Re: [BUG] 2.6.30-rc4: compile fail with CONFIG_DRM_I915=y

From: Lee
Date: Sun May 03 2009 - 05:39:20 EST


Randy Dunlap wrote:
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.



Thanks! I'll keep an eye on it that it's merged for the next rc.
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