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: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 431d81f..ff247a7 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -519,20 +519,19 @@
{
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;
}