tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1e2a199f6ccdc15cf111d68d212e2fd4ce65682e commit: 2f713615ddd9d805b6c5e79c52e0e11af99d2bf1 libceph: move msgr1 protocol implementation to its own file compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> cppcheck possible warnings: (new ones prefixed by >>, may not real problems) >> net/ceph/messenger_v1.c:1099:23: warning: Boolean result is used in bitwise >> operation. Clarify expression with parentheses. [clarifyCondition] BUG_ON(!con->in_msg ^ skip); ^ vim +1099 net/ceph/messenger_v1.c 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1033 static int read_partial_message(struct ceph_connection *con) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1034 { 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1035 struct ceph_msg *m = con->in_msg; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1036 int size; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1037 int end; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1038 int ret; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1039 unsigned int front_len, middle_len, data_len; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1040 bool do_datacrc = !ceph_test_opt(from_msgr(con->msgr), NOCRC); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1041 bool need_sign = (con->peer_features & CEPH_FEATURE_MSG_AUTH); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1042 u64 seq; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1043 u32 crc; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1044 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1045 dout("read_partial_message con %p msg %p\n", con, m); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1046 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1047 /* header */ 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1048 size = sizeof (con->in_hdr); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1049 end = size; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1050 ret = read_partial(con, end, size, &con->in_hdr); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1051 if (ret <= 0) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1052 return ret; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1053 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1054 crc = crc32c(0, &con->in_hdr, offsetof(struct ceph_msg_header, crc)); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1055 if (cpu_to_le32(crc) != con->in_hdr.crc) { 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1056 pr_err("read_partial_message bad hdr crc %u != expected %u\n", 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1057 crc, con->in_hdr.crc); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1058 return -EBADMSG; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1059 } 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1060 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1061 front_len = le32_to_cpu(con->in_hdr.front_len); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1062 if (front_len > CEPH_MSG_MAX_FRONT_LEN) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1063 return -EIO; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1064 middle_len = le32_to_cpu(con->in_hdr.middle_len); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1065 if (middle_len > CEPH_MSG_MAX_MIDDLE_LEN) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1066 return -EIO; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1067 data_len = le32_to_cpu(con->in_hdr.data_len); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1068 if (data_len > CEPH_MSG_MAX_DATA_LEN) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1069 return -EIO; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1070 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1071 /* verify seq# */ 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1072 seq = le64_to_cpu(con->in_hdr.seq); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1073 if ((s64)seq - (s64)con->in_seq < 1) { 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1074 pr_info("skipping %s%lld %s seq %lld expected %lld\n", 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1075 ENTITY_NAME(con->peer_name), 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1076 ceph_pr_addr(&con->peer_addr), 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1077 seq, con->in_seq + 1); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1078 con->in_base_pos = -front_len - middle_len - data_len - 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1079 sizeof_footer(con); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1080 con->in_tag = CEPH_MSGR_TAG_READY; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1081 return 1; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1082 } else if ((s64)seq - (s64)con->in_seq > 1) { 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1083 pr_err("read_partial_message bad seq %lld expected %lld\n", 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1084 seq, con->in_seq + 1); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1085 con->error_msg = "bad message sequence # for incoming message"; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1086 return -EBADE; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1087 } 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1088 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1089 /* allocate message? */ 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1090 if (!con->in_msg) { 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1091 int skip = 0; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1092 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1093 dout("got hdr type %d front %d data %d\n", con->in_hdr.type, 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1094 front_len, data_len); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1095 ret = ceph_con_in_msg_alloc(con, &con->in_hdr, &skip); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1096 if (ret < 0) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1097 return ret; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1098 2f713615ddd9d805 Ilya Dryomov 2020-11-12 @1099 BUG_ON(!con->in_msg ^ skip); ! has higher precedence than ^. It's not clear that was intended necessarily. 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1100 if (skip) { 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1101 /* skip this message */ 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1102 dout("alloc_msg said skip message\n"); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1103 con->in_base_pos = -front_len - middle_len - data_len - 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1104 sizeof_footer(con); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1105 con->in_tag = CEPH_MSGR_TAG_READY; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1106 con->in_seq++; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1107 return 1; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1108 } 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1109 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1110 BUG_ON(!con->in_msg); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1111 BUG_ON(con->in_msg->con != con); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1112 m = con->in_msg; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1113 m->front.iov_len = 0; /* haven't read it yet */ 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1114 if (m->middle) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1115 m->middle->vec.iov_len = 0; 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1116 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1117 /* prepare for data payload, if any */ 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1118 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1119 if (data_len) 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1120 prepare_message_data(con->in_msg, data_len); 2f713615ddd9d805 Ilya Dryomov 2020-11-12 1121 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
