Re: [PATCH] thunderbolt: constify attribute_group structure

From: Mika Westerberg
Date: Sat Aug 05 2017 - 04:35:40 EST


On Fri, Aug 04, 2017 at 09:42:09PM -0400, Amitoj Kaur Chawla wrote:
> Functions working with attribute_groups provided by <linux/device.h>
> work with const attribute_group. These attribute_group structures do not
> change at runtime so mark them as const.
>
> File size before:
> text data bss dec hex filename
> 28565 7300 0 35865 8c19 drivers/thunderbolt/switch.o
>
> File size after:
> text data bss dec hex filename
> 28661 7204 0 35865 8c19 drivers/thunderbolt/switch.o
>
> This change was made with the help of Coccinelle.
>
> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@xxxxxxxxx>

Acked-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

Unfortunately you forgot to Cc Greg. He has been gathering Thunderbolt
related patches. I added him now but it may be that you need to resend
the patch to make it easier for him to apply.

> ---
> drivers/thunderbolt/switch.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
> index e9391bb..6cd4f14 100644
> --- a/drivers/thunderbolt/switch.c
> +++ b/drivers/thunderbolt/switch.c
> @@ -970,7 +970,7 @@ static umode_t switch_attr_is_visible(struct kobject *kobj,
> return sw->safe_mode ? 0 : attr->mode;
> }
>
> -static struct attribute_group switch_group = {
> +static const struct attribute_group switch_group = {
> .is_visible = switch_attr_is_visible,
> .attrs = switch_attrs,
> };
> --
> 2.7.4