kgdb_io           298 include/linux/kgdb.h extern int kgdb_register_io_module(struct kgdb_io *local_kgdb_io_ops);
kgdb_io           299 include/linux/kgdb.h extern void kgdb_unregister_io_module(struct kgdb_io *local_kgdb_io_ops);
kgdb_io           300 include/linux/kgdb.h extern struct kgdb_io *dbg_io_ops;