Re: [PATCH] kernel/cpu_pm: fix cpu_cluster_pm_exit comment

From: Rafael J. Wysocki
Date: Wed Sep 02 2015 - 20:33:28 EST


On Wednesday, September 02, 2015 04:18:57 PM Lina Iyer wrote:
> cpu_cluster_pm_exit() must be sent after cpu_cluster_pm_enter() has been
> sent for the cluster and before any cpu_pm_exit() notifications are sent
> for any CPU.
>
> Cc: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx>
> Acked-by: Kevin Hilman <khilman@xxxxxxxxxx>
> Signed-off-by: Lina Iyer <lina.iyer@xxxxxxxxxx>

OK, I'll queue this one up for the next PM pull request.

Thanks!


> ---
> kernel/cpu_pm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/cpu_pm.c b/kernel/cpu_pm.c
> index 9656a3c..009cc9a 100644
> --- a/kernel/cpu_pm.c
> +++ b/kernel/cpu_pm.c
> @@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(cpu_cluster_pm_enter);
> * low power state that may have caused some blocks in the same power domain
> * to reset.
> *
> - * Must be called after cpu_pm_exit has been called on all cpus in the power
> + * Must be called after cpu_cluster_pm_enter has been called for the power
> * domain, and before cpu_pm_exit has been called on any cpu in the power
> * domain. Notified drivers can include VFP co-processor, interrupt controller
> * and its PM extensions, local CPU timers context save/restore which
>

--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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