linux-kernel - Re: 2.6.36-rc8 -- drivers/built-in.o: In function `nouveau_acpi_edid': (.text+0xf7c04): undefined reference to `acpi_video_get

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Message-ID: <adad3r9hn1x.fsf@cisco.com>
Date:	Sat, 16 Oct 2010 13:58:50 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Miles Lane <miles.lane@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Ben Skeggs <bskeggs@...hat.com>,
	Maarten Maathuis <madman2003@...il.com>
Subject: Re: 2.6.36-rc8 -- drivers/built-in.o: In function `nouveau_acpi_edid': (.text+0xf7c04): undefined reference to `acpi_video_get_edid'

 > drivers/built-in.o: In function `nouveau_acpi_edid':
 > (.text+0xf7c04): undefined reference to `acpi_video_get_edid'
 > make: *** [.tmp_vmlinux1] Error 1

The problem is:

 > CONFIG_ACPI=y
 > CONFIG_ACPI_VIDEO=m

but

 > CONFIG_DRM_NOUVEAU=y

So the built-in nouveau code tries to reference the modular acpi video
code.  I'm not sure what the correct fix is... does the following make
things work?

 drivers/gpu/drm/nouveau/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index e9b06e4..4e295b5 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -28,6 +28,6 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
 nouveau-$(CONFIG_DRM_NOUVEAU_DEBUG) += nouveau_debugfs.o
 nouveau-$(CONFIG_COMPAT) += nouveau_ioc32.o
 nouveau-$(CONFIG_DRM_NOUVEAU_BACKLIGHT) += nouveau_backlight.o
-nouveau-$(CONFIG_ACPI) += nouveau_acpi.o
+nouveau-$(CONFIG_ACPI_VIDEO) += nouveau_acpi.o
 
 obj-$(CONFIG_DRM_NOUVEAU)+= nouveau.o
--
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