cpufreq: optimize policy_is_shared()

The switch to cpumask_nth() over cpumask_weight(), as it may return
earlier - as soon as the function counts the required number of CPUs.

Signed-off-by: Yury Norov <ynorov@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
Link: https://patch.msgid.link/20260314192544.605914-1-ynorov@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index cc894fc389710521152f5884e543e03bd194958a..8ca2bcb3d7aee7bddff335fa79cd401fcfb0beff 100644 (file)
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -232,7 +232,7 @@ static inline bool policy_is_inactive(struct cpufreq_policy *policy)
 
 static inline bool policy_is_shared(struct cpufreq_policy *policy)
 {
-       return cpumask_weight(policy->cpus) > 1;
+       return cpumask_nth(1, policy->cpus) < nr_cpumask_bits;
 }
 
 #ifdef CONFIG_CPU_FREQ