out-of-tree build-error

CC [M]  /opt/linux-2.6/drivers/gpu/drm/nouveau/nvc0_vm.o
  CC [M]  /opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_debugfs.o
  CC [M]  /opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.o
/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.c: In function ‘nouveau_nv40_backlight_init’:
/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.c:102:7: error: ‘struct backlight_properties’ has no member named ‘type’
/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.c:102:15: error: ‘BACKLIGHT_RAW’ undeclared (first use in this function)
/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.c:102:15: note: each undeclared identifier is reported only once for each function it appears in
/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.c: In function ‘nouveau_nv50_backlight_init’:
/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.c:127:7: error: ‘struct backlight_properties’ has no member named ‘type’
/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.c:127:15: error: ‘BACKLIGHT_RAW’ undeclared (first use in this function)
make[3]: *** [/opt/linux-2.6/drivers/gpu/drm/nouveau/nouveau_backlight.o] Error 1
make[2]: *** [/opt/linux-2.6/drivers/gpu/drm/nouveau] Error 2
make[1]: *** [_module_/opt/linux-2.6/drivers/gpu/drm] Error 2
make[1]: Leaving directory `/usr/src/kernels/2.6.38.2-9.fc15.i686'
make: *** [modules] Error 2