cregit-Linux how code gets into the kernel

Release 4.11 lib/pm-notifier-error-inject.c

Directory: lib
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/suspend.h>

#include "notifier-error-inject.h"


static int priority;
module_param(priority, int, 0);
MODULE_PARM_DESC(priority, "specify PM notifier priority");


static struct notifier_err_inject pm_notifier_err_inject = {
	.actions = {
		{ NOTIFIER_ERR_INJECT_ACTION(PM_HIBERNATION_PREPARE) },
		{ NOTIFIER_ERR_INJECT_ACTION(PM_SUSPEND_PREPARE) },
		{ NOTIFIER_ERR_INJECT_ACTION(PM_RESTORE_PREPARE) },
		{}
	}
};


static struct dentry *dir;


static int err_inject_init(void) { int err; dir = notifier_err_inject_init("pm", notifier_err_inject_dir, &pm_notifier_err_inject, priority); if (IS_ERR(dir)) return PTR_ERR(dir); err = register_pm_notifier(&pm_notifier_err_inject.nb); if (err) debugfs_remove_recursive(dir); return err; }

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Akinobu Mita60100.00%1100.00%
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static void err_inject_exit(void) { unregister_pm_notifier(&pm_notifier_err_inject.nb); debugfs_remove_recursive(dir); }

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module_init(err_inject_init); module_exit(err_inject_exit); MODULE_DESCRIPTION("PM notifier error injection module"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>");

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Akinobu Mita179100.00%1100.00%
Total179100.00%1100.00%
Directory: lib
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