From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: X-Spam-Status: No, score=0.5 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, NICE_REPLY_A,RDNS_NONE,T_SPF_HELO_TEMPERROR,T_SPF_TEMPERROR autolearn=no autolearn_force=no version=3.4.6 Received: from mga01.intel.com (unknown [192.55.52.88]) by gnuweeb.org (Postfix) with ESMTPS id 809727E25E for ; Mon, 7 Feb 2022 06:13:23 +0000 (UTC) Authentication-Results: gnuweeb.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=Or04bCjX; dkim-atps=neutral DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1644214403; x=1675750403; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to; bh=VDxX+ki1YLKnRSeA3OSQSMDhTci/MojEylh6DdiPgY4=; b=Or04bCjXV3T0jFvPo3NIf0w7reUmKBtJMtj2R2unZ02tSKkPR4aaTd0j Y6V0tCjSpBKcT2FbS3N/aeObvoPxdRqyFa1UDDduPC1xhiPrkBA9iysMG EfulN74YDm17rj8uc1VWBK7wBuTTWVNIDAU0Gfdwa3LYAkm1db/m5OSVl 5gvRUtMt//TpSGd9lmX7dYWDeBqY/mIomYrhqONejOYBV9dd8N1oePLUL j0L4rxIrJLTG3NKcigKoAtYQ2wW6lC+Ecaf4f5czayXDAsSD5IZigFHL4 w+gqt/syZ8DIzs6pkmGwvIQwdRxMENgBnZ5tW/DUNWkCfmot5z6D5mMt0 w==; X-IronPort-AV: E=McAfee;i="6200,9189,10250"; a="273167826" X-IronPort-AV: E=Sophos;i="5.88,349,1635231600"; d="eml'208?scan'208,208";a="273167826" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Feb 2022 22:13:22 -0800 X-IronPort-AV: E=Sophos;i="5.88,349,1635231600"; d="eml'208?scan'208,208";a="539959975" Received: from rongch2-mobl.ccr.corp.intel.com (HELO [10.249.174.205]) ([10.249.174.205]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Feb 2022 22:13:20 -0800 Subject: Re: [ammarfaizi2-block:testing/io_uring-sendto-recvfrom.v1] BUILD SUCCESS 68d110c39241b887ec388cd3316dbedb85b0cbcf To: Ammar Faizi , kernel test robot Cc: GNU/Weeb Mailing List , Tea Inside Mailing List References: <61f5a2fa./zZ+BkSwdkmvxv7x%lkp@intel.com> From: "Chen, Rong A" Message-ID: Date: Mon, 7 Feb 2022 14:13:17 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/mixed; boundary="------------EEDDD13D0CD5A220FBA6D616" Content-Language: en-US List-Id: This is a multi-part message in MIME format. --------------EEDDD13D0CD5A220FBA6D616 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hi, On 1/30/2022 5:11 PM, Ammar Faizi wrote: > Hello, > > On 1/30/22 3:26 AM, kernel test robot wrote: >> tree/branch: https://github.com/ammarfaizi2/linux-block >> testing/io_uring-sendto-recvfrom.v1 >> branch HEAD: 68d110c39241b887ec388cd3316dbedb85b0cbcf  io_uring: Add >> `sendto(2)` and `recvfrom(2)` support >> >> possible Warning in current branch (please contact us if interested): >> >> fs/io_uring.c:5238 io_recvfrom() error: uninitialized symbol 'flags'. >> >> Warning ids grouped by kconfigs: >> >> gcc_recent_errors >> `-- x86_64-randconfig-m001 >>      `-- fs-io_uring.c-io_recvfrom()-error:uninitialized-symbol-flags-. > > > Interesting... > Can I have the reproducer for this warning? Sorry for the delay, I attached the report for your reference. Best Regards, Rong Chen > >> elapsed time: 722m >> >> configs tested: 137 >> configs skipped: 3 >> >> The following configs have been built successfully. >> More configs may be tested in the coming days. >> >> gcc tested configs: >> arm                                 defconfig >> arm64                            allyesconfig >> arm64                               defconfig >> arm                              allyesconfig >> arm                              allmodconfig >> i386                 randconfig-c001-20220124 >> sh                             sh03_defconfig >> arm                         axm55xx_defconfig >> powerpc                      pcm030_defconfig >> xtensa                           alldefconfig >> powerpc                      ep88xc_defconfig >> powerpc                     ep8248e_defconfig >> m68k                        stmark2_defconfig >> powerpc                 