cpufreq: Rework two functions related to CPU offline
Since __cpufreq_remove_dev_prepare() and __cpufreq_remove_dev_finish()
are about CPU offline rather than about CPU removal, rename them to
cpufreq_offline_prepare() and cpufreq_offline_finish(), respectively.
Also change their argument from a struct device pointer to a CPU
number, because they use the CPU number only internally anyway
and make them void as their return values are ignored.
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.c b/drivers/cpufreq/cpufreq.c
index 46251e8..29e3ec9 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1398,10 +1398,8 @@
return ret;
}
-static int __cpufreq_remove_dev_prepare(struct device *dev)
+static void cpufreq_offline_prepare(unsigned int cpu)
{
- unsigned int cpu = dev->id;
- int ret = 0;
struct cpufreq_policy *policy;
pr_debug("%s: unregistering CPU %u\n", __func__, cpu);
@@ -1409,11 +1407,11 @@
policy = cpufreq_cpu_get_raw(cpu);
if (!policy) {
pr_debug("%s: No cpu_data found\n", __func__);
- return -EINVAL;
+ return;
}
if (has_target()) {
- ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
+ int ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
if (ret)
pr_err("%s: Failed to stop governor\n", __func__);
}
@@ -1434,7 +1432,7 @@
/* Start governor again for active policy */
if (!policy_is_inactive(policy)) {
if (has_target()) {
- ret = __cpufreq_governor(policy, CPUFREQ_GOV_START);
+ int ret = __cpufreq_governor(policy, CPUFREQ_GOV_START);
if (!ret)
ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
@@ -1444,28 +1442,24 @@
} else if (cpufreq_driver->stop_cpu) {
cpufreq_driver->stop_cpu(policy);
}
-
- return ret;
}
-static int __cpufreq_remove_dev_finish(struct device *dev)
+static void cpufreq_offline_finish(unsigned int cpu)
{
- unsigned int cpu = dev->id;
- int ret;
struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);
if (!policy) {
pr_debug("%s: No cpu_data found\n", __func__);
- return -EINVAL;
+ return;
}
/* Only proceed for inactive policies */
if (!policy_is_inactive(policy))
- return 0;
+ return;
/* If cpu is last user of policy, free policy */
if (has_target()) {
- ret = __cpufreq_governor(policy, CPUFREQ_GOV_POLICY_EXIT);
+ int ret = __cpufreq_governor(policy, CPUFREQ_GOV_POLICY_EXIT);
if (ret)
pr_err("%s: Failed to exit governor\n", __func__);
}
@@ -1477,8 +1471,6 @@
*/
if (cpufreq_driver->exit)
cpufreq_driver->exit(policy);
-
- return 0;
}
/**
@@ -1495,8 +1487,8 @@
return 0;
if (cpu_online(cpu)) {
- __cpufreq_remove_dev_prepare(dev);
- __cpufreq_remove_dev_finish(dev);
+ cpufreq_offline_prepare(cpu);
+ cpufreq_offline_finish(cpu);
}
cpumask_clear_cpu(cpu, policy->real_cpus);
@@ -2379,11 +2371,11 @@
break;
case CPU_DOWN_PREPARE:
- __cpufreq_remove_dev_prepare(dev);
+ cpufreq_offline_prepare(cpu);
break;
case CPU_POST_DEAD:
- __cpufreq_remove_dev_finish(dev);
+ cpufreq_offline_finish(cpu);
break;
case CPU_DOWN_FAILED: