Merge back earlier cpufreq material for v4.8.

[cascardo/linux.git] / drivers / cpufreq / intel_pstate.c

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 2ed7955..f6dd072 100644 (file)
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1422,6 +1422,9 @@ static void intel_pstate_set_update_util_hook(unsigned int cpu_num)
 {
        struct cpudata *cpu = all_cpu_data[cpu_num];
 
+       if (cpu->update_util_set)
+               return;
+
        /* Prevent intel_pstate_update_util() from using stale data. */
        cpu->sample.time = 0;
        cpufreq_add_update_util_hook(cpu_num, &cpu->update_util,
@@ -1462,8 +1465,6 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
        if (!policy->cpuinfo.max_freq)
                return -ENODEV;
 
-       intel_pstate_clear_update_util_hook(policy->cpu);
-
        pr_debug("set_policy cpuinfo.max %u policy->max %u\n",
                 policy->cpuinfo.max_freq, policy->max);