From 303ae7230751219f43115615a2b79669f8ba53cf Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 19 Feb 2015 17:02:07 +0530 Subject: [PATCH] cpufreq: Clear policy->cpus even for the last CPU We clear policy->cpus mask while CPUs are hotplugged out. We do it for all CPUs except the last CPU of the policy. I don't remember what the rationale behind that was, but I couldn't think of anything that will break if we remove this conditional clearing and always clear policy->cpus. The benefit we get out of it is, we can know if a policy is active or not by checking if this field is empty or not. That will be used by later commits. Signed-off-by: Viresh Kumar Acked-by: Saravana Kannan Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 497935a93614..8cf0c0e7aea8 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1430,9 +1430,7 @@ static int __cpufreq_remove_dev_finish(struct device *dev, down_write(&policy->rwsem); cpus = cpumask_weight(policy->cpus); - - if (cpus > 1) - cpumask_clear_cpu(cpu, policy->cpus); + cpumask_clear_cpu(cpu, policy->cpus); up_write(&policy->rwsem); /* If cpu is last user of policy, free policy */