From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Fri, 30 Sep 2016 01:13:34 +0000 (+0200)
Subject: cpufreq: intel_pstate: Clarify comment in get_target_pstate_use_performance()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f00593a4bdd22e0885db89df8ee8afcc6867994f;p=linux.git

cpufreq: intel_pstate: Clarify comment in get_target_pstate_use_performance()

Make the comment explaining the meaning of the perf_scaled variable
in get_target_pstate_use_performance() more straightforward.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index bc976a3db2530..1c7b91c5805bd 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1251,10 +1251,11 @@ static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu)
 	u64 duration_ns;
 
 	/*
-	 * perf_scaled is the average performance during the last sampling
-	 * period scaled by the ratio of the maximum P-state to the P-state
-	 * requested last time (in percent).  That measures the system's
-	 * response to the previous P-state selection.
+	 * perf_scaled is the ratio of the average P-state during the last
+	 * sampling period to the P-state requested last time (in percent).
+	 *
+	 * That measures the system's response to the previous P-state
+	 * selection.
 	 */
 	max_pstate = cpu->pstate.max_pstate_physical;
 	current_pstate = cpu->pstate.current_pstate;