kobj_lookup       878 block/genhd.c  		kobj = kobj_lookup(bdev_map, devt, partno);
kobj_lookup       386 fs/char_dev.c  		kobj = kobj_lookup(cdev_map, inode->i_rdev, &idx);
kobj_lookup        17 include/linux/kobj_map.h struct kobject *kobj_lookup(struct kobj_map *, dev_t, int *);