diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-05-25 12:19:58 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-05-30 11:16:59 +0200 |
| commit | cc85de361d99490df182e63d13f409054a579a13 (patch) | |
| tree | e25832af936e4dc7e4a0c13da67f44f6f540eff2 /drivers/cpufreq | |
| parent | 9c80172b902db58233346adbb139cfdcb9229f0f (diff) | |
| download | linux-cc85de361d99490df182e63d13f409054a579a13.tar.bz2 | |
cpufreq: Use static SRCU initializer
Use the static SRCU initializer for `cpufreq_transition_notifier_list'.
This avoids the init_cpufreq_transition_notifier_list() initcall. Its
only purpose is to initialize the SRCU notifier once during boot and set
another variable which is used as an indicator whether the init was
perfromed before cpufreq_register_notifier() was used.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-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 | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 82123a138576..b0dfd3222013 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -89,16 +89,7 @@ static void cpufreq_governor_limits(struct cpufreq_policy *policy); * The mutex locks both lists. */ static BLOCKING_NOTIFIER_HEAD(cpufreq_policy_notifier_list); -static struct srcu_notifier_head cpufreq_transition_notifier_list; - -static bool init_cpufreq_transition_notifier_list_called; -static int __init init_cpufreq_transition_notifier_list(void) -{ - srcu_init_notifier_head(&cpufreq_transition_notifier_list); - init_cpufreq_transition_notifier_list_called = true; - return 0; -} -pure_initcall(init_cpufreq_transition_notifier_list); +SRCU_NOTIFIER_HEAD_STATIC(cpufreq_transition_notifier_list); static int off __read_mostly; static int cpufreq_disabled(void) @@ -1767,8 +1758,6 @@ int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list) if (cpufreq_disabled()) return -EINVAL; - WARN_ON(!init_cpufreq_transition_notifier_list_called); - switch (list) { case CPUFREQ_TRANSITION_NOTIFIER: mutex_lock(&cpufreq_fast_switch_lock); |