| 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(fmt: "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(gov: &watchdog_gov_panic); |
| 31 | } |
| 32 | |
| 33 | static void __exit watchdog_gov_panic_unregister(void) |
| 34 | { |
| 35 | watchdog_unregister_governor(gov: &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"); |
| 43 |