Re: [PATCH] kernel: power: swap: mark a function as __init to save some memory

From: Rafael J. Wysocki
Date: Fri Jun 05 2020 - 07:56:56 EST


On Sun, May 31, 2020 at 11:01 PM Christophe JAILLET
<christophe.jaillet@xxxxxxxxxx> wrote:
>
> 'swsusp_header_init()' is only called via 'core_initcall'.
> It can be marked as __init to save a few bytes of memory.
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> kernel/power/swap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/power/swap.c b/kernel/power/swap.c
> index ca0fcb5ced71..01e2858b5fe3 100644
> --- a/kernel/power/swap.c
> +++ b/kernel/power/swap.c
> @@ -1590,7 +1590,7 @@ int swsusp_unmark(void)
> }
> #endif
>
> -static int swsusp_header_init(void)
> +static int __init swsusp_header_init(void)
> {
> swsusp_header = (struct swsusp_header*) __get_free_page(GFP_KERNEL);
> if (!swsusp_header)
> --

Applied as 5.8-rc material under the "PM: hibernate: Add __init
annotation to swsusp_header_init()" subject, thanks!