Commit b4f0676f authored by Viresh Kumar's avatar Viresh Kumar Committed by Rafael J. Wysocki

cpufreq: Create for_each_policy()

To make code more readable and less error prone, lets create a helper macro for
iterating over all active policies.
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 1e63eaf0
......@@ -31,6 +31,12 @@
#include <linux/tick.h>
#include <trace/events/power.h>
/* Macros to iterate over lists */
/* Iterate over online CPUs policies */
static LIST_HEAD(cpufreq_policy_list);
#define for_each_policy(__policy) \
list_for_each_entry(__policy, &cpufreq_policy_list, policy_list)
/**
* The "cpufreq driver" - the arch- or hardware-dependent low
* level driver of CPUFreq support, and its spinlock. This lock
......@@ -41,7 +47,6 @@ static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data_fallback);
static DEFINE_RWLOCK(cpufreq_driver_lock);
DEFINE_MUTEX(cpufreq_governor_lock);
static LIST_HEAD(cpufreq_policy_list);
/* This one keeps track of the previously set governor of a removed CPU */
static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
......@@ -1113,7 +1118,7 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif)
/* Check if this cpu was hot-unplugged earlier and has siblings */
read_lock_irqsave(&cpufreq_driver_lock, flags);
list_for_each_entry(policy, &cpufreq_policy_list, policy_list) {
for_each_policy(policy) {
if (cpumask_test_cpu(cpu, policy->related_cpus)) {
read_unlock_irqrestore(&cpufreq_driver_lock, flags);
ret = cpufreq_add_policy_cpu(policy, cpu, dev);
......@@ -1647,7 +1652,7 @@ void cpufreq_suspend(void)
pr_debug("%s: Suspending Governors\n", __func__);
list_for_each_entry(policy, &cpufreq_policy_list, policy_list) {
for_each_policy(policy) {
if (__cpufreq_governor(policy, CPUFREQ_GOV_STOP))
pr_err("%s: Failed to stop governor for policy: %p\n",
__func__, policy);
......@@ -1681,7 +1686,7 @@ void cpufreq_resume(void)
pr_debug("%s: Resuming Governors\n", __func__);
list_for_each_entry(policy, &cpufreq_policy_list, policy_list) {
for_each_policy(policy) {
if (cpufreq_driver->resume && cpufreq_driver->resume(policy))
pr_err("%s: Failed to resume driver: %p\n", __func__,
policy);
......@@ -2324,7 +2329,7 @@ static int cpufreq_boost_set_sw(int state)
struct cpufreq_policy *policy;
int ret = -EINVAL;
list_for_each_entry(policy, &cpufreq_policy_list, policy_list) {
for_each_policy(policy) {
freq_table = cpufreq_frequency_get_table(policy->cpu);
if (freq_table) {
ret = cpufreq_frequency_table_cpuinfo(policy,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment