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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 24DC9C4338F for ; Wed, 11 Aug 2021 08:14:00 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AAB2760EB5 for ; Wed, 11 Aug 2021 08:13:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org AAB2760EB5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 2675F6B0071; Wed, 11 Aug 2021 04:13:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1F07A6B0072; Wed, 11 Aug 2021 04:13:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0BB038D0001; Wed, 11 Aug 2021 04:13:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0113.hostedemail.com [216.40.44.113]) by kanga.kvack.org (Postfix) with ESMTP id E2C466B0071 for ; Wed, 11 Aug 2021 04:13:58 -0400 (EDT) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 81FBD235DE for ; Wed, 11 Aug 2021 08:13:58 +0000 (UTC) X-FDA: 78462086556.19.EB2ADA8 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by imf02.hostedemail.com (Postfix) with ESMTP id EEA727009EED for ; Wed, 11 Aug 2021 08:13:56 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10072"; a="214813147" X-IronPort-AV: E=Sophos;i="5.84,311,1620716400"; d="scan'208";a="214813147" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Aug 2021 01:13:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,311,1620716400"; d="scan'208";a="672681843" Received: from shbuild999.sh.intel.com (HELO localhost) ([10.239.146.151]) by fmsmga006.fm.intel.com with ESMTP; 11 Aug 2021 01:13:54 -0700 Date: Wed, 11 Aug 2021 16:13:53 +0800 From: Feng Tang To: Dan Carpenter Cc: "sfr@canb.auug.org.au" , "linux-mm@kvack.org" , "Widawsky, Ben" Subject: Re: [bug report] Merge branch 'akpm-current/current' Message-ID: <20210811081353.GA84640@shbuild999.sh.intel.com> References: <20210811080600.GA15247@kili> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210811080600.GA15247@kili> User-Agent: Mutt/1.5.24 (2015-08-30) X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: EEA727009EED Authentication-Results: imf02.hostedemail.com; dkim=none; spf=none (imf02.hostedemail.com: domain of feng.tang@intel.com has no SPF policy when checking 192.55.52.115) smtp.mailfrom=feng.tang@intel.com; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=intel.com (policy=none) X-Stat-Signature: 7m5yces5dapdhcqw6gep6gmy4af3ct8b X-HE-Tag: 1628669636-864042 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: Hi Dan, On Wed, Aug 11, 2021 at 04:06:00PM +0800, Dan Carpenter wrote: > [ I do a git show 2db9f815409f and it doesn't show that hugetlb.c was > modified but it the git log the merge commit is listed. I don't > know git well enough to explain it. But I think this was a merge > issue. - dan ] > > Hello Stephen Rothwell, > > The patch 2db9f815409f: "Merge branch 'akpm-current/current'" from > Aug 10, 2021, leads to the following > Smatch static checker warning: > > mm/hugetlb.c:2172 alloc_buddy_huge_page_with_mpol() > error: uninitialized symbol 'page'. > > mm/hugetlb.c > 2151 static > 2152 struct page *alloc_buddy_huge_page_with_mpol(struct hstate *h, > 2153 struct vm_area_struct *vma, unsigned long addr) > 2154 { > 2155 struct page *page; > > This should be "struct page *page = NULL;" Thanks for the report! This was also reported by Nathan Chancellor, who gave a quick fix: https://lore.kernel.org/lkml/20210810200632.3812797-1-nathan@kernel.org/ and Andrew has taken it to the -mm tree. Sorry for the inconvenience. - Feng