tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: ea586a076e8aa606c59b66d86660590f18354b11 commit: 658bd576f95ed597e519cdadf1c86ac87c17aea5 [511/9897] fs: dlm: move version conversion to compile time config: ia64-randconfig-s031-20211123 (https://download.01.org/0day-ci/archive/20211231/202112310735.HxchgVSl-lkp@xxxxxxxxx/config) 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 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=ia64 SHELL=/bin/bash fs/dlm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> 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@xxxxxxxxxxxx
