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SubjectRe: linux-next: Tree for October 28 (acpi_video)
On 10/29/10 11:18, Len Brown wrote:
>> drivers/built-in.o: In function `acpi_video_bus_put_one_device':
>> video.c:(.text+0x9d794): undefined reference to `backlight_device_unregister'
>
> Invalid .config, as ACPI_VIDEO depends on BACKLIGHT_CLASS_DEVICE, which is not set.
>
> This breakage is the infamous "select in Kconfig doesn't" bug,
> which has apparently claimed a new victim, STUB_POULSBO:
>
> (STUB_POULSBO && HAS_IOMEM && PCI && ACPI || DRM_I915 && <choice> &&
> AGP_INTEL && ACPI || DRM_NOUVEAU && STAGING && !STAGING_EXCLUDE_BUILD &&
> DRM && PCI && ACPI) selects ACPI_VIDEO which has unmet direct dependencies
> (ACPI && X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL && INPUT)
>
> commit e26fd1199ebab0d469fc3e037da5932d382f0669
> Author: Lee, Chun-Yi <joeyli.kernel@gmail.com>
> Date: Wed Oct 20 13:51:19 2010 +0800
>
> gpu: Add Intel GMA500(Poulsbo) Stub Driver
>
> Currently, there have no GMA500(Poulsbo) native video driver to
> support
> intel opregion. So, use this stub driver to enable the acpi backlight
> control sysfs entry files by requrest acpi_video_register.
>
> [airlied: fix warnings]
>
> Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
> Signed-off-by: Dave Airlie <airlied@redhat.com>
>

I think that it needs this patch (from 2010-OCT-13):
http://lkml.org/lkml/2010/10/13/270

--
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***


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