marco@marco-laptop:/static/linux-kernel/git/linux-2.6$ make
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
  CHK     include/linux/compile.h
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
drivers/built-in.o: In function `ipg_ioctl':
ipg.c:(.text+0x6d0bc): undefined reference to `generic_mii_ioctl'
drivers/built-in.o: In function `ipg_get_settings':
ipg.c:(.text+0x6d0f4): undefined reference to `mii_ethtool_gset'
drivers/built-in.o: In function `ipg_set_settings':
ipg.c:(.text+0x6d12a): undefined reference to `mii_ethtool_sset'
drivers/built-in.o: In function `ipg_nway_reset':
ipg.c:(.text+0x6d15b): undefined reference to `mii_nway_restart'
make: *** [.tmp_vmlinux1] Fehler 1