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Tue, 23 Nov 2021 23:43:01 +0000 (UTC) X-FDA: 78841822962.13.94381A4 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by imf08.hostedemail.com (Postfix) with ESMTP id 87929300024B for ; Tue, 23 Nov 2021 23:42:56 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10177"; a="215189339" X-IronPort-AV: E=Sophos;i="5.87,258,1631602800"; d="scan'208";a="215189339" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2021 15:42:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,258,1631602800"; d="scan'208";a="591391247" Received: from lkp-server02.sh.intel.com (HELO 9e1e9f9b3bcb) ([10.239.97.151]) by FMSMGA003.fm.intel.com with ESMTP; 23 Nov 2021 15:42:57 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1mpfR9-0002Ss-Qw; Tue, 23 Nov 2021 23:42:55 +0000 Date: Wed, 24 Nov 2021 07:42:34 +0800 From: kernel test robot To: Alexander Aring Cc: kbuild-all@lists.01.org, Linux Memory Management List , David Teigland Subject: [linux-next:master 632/3119] fs/dlm/midcomms.c:913:22: sparse: sparse: restricted __le32 degrades to integer Message-ID: <202111240750.4owflYVZ-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) X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 87929300024B X-Stat-Signature: 3k6t7cbgwoku4ukfmpkdarfu1ugse851 Authentication-Results: imf08.hostedemail.com; dkim=none; spf=none (imf08.hostedemail.com: domain of lkp@intel.com has no SPF policy when checking 192.55.52.136) smtp.mailfrom=lkp@intel.com; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=intel.com (policy=none) X-HE-Tag: 1637710976-574308 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: tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: aacdecce8147c20b01f865b4e214bb8dbe8c4af1 commit: 658bd576f95ed597e519cdadf1c86ac87c17aea5 [632/3119] fs: dlm: move version conversion to compile time config: ia64-randconfig-s031-20211123 (https://download.01.org/0day-ci/archive/20211124/202111240750.4owflYVZ-lkp@intel.com/config.gz) compiler: ia64-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/next/linux-next.git/commit/?id=658bd576f95ed597e519cdadf1c86ac87c17aea5 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 658bd576f95ed597e519cdadf1c86ac87c17aea5 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=ia64 SHELL=/bin/bash fs/dlm/ 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