Hi Damien, > Many drivers implements the exact same piece of code to register a > reboot notifier. It can be nice to factorize this in the watchdog core. > > The first patch adds a new helper function, watchdog_stop_on_reboot, > which registers a reboot notifier block for this device. If used, the > watchdog core will care about stopping the watchdog when receiving a > reboot notification. > > The following patches bring this change to the current watchdog drivers > that use watchdog_core. > > This action is done only when the reboot code is SYS_HALT or SYS_DOWN, > since that is what most of the drivers are doing. > > Only 3 drivers, including gpio_wdt, do not stop the watchdog on > SYS_DOWN. So for this watchdog, it will now stop on reboot if > "always-running" is not set, whereas it did not prior to this patchset. > > This change has been compile-tested with allyesconfig on arm. > It has been tested with (not mainlined yet) ts-4800's watchdog driver. > > > Changes in v2: > - call ops->stop only if watchdog is active > - squashed gpio_wdt-related commits to keep a consistent behaviour. > > Damien Riegel (6): > watchdog: core: add reboot notifier support > watchdog: bcm47xx_wdt: use core reboot notifier > watchdog: cadence_wdt: use core reboot notifier > watchdog: gpio_wdt: use core reboot notifier > watchdog: softdog: use core reboot notifier > watchdog: w83627hf_wdt: use core reboot notifier > > Documentation/watchdog/watchdog-kernel-api.txt | 8 ++++++ > drivers/watchdog/bcm47xx_wdt.c | 24 ++--------------- > drivers/watchdog/cadence_wdt.c | 36 +------------------------ > drivers/watchdog/gpio_wdt.c | 35 ++---------------------- > drivers/watchdog/softdog.c | 30 ++------------------- > drivers/watchdog/w83627hf_wdt.c | 32 ++-------------------- > drivers/watchdog/watchdog_core.c | 37 ++++++++++++++++++++++++++ > include/linux/bcm47xx_wdt.h | 2 -- > include/linux/watchdog.h | 9 +++++++ > 9 files changed, 63 insertions(+), 150 deletions(-) This patchset has been added to linux-watchdog-next. Kind regards, Wim. -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
