linux/drivers/watchdog/pretimeout_noop.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright (C) 2015-2016 Mentor Graphics
   4 */
   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 event
  14 * @wdd - watchdog_device
  15 *
  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