This is a note to let you know that I've just added the patch titled
cpufreq: schedutil: Simplify sugov_update_next_freq()
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cpufreq-schedutil-simplify-sugov_update_next_freq.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 190ca27e24a861374c799e472581898df78200ec
Author: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Date: Thu Nov 12 20:26:42 2020 +0100
cpufreq: schedutil: Simplify sugov_update_next_freq()
[ Upstream commit 90ac908a418b836427d6eaf84fbc5062881747fd ]
Rearrange a conditional to make it more straightforward.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Stable-dep-of: 8e461a1cb43d ("cpufreq: schedutil: Fix superfluous updates caused by need_freq_update")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 5e39da0ae0868..04295212ab500 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -102,12 +102,10 @@ static bool sugov_should_update_freq(struct sugov_policy *sg_policy, u64 time)
static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
unsigned int next_freq)
{
- if (!sg_policy->need_freq_update) {
- if (sg_policy->next_freq == next_freq)
- return false;
- } else {
+ if (sg_policy->need_freq_update)
sg_policy->need_freq_update = cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS);
- }
+ else if (sg_policy->next_freq == next_freq)
+ return false;
sg_policy->next_freq = next_freq;
sg_policy->last_freq_update_time = time;
