cpufreq_cpu_get() called by get_cur_freq_on_cpu() is overkill,
because the ->get() callback is always invoked in a context in
which all of the conditions checked by cpufreq_cpu_get() are
guaranteed to be satisfied.
Use cpufreq_cpu_get_raw() instead of it and drop the
corresponding cpufreq_cpu_put() from get_cur_freq_on_cpu().
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
pr_debug("get_cur_freq_on_cpu (%d)\n", cpu);
- policy = cpufreq_cpu_get(cpu);
+ policy = cpufreq_cpu_get_raw(cpu);
if (unlikely(!policy))
return 0;
data = policy->driver_data;
- cpufreq_cpu_put(policy);
if (unlikely(!data || !data->freq_table))
return 0;
}
EXPORT_SYMBOL_GPL(cpufreq_generic_init);
-/* Only for cpufreq core internal use */
-static struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
+struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
{
struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);
return policy && cpumask_test_cpu(cpu, policy->cpus) ? policy : NULL;
}
+EXPORT_SYMBOL_GPL(cpufreq_cpu_get_raw);
unsigned int cpufreq_generic_get(unsigned int cpu)
{
#define CPUFREQ_SHARED_TYPE_ANY (3) /* Freq can be set from any dependent CPU*/
#ifdef CONFIG_CPU_FREQ
+struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu);
struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
void cpufreq_cpu_put(struct cpufreq_policy *policy);
#else
+static inline struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
+{
+ return NULL;
+}
static inline struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
{
return NULL;