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 D7D3BC43217 for ; Mon, 24 Jan 2022 23:37:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2360009AbiAXXfk (ORCPT ); Mon, 24 Jan 2022 18:35:40 -0500 Received: from mga09.intel.com ([134.134.136.24]:3335 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1838591AbiAXWqx (ORCPT ); Mon, 24 Jan 2022 17:46:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643064413; x=1674600413; h=date:from:to:cc:subject:message-id:mime-version; bh=sym5jT8q5cwujBGyj2U5vtxo55C4dQq5swJKkshUwVE=; b=cK4ERk5bh8DEopCyNBWTpF8OUIFFgl6Md7V3V520cdfP1a07zsWdRjbL OQ/TugxsVZY/i/m3ji/QjhATFs+cI1FHGvrnF5yIjf0+WrLIaZ7hRoXa2 Hz1DJDOtg4E884bReZO0tuvjCiO64l4CeOVbdG5oZKqmwx8jHJM/W7dDB KqYQGQczmcAglN9hJuiwNqkEizn8sloS60uin5LQ8nv6fbIwqUar7Ys1Q RZhx5sQ8Cvkwx+MOJldUXjAa7E8JDyexkc1EkQeQCpoCwERnA+ZvcfVtu AU2a5K9kimJm/5yed/PiXQ20dNk/6TRMyT9f4Dwfpk/h3z8od1rMRxmpb g==; X-IronPort-AV: E=McAfee;i="6200,9189,10237"; a="245947129" X-IronPort-AV: E=Sophos;i="5.88,313,1635231600"; d="scan'208";a="245947129" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2022 14:46:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,313,1635231600"; d="scan'208";a="617408129" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by FMSMGA003.fm.intel.com with ESMTP; 24 Jan 2022 14:46:12 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1nC86F-000J2b-Dx; Mon, 24 Jan 2022 22:46:11 +0000 Date: Tue, 25 Jan 2022 06:45:49 +0800 From: kernel test robot To: Alexander Aring Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, David Teigland Subject: fs/dlm/midcomms.c:913:22: sparse: sparse: restricted __le32 degrades to integer Message-ID: <202201250653.Cd12vqu0-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0 commit: 658bd576f95ed597e519cdadf1c86ac87c17aea5 fs: dlm: move version conversion to compile time date: 3 months ago config: csky-randconfig-s032-20220120 (https://download.01.org/0day-ci/archive/20220125/202201250653.Cd12vqu0-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=658bd576f95ed597e519cdadf1c86ac87c17aea5 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 658bd576f95ed597e519cdadf1c86ac87c17aea5 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=csky SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) fs/dlm/midcomms.c:570:25: sparse: sparse: cast to restricted __le32 fs/dlm/midcomms.c:678:19: sparse: sparse: cast to restricted __le16 fs/dlm/midcomms.c:680:16: sparse: sparse: cast to restricted __le16 fs/dlm/midcomms.c:718:27: sparse: sparse: cast to restricted __le16 fs/dlm/midcomms.c:737:25: sparse: sparse: cast to restricted __le32 fs/dlm/midcomms.c:747:25: sparse: sparse: cast to restricted __le32 fs/dlm/midcomms.c:756:23: sparse: sparse: cast to restricted __le32 fs/dlm/midcomms.c:766:42: sparse: sparse: cast to restricted __le16 fs/dlm/midcomms.c:769:26: sparse: sparse: cast to restricted __le16 fs/dlm/midcomms.c:804:23: sparse: sparse: cast to restricted __le32 fs/dlm/midcomms.c:838:27: sparse: sparse: cast to restricted __le16 fs/dlm/midcomms.c:898:26: sparse: sparse: cast to restricted __le16 fs/dlm/midcomms.c:920:25: sparse: sparse: cast to restricted __le32 >> fs/dlm/midcomms.c:913:22: sparse: sparse: restricted __le32 degrades to integer fs/dlm/midcomms.c:916:22: sparse: sparse: restricted __le32 degrades to integer fs/dlm/midcomms.c:1056:20: sparse: sparse: context imbalance in 'dlm_midcomms_get_mhandle' - wrong count at exit fs/dlm/midcomms.c: note: in included file (through include/linux/notifier.h, include/linux/memory_hotplug.h, include/linux/mmzone.h, ...): include/linux/srcu.h:188:9: sparse: sparse: context imbalance in 'dlm_midcomms_commit_mhandle' - unexpected unlock vim +913 fs/dlm/midcomms.c 871 872 /* 873 * Called from the low-level comms layer to process a buffer of 874 * commands. 875 */ 876 877 int dlm_process_incoming_buffer(int nodeid, unsigned char *buf, int len) 878 { 879 const unsigned char *ptr = buf; 880 const struct dlm_header *hd; 881 uint16_t msglen; 882 int ret = 0; 883 884 while (len >= sizeof(struct dlm_header)) { 885 hd = (struct dlm_header *)ptr; 886 887 /* no message should be more than DLM_MAX_SOCKET_BUFSIZE or 888 * less than dlm_header size. 889 * 890 * Some messages does not have a 8 byte length boundary yet 891 * which can occur in a unaligned memory access of some dlm 892 * messages. However this problem need to be fixed at the 893 * sending side, for now it seems nobody run into architecture 894 * related issues yet but it slows down some processing. 895 * Fixing this issue should be scheduled in future by doing 896 * the next major version bump. 897 */ 898 msglen = le16_to_cpu(hd->h_length); 899 if (msglen > DLM_MAX_SOCKET_BUFSIZE || 900 msglen < sizeof(struct dlm_header)) { 901 log_print("received invalid length header: %u from node %d, will abort message parsing", 902 msglen, nodeid); 903 return -EBADMSG; 904 } 905 906 /* caller will take care that leftover 907 * will be parsed next call with more data 908 */ 909 if (msglen > len) 910 break; 911 912 switch (hd->h_version) { > 913 case cpu_to_le32(DLM_VERSION_3_1): 914 dlm_midcomms_receive_buffer_3_1((union dlm_packet *)ptr, nodeid); 915 break; 916 case cpu_to_le32(DLM_VERSION_3_2): 917 dlm_midcomms_receive_buffer_3_2((union dlm_packet *)ptr, nodeid); 918 break; 919 default: 920 log_print("received invalid version header: %u from node %d, will skip this message", 921 le32_to_cpu(hd->h_version), nodeid); 922 break; 923 } 924 925 ret += msglen; 926 len -= msglen; 927 ptr += msglen; 928 } 929 930 return ret; 931 } 932 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org