'pm_power_off' is a function pointer, not a function, so need change
its type, and also need export it, or can not pass compiling with
allmodconfig. The related error:
MODPOST 2879 modules
ERROR: "pm_power_off" [drivers/char/ipmi/ipmi_poweroff.ko] undefined!
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
{
}
-void pm_power_off(void)
-{
-}
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);