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cpufreq: Reorder and simplify cpufreq_update_policy()

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In cpufreq_update_policy(), instead of updating new_policy.cur
separately, which is kind of confusing, because cpufreq_set_policy()
doesn't take that value into account directly anyway, make the copy
of the existing policy after calling cpufreq_update_current_freq().

No intentional changes of behavior.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Rafael J. Wysocki 2019-02-20 00:24:25 +01:00
parent a0dbb819b8
commit 348a2ec5f5
1 changed files with 7 additions and 12 deletions
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19
drivers/cpufreq/cpufreq.c
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@ -2354,23 +2354,18 @@ void cpufreq_update_policy(unsigned int cpu)
if (policy_is_inactive(policy))
goto unlock;
pr_debug("updating policy for CPU %u\n", cpu);
memcpy(&new_policy, policy, sizeof(*policy));
new_policy.min = policy->user_policy.min;
new_policy.max = policy->user_policy.max;
/*
* BIOS might change freq behind our back
* -> ask driver for current freq and notify governors about a change
*/
if (cpufreq_driver->get && !cpufreq_driver->setpolicy) {
if (cpufreq_suspended)
goto unlock;
if (cpufreq_driver->get && !cpufreq_driver->setpolicy &&
(cpufreq_suspended || WARN_ON(!cpufreq_update_current_freq(policy))))
goto unlock;
new_policy.cur = cpufreq_update_current_freq(policy);
if (WARN_ON(!new_policy.cur))
goto unlock;
}
pr_debug("updating policy for CPU %u\n", cpu);
memcpy(&new_policy, policy, sizeof(*policy));
new_policy.min = policy->user_policy.min;
new_policy.max = policy->user_policy.max;
cpufreq_set_policy(policy, &new_policy);