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 bc976a3..1c7b91c 100644 (file)
--- 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;