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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Copyright (C) 2015-2016 Mentor Graphics4 */5 6#include <linux/module.h>7#include <linux/printk.h>8#include <linux/watchdog.h>9 10#include "watchdog_pretimeout.h"11 12/**13 * pretimeout_noop - No operation on watchdog pretimeout event14 * @wdd - watchdog_device15 *16 * This function prints a message about pretimeout to kernel log.17 */18static void pretimeout_noop(struct watchdog_device *wdd)19{20 pr_alert("watchdog%d: pretimeout event\n", wdd->id);21}22 23static struct watchdog_governor watchdog_gov_noop = {24 .name = "noop",25 .pretimeout = pretimeout_noop,26};27 28static int __init watchdog_gov_noop_register(void)29{30 return watchdog_register_governor(&watchdog_gov_noop);31}32 33static void __exit watchdog_gov_noop_unregister(void)34{35 watchdog_unregister_governor(&watchdog_gov_noop);36}37module_init(watchdog_gov_noop_register);38module_exit(watchdog_gov_noop_unregister);39 40MODULE_AUTHOR("Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>");41MODULE_DESCRIPTION("Panic watchdog pretimeout governor");42MODULE_LICENSE("GPL");43