RE: [PATCH V2 5/6] cpuidle/powerpc: Backend-powerpc idle driver forpowernv and pseries.

From: Wang Dongsheng-B40534
Date: Wed Jul 31 2013 - 00:01:40 EST




>
> -static int pseries_cpuidle_add_cpu_notifier(struct notifier_block *n,
> +static int powerpc_cpuidle_add_cpu_notifier(struct notifier_block *n,
> unsigned long action, void *hcpu)
> {
> int hotcpu = (unsigned long)hcpu;
> struct cpuidle_device *dev =
> - per_cpu_ptr(pseries_cpuidle_devices, hotcpu);
> + per_cpu_ptr(powerpc_cpuidle_devices, hotcpu);
>
> if (dev && cpuidle_get_driver()) {
> switch (action) {
> @@ -235,16 +270,16 @@ static int pseries_cpuidle_add_cpu_notifier(struct
> notifier_block *n,
> }
>
> static struct notifier_block setup_hotplug_notifier = {
> - .notifier_call = pseries_cpuidle_add_cpu_notifier,
> + .notifier_call = powerpc_cpuidle_add_cpu_notifier,
> };
>
I think Daniel means move the notifier to cpuidle framework, not just powerpc.

And should be remove all about *device*. If the notifier handle using device,
you can use "cpuidle_devices".

- dongsheng

> -static int __init pseries_processor_idle_init(void)
> +static int __init powerpc_processor_idle_init(void)
> {
> int retval;
>
> - retval = pseries_idle_probe();
> + retval = powerpc_idle_probe();
> if (retval)
> return retval;
>
> - pseries_cpuidle_driver_init();
> - retval = cpuidle_register_driver(&pseries_idle_driver);
> + powerpc_cpuidle_driver_init();
> + retval = cpuidle_register_driver(&powerpc_idle_driver);
> if (retval) {
> - printk(KERN_DEBUG "Registration of pseries driver failed.\n");
> + printk(KERN_DEBUG "Registration of powerpc driver failed.\n");
> return retval;
> }
>
> update_smt_snooze_delay(-1, per_cpu(smt_snooze_delay, 0));
>
> - retval = pseries_idle_devices_init();
> + retval = powerpc_idle_devices_init();
Should be remove all *device*, using cpuidle_register.

- dongsheng

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