From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: Re: ERROR: "pm_vt_switch_unregister"
	[drivers/video/fb.ko] undefined!
Date: Fri, 8 Feb 2013 10:51:48 +0100
Message-ID: <CAKMK7uGCaR4dg8u5EOeyLVovKiisOTiWObixYidqJho2GVfr4w@mail.gmail.com>
References: <5114c59c.TwL73aRElKJaIFRT%fengguang.wu@intel.com>
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To: kbuild test robot <fengguang.wu@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, intel-gfx <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org

On Fri, Feb 8, 2013 at 10:30 AM, kbuild test robot
<fengguang.wu@intel.com> wrote:
> tree:   git://people.freedesktop.org/~danvet/drm-intel.git drm-intel-nightly
> head:   69f0d09dfd2d0579241389aee18ba50aa39d0de2
> commit: d6bc5b0603e5bea1b5a214d21c0aba8518f1a01f fb: add support for drivers not needing VT switch at suspend/resume time
> date:   2 days ago
> config: i386-randconfig-b031 (attached as .config)
>
> All error/warnings:
>
>>> ERROR: "pm_vt_switch_unregister" [drivers/video/fb.ko] undefined!
>>> ERROR: "pm_vt_switch_required" [drivers/video/fb.ko] undefined!

I guess there's a select CONFIG_VT_CONSOLE_SLEEP missing somewhere ...
Or at least a few stubs in headers if that's not selected. The
offending config option itself was created itself to fix compile fail:

commit 37cce26b32142f09a8967f6d238178af654b20de
Author: H Hartley Sweeten <hartleys@visionengravers.com>
Date:   Wed Sep 21 22:47:55 2011 +0200

    PM / VT: Cleanup #if defined uglyness and fix compile error

Jesse, Rafael?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch