diff options
| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2013-01-12 05:14:38 +0000 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-02-02 00:01:14 +0100 |
| commit | 643ae6e81dd65b333a13259852405fc9f764ac76 (patch) | |
| tree | f8ce2a955d9aabdab9834caa167a7d5d1a174827 /drivers/cpufreq | |
| parent | cpufreq: ondemand: use all CPUs in update_sampling_rate (diff) | |
| download | linux-dev-643ae6e81dd65b333a13259852405fc9f764ac76.tar.xz linux-dev-643ae6e81dd65b333a13259852405fc9f764ac76.zip | |
cpufreq: Manage only online cpus
cpufreq core doesn't manage offline cpus and if driver->init() has returned
mask including offline cpus, it may result in unwanted behavior by cpufreq core
or governors.
We need to get only online cpus in this mask. There are two places to fix this
mask, cpufreq core and cpufreq driver. It makes sense to do this at common place
and hence is done in core.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 1f93dbd72355..de9951766dd8 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -970,6 +970,13 @@ static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif) pr_debug("initialization failed\n"); goto err_unlock_policy; } + + /* + * affected cpus must always be the one, which are online. We aren't + * managing offline cpus here. + */ + cpumask_and(policy->cpus, policy->cpus, cpu_online_mask); + policy->user_policy.min = policy->min; policy->user_policy.max = policy->max; |