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 X-Spam-Level: X-Spam-Status: No, score=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC517C47080 for ; Sun, 23 May 2021 08:34:20 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4D8AE61168 for ; Sun, 23 May 2021 08:34:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D8AE61168 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E8D028E009A; Sun, 23 May 2021 04:34:18 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E34298E007F; Sun, 23 May 2021 04:34:18 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A18B78E009A; Sun, 23 May 2021 04:34:18 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0246.hostedemail.com [216.40.44.246]) by kanga.kvack.org (Postfix) with ESMTP id 5FEED8E007F for ; Sun, 23 May 2021 04:34:18 -0400 (EDT) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id D119675B2 for ; Sun, 23 May 2021 08:34:17 +0000 (UTC) X-FDA: 78171833754.09.1BE2F8A Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by imf18.hostedemail.com (Postfix) with ESMTP id 333C22000986 for ; Sun, 23 May 2021 08:34:12 +0000 (UTC) IronPort-SDR: Sa+h93i62uMLpYBNMToK1TeJQdWCLjwnl14o5qnqZw//4ndDSWr1xk20TKvheGNzYkrVEJCwvi lpi0plQ8dQcw== X-IronPort-AV: E=McAfee;i="6200,9189,9992"; a="181377574" X-IronPort-AV: E=Sophos;i="5.82,319,1613462400"; d="scan'208";a="181377574" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 May 2021 01:34:13 -0700 IronPort-SDR: JJgywFEP/QGY2z4fJL57W7hUluSKzE2+menSn/8edP/v+2iF2mqvm7oU/Y4tUjpUkhS26weKPu 0LiUYIiQBr6A== X-IronPort-AV: E=Sophos;i="5.82,319,1613462400"; d="scan'208";a="475340762" Received: from rongch2-mobl.ccr.corp.intel.com (HELO [10.249.169.100]) ([10.249.169.100]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 May 2021 01:34:11 -0700 Subject: Re: [linux-next:master] BUILD REGRESSION 8dca2cd055ffb78b37f52f0bf0bd20c249619c4d To: Andrew Morton , kernel test robot Cc: Linux Memory Management List , "Aneesh Kumar K.V" References: <60a91db6.v1iiGnzpw2gTf48Z%lkp@intel.com> <20210522112947.5a5116759db138f32f36d151@linux-foundation.org> From: "Chen, Rong A" Message-ID: <4fa6822e-fe6d-9cc0-a094-844a70e24219@intel.com> Date: Sun, 23 May 2021 16:34:08 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20210522112947.5a5116759db138f32f36d151@linux-foundation.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 333C22000986 Authentication-Results: imf18.hostedemail.com; dkim=none; spf=none (imf18.hostedemail.com: domain of rong.a.chen@intel.com has no SPF policy when checking 192.55.52.136) smtp.mailfrom=rong.a.chen@intel.com; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=intel.com (policy=none) X-Rspamd-Server: rspam03 X-Stat-Signature: w9qtffrbd9bh5rip6ajcewi9hy7whjy8 X-HE-Tag: 1621758852-698252 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 5/23/2021 2:29 AM, Andrew Morton wrote: > On Sat, 22 May 2021 23:05:26 +0800 kernel test robot wrote: > >> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master >> branch HEAD: 8dca2cd055ffb78b37f52f0bf0bd20c249619c4d Add linux-next specific files for 20210521 >> >> mm/mremap.c:306:8: warning: variable 'pud' set but not used [-Wunused-but-set-variable] >> >> ... >> >> |-- arm64-randconfig-r014-20210521 >> | |-- kernel-kallsyms.c:warning:no-previous-prototype-for-kallsyms_lookup_buildid >> | `-- mm-mremap.c:warning:variable-pud-set-but-not-used >> >> ... >> >> |-- i386-allmodconfig >> | |-- drivers-net-wireless-ath-ath10k-htt_rx.c:warning:variable-more_frags-set-but-not-used >> | |-- kernel-kallsyms.c:warning:no-previous-prototype-for-kallsyms_lookup_buildid >> | `-- mm-mremap.c:warning:variable-pud-set-but-not-used >> > > I can't reproduce this. move_normal_pud() does > > pud_populate(mm, new_pud, (pmd_t *)pud_page_vaddr(pud)); > > and I can't see a version of pud_page_vaddr() which doesn't reference its > argument. > > Maybe it was fixed since this release of next. > Hi Andrew, The original report can be found at https://lore.kernel.org/linux-mm/202105180059.7qbrqAhs-lkp@intel.com/ Best Regards, Rong Chen