This is a note to let you know that I've just added the patch titled
cpufreq: conservative: Allow down_threshold to take values from 1 to 10
to the 4.11-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-conservative-allow-down_threshold-to-take-values-from-1-to-10.patch
and it can be found in the queue-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b8e11f7d2791bd9320be1c6e772a60b2aa093e45 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Wilczy=C5=84ski?= <twilczynski@xxxxxxxxx>
Date: Sun, 11 Jun 2017 17:28:39 +0900
Subject: cpufreq: conservative: Allow down_threshold to take values from 1 to 10
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From: Tomasz Wilczyński <twilczynski@xxxxxxxxx>
commit b8e11f7d2791bd9320be1c6e772a60b2aa093e45 upstream.
Commit 27ed3cd2ebf4 (cpufreq: conservative: Fix the logic in frequency
decrease checking) removed the 10 point substraction when comparing the
load against down_threshold but did not remove the related limit for the
down_threshold value. As a result, down_threshold lower than 11 is not
allowed even though values from 1 to 10 do work correctly too. The
comment ("cannot be lower than 11 otherwise freq will not fall") also
does not apply after removing the substraction.
For this reason, allow down_threshold to take any value from 1 to 99
and fix the related comment.
Fixes: 27ed3cd2ebf4 (cpufreq: conservative: Fix the logic in frequency decrease checking)
Signed-off-by: Tomasz Wilczyński <twilczynski@xxxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/cpufreq/cpufreq_conservative.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -185,8 +185,8 @@ static ssize_t store_down_threshold(stru
int ret;
ret = sscanf(buf, "%u", &input);
- /* cannot be lower than 11 otherwise freq will not fall */
- if (ret != 1 || input < 11 || input > 100 ||
+ /* cannot be lower than 1 otherwise freq will not fall */
+ if (ret != 1 || input < 1 || input > 100 ||
input >= dbs_data->up_threshold)
return -EINVAL;
Patches currently in stable-queue which might be from twilczynski@xxxxxxxxx are
queue-4.11/cpufreq-conservative-allow-down_threshold-to-take-values-from-1-to-10.patch