You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

60 lines
1.6 KiB

// SPDX-License-Identifier: GPL-2.0-only
/*
* Kernel module for testing static keys.
*
* Copyright 2015 Akamai Technologies Inc. All Rights Reserved
*
* Authors:
* Jason Baron <jbaron@akamai.com>
*/
#include <linux/module.h>
#include <linux/jump_label.h>
/* old keys */
struct static_key base_old_true_key = STATIC_KEY_INIT_TRUE;
EXPORT_SYMBOL_GPL(base_old_true_key);
struct static_key base_inv_old_true_key = STATIC_KEY_INIT_TRUE;
EXPORT_SYMBOL_GPL(base_inv_old_true_key);
struct static_key base_old_false_key = STATIC_KEY_INIT_FALSE;
EXPORT_SYMBOL_GPL(base_old_false_key);
struct static_key base_inv_old_false_key = STATIC_KEY_INIT_FALSE;
EXPORT_SYMBOL_GPL(base_inv_old_false_key);
/* new keys */
DEFINE_STATIC_KEY_TRUE(base_true_key);
EXPORT_SYMBOL_GPL(base_true_key);
DEFINE_STATIC_KEY_TRUE(base_inv_true_key);
EXPORT_SYMBOL_GPL(base_inv_true_key);
DEFINE_STATIC_KEY_FALSE(base_false_key);
EXPORT_SYMBOL_GPL(base_false_key);
DEFINE_STATIC_KEY_FALSE(base_inv_false_key);
EXPORT_SYMBOL_GPL(base_inv_false_key);
static void invert_key(struct static_key *key)
{
if (static_key_enabled(key))
static_key_disable(key);
else
static_key_enable(key);
}
static int __init test_static_key_base_init(void)
{
invert_key(&base_inv_old_true_key);
invert_key(&base_inv_old_false_key);
invert_key(&base_inv_true_key.key);
invert_key(&base_inv_false_key.key);
return 0;
}
static void __exit test_static_key_base_exit(void)
{
}
module_init(test_static_key_base_init);
module_exit(test_static_key_base_exit);
MODULE_AUTHOR("Jason Baron <jbaron@akamai.com>");
MODULE_LICENSE("GPL");