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cpufreq: simplify for_each_suitable_policy() macro

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Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Eric Biggers 2016-02-21 12:53:12 -06:00 committed by Rafael J. Wysocki
parent 63af405572
commit fd7dc7e6b6
1 changed files with 3 additions and 41 deletions
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44
drivers/cpufreq/cpufreq.c
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@ -38,48 +38,10 @@ static inline bool policy_is_inactive(struct cpufreq_policy *policy)
return cpumask_empty(policy->cpus);
}
static bool suitable_policy(struct cpufreq_policy *policy, bool active)
{
return active == !policy_is_inactive(policy);
}
/* Finds Next Acive/Inactive policy */
static struct cpufreq_policy *next_policy(struct cpufreq_policy *policy,
bool active)
{
do {
/* No more policies in the list */
if (list_is_last(&policy->policy_list, &cpufreq_policy_list))
return NULL;
policy = list_next_entry(policy, policy_list);
} while (!suitable_policy(policy, active));
return policy;
}
static struct cpufreq_policy *first_policy(bool active)
{
struct cpufreq_policy *policy;
/* No policies in the list */
if (list_empty(&cpufreq_policy_list))
return NULL;
policy = list_first_entry(&cpufreq_policy_list, typeof(*policy),
policy_list);
if (!suitable_policy(policy, active))
policy = next_policy(policy, active);
return policy;
}
/* Macros to iterate over CPU policies */
#define for_each_suitable_policy(__policy, __active) \
for (__policy = first_policy(__active); \
__policy; \
__policy = next_policy(__policy, __active))
#define for_each_suitable_policy(__policy, __active) \
list_for_each_entry(__policy, &cpufreq_policy_list, policy_list) \
if ((__active) == !policy_is_inactive(__policy))
#define for_each_active_policy(__policy) \
for_each_suitable_policy(__policy, true)