On Mon, Aug 09, 2021 at 06:20:35PM +0200, Ahmad Fatoum wrote: > Migrating the driver lets us drop the watchdog misc device boilerplate > and reduces size by 285 lines. It also brings us support for new > functionality like CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED. > > This incurs a slight backwards-compatibility break, because the new > kernel watchdog API doesn't support unloading modules for drivers > whose watchdog hardware is reported to be running. > > This means following scenario will be no longer supported: > - BIOS has enabled watchdog > - Module is loaded and unloaded without opening watchdog > - module_exit is expected to succeed and disable watchdog HW > > Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
