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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F108C46CA0 for ; Sat, 25 Nov 2023 20:00:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229982AbjKYUAt (ORCPT ); Sat, 25 Nov 2023 15:00:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229456AbjKYUAo (ORCPT ); Sat, 25 Nov 2023 15:00:44 -0500 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8948EE for ; Sat, 25 Nov 2023 12:00:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700942450; x=1732478450; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=pn1nn4Uav0B2OyVdmkxjy4PLq+NCw1RTFiLnTs5OM9w=; b=jNU3EuUXFLBNqTg/YYC95qkO3Y2uPqk2Ma/RVklv160dciQzH2feQJDs yPEijELDyw2V3tg9sgc3EOJN4lA08TXzcq15ZhBHx1N8S+GM8AcCRCgsT TgzlIP+V2FcYLJWZ1P5LgFZE1oIevFUm4QlW9tlrEDYGPKepL7+Ks4OHq nBu1Vqxued2bnFrunfE9HgxruT+Hb6qxvuOAqdTJs2ET7UBSbZ3jY9beh 9bddrWfBhvut5H7tDbKlyA5/MHPly/pCs4IlCS0OOR2hKTOzejiQ6eqdg tVtwPfAmxF9mzNQ/vwekhhZ8KI2tyj68MUNsB8ZTcTYzuHyjSVpsXjxLc A==; X-IronPort-AV: E=McAfee;i="6600,9927,10905"; a="371884461" X-IronPort-AV: E=Sophos;i="6.04,227,1695711600"; d="scan'208";a="371884461" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Nov 2023 12:00:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10905"; a="885570412" X-IronPort-AV: E=Sophos;i="6.04,227,1695711600"; d="scan'208";a="885570412" Received: from lkp-server01.sh.intel.com (HELO d584ee6ebdcc) ([10.239.97.150]) by fmsmga002.fm.intel.com with ESMTP; 25 Nov 2023 12:00:46 -0800 Received: from kbuild by d584ee6ebdcc with local (Exim 4.96) (envelope-from ) id 1r6ypY-0004Ma-0I; Sat, 25 Nov 2023 20:00:44 +0000 Date: Sun, 26 Nov 2023 04:00:30 +0800 From: kernel test robot To: Rong Tao , Andrew Morton , Catalin Marinas , Florent Revest , Kees Cook , David Hildenbrand , Stefan Roesch , Andy Chiu , Josh Triplett , Joey Gouly , Oleg Nesterov , Miguel Ojeda , Ondrej Mosnacek , linux-kernel@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , rtoax@foxmail.com, rongtao@cestc.cn Subject: Re: [PATCH] prctl: Get private anonymous memory region name Message-ID: <202311260319.o8HoCceP-lkp@intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Rong, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.7-rc2 next-20231124] [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/Rong-Tao/prctl-Get-private-anonymous-memory-region-name/20231125-220925 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/tencent_977CBF8E8CA6234A1B740A35655D5D7EAA0A%40qq.com patch subject: [PATCH] prctl: Get private anonymous memory region name config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231126/202311260319.o8HoCceP-lkp@intel.com/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231126/202311260319.o8HoCceP-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/202311260319.o8HoCceP-lkp@intel.com/ All errors (new ones prefixed by >>): >> kernel/sys.c:2371:3: error: expected expression const struct anon_vma_name *anon_name = NULL; ^ >> kernel/sys.c:2377:3: error: use of undeclared identifier 'anon_name' anon_name = madvise_get_anon_name(mm, addr); ^ kernel/sys.c:2378:8: error: use of undeclared identifier 'anon_name' if (!anon_name) { ^ kernel/sys.c:2385:13: error: use of undeclared identifier 'anon_name' strlen(anon_name->name) + 1)) ^ kernel/sys.c:2384:42: error: use of undeclared identifier 'anon_name' if (copy_to_user((char __user *)u_buf, anon_name->name, ^ kernel/sys.c:2389:21: error: use of undeclared identifier 'anon_name' anon_vma_name_put(anon_name); ^ 6 errors generated. vim +2371 kernel/sys.c 2361 2362 static int prctl_get_vma(unsigned long opt, unsigned long addr, 2363 unsigned long buf, unsigned long arg) 2364 { 2365 struct mm_struct *mm = current->mm; 2366 const char __user *u_buf; 2367 int error; 2368 2369 switch (opt) { 2370 case PR_GET_VMA_ANON_NAME: > 2371 const struct anon_vma_name *anon_name = NULL; 2372 2373 u_buf = (const char __user *)buf; 2374 error = 0; 2375 2376 mmap_read_lock(mm); > 2377 anon_name = madvise_get_anon_name(mm, addr); 2378 if (!anon_name) { 2379 mmap_read_unlock(mm); 2380 error = -EFAULT; 2381 break; 2382 } 2383 2384 if (copy_to_user((char __user *)u_buf, anon_name->name, 2385 strlen(anon_name->name) + 1)) 2386 error = -EFAULT; 2387 2388 mmap_read_unlock(mm); 2389 anon_vma_name_put(anon_name); 2390 break; 2391 default: 2392 error = -EINVAL; 2393 } 2394 return error; 2395 } 2396 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki