Re: [PATCH v4 3/3] PM: Introduce Intel PowerClamp Driver

From: Joe Perches
Date: Thu Jan 03 2013 - 14:34:02 EST


On Thu, 2013-01-03 at 03:01 -0800, Jacob Pan wrote:
> Intel PowerClamp driver performs synchronized idle injection across
> all online CPUs. The goal is to maintain a given package level C-state
> ratio.

just trivia:

> diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c

> +static int clamping;

bool and use true/false?

> +static int window_size_set(const char *arg, const struct kernel_param *kp)
[]
> + if (new_window_size >= 10 || new_window_size < 2) {
> + pr_err("Invalid window size %lu, between 2-10\n",
> + new_window_size);

This is a misleading message or a bad test,
It's from 2 to 9

This would more normally be tested/written as

val < low || val > high

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