Re: [PATCH v3 2/3] cpuidle:powernv: Add helper function to populate powernv idle states.

[Michael Ellerman]

"Gautham R. Shenoy" <ego@xxxxxxxxxxxxxxxxxx> writes:

> diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
> index 7fe442c..9240e08 100644
> --- a/drivers/cpuidle/cpuidle-powernv.c
> +++ b/drivers/cpuidle/cpuidle-powernv.c
> @@ -243,28 +262,31 @@ static int powernv_add_idle_states(void)
>  		 */
>  		if (latency_ns[i] > POWERNV_THRESHOLD_LATENCY_NS)
>  			continue;
> +		/*
> +		 * Firmware passes residency and latency values in ns.
> +		 * cpuidle expects it in us.
> +		 */
> +		exit_latency = ((unsigned int)latency_ns[i]) / 1000;
> +		target_residency = (!rc) ? ((unsigned int)residency_ns[i]) : 0;
> +		target_residency /= 1000;

Urk.

Can you just do it normally:

		if (rc == 0)
			target_residency = (unsigned int)residency_ns[i] / 1000;

I also don't see why you need the cast?

cheers