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cpufreq: governor: Simplify cpufreq_governor_limits()

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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>
This commit is contained in:
Rafael J. Wysocki 2016-02-07 16:23:49 +01:00
parent d10b5eb5fc
commit e975189400
1 changed files with 8 additions and 9 deletions
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17
drivers/cpufreq/cpufreq_governor.c
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@ -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;
}