From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750979AbdE3FNY (ORCPT ); Tue, 30 May 2017 01:13:24 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:41313 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750821AbdE3FNW (ORCPT ); Tue, 30 May 2017 01:13:22 -0400 X-AuditID: b6c32a2c-f79be6d0000051f7-e4-592cff6fac70 Subject: Re: panel-samsung-s6e3ha2.c:undefined reference to `backlight_device_unregister' To: Thierry Reding Cc: Arnd Bergmann , kbuild-all@01.org, linux-kernel@vger.kernel.org, Donghwa Lee , Hyungwon Hwang , Andrzej Hajda , Hoegeun Kwon From: Hoegeun Kwon Message-id: <0e7b11b7-c1ab-04fc-b079-bb87920aa461@samsung.com> Date: Tue, 30 May 2017 14:13:20 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-version: 1.0 In-reply-to: <201705281027.ZbATCgBx%fengguang.wu@intel.com> Content-type: text/plain; charset="windows-1252"; format="flowed" Content-transfer-encoding: 7bit Content-language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrIJsWRmVeSWpSXmKPExsWy7bCmum7+f51Ig4sXdS1urTvHavF30jF2 i+vn7SzeL+9is1g6o4/V4tj1icwWl3fNYbO4/ZvPgcPj/l52j9+/JjF69Da/Y/Po27KK0ePz JrkA1qhUm4zUxJTUIoXUvOT8lMy8dFsl7+B453hTMwNDXUNLC3MlhbzE3FRbJRefAF23zByg Q5QUyhJzSoFCAYnFxUr6djZF+aUlqQoZ+cUltkrRhoZGeoYG5npGRkZ6JsaxVkamQCUJqRlz zhgW3OSqWH/0AEsD40OOLkZODgkBE4mNjTdYIWwxiQv31rN1MXJxCAksZZS4vf8tE4TzmVHi zbU3QA4HWMfqh3IQ8R2MEve6/rBCOHcZJT5dnMMGMkpYIFri+atp7CC2iIC6xISXa1lAipgF vjBK/G2+CVbEJqAr8bXnOthUXgE7ibvLIkDCLAKqErO6+8FKRAUiJBZNmgg2h1dAUOLH5Hss IDangLXEsf03mEFsZgFHiQeLdrJC2PISm9e8hYqLSzS33gTbKyGwjl1iS/sORogPZCU2HWCG eNlFYvmn00wQtrDEq+Nb2CFsKYnujllQdr3E5R0nGSHmNDBK9E+cDZUwljjV1cgEsYxPovf3 E2gI8Up0tAlBlHhILPt0G2q+o8TtNb/ZIYHVxyhx8dkdlgmMCrOQ/DYLyT+zkPwzC8k/CxhZ VjGKpRYU56anFpsWGOoVJ+YWl+al6yXn525iBCdPLZ0djPcWeB9iFOBgVOLhfeCnEynEmlhW XJl7iFGCg1lJhFfzH1CINyWxsiq1KD++qDQntfgQoykw7CcyS4km5wMTe15JvKGJpYGJqZmx gbGhhaWSOK/GymsRQgLpiSWp2ampBalFMH1MHJxSDYyyrxxEJE9sFBHnFVL88cg8oeWjOB9z z1dvGynzx4t6srI3pfecF9ExT233nnf5xGYFhwyhqn77R48Yck/Y8bxZfSypib/PqkxUW+Zc kb9OxL6MkxFBBb+PlZYeVJs3O2Cz4fR5Ex+rfDb+4HZrWXDFrNuMJg+3sjy+dcg7T7xc5e7b 2Ycbk5RYijMSDbWYi4oTAf/TmUS0AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrAIsWRmVeSWpSXmKPExsVy+t9jAd38/zqRBhP28ljcWneO1eLvpGPs FtfP21m8X97FZrF0Rh+rxbHrE5ktLu+aw2Zx+zefA4fH/b3sHr9/TWL06G1+x+bRt2UVo8fn TXIBrFFuNhmpiSmpRQqpecn5KZl56bZKoSFuuhZKCnmJuam2ShG6viFBSgpliTmlQJ6RARpw cA5wD1bSt0twy5hzxrDgJlfF+qMHWBoYH3J0MXJwSAiYSKx+KNfFyAlkiklcuLeerYuRi0NI