1EXTERN( 2read_from_io 3write_to_io 4ioremap 5iounmap 6sys_hwi_create 7sys_hwi_resume 8sys_hwi_delete 9sys_hwi_disable 10sys_hwi_enable 11sys_hwi_notify 12drv_virt_to_phys 13tee_drv_entry 14copy_from_client 15copy_to_client 16tee_map_secure 17tee_map_nonsecure 18get_tlv_sharedmem 19register_crypto_rand_driver 20) 21