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| author | Sanjay Chandrashekara <sanjayc@nvidia.com> | 2023-04-18 14:34:54 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-04-18 18:45:28 +0300 |
| commit | 44295af5019f1997d038ad2611086a2d1e2af167 (patch) | |
| tree | 4da12390ce5bbf6fc0e9d11527cacf1f3e2c0f9b /drivers/cpufreq/cpufreq.c | |
| parent | 684952212ca639bce124e673f9f644a09895359c (diff) | |
| download | linux-44295af5019f1997d038ad2611086a2d1e2af167.tar.xz | |
cpufreq: use correct unit when verify cur freq
cpufreq_verify_current_freq checks() if the frequency returned by
the hardware has a slight delta with the valid frequency value
last set and returns "policy->cur" if the delta is within "1 MHz".
In the comparison, "policy->cur" is in "kHz" but it's compared
against HZ_PER_MHZ. So, the comparison range becomes "1 GHz".
Fix this by comparing against KHZ_PER_MHZ instead of HZ_PER_MHZ.
Fixes: f55ae08c8987 ("cpufreq: Avoid unnecessary frequency updates due to mismatch")
Signed-off-by: Sanjay Chandrashekara <sanjayc@nvidia.com>
[ sumit gupta: Commit message update ]
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index b24ed81ba8bd..2ac905c637dd 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1732,7 +1732,7 @@ static unsigned int cpufreq_verify_current_freq(struct cpufreq_policy *policy, b * MHz. In such cases it is better to avoid getting into * unnecessary frequency updates. */ - if (abs(policy->cur - new_freq) < HZ_PER_MHZ) + if (abs(policy->cur - new_freq) < KHZ_PER_MHZ) return policy->cur; cpufreq_out_of_sync(policy, new_freq); |