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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, 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 3E1B3C3A589 for ; Tue, 20 Aug 2019 06:46:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15F6C22CF4 for ; Tue, 20 Aug 2019 06:46:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729339AbfHTGqf (ORCPT ); Tue, 20 Aug 2019 02:46:35 -0400 Received: from mga04.intel.com ([192.55.52.120]:11641 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729310AbfHTGqf (ORCPT ); Tue, 20 Aug 2019 02:46:35 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Aug 2019 23:46:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,407,1559545200"; d="scan'208";a="172359689" Received: from pl-dbox.sh.intel.com (HELO intel.com) ([10.239.13.128]) by orsmga008.jf.intel.com with ESMTP; 19 Aug 2019 23:46:32 -0700 Date: Tue, 20 Aug 2019 14:50:38 +0800 From: Philip Li To: Gao Xiang Cc: kbuild test robot , kbuild-all@01.org, devel@driverdev.osuosl.org, linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org, LKML , stable@vger.kernel.org, Fang Wei , Miao Xie Subject: Re: [PATCH] staging: erofs: fix an error handling in erofs_readdir() Message-ID: <20190820065038.GG4479@intel.com> References: <20190818031855.9723-1-hsiangkao@aol.com> <201908182116.RRufKUpl%lkp@intel.com> <20190818132503.GA26232@hsiangkao-HP-ZHAN-66-Pro-G1> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190818132503.GA26232@hsiangkao-HP-ZHAN-66-Pro-G1> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Aug 18, 2019 at 09:25:04PM +0800, Gao Xiang wrote: > On Sun, Aug 18, 2019 at 09:17:52PM +0800, kbuild test robot wrote: > > Hi Gao, > > > > I love your patch! Yet something to improve: > > > > [auto build test ERROR on linus/master] > > [cannot apply to v5.3-rc4 next-20190816] > > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > ... those patches should be applied to staging tree > since linux-next has not been updated yet... thanks for the feedback, we will consider this to our todo list. > > Thanks, > Gao Xiang > > > > > url: https://github.com/0day-ci/linux/commits/Gao-Xiang/staging-erofs-fix-an-error-handling-in-erofs_readdir/20190818-191344 > > config: arm64-allyesconfig (attached as .config) > > compiler: aarch64-linux-gcc (GCC) 7.4.0 > > reproduce: > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > > chmod +x ~/bin/make.cross > > # save the attached .config to linux build tree > > GCC_VERSION=7.4.0 make.cross ARCH=arm64 > > > > If you fix the issue, kindly add following tag > > Reported-by: kbuild test robot > > > > All errors (new ones prefixed by >>): > > > > drivers/staging/erofs/dir.c: In function 'erofs_readdir': > > >> drivers/staging/erofs/dir.c:110:11: error: 'EFSCORRUPTED' undeclared (first use in this function); did you mean 'FS_NRSUPER'? > > err = -EFSCORRUPTED; > > ^~~~~~~~~~~~ > > FS_NRSUPER > > drivers/staging/erofs/dir.c:110:11: note: each undeclared identifier is reported only once for each function it appears in > > > > vim +110 drivers/staging/erofs/dir.c > > > > 85 > > 86 static int erofs_readdir(struct file *f, struct dir_context *ctx) > > 87 { > > 88 struct inode *dir = file_inode(f); > > 89 struct address_space *mapping = dir->i_mapping; > > 90 const size_t dirsize = i_size_read(dir); > > 91 unsigned int i = ctx->pos / EROFS_BLKSIZ; > > 92 unsigned int ofs = ctx->pos % EROFS_BLKSIZ; > > 93 int err = 0; > > 94 bool initial = true; > > 95 > > 96 while (ctx->pos < dirsize) { > > 97 struct page *dentry_page; > > 98 struct erofs_dirent *de; > > 99 unsigned int nameoff, maxsize; > > 100 > > 101 dentry_page = read_mapping_page(mapping, i, NULL); > > 102 if (dentry_page == ERR_PTR(-ENOMEM)) { > > 103 errln("no memory to readdir of logical block %u of nid %llu", > > 104 i, EROFS_V(dir)->nid); > > 105 err = -ENOMEM; > > 106 break; > > 107 } else if (IS_ERR(dentry_page)) { > > 108 errln("fail to readdir of logical block %u of nid %llu", > > 109 i, EROFS_V(dir)->nid); > > > 110 err = -EFSCORRUPTED; > > 111 break; > > 112 } > > 113 > > 114 de = (struct erofs_dirent *)kmap(dentry_page); > > 115 > > 116 nameoff = le16_to_cpu(de->nameoff); > > 117 > > 118 if (unlikely(nameoff < sizeof(struct erofs_dirent) || > > 119 nameoff >= PAGE_SIZE)) { > > 120 errln("%s, invalid de[0].nameoff %u", > > 121 __func__, nameoff); > > 122 > > 123 err = -EIO; > > 124 goto skip_this; > > 125 } > > 126 > > 127 maxsize = min_t(unsigned int, > > 128 dirsize - ctx->pos + ofs, PAGE_SIZE); > > 129 > > 130 /* search dirents at the arbitrary position */ > > 131 if (unlikely(initial)) { > > 132 initial = false; > > 133 > > 134 ofs = roundup(ofs, sizeof(struct erofs_dirent)); > > 135 if (unlikely(ofs >= nameoff)) > > 136 goto skip_this; > > 137 } > > 138 > > 139 err = erofs_fill_dentries(ctx, de, &ofs, nameoff, maxsize); > > 140 skip_this: > > 141 kunmap(dentry_page); > > 142 > > 143 put_page(dentry_page); > > 144 > > 145 ctx->pos = blknr_to_addr(i) + ofs; > > 146 > > 147 if (unlikely(err)) > > 148 break; > > 149 ++i; > > 150 ofs = 0; > > 151 } > > 152 return err < 0 ? err : 0; > > 153 } > > 154 > > > > --- > > 0-DAY kernel test infrastructure Open Source Technology Center > > https://lists.01.org/pipermail/kbuild-all Intel Corporation > >