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authorViresh Kumar <viresh.kumar@linaro.org>2013-08-03 23:20:07 (GMT)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-08-07 21:02:50 (GMT)
commitd8d3b4711297e101bbad826474013edbe342c333 (patch)
treeaf0786e2884a0d31b9c0506ed8d01ee1ccc44414
parent10659ab7b50e963429f1a681882404ca37aa584c (diff)
downloadlinux-d8d3b4711297e101bbad826474013edbe342c333.tar.xz
cpufreq: Pass policy to cpufreq_add_policy_cpu()
The caller of cpufreq_add_policy_cpu() already has a pointer to the policy structure and there is no need to look it up again in cpufreq_add_policy_cpu(). Let's pass it directly. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/cpufreq/cpufreq.c18
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 924d3f5..1faf320 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -897,21 +897,17 @@ static void cpufreq_init_policy(struct cpufreq_policy *policy)
}
#ifdef CONFIG_HOTPLUG_CPU
-static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
- struct device *dev, bool frozen)
+static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy,
+ unsigned int cpu, struct device *dev,
+ bool frozen)
{
- struct cpufreq_policy *policy;
int ret = 0, has_target = !!cpufreq_driver->target;
unsigned long flags;
- policy = cpufreq_cpu_get(sibling);
- if (WARN_ON_ONCE(!policy))
- return -ENODATA;
-
if (has_target)
__cpufreq_governor(policy, CPUFREQ_GOV_STOP);
- lock_policy_rwsem_write(sibling);
+ lock_policy_rwsem_write(policy->cpu);
write_lock_irqsave(&cpufreq_driver_lock, flags);
@@ -920,7 +916,7 @@ static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
per_cpu(cpufreq_cpu_data, cpu) = policy;
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
- unlock_policy_rwsem_write(sibling);
+ unlock_policy_rwsem_write(policy->cpu);
if (has_target) {
__cpufreq_governor(policy, CPUFREQ_GOV_START);
@@ -931,7 +927,6 @@ static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
if (!frozen)
ret = sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq");
- cpufreq_cpu_put(policy);
return ret;
}
#endif
@@ -1014,8 +1009,7 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif,
struct cpufreq_policy *cp = per_cpu(cpufreq_cpu_data, sibling);
if (cp && cpumask_test_cpu(cpu, cp->related_cpus)) {
read_unlock_irqrestore(&cpufreq_driver_lock, flags);
- return cpufreq_add_policy_cpu(cpu, sibling, dev,
- frozen);
+ return cpufreq_add_policy_cpu(cp, cpu, dev, frozen);
}
}
read_unlock_irqrestore(&cpufreq_driver_lock, flags);