YBujxNcFS1ghnPuMEhOu3GYGqRIWiJZ4/moaO4gtIqAuMeHlWhaQImaBL4wSu163MUN0TGCU aF76mg2kik1AV+Jrz3UmkHW8AnYSd5dFgIRZBFQlZnX3g5WICkRI7Lp+gBXE5hUQlPgx+R4L iM0pYC1xbP8NsMXMArYSC96vY4Gw5SU2r3kLFReXaG69yTKBUXAWkvZZSFpmIWmZhaRlASPL Kkau1ILi3PTcYqMCo02MwNjbdlgrYAdj07noQ4wCHIxKPLwc6jqRQqyJZcWVuYcYJTiYlUR4 Nf8BhXhTEiurUovy44tKc1KLDzGaAr00kVlKNDkfmBbySuINTSyNTAzMzAyNDIzNlMR5JwR+ iRASSE8sSc1OTS1ILYLpY+LglGpg9LP7WFOTeXGCy+uZIsfuxR0VaW/eLie6Yf3ZQ8pSuQ9N kje3GRst1rT//VU1Uc1xZ1uYfompxrXHduHzb0Rn11bua9fx/+B8RO6k00eBnCkySkWipllt nNMvbsqfcfZfxBHXvkWHnHu/bl8aq7PeMbkqVc9t4n5XiwvuT7TTWBrl12pPV/ypxFKckWio xVxUnAgAhMFiZ9MCAAA= X-MTR: 20000000000000000@CPGS X-CMS-MailID: 20170530051319epcas5p49587cc1d0192717ad9dba1e6ebed7737 X-Msg-Generator: CA X-Sender-IP: 182.195.42.80 X-Local-Sender: =?UTF-8?B?6raM7ZqM6re8G1RpemVuIFBsYXRmb3JtIExhYihTL1fshLw=?= =?UTF-8?B?7YSwKRvsgrzshLHsoITsnpAbRW5naW5lZXI=?= X-Global-Sender: =?UTF-8?B?SG9lZ2V1biBLd29uG1RpemVuIFBsYXRmb3JtIExhYi4bU2Ft?= =?UTF-8?B?c3VuZyBFbGVjdHJvbmljcxtFbmdpbmVlcg==?= X-Sender-Code: =?UTF-8?B?QzEwG1RFTEUbQzEwVjgxMTE=?= CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20170528025312epcas4p38999224506eafbc82f2ed8b5a6ca340a X-RootMTR: 20170528025312epcas4p38999224506eafbc82f2ed8b5a6ca340a References: <201705281027.ZbATCgBx%fengguang.wu@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dear Thierry, This problem need to [1] patch. [1] https://patchwork.kernel.org/patch/9688585/ Best regards, Hoegeun On 05/28/2017 11:52 AM, kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 249f1efd8e3d58f86469fc305b0eda39db18d7ce > commit: ed29f9426d9bf1b5ec7e79dfb28f39de7b3a0069 drm/panel: Add support for S6E3HA2 panel driver on TM2 board > date: 7 weeks ago > config: x86_64-randconfig-s3-05280946 (attached as .config) > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 > reproduce: > git checkout ed29f9426d9bf1b5ec7e79dfb28f39de7b3a0069 > # save the attached .config to linux build tree > make ARCH=x86_64 > > All errors (new ones prefixed by >>): > > drivers/built-in.o: In function `s6e3ha2_remove': >>> panel-samsung-s6e3ha2.c:(.text+0x1cc45f): undefined reference to `backlight_device_unregister' > drivers/built-in.o: In function `s6e3ha2_probe': >>> panel-samsung-s6e3ha2.c:(.text+0x1cd24c): undefined reference to `backlight_device_register' > panel-samsung-s6e3ha2.c:(.text+0x1cd34d): undefined reference to `backlight_device_unregister' > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation