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| author |  Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| 2022-10-08 19:46:02 +0200 |
|---|---|---|
| committer |  Wim Van Sebroeck <wim@linux-watchdog.org>
| 2022-10-12 09:47:02 +0200 |
| commit | e25b091bed4946078c0998e4be77bc56824a9adf (patch) | |
| tree | b13c53f92809db30f0e762217e6861a1914dc435 /drivers/watchdog/watchdog_core.c | |
| parent | watchdog: twl4030_wdt: add missing mod_devicetable.h include (diff) | |
| download | linux-e25b091bed4946078c0998e4be77bc56824a9adf.tar.gz linux-e25b091bed4946078c0998e4be77bc56824a9adf.tar.bz2 linux-e25b091bed4946078c0998e4be77bc56824a9adf.zip | |
watchdog: Add tracing events for the most usual watchdog events
To simplify debugging which process touches a watchdog and when, add
tracing events for .start(), .set_timeout(), .ping() and .stop().
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221008174602.3972859-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog/watchdog_core.c')
| -rw-r--r-- | drivers/watchdog/watchdog_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c index 3fe8a7edc252..c777a612d932 100644 --- a/drivers/watchdog/watchdog_core.c +++ b/drivers/watchdog/watchdog_core.c @@ -38,6 +38,9 @@ #include "watchdog_core.h" /* For watchdog_dev_register/... */ +#define CREATE_TRACE_POINTS +#include <trace/events/watchdog.h> + static DEFINE_IDA(watchdog_ida); static int stop_on_reboot = -1; @@ -163,6 +166,7 @@ static int watchdog_reboot_notifier(struct notifier_block *nb, int ret; ret = wdd->ops->stop(wdd); + trace_watchdog_stop(wdd, ret); if (ret) return NOTIFY_BAD; } |