On 16 July 2014 05:58, Saravana Kannan <skannan@xxxxxxxxxxxxxx> wrote:
>> + if (!cpus && cpufreq_driver->stop_cpu &&
>> cpufreq_driver->setpolicy) {
>> + cpufreq_driver->stop_cpu(policy);
>> + }
>>
>
> Viresh, I tried your suggestion (and my initial thought too) to combine this
> as an if/else with the previous if. But the indentation got nasty and made
> it hard to read. I'm sure the compiler will optimize it. So, I would prefer
> to leave it this way.
Okay, I gave that comment again :)
Try this:
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index f72b2b7..092a0ba 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -991,8 +991,10 @@ static int cpufreq_change_policy_cpus(struct
cpufreq_policy *policy,
CPUFREQ_UPDATE_POLICY_CPU, policy);
}
- cpus = !cpumask_empty(policy->cpus);
- if (has_target() && cpus) {
+ if (!cpumask_empty(policy->cpus)) {
+ if (!has_target())
+ goto unlock;
+
ret = __cpufreq_governor(policy, CPUFREQ_GOV_START);
if (!ret)
ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
@@ -1001,9 +1003,7 @@ static int cpufreq_change_policy_cpus(struct
cpufreq_policy *policy,
pr_err("%s: Failed to start governor\n", __func__);
goto unlock;
}
- }
-
- if (!cpus && cpufreq_driver->stop_cpu && cpufreq_driver->setpolicy) {
+ } else if (cpufreq_driver->stop_cpu && cpufreq_driver->setpolicy) {
cpufreq_driver->stop_cpu(policy);
}
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