Lee wrote:Hi list,
compiling 2.6.30-rc4 with following options will result in an compile
error:
CONFIG_DRM_I915=y
CONFIG_ACPI_VIDEO=m
drivers/video/backlight/backlight.c: In function
âbacklight_device_registerâ:
drivers/video/backlight/backlight.c:247: warning: format not a string
literal and no format arguments
drivers/video/output.c: In function âvideo_output_registerâ:
drivers/video/output.c:99: warning: format not a string literal and no
format arguments
drivers/usb/storage/libusual.c: In function âusu_probe_threadâ:
drivers/usb/storage/libusual.c:159: warning: format not a string literal
and no format arguments
drivers/built-in.o: In function `intel_opregion_free':
(.text+0xaf051): undefined reference to `acpi_video_exit'
drivers/built-in.o: In function `intel_opregion_init':
(.text+0xaf411): undefined reference to `acpi_video_register'
make[1]: *** [.tmp_vmlinux1] Error 1
make[1]: Leaving directory `/home/randall/kernel-source'
make: *** [debian/stamp/build/kernel] Error 2
Compiling the kernel with both options as module or both options
built-in results in a working kernel.
Len Brown posted a patch to fix this, although I can't find it in
any email archives just now, so I'm appending it below.