2.4.23-pre2 modular ide-core broken

Depmod reports the following unresolved symbols:

depmod: *** Unresolved symbols in /lib/modules/2.4.23-pre2-4GB-SMP/kernel/drivers/ide/ide-core.o

depmod:         ide_wait_hwif_ready
depmod:         ide_probe_for_drive
depmod:         ide_probe_reset
depmod:         ide_tune_drives

Thus ide can't be modular