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cpuidle: remove cpuidle_unregister_governor()

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cpuidle_unregister_governor() and cpuidle_replace_governor() aren't
used anymore and can be removed. They were used by cpufreq governors
earlier, but since the governors can't be compiled as modules any
more, these two functions aren't necessary.

Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2013-10-03 21:26:55 +05:30 committed by Rafael J. Wysocki
parent d7c7f10326
commit f60e230f6b
3 changed files with 0 additions and 50 deletions
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1
Documentation/cpuidle/governor.txt
View File

@ -25,5 +25,4 @@ kernel configuration and platform will be selected by cpuidle.
Interfaces:
extern int cpuidle_register_governor(struct cpuidle_governor *gov);
extern void cpuidle_unregister_governor(struct cpuidle_governor *gov);
struct cpuidle_governor

43
drivers/cpuidle/governor.c
View File

@ -96,46 +96,3 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
return ret;
}
/**
* cpuidle_replace_governor - find a replacement governor
* @exclude_rating: the rating that will be skipped while looking for
* new governor.
*/
static struct cpuidle_governor *cpuidle_replace_governor(int exclude_rating)
{
struct cpuidle_governor *gov;
struct cpuidle_governor *ret_gov = NULL;
unsigned int max_rating = 0;
list_for_each_entry(gov, &cpuidle_governors, governor_list) {
if (gov->rating == exclude_rating)
continue;
if (gov->rating > max_rating) {
max_rating = gov->rating;
ret_gov = gov;
}
}
return ret_gov;
}
/**
* cpuidle_unregister_governor - unregisters a governor
* @gov: the governor
*/
void cpuidle_unregister_governor(struct cpuidle_governor *gov)
{
if (!gov)
return;
mutex_lock(&cpuidle_lock);
if (gov == cpuidle_curr_governor) {
struct cpuidle_governor *new_gov;
new_gov = cpuidle_replace_governor(gov->rating);
cpuidle_switch_governor(new_gov);
}
list_del(&gov->governor_list);
mutex_unlock(&cpuidle_lock);
}

6
include/linux/cpuidle.h
View File

@ -195,16 +195,10 @@ struct cpuidle_governor {
};
#ifdef CONFIG_CPU_IDLE
extern int cpuidle_register_governor(struct cpuidle_governor *gov);
extern void cpuidle_unregister_governor(struct cpuidle_governor *gov);
#else
static inline int cpuidle_register_governor(struct cpuidle_governor *gov)
{return 0;}
static inline void cpuidle_unregister_governor(struct cpuidle_governor *gov) { }
#endif
#ifdef CONFIG_ARCH_HAS_CPU_RELAX