5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
[ Upstream commit e1e962c5b9edbc628a335bcdbd010331a12d3e5b ]
Notice that cpufreq_offline() only needs to check policy_is_inactive()
once and rearrange the code in there to make that happen.
No expected functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Stable-dep-of: b8f85833c057 ("cpufreq: exit() callback is optional")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/cpufreq/cpufreq.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c2227be7bad88..b65dc6af19f08 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1586,24 +1586,18 @@ static int cpufreq_offline(unsigned int cpu)
}
down_write(&policy->rwsem);
+
if (has_target())
cpufreq_stop_governor(policy);
cpumask_clear_cpu(cpu, policy->cpus);
- if (policy_is_inactive(policy)) {
- if (has_target())
- strncpy(policy->last_governor, policy->governor->name,
- CPUFREQ_NAME_LEN);
- else
- policy->last_policy = policy->policy;
- } else if (cpu == policy->cpu) {
- /* Nominate new CPU */
- policy->cpu = cpumask_any(policy->cpus);
- }
-
- /* Start governor again for active policy */
if (!policy_is_inactive(policy)) {
+ /* Nominate a new CPU if necessary. */
+ if (cpu == policy->cpu)
+ policy->cpu = cpumask_any(policy->cpus);
+
+ /* Start the governor again for the active policy. */
if (has_target()) {
ret = cpufreq_start_governor(policy);
if (ret)
@@ -1613,6 +1607,12 @@ static int cpufreq_offline(unsigned int cpu)
goto unlock;
}
+ if (has_target())
+ strncpy(policy->last_governor, policy->governor->name,
+ CPUFREQ_NAME_LEN);
+ else
+ policy->last_policy = policy->policy;
+
if (cpufreq_thermal_control_enabled(cpufreq_driver)) {
cpufreq_cooling_unregister(policy->cdev);
policy->cdev = NULL;
--
2.43.0
