Re: [RFC PATCH 1/2] kernel/notifier: replace single-linked list with double-linked list for reverse traversal

Christoph Hellwig
2026-04-15T07:40:25Z

On Wed, Apr 15, 2026 at 03:01:37PM +0800, chensong_2000@189.cn wrote:
> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> index 132a9df98471..b776dbd5a382 100644
> --- a/drivers/acpi/sleep.c
> +++ b/drivers/acpi/sleep.c
> @@ -56,7 +56,6 @@ static int tts_notify_reboot(struct notifier_block *this,
>
> static struct notifier_block tts_notifier = {
> .notifier_call = tts_notify_reboot,
> - .next = NULL,
> .priority = 0,

IFF this becomes important for some reason (and right now I don't see
it), please start by using proper wrappers for notifiers so that the
implementation details don't leak into the users. That would actually
be useful on it's own even.