19:10, Arvind Yadav wrote:
> attribute_groups are not supposed to change at runtime. All functions
> working with attribute_groups provided by <linux/sysfs.h> work with const
> attribute_group. So mark the non-const structs as const.
> 
> File size before:
>    text          data     bss     dec     hex filename
>     621           176       0     797     31d 
> drivers/devfreq/governor_userspace.o
> 
> File size After adding 'const':
>    text          data     bss     dec     hex filename
>    670            144       0     814     32e 
> drivers/devfreq/governor_userspace.o
> 
> Signed-off-by: Arvind Yadav <[email protected]>
> ---
>  drivers/devfreq/governor_userspace.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/devfreq/governor_userspace.c 
> b/drivers/devfreq/governor_userspace.c
> index 1769760..77028c2 100644
> --- a/drivers/devfreq/governor_userspace.c
> +++ b/drivers/devfreq/governor_userspace.c
> @@ -86,7 +86,7 @@ static ssize_t show_freq(struct device *dev, struct 
> device_attribute *attr,
>       &dev_attr_set_freq.attr,
>       NULL,
>  };
> -static struct attribute_group dev_attr_group = {
> +static const struct attribute_group dev_attr_group = {
>       .name   = "userspace",
>       .attrs  = dev_entries,
>  };
> 

Looks good to me.
Reviewed-by: Chanwoo Choi <[email protected]>

-- 
Best Regards,
Chanwoo Choi
Samsung Electronics

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