From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B5CC916DEB1 for ; Wed, 30 Jul 2025 03:37:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753846647; cv=none; b=KlWvNxzo3Va3YJADuNdBRRsgF7cy1bjUrAaefX/PXFDx9sxsSFaUdEaWaPI6jX3QYbA76L5t+dmucKXv2CvAStCf+1Y8n+MLyq6zQX+KzstZ2IUXv6hHWDKmSgXQo9x/AgqMzcU1J4Oe8+DCbkf+9OgAEJEuPIRmZhy0pEahRco= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753846647; c=relaxed/simple; bh=tErcFQmELNFkZAm+D7dIZT/EMgu6fqy/433QwaB7TmE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Yl2KtDzLsMErYN37vOIcO6yn1yiW5lJ6Azp2ZJvDYIQCQJWopCFhqhawa3g5mBJHJBXmCOAX5Aqu+Ga5EcYlhVRBS1Swb7rz7HvFVRTVldcGSTjx0lxDbVj0VS/s5jHmfsTIzHXYKpT7N6xyEyPhLIaEC0V6nUMd3yX6R2/w/aY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=dT0qXdHD; arc=none smtp.client-ip=192.198.163.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="dT0qXdHD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1753846645; x=1785382645; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=tErcFQmELNFkZAm+D7dIZT/EMgu6fqy/433QwaB7TmE=; b=dT0qXdHDWno7IMifKCXmMF0GWtg2JpuCIAsPmUiuz6YZsmmEy1oToc+Z RYaWv9NnB4s2p5eYtRM/0zz8s61s5xedSOpBuroW+/KPqjrMZpvbFJNwu BMvxffGGA/vDz7nlqRyAMS2e8xN9Mcwb0Thgnl4rdykiaRvUapA0VfaFe ahoFfBuraEtYtMsyQPXiKjrYY2cjlI0aD8ZmHxUSowKxSbUt8tb0nTrwd D84PV5aY3YkSGMaMONjgm7eBoaqOIEzEeGGjzIp+8K8nB+azQy5FYQ2HE /Z/ie/tBWijiKWqxCbiY6BJGHHC/Q5N0DW5NGHbfT5gR18EehMBq3yskq g==; X-CSE-ConnectionGUID: yq5iY9jgRNa1w4262XxczA== X-CSE-MsgGUID: 01qxMqv6Q9GRFuYSYvP64g== X-IronPort-AV: E=McAfee;i="6800,10657,11506"; a="59962345" X-IronPort-AV: E=Sophos;i="6.16,350,1744095600"; d="scan'208";a="59962345" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2025 20:37:23 -0700 X-CSE-ConnectionGUID: O4ZFxuSxRRmvq+dwbILU7Q== X-CSE-MsgGUID: bvmVB8HMQx6T0R2kOy7R4Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,350,1744095600"; d="scan'208";a="167051793" Received: from lkp-server01.sh.intel.com (HELO 160750d4a34c) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 29 Jul 2025 20:37:22 -0700 Received: from kbuild by 160750d4a34c with local (Exim 4.96) (envelope-from ) id 1ugxd1-0001xw-0J; Wed, 30 Jul 2025 03:37:19 +0000 Date: Wed, 30 Jul 2025 11:36:22 +0800 From: kernel test robot To: Zhang Qilong , arnd@arndb.de, gregkh@linuxfoundation.org Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org, wangkefeng.wang@huawei.com, zhangqilong3@huawei.com, sunnanyong@huawei.com Subject: Re: [PATCH] /dev/zero: try to align PMD_SIZE for private mapping Message-ID: <202507301149.ILLCBOyz-lkp@intel.com> References: <20250729134942.900517-1-zhangqilong3@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250729134942.900517-1-zhangqilong3@huawei.com> Hi Zhang, kernel test robot noticed the following build errors: [auto build test ERROR on char-misc/char-misc-testing] [also build test ERROR on char-misc/char-misc-next char-misc/char-misc-linus soc/for-next linus/master v6.16 next-20250729] [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/Zhang-Qilong/dev-zero-try-to-align-PMD_SIZE-for-private-mapping/20250729-215253 base: char-misc/char-misc-testing patch link: https://lore.kernel.org/r/20250729134942.900517-1-zhangqilong3%40huawei.com patch subject: [PATCH] /dev/zero: try to align PMD_SIZE for private mapping config: alpha-allnoconfig (https://download.01.org/0day-ci/archive/20250730/202507301149.ILLCBOyz-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250730/202507301149.ILLCBOyz-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/202507301149.ILLCBOyz-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/uapi/linux/posix_types.h:5, from include/uapi/linux/types.h:14, from include/linux/types.h:6, from include/linux/kasan-checks.h:5, from include/asm-generic/rwonce.h:26, from arch/alpha/include/asm/rwonce.h:33, from include/linux/compiler.h:390, from include/linux/export.h:5, from include/linux/linkage.h:7, from arch/alpha/include/asm/bug.h:5, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:6, from drivers/char/mem.c:12: drivers/char/mem.c: In function 'get_unmapped_area_zero': >> include/linux/stddef.h:8:14: error: called object is not a function or function pointer 8 | #define NULL ((void *)0) | ^ include/linux/huge_mm.h:536:33: note: in expansion of macro 'NULL' 536 | #define thp_get_unmapped_area NULL | ^~~~ drivers/char/mem.c:533:15: note: in expansion of macro 'thp_get_unmapped_area' 533 | ret = thp_get_unmapped_area(file, addr, len, pgoff, flags); | ^~~~~~~~~~~~~~~~~~~~~ vim +8 include/linux/stddef.h ^1da177e4c3f41 Linus Torvalds 2005-04-16 6 ^1da177e4c3f41 Linus Torvalds 2005-04-16 7 #undef NULL ^1da177e4c3f41 Linus Torvalds 2005-04-16 @8 #define NULL ((void *)0) 6e218287432472 Richard Knutsson 2006-09-30 9 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki