diff options
| author | Tomasz Wilczyński <twilczynski@naver.com> | 2017-06-11 17:28:39 +0900 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2017-11-06 15:19:13 +0100 |
| commit | dd749659342acc114160f19b0db5821ae30f83e4 (patch) | |
| tree | 5eb39ad1b493d0f91ebeb79c6b9e4b74b21cae7e /drivers | |
| parent | d9b41a5b81a78e61ba650a67e138d8b88b43ad79 (diff) | |
cpufreq: conservative: Allow down_threshold to take values from 1 to 10
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@naver.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpufreq/cpufreq_conservative.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index f97cb3d8c..f34e81916 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -212,8 +212,8 @@ static ssize_t store_down_threshold(struct dbs_data *dbs_data, const char *buf, 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 >= cs_tuners->up_threshold) return -EINVAL; |