tag	line	file	source code
apm_unregister_callback	72	drivers/char/apm_bios.c	X(apm_unregister_callback),
apm_unregister_callback	309	drivers/char/apm_bios.c	extern void  apm_unregister_callback(int (*)(apm_event_t));
apm_unregister_callback	82	include/linux/apm_bios.h	extern void    apm_unregister_callback(int (*callback)(apm_event_t));