From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753523AbaJAR54 (ORCPT ); Wed, 1 Oct 2014 13:57:56 -0400 Received: from mga11.intel.com ([192.55.52.93]:52414 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753075AbaJAR5y (ORCPT ); Wed, 1 Oct 2014 13:57:54 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,633,1406617200"; d="scan'208";a="599433520" From: Jani Nikula To: Jim Davis , Stephen Rothwell , linux-next , linux-kernel , David Airlie , daniel.vetter@intel.com, intel-gfx@lists.freedesktop.org, dri-devel Subject: Re: randconfig build error with next-20141001, in drivers/gpu/drm/i915 In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: User-Agent: Notmuch/0.18.1+110~gd9ec63c (http://notmuchmail.org) Emacs/24.3.1 (x86_64-pc-linux-gnu) Date: Wed, 01 Oct 2014 20:57:43 +0300 Message-ID: <87fvf73c6g.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 01 Oct 2014, Jim Davis wrote: > Building with the attached random configuration file, > > warning: (VIDEO_TIMBERDALE) selects TIMB_DMA which has unmet direct > dependencies (DMADEVICES && MFD_TIMBERDALE) > warning: (USB_OTG_FSM && FSL_USB2_OTG && USB_MV_OTG) selects USB_OTG > which has unmet direct dependencies (USB_SUPPORT && USB && PM_RUNTIME) > > drivers/built-in.o: In function `intel_panel_setup_backlight': > (.text+0x11855d): undefined reference to `backlight_device_register' > drivers/built-in.o: In function `intel_panel_destroy_backlight': > (.text+0x118624): undefined reference to `backlight_device_unregister' > make: *** [vmlinux] Error 1 It's the combination: > CONFIG_DRM_I915=y > CONFIG_BACKLIGHT_CLASS_DEVICE=m Not sure what the Kconfig magic spell needs to be when we don't want to depend on CONFIG_BACKLIGHT_CLASS_DEVICE but we'll use it if it's enabled (y or m). BR, Jani. -- Jani Nikula, Intel Open Source Technology Center