NOTIFY_STOP_MASK  160 include/linux/notifier.h #define NOTIFY_BAD		(NOTIFY_STOP_MASK|0x0002)
NOTIFY_STOP_MASK  165 include/linux/notifier.h #define NOTIFY_STOP		(NOTIFY_OK|NOTIFY_STOP_MASK)
NOTIFY_STOP_MASK  171 include/linux/notifier.h 		return NOTIFY_STOP_MASK | (NOTIFY_OK - err);
NOTIFY_STOP_MASK  179 include/linux/notifier.h 	ret &= ~NOTIFY_STOP_MASK;