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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-01-27 14:06:08 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-02-03 23:27:45 +0100 |
| commit | b4f0676fe20da6abe4577cf960862bed7a31647e (patch) | |
| tree | 949518ef27c36a472170c0cbd571d438a7e6fee8 | |
| parent | 1e63eaf0c45f0ac733ef2818cd93e3e9047ef1c5 (diff) | |
| download | linux-b4f0676fe20da6abe4577cf960862bed7a31647e.tar.gz linux-b4f0676fe20da6abe4577cf960862bed7a31647e.tar.bz2 linux-b4f0676fe20da6abe4577cf960862bed7a31647e.zip | |
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: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 158709418e21..baa238fbadc1 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -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, |