Re: [PATCH 30/38] ACPI: PM: s2idle: Replace deprecated CPU-hotplug functions.

[Rafael J. Wysocki]

On Tue, Aug 3, 2021 at 4:17 PM Sebastian Andrzej Siewior
<bigeasy@xxxxxxxxxxxxx> wrote:
>
> The functions get_online_cpus() and put_online_cpus() have been
> deprecated during the CPU hotplug rework. They map directly to
> cpus_read_lock() and cpus_read_unlock().
>
> Replace deprecated CPU-hotplug functions with the official version.
> The behavior remains unchanged.
>
> Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
> Cc: Pavel Machek <pavel@xxxxxx>
> Cc: Len Brown <len.brown@xxxxxxxxx>
> Cc: linux-pm@xxxxxxxxxxxxxxx
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
> ---
>  kernel/power/suspend.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
> index d8cae434f9eb5..eb75f394a0590 100644
> --- a/kernel/power/suspend.c
> +++ b/kernel/power/suspend.c
> @@ -96,7 +96,7 @@ static void s2idle_enter(void)
>         s2idle_state = S2IDLE_STATE_ENTER;
>         raw_spin_unlock_irq(&s2idle_lock);
>
> -       get_online_cpus();
> +       cpus_read_lock();
>         cpuidle_resume();
>
>         /* Push all the CPUs into the idle loop. */
> @@ -106,7 +106,7 @@ static void s2idle_enter(void)
>                     s2idle_state == S2IDLE_STATE_WAKE);
>
>         cpuidle_pause();
> -       put_online_cpus();
> +       cpus_read_unlock();
>
>         raw_spin_lock_irq(&s2idle_lock);
>
> --

Applied as 5.15 material, but the subject changed to "PM: sleep:
s2idle: Replace deprecated CPU-hotplug functions".

Thanks!