From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 613E1CCA468 for ; Tue, 30 Sep 2025 10:05:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D1EEC10E29C; Tue, 30 Sep 2025 10:05:50 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="GhFmtE6P"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id C89B110E29C; Tue, 30 Sep 2025 10:05:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759226749; x=1790762749; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=npvtgCQVERmCarOfKSvie70oeT0wMLmYdU95Di6tZxk=; b=GhFmtE6Pk62pdzSsWHRsCoSE1jmrrgoNBTLQxdnyoeCS0nIh4LAW4Lr7 6awTtXibWYeqUujxIzJfXaU7eVc99iR9nTO88ItrRu6OXUYH2ckJnwi46 yrr7+kb+cvvamRzFTjRj14G14ezebdfA+TwxZ99MGpJh+Tx4CHUmZ7W2l vEBT7WUz/zI/JK8h7svroXeU+t6HzN+xuq7uZLVvjf5QIpZA5PJvYP6cO ICAV5lckd+GS1xKP6oYoWp/Yywl1GElRmbwXpkycru8/dmLNLZpobvEGN KB6MAReJVbdZ3GQVyXfL8E5F2SHTsdChMXHsNUKS9S5vQlqK8DVA2bIch w==; X-CSE-ConnectionGUID: svh840NuSPqiOiRziVay9w== X-CSE-MsgGUID: Tz5QUxMJRWyXokoxcLjyww== X-IronPort-AV: E=McAfee;i="6800,10657,11568"; a="72097643" X-IronPort-AV: E=Sophos;i="6.18,304,1751266800"; d="scan'208";a="72097643" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Sep 2025 03:05:49 -0700 X-CSE-ConnectionGUID: PV+0NBfaTwSqEdenvWAgLQ== X-CSE-MsgGUID: K51ZkYz/TQmtpVOD/uXFwQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,304,1751266800"; d="scan'208";a="178889093" Received: from lkp-server01.sh.intel.com (HELO 2f2a1232a4e4) ([10.239.97.150]) by fmviesa009.fm.intel.com with ESMTP; 30 Sep 2025 03:05:43 -0700 Received: from kbuild by 2f2a1232a4e4 with local (Exim 4.96) (envelope-from ) id 1v3XEq-00019L-1H; Tue, 30 Sep 2025 10:05:40 +0000 Date: Tue, 30 Sep 2025 18:05:36 +0800 From: kernel test robot To: =?iso-8859-1?Q?Lo=EFc?= Molinari , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Boris Brezillon , Rob Herring , Steven Price , Liviu Dudau , Melissa Wen , =?iso-8859-1?Q?Ma=EDra?= Canal , Hugh Dickins , Baolin Wang , Andrew Morton , Al Viro , =?utf-8?Q?Miko=C5=82aj?= Wasiak , Christian Brauner , Nitin Gote , Andi Shyti Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, kernel@collabora.com Subject: Re: [PATCH 2/8] drm/gem: Introduce drm_gem_get_unmapped_area() fop Message-ID: <202509301702.DL6CeU62-lkp@intel.com> References: <20250929200316.18417-3-loic.molinari@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250929200316.18417-3-loic.molinari@collabora.com> X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Hi Loïc, kernel test robot noticed the following build errors: [auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on linus/master v6.17 next-20250929] [cannot apply to akpm-mm/mm-everything] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Lo-c-Molinari/drm-shmem-helper-Add-huge-page-fault-handler/20250930-040600 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20250929200316.18417-3-loic.molinari%40collabora.com patch subject: [PATCH 2/8] drm/gem: Introduce drm_gem_get_unmapped_area() fop config: arm-randconfig-002-20250930 (https://download.01.org/0day-ci/archive/20250930/202509301702.DL6CeU62-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250930/202509301702.DL6CeU62-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202509301702.DL6CeU62-lkp@intel.com/ All errors (new ones prefixed by >>): drivers/gpu/drm/drm_gem.c: In function 'drm_gem_get_unmapped_area': >> drivers/gpu/drm/drm_gem.c:1280:9: error: implicit declaration of function 'mm_get_unmapped_area'; did you mean 'shmem_get_unmapped_area'? [-Werror=implicit-function-declaration] return mm_get_unmapped_area(current->mm, filp, uaddr, len, 0, flags); ^~~~~~~~~~~~~~~~~~~~ shmem_get_unmapped_area cc1: some warnings being treated as errors vim +1280 drivers/gpu/drm/drm_gem.c 1238 1239 /** 1240 * drm_gem_get_unmapped_area - get memory mapping region routine for GEM objects 1241 * @filp: DRM file pointer 1242 * @uaddr: User address hint 1243 * @len: Mapping length 1244 * @pgoff: Offset (in pages) 1245 * @flags: Mapping flags 1246 * 1247 * If a driver supports GEM object mapping, before ending up in drm_gem_mmap(), 1248 * mmap calls on the DRM file descriptor will first try to find a free linear 1249 * address space large enough for a mapping. Since GEM objects are backed by 1250 * shmem buffers, this should preferably be handled by the shmem virtual memory 1251 * filesystem which can appropriately align addresses to huge page sizes when 1252 * needed. 1253 * 1254 * Look up the GEM object based on the offset passed in (vma->vm_pgoff will 1255 * contain the fake offset we created) and call shmem_get_unmapped_area() with 1256 * the right file pointer. 1257 * 1258 * If a GEM object is not available at the given offset or if the caller is not 1259 * granted access to it, fall back to mm_get_unmapped_area(). 1260 */ 1261 unsigned long drm_gem_get_unmapped_area(struct file *filp, unsigned long uaddr, 1262 unsigned long len, unsigned long pgoff, 1263 unsigned long flags) 1264 { 1265 #ifdef CONFIG_TRANSPARENT_HUGEPAGE 1266 struct drm_gem_object *obj; 1267 unsigned long ret; 1268 1269 obj = drm_gem_object_lookup_from_offset(filp, pgoff, len >> PAGE_SHIFT); 1270 if (IS_ERR(obj)) 1271 return mm_get_unmapped_area(current->mm, filp, uaddr, len, 0, 1272 flags); 1273 1274 ret = shmem_get_unmapped_area(obj->filp, uaddr, len, 0, flags); 1275 1276 drm_gem_object_put(obj); 1277 1278 return ret; 1279 #else > 1280 return mm_get_unmapped_area(current->mm, filp, uaddr, len, 0, flags); 1281 #endif 1282 } 1283 EXPORT_SYMBOL(drm_gem_get_unmapped_area); 1284 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki