Re: hwmon: adt7475: constify attribute_group structures.
From: Guenter Roeck
Date: Sat Jul 08 2017 - 11:57:37 EST
On Wed, Jul 05, 2017 at 11:04:04AM +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
> 10055 7032 0 17087 42bf drivers/hwmon/adt7475.o
>
> File size After adding 'const':
> text data bss dec hex filename
> 10567 6520 0 17087 42bf drivers/hwmon/adt7475.o
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
Applied to hwmon-next.
Thanks,
Guenter
> ---
> drivers/hwmon/adt7475.c | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
> index c803e3c..973f17a 100644
> --- a/drivers/hwmon/adt7475.c
> +++ b/drivers/hwmon/adt7475.c
> @@ -1205,14 +1205,14 @@ static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
> NULL
> };
>
> -static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
> -static struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
> -static struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
> -static struct attribute_group in0_attr_group = { .attrs = in0_attrs };
> -static struct attribute_group in3_attr_group = { .attrs = in3_attrs };
> -static struct attribute_group in4_attr_group = { .attrs = in4_attrs };
> -static struct attribute_group in5_attr_group = { .attrs = in5_attrs };
> -static struct attribute_group vid_attr_group = { .attrs = vid_attrs };
> +static const struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
> +static const struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
> +static const struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
> +static const struct attribute_group in0_attr_group = { .attrs = in0_attrs };
> +static const struct attribute_group in3_attr_group = { .attrs = in3_attrs };
> +static const struct attribute_group in4_attr_group = { .attrs = in4_attrs };
> +static const struct attribute_group in5_attr_group = { .attrs = in5_attrs };
> +static const struct attribute_group vid_attr_group = { .attrs = vid_attrs };
>
> static int adt7475_detect(struct i2c_client *client,
> struct i2c_board_info *info)