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Commit e9751894 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
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cpufreq: governor: Simplify cpufreq_governor_limits() 



Use the observation that cpufreq_governor_limits() doesn't have to
get to the policy object it wants to manipulate by walking the
reference chain cdbs->policy_dbs->policy, as the final pointer is
actually equal to its argument, and make it access the policy
object directy via its argument.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent d10b5eb5

drivers/cpufreq/cpufreq_governor.c

+8 −9
Original line number Diff line number Diff line
@@ -519,20 +519,19 @@ static int cpufreq_governor_limits(struct cpufreq_policy *policy) 
{

	struct dbs_governor *gov = dbs_governor_of(policy);

	struct cpu_dbs_info *cdbs = gov->get_cpu_cdbs(policy->cpu);

	struct policy_dbs_info *policy_dbs = cdbs->policy_dbs;



	/* State should be equivalent to START */

	if (!cdbs->policy_dbs || !cdbs->policy_dbs->policy)

	if (!policy_dbs || !policy_dbs->policy)

		return -EBUSY;



	mutex_lock(&cdbs->policy_dbs->timer_mutex);

	if (policy->max < cdbs->policy_dbs->policy->cur)

		__cpufreq_driver_target(cdbs->policy_dbs->policy, policy->max,

					CPUFREQ_RELATION_H);

	else if (policy->min > cdbs->policy_dbs->policy->cur)

		__cpufreq_driver_target(cdbs->policy_dbs->policy, policy->min,

					CPUFREQ_RELATION_L);

	mutex_lock(&policy_dbs->timer_mutex);

	if (policy->max < policy->cur)

		__cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);

	else if (policy->min > policy->cur)

		__cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);

	dbs_check_cpu(policy);

	mutex_unlock(&cdbs->policy_dbs->timer_mutex);

	mutex_unlock(&policy_dbs->timer_mutex);



	return 0;

}