root/drivers/watchdog/pretimeout_panic.c

DEFINITIONS

1. pretimeout_panic
2. watchdog_gov_panic_register
3. watchdog_gov_panic_unregister

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2015-2016 Mentor Graphics
   4  */
   5 
   6 #include <linux/kernel.h>
   7 #include <linux/module.h>
   8 #include <linux/watchdog.h>
   9 
  10 #include "watchdog_pretimeout.h"
  11 
  12 /**
  13  * pretimeout_panic - Panic on watchdog pretimeout event
  14  * @wdd - watchdog_device
  15  *
  16  * Panic, watchdog has not been fed till pretimeout event.
  17  */
  18 static void pretimeout_panic(struct watchdog_device *wdd)
  19 {
  20         panic("watchdog pretimeout event\n");
  21 }
  22 
  23 static struct watchdog_governor watchdog_gov_panic = {
  24         .name           = "panic",
  25         .pretimeout     = pretimeout_panic,
  26 };
  27 
  28 static int __init watchdog_gov_panic_register(void)
  29 {
  30         return watchdog_register_governor(&watchdog_gov_panic);
  31 }
  32 
  33 static void __exit watchdog_gov_panic_unregister(void)
  34 {
  35         watchdog_unregister_governor(&watchdog_gov_panic);
  36 }
  37 module_init(watchdog_gov_panic_register);
  38 module_exit(watchdog_gov_panic_unregister);
  39 
  40 MODULE_AUTHOR("Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>");
  41 MODULE_DESCRIPTION("Panic watchdog pretimeout governor");
  42 MODULE_LICENSE("GPL");