Re: [patch V2 43/67] leds/trigger/cpu: Convert to hotplug state machine

From: Jacek Anaszewski
Date: Thu Jul 14 2016 - 07:23:54 EST


On 07/14/2016 11:41 AM, Peter Zijlstra wrote:
On Thu, Jul 14, 2016 at 10:10:55AM +0200, Jacek Anaszewski wrote:
On 07/14/2016 09:47 AM, Ingo Molnar wrote:

* Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx> wrote:

@@ -133,7 +125,13 @@ static int __init ledtrig_cpu_init(void)
}

register_syscore_ops(&ledtrig_cpu_syscore_ops);
- register_cpu_notifier(&ledtrig_cpu_nb);
+
+ /*
+ * FIXME: Why needs this to happen in the interrupt disabled
+ * low level bringup phase of a cpu?
+ */

Thanks for the explanation. I'm OK with that approach.

Since we have your attention, could you perhaps attempt to answer the
question so we can fix the fixme?


This is the way how all led triggers are being registered.

Once a trigger module is loaded it needs to be registered in
the LED Trigger core.

--
Best regards,
Jacek Anaszewski