jasonsdesktop:/home/jason/ivtv-0.2.0-rc2f/driver# make
make -C /lib/modules/2.6.11-1-386/build SUBDIRS=/home/jason/ivtv-0.2.0-rc2f/driver modules
make[1]: Entering directory `/usr/src/kernel-headers-2.6.11-1-386'
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/msp3400.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/saa7115.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/tveeprom.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-osd.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-queue.o
/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-queue.c: In function `ivtv_prep_user_dma':
/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-queue.c:744: warning: implicit declaration of function `pci_dma_sync_single'
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-dma.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-driver.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-fileops.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-i2c.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-streams.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-firmware.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-reset.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-gpio.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-irq.o
/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-irq.c: In function `ivtv_DMA_done':
/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-irq.c:268: warning: implicit declaration of function `pci_dma_sync_single'
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-mailbox.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-vbi.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-kthreads.o
/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-kthreads.c: In function `dec_work_handler':
/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-kthreads.c:792: warning: implicit declaration of function `pci_dma_sync_single'
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-audio.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-ioctl.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-controls.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-video.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-cards.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/v4l1-compat.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv.o
  CC [M]  /home/jason/ivtv-0.2.0-rc2f/driver/saa7127.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-fb.o
  Building modules, stage 2.
  MODPOST
*** Warning: "cleanup_module" [/home/jason/ivtv-0.2.0-rc2f/driver/tveeprom.ko] undefined!
*** Warning: "init_module" [/home/jason/ivtv-0.2.0-rc2f/driver/tveeprom.ko] undefined!
*** Warning: "cleanup_module" [/home/jason/ivtv-0.2.0-rc2f/driver/saa7127.ko] undefined!
*** Warning: "init_module" [/home/jason/ivtv-0.2.0-rc2f/driver/saa7127.ko] undefined!
*** Warning: "cleanup_module" [/home/jason/ivtv-0.2.0-rc2f/driver/saa7115.ko] undefined!
*** Warning: "init_module" [/home/jason/ivtv-0.2.0-rc2f/driver/saa7115.ko] undefined!
*** Warning: "cleanup_module" [/home/jason/ivtv-0.2.0-rc2f/driver/msp3400.ko] undefined!
*** Warning: "init_module" [/home/jason/ivtv-0.2.0-rc2f/driver/msp3400.ko] undefined!
*** Warning: "cleanup_module" [/home/jason/ivtv-0.2.0-rc2f/driver/ivtv.ko] undefined!
*** Warning: "init_module" [/home/jason/ivtv-0.2.0-rc2f/driver/ivtv.ko] undefined!
*** Warning: "pci_dma_sync_single" [/home/jason/ivtv-0.2.0-rc2f/driver/ivtv.ko] undefined!
*** Warning: "cleanup_module" [/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-fb.ko] undefined!
*** Warning: "init_module" [/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-fb.ko] undefined!
*** Warning: "pci_dma_sync_single" [/home/jason/ivtv-0.2.0-rc2f/driver/ivtv-fb.ko] undefined!
  CC      /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-fb.mod.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv-fb.ko
  CC      /home/jason/ivtv-0.2.0-rc2f/driver/ivtv.mod.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/ivtv.ko
  CC      /home/jason/ivtv-0.2.0-rc2f/driver/msp3400.mod.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/msp3400.ko
  CC      /home/jason/ivtv-0.2.0-rc2f/driver/saa7115.mod.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/saa7115.ko
  CC      /home/jason/ivtv-0.2.0-rc2f/driver/saa7127.mod.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/saa7127.ko
  CC      /home/jason/ivtv-0.2.0-rc2f/driver/tveeprom.mod.o
  LD [M]  /home/jason/ivtv-0.2.0-rc2f/driver/tveeprom.ko
make[1]: Leaving directory `/usr/src/kernel-headers-2.6.11-1-386'

Any 'has no CRC' warnings are harmless and can be ignored.