486a64b29c
On some platforms, for example, Intel SoC FPGA platform, the watchdog is started in u-boot, and so kernel will create a timer and work to keep watchdog alive. But when user executes commands "poweroff" or "shutdown -h", the system is reset when watchdog triggers timeout even if WDOG_STOP_ON_REBOOT is set in watchdog driver. The root cause is that the watchdog is not stopped properly because the SYS_POWER_OFF case is not supported in notify callback function. So, add this case to stop watchdog when executing poweroff command. Signed-off-by: Meng Li <Meng.Li@windriver.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230814090616.1853263-1-Meng.Li@windriver.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.