kdb_unregister    201 include/linux/kdb.h extern int kdb_unregister(char *);
kdb_unregister   2771 kernel/debug/kdb/kdb_main.c EXPORT_SYMBOL_GPL(kdb_unregister);
kdb_unregister     52 samples/kdb/kdb_hello.c 	kdb_unregister("hello");