Re: [PATCH] PM: Constify static struct attribute_group

From: Rafael J. Wysocki
Date: Fri Feb 12 2021 - 10:49:23 EST


On Mon, Feb 1, 2021 at 11:58 PM Rikard Falkeborn
<rikard.falkeborn@xxxxxxxxx> wrote:
>
> The only usage of suspend_attr_group is to put its address in an array of
> pointers to const attribute_group structs. Make it const to allow the
> compiler to put it in read-only memory.
>
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
> ---
> kernel/power/main.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/power/main.c b/kernel/power/main.c
> index 0aefd6f57e0a..12c7e1bb442f 100644
> --- a/kernel/power/main.c
> +++ b/kernel/power/main.c
> @@ -387,7 +387,7 @@ static struct attribute *suspend_attrs[] = {
> NULL,
> };
>
> -static struct attribute_group suspend_attr_group = {
> +static const struct attribute_group suspend_attr_group = {
> .name = "suspend_stats",
> .attrs = suspend_attrs,
> };
> --

Applied as 5.12 material, thanks!