mpc834x_itx_defconfig >> arm                        shmobile_defconfig >> mips                     decstation_defconfig >> arm                         lubbock_defconfig >> arm                          iop32x_defconfig >> arc                           tb10x_defconfig >> s390                                defconfig >> sh                           se7751_defconfig >> openrisc                         alldefconfig >> arc                 nsimosci_hs_smp_defconfig >> powerpc                     sequoia_defconfig >> m68k                           sun3_defconfig >> powerpc                 mpc834x_mds_defconfig >> sh                           se7705_defconfig >> xtensa                    smp_lx200_defconfig >> arm                        mini2440_defconfig >> sh                           se7343_defconfig >> sh                          polaris_defconfig >> sh                           se7712_defconfig >> xtensa                  audio_kc705_defconfig >> mips                        vocore2_defconfig >> arm                           h5000_defconfig >> arc                        nsimosci_defconfig >> sh                           se7722_defconfig >> powerpc                     asp8347_defconfig >> mips                           ip32_defconfig >> arm                  randconfig-c002-20220127 >> arm                  randconfig-c002-20220124 >> arm                  randconfig-c002-20220129 >> ia64                             allmodconfig >> ia64                                defconfig >> ia64                             allyesconfig >> m68k                             allmodconfig >> m68k                                defconfig >> m68k                             allyesconfig >> nios2                               defconfig >> arc                              allyesconfig >> nds32                             allnoconfig >> nds32                               defconfig >> csky                                defconfig >> alpha                               defconfig >> alpha                            allyesconfig >> nios2                            allyesconfig >> arc                                 defconfig >> sh                               allmodconfig >> h8300                            allyesconfig >> xtensa                           allyesconfig >> parisc                              defconfig >> s390                             allyesconfig >> s390                             allmodconfig >> parisc                           allyesconfig >> i386                             allyesconfig >> sparc                            allyesconfig >> sparc                               defconfig >> i386                                defconfig >> i386                   debian-10.3-kselftests >> i386                              debian-10.3 >> mips                             allyesconfig >> mips                             allmodconfig >> powerpc                          allyesconfig >> powerpc                          allmodconfig >> powerpc                           allnoconfig >> x86_64               randconfig-a002-20220124 >> x86_64               randconfig-a003-20220124 >> x86_64               randconfig-a001-20220124 >> x86_64               randconfig-a004-20220124 >> x86_64               randconfig-a005-20220124 >> x86_64               randconfig-a006-20220124 >> i386                 randconfig-a002-20220124 >> i386                 randconfig-a005-20220124 >> i386                 randconfig-a003-20220124 >> i386                 randconfig-a004-20220124 >> i386                 randconfig-a001-20220124 >> i386                 randconfig-a006-20220124 >> x86_64                        randconfig-a011 >> x86_64                        randconfig-a013 >> x86_64                        randconfig-a015 >> riscv                    nommu_k210_defconfig >> riscv                            allyesconfig >> riscv                    nommu_virt_defconfig >> riscv                             allnoconfig >> riscv                               defconfig >> riscv                          rv32_defconfig >> riscv                            allmodconfig >> x86_64                    rhel-8.3-kselftests >> um                           x86_64_defconfig >> um                             i386_defconfig >> x86_64                              defconfig >> x86_64                               rhel-8.3 >> x86_64                                  kexec >> x86_64                           allyesconfig >> x86_64                          rhel-8.3-func >> >> clang tested configs: >> arm                  randconfig-c002-20220124 >> riscv                randconfig-c006-20220124 >> i386                 randconfig-c001-20220124 >> powerpc              randconfig-c003-20220124 >> mips                 randconfig-c004-20220124 >> x86_64               randconfig-c007-20220124 >> x86_64                        randconfig-c007 >> riscv                randconfig-c006-20220129 >> arm                  randconfig-c002-20220129 >> s390                 randconfig-c005-20220129 >> powerpc              randconfig-c003-20220129 >> mips                 randconfig-c004-20220129 >> i386                          randconfig-c001 >> arm                        mvebu_v5_defconfig >> x86_64                        randconfig-a012 >> x86_64                        randconfig-a014 >> x86_64                        randconfig-a016 >> x86_64               randconfig-a011-20220124 >> x86_64               randconfig-a013-20220124 >> x86_64               randconfig-a015-20220124 >> x86_64               randconfig-a016-20220124 >> x86_64               randconfig-a014-20220124 >> x86_64               randconfig-a012-20220124 >> i386                 randconfig-a011-20220124 >> i386                 randconfig-a016-20220124 >> i386                 randconfig-a013-20220124 >> i386                 randconfig-a014-20220124 >> i386                 randconfig-a015-20220124 >> i386                 randconfig-a012-20220124 >> riscv                randconfig-r042-20220124 >> s390                 randconfig-r044-20220124 >> hexagon              randconfig-r045-20220124 >> hexagon              randconfig-r045-20220127 >> hexagon              randconfig-r041-20220124 >> hexagon              randconfig-r041-20220127 >> >> --- >> 0-DAY CI Kernel Test Service, Intel Corporation >> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org > > --------------EEDDD13D0CD5A220FBA6D616 Content-Type: message/rfc822; name="[kbuild] [ammarfaizi2-block testing_io_uring-sendto-recvfrom.v1 3_5] fs_io_uring.c 5238 io_recvfrom() error uninitialized symbol 'flags'..eml" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename*0="[kbuild] [ammarfaizi2-block testing_io_uring-sendto-recvfrom"; filename*1=".v1 3_5] fs_io_uring.c 5238 io_recvfrom() error uninitializ"; filename*2="ed symbol 'flags'..eml" Received: from CY4PR11MB1352.namprd11.prod.outlook.com (2603:10b6:903:2a::23) by BN9PR11MB5354.namprd11.prod.outlook.com with HTTPS; Sat, 29 Jan 2022 11:47:18 +0000 Received: from BN9PR03CA0884.namprd03.prod.outlook.com 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Old smatch warnings: fs/io_uring.c:8422 io_sqe_files_register() error: we previously assumed 'ctx->file_data' could be null (see line 8394) vim +/flags +5238 fs/io_uring.c 0fa03c624d8fc9 Jens Axboe 2019-04-19 5189 8d597f720657a5 Ammar Faizi 2022-01-07 5190 static int io_recvfrom(struct io_kiocb *req, unsigned int issue_flags) fddafacee287b3 Jens Axboe 2020-01-04 5191 { 6b754c8b912a16 Pavel Begunkov 2020-07-16 5192 struct io_buffer *kbuf; fddafacee287b3 Jens Axboe 2020-01-04 5193 struct io_sr_msg *sr = &req->sr_msg; fddafacee287b3 Jens Axboe 2020-01-04 5194 struct msghdr msg; 7a7cacba8b4560 Pavel Begunkov 2020-07-16 5195 void __user *buf = sr->buf; 7a7cacba8b4560 Pavel Begunkov 2020-07-16 5196 struct socket *sock; fddafacee287b3 Jens Axboe 2020-01-04 5197 struct iovec iov; fddafacee287b3 Jens Axboe 2020-01-04 5198 unsigned flags; d1fd1c201d7507 Pavel Begunkov 2021-12-05 5199 int ret, min_ret = 0; 45d189c6062922 Pavel Begunkov 2021-02-10 5200 bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK; 7a7cacba8b4560 Pavel Begunkov 2020-07-16 5201 dba4a9256bb4d7 Florent Revest 2020-12-04 5202 sock = sock_from_file(req->file); 7a7cacba8b4560 Pavel Begunkov 2020-07-16 5203 if (unlikely(!sock)) dba4a9256bb4d7 Florent Revest 2020-12-04 5204 return -ENOTSOCK; fddafacee287b3 Jens Axboe 2020-01-04 5205 bc02ef3325e3ef Pavel Begunkov 2020-07-16 5206 if (req->flags & REQ_F_BUFFER_SELECT) { 51aac424aef980 Pavel Begunkov 2021-10-14 5207 kbuf = io_recv_buffer_select(req, issue_flags); bcda7baaa3f15c Jens Axboe 2020-02-23 5208 if (IS_ERR(kbuf)) bcda7baaa3f15c Jens Axboe 2020-02-23 5209 return PTR_ERR(kbuf); bcda7baaa3f15c Jens Axboe 2020-02-23 5210 buf = u64_to_user_ptr(kbuf->addr); bcda7baaa3f15c Jens Axboe 2020-02-23 5211 } fddafacee287b3 Jens Axboe 2020-01-04 5212 7a7cacba8b4560 Pavel Begunkov 2020-07-16 5213 ret = import_single_range(READ, buf, sr->len, &iov, &msg.msg_iter); 14c32eee928662 Pavel Begunkov 2020-07-16 5214 if (unlikely(ret)) 14c32eee928662 Pavel Begunkov 2020-07-16 5215 goto out_free; fddafacee287b3 Jens Axboe 2020-01-04 5216 fddafacee287b3 Jens Axboe 2020-01-04 5217 msg.msg_name = NULL; fddafacee287b3 Jens Axboe 2020-01-04 5218 msg.msg_control = NULL; fddafacee287b3 Jens Axboe 2020-01-04 5219 msg.msg_controllen = 0; fddafacee287b3 Jens Axboe 2020-01-04 5220 msg.msg_namelen = 0; fddafacee287b3 Jens Axboe 2020-01-04 5221 msg.msg_iocb = NULL; fddafacee287b3 Jens Axboe 2020-01-04 5222 msg.msg_flags = 0; fddafacee287b3 Jens Axboe 2020-01-04 5223 044118069a23fd Pavel Begunkov 2021-04-01 5224 flags = req->sr_msg.msg_flags; 044118069a23fd Pavel Begunkov 2021-04-01 5225 if (force_nonblock) fddafacee287b3 Jens Axboe 2020-01-04 5226 flags |= MSG_DONTWAIT; 0031275d119efe Stefan Metzmacher 2021-03-20 5227 if (flags & MSG_WAITALL) 0031275d119efe Stefan Metzmacher 2021-03-20 5228 min_ret = iov_iter_count(&msg.msg_iter); 0031275d119efe Stefan Metzmacher 2021-03-20 5229 0b7b21e42ba2d6 Jens Axboe 2020-01-31 5230 ret = sock_recvmsg(sock, &msg, flags); 7297ce3d59449d Pavel Begunkov 2021-11-23 5231 out_free: 7297ce3d59449d Pavel Begunkov 2021-11-23 5232 if (ret < min_ret) { 7297ce3d59449d Pavel Begunkov 2021-11-23 5233 if (ret == -EAGAIN && force_nonblock) fddafacee287b3 Jens Axboe 2020-01-04 5234 return -EAGAIN; fddafacee287b3 Jens Axboe 2020-01-04 5235 if (ret == -ERESTARTSYS) fddafacee287b3 Jens Axboe 2020-01-04 5236 ret = -EINTR; 93d2bcd2cbfed2 Pavel Begunkov 2021-05-16 5237 req_set_fail(req); 7297ce3d59449d Pavel Begunkov 2021-11-23 @5238 } else if ((flags & MSG_WAITALL) && (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC))) { 7297ce3d59449d Pavel Begunkov 2021-11-23 5239 req_set_fail(req); 7297ce3d59449d Pavel Begunkov 2021-11-23 5240 } d1fd1c201d7507 Pavel Begunkov 2021-12-05 5241 d1fd1c201d7507 Pavel Begunkov 2021-12-05 5242 __io_req_complete(req, issue_flags, ret, io_put_kbuf(req)); fddafacee287b3 Jens Axboe 2020-01-04 5243 return 0; fddafacee287b3 Jens Axboe 2020-01-04 5244 } fddafacee287b3 Jens Axboe 2020-01-04 5245 :::::: The code at line 5238 was first introduced by commit :::::: 7297ce3d59449de49d3c9e1f64ae25488750a1fc io_uring: improve send/recv error handling :::::: TO: Pavel Begunkov :::::: CC: Jens Axboe --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-leave@lists.01.org --------------EEDDD13D0CD5A220FBA6D616--