AcoSail/kernel_optimize_test
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cpuidle: governors: Remove remaining old module code

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The governor's code use try_module_get() and put_module() to refcount
the governor's module. But the governors are not compiled as module.

The refcount does not prevent to switch the governor or unload
a module as they aren't compiled as modules. The code is pointless,
so remove it.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Daniel Lezcano 2016-10-05 09:33:12 +02:00 committed by Rafael J. Wysocki
parent 1001354ca3
commit e5f1b24587
4 changed files with 0 additions and 10 deletions
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4
drivers/cpuidle/governor.c
View File

@ -9,7 +9,6 @@
*/
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/cpuidle.h>
#include "cpuidle.h"
@ -53,14 +52,11 @@ int cpuidle_switch_governor(struct cpuidle_governor *gov)
if (cpuidle_curr_governor) {
list_for_each_entry(dev, &cpuidle_detected_devices, device_list)
cpuidle_disable_device(dev);
module_put(cpuidle_curr_governor->owner);
}
cpuidle_curr_governor = gov;
if (gov) {
if (!try_module_get(cpuidle_curr_governor->owner))
return -EINVAL;
list_for_each_entry(dev, &cpuidle_detected_devices, device_list)
cpuidle_enable_device(dev);
cpuidle_install_idle_handler();

2
drivers/cpuidle/governors/ladder.c
View File

@ -15,7 +15,6 @@
#include <linux/kernel.h>
#include <linux/cpuidle.h>
#include <linux/pm_qos.h>
#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/tick.h>
@ -177,7 +176,6 @@ static struct cpuidle_governor ladder_governor = {
.enable = ladder_enable_device,
.select = ladder_select_state,
.reflect = ladder_reflect,
.owner = THIS_MODULE,
};
/**

2
drivers/cpuidle/governors/menu.c
View File

@ -19,7 +19,6 @@
#include <linux/tick.h>
#include <linux/sched.h>
#include <linux/math64.h>
#include <linux/module.h>
/*
* Please note when changing the tuning values:
@ -484,7 +483,6 @@ static struct cpuidle_governor menu_governor = {
.enable = menu_enable_device,
.select = menu_select,
.reflect = menu_reflect,
.owner = THIS_MODULE,
};
/**

2
include/linux/cpuidle.h
View File

@ -235,8 +235,6 @@ struct cpuidle_governor {
int (*select) (struct cpuidle_driver *drv,
struct cpuidle_device *dev);
void (*reflect) (struct cpuidle_device *dev, int index);
struct module *owner;
};
#ifdef CONFIG_CPU_IDLE