linux-kernel - Re: hwmon: adc128d818: constify attribute

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Date:   Sat, 8 Jul 2017 08:56:37 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Arvind Yadav <arvind.yadav.cs@...il.com>
Cc:     jdelvare@...e.com, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: hwmon: adc128d818: constify attribute_group structures.

On Wed, Jul 05, 2017 at 10:52:13AM +0530, 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
>    2304	   2936	      0	   5240	   1478	drivers/hwmon/adc128d818.o
> 
> File size After adding 'const':
>    text	   data	    bss	    dec	    hex	filename
>    2344	   2872	      0	   5216	   1460	drivers/hwmon/adc128d818.o
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>

Applied to hwmon-next.

Thanks,
Guenter

> ---
>  drivers/hwmon/adc128d818.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/hwmon/adc128d818.c b/drivers/hwmon/adc128d818.c
> index a557b46..bd2ca31 100644
> --- a/drivers/hwmon/adc128d818.c
> +++ b/drivers/hwmon/adc128d818.c
> @@ -384,7 +384,7 @@ static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
>  	NULL
>  };
>  
> -static struct attribute_group adc128_group = {
> +static const struct attribute_group adc128_group = {
>  	.attrs = adc128_attrs,
>  	.is_visible = adc128_is_visible,
>  };