10:42 a.m.
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-lk...)
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/commi...
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 <lkp(a)intel.com>
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