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| author | Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> | 2016-10-07 15:39:55 +0300 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2016-10-08 10:27:13 +0200 |
| commit | f77710c4cda01ad9c3672fb2f97bdea9a94da92a (patch) | |
| tree | 95d9c0f16b6270d486f6b3873363799d46a45795 /drivers/watchdog/watchdog_pretimeout.h | |
| parent | ff84136cb6a4943f489ad037fe93f43be0573c23 (diff) | |
| download | linux-f77710c4cda01ad9c3672fb2f97bdea9a94da92a.tar.gz linux-f77710c4cda01ad9c3672fb2f97bdea9a94da92a.tar.bz2 linux-f77710c4cda01ad9c3672fb2f97bdea9a94da92a.zip | |
watchdog: pretimeout: add noop pretimeout governor
The change adds noop watchdog pretimeout governor, only an
informational message is printed to the kernel log buffer when a
watchdog triggers a pretimeout event.
While introducing the first pretimeout governor the selected design
assumes that the default pretimeout governor is selected by its name
and it is always built-in, thus the default pretimeout governor can
not be unregistered and the correspondent check can be removed from
the watchdog_unregister_governor() function.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/watchdog_pretimeout.h')
| -rw-r--r-- | drivers/watchdog/watchdog_pretimeout.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/watchdog/watchdog_pretimeout.h b/drivers/watchdog/watchdog_pretimeout.h index c6cd9f80adb2..c4b6f88dc9c9 100644 --- a/drivers/watchdog/watchdog_pretimeout.h +++ b/drivers/watchdog/watchdog_pretimeout.h @@ -20,6 +20,10 @@ int watchdog_register_pretimeout(struct watchdog_device *wdd); void watchdog_unregister_pretimeout(struct watchdog_device *wdd); int watchdog_pretimeout_governor_get(struct watchdog_device *wdd, char *buf); +#if IS_ENABLED(CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP) +#define WATCHDOG_PRETIMEOUT_DEFAULT_GOV "noop" +#endif + #else static inline int watchdog_register_pretimeout(struct watchdog_device *wdd) { |