关于内核编译问题?

Alpha1981

drivers/usb/usbdrv.o(.text+0xb630): In function `alloc_td':
/home/sitsang/linux-2.4.19/drivers/usb/usb-uhci.c:257: undefined reference to `pci_pool_alloc'
drivers/usb/usbdrv.o(.text+0xb820): In function `delete_desc':
/home/sitsang/linux-2.4.19/drivers/usb/usb-uhci.c:368: undefined reference to `pci_pool_free'
drivers/usb/usbdrv.o(.text+0xb844): In function `alloc_qh':
/home/sitsang/linux-2.4.19/drivers/usb/usb-uhci.c:377: undefined reference to `pci_pool_alloc'
drivers/usb/usbdrv.o(.text+0xbb3c): In function `cleanup_skel':
/home/sitsang/linux-2.4.19/drivers/usb/usb-uhci.c:551: undefined reference to `pci_pool_destroy'
drivers/usb/usbdrv.o(.text+0xbc34): In function `init_skel':
/home/sitsang/linux-2.4.19/drivers/usb/usb-uhci.c:577: undefined reference to `pci_pool_create'
make: *** [vmlinux] Error 1
请问这个怎么解决?