[kbuild-all] [hare-scsi-devel:auth.v2 6/12] drivers/nvme/host/auth.c:40:5: warning: no previous prototype for 'nvme_auth_send'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git auth.v2 head: 9107ea4a3526c6801b38b7a2345b7372278a35ba commit: 723befd959651e629874f9ce9f4a322c4dbe008b [6/12] nvme: Implement In-Band authentication config: x86_64-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git/commi... git remote add hare-scsi-devel https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git git fetch --no-tags hare-scsi-devel auth.v2 git checkout 723befd959651e629874f9ce9f4a322c4dbe008b # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 40 | int nvme_auth_send(struct nvme_ctrl *ctrl, int qid, void *data, size_t tl) | ^~~~~~~~~~~~~~ 64 | int nvme_auth_receive(struct nvme_ctrl *ctrl, int qid, void *buf, size_t al, | ^~~~~~~~~~~~~~~~~ 117 | int nvme_auth_dhchap_negotiate(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ 144 | int nvme_auth_dhchap_challenge(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ 214 | int nvme_auth_dhchap_reply(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~ 257 | int nvme_auth_dhchap_success1(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~~~~ 302 | int nvme_auth_dhchap_success2(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~~~~ 317 | int nvme_auth_dhchap_failure2(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~~~~ 334 | int nvme_auth_select_hash(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~ 385 | int nvme_auth_dhchap_host_response(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 432 | int nvme_auth_dhchap_controller_response(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 485 | int nvme_auth_generate_key(struct nvme_ctrl *ctrl, | ^~~~~~~~~~~~~~~~~~~~~~ vim +/nvme_auth_send +40 drivers/nvme/host/auth.c 39 41 { 42 struct nvme_command cmd = {}; 43 blk_mq_req_flags_t flags = qid == NVME_QID_ANY ? 44 0 : BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_RESERVED; 45 struct request_queue *q = qid == NVME_QID_ANY ? 46 ctrl->fabrics_q : ctrl->connect_q; 47 int ret; 48 49 cmd.auth_send.opcode = nvme_fabrics_command; 50 cmd.auth_send.fctype = nvme_fabrics_type_auth_send; 51 cmd.auth_send.secp = NVME_AUTH_DHCHAP_PROTOCOL_IDENTIFIER; 52 cmd.auth_send.spsp0 = 0x01; 53 cmd.auth_send.spsp1 = 0x01; 54 cmd.auth_send.tl = tl; 55 56 ret = __nvme_submit_sync_cmd(q, &cmd, NULL, data, tl, 0, qid, 57 0, flags); 58 if (ret) 59 dev_dbg(ctrl->device, 60 "%s: qid %d error %d\n", __func__, qid, ret); 61 return ret; 62 } 63 65 u16 transaction, u8 expected_msg ) 66 { 67 struct nvme_command cmd = {}; 68 struct nvmf_auth_dhchap_failure_data *data = buf; 69 blk_mq_req_flags_t flags = qid == NVME_QID_ANY ? 70 0 : BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_RESERVED; 71 struct request_queue *q = qid == NVME_QID_ANY ? 72 ctrl->fabrics_q : ctrl->connect_q; 73 int ret; 74 75 cmd.auth_receive.opcode = nvme_fabrics_command; 76 cmd.auth_receive.fctype = nvme_fabrics_type_auth_receive; 77 cmd.auth_receive.secp = NVME_AUTH_DHCHAP_PROTOCOL_IDENTIFIER; 78 cmd.auth_receive.spsp0 = 0x01; 79 cmd.auth_receive.spsp1 = 0x01; 80 cmd.auth_receive.al = al; 81 82 ret = __nvme_submit_sync_cmd(q, &cmd, NULL, buf, al, 0, qid, 83 0, flags); 84 if (ret > 0) { 85 dev_dbg(ctrl->device, "%s: qid %d nvme status %x\n", 86 __func__, qid, ret); 87 ret = -EIO; 88 } 89 if (ret < 0) { 90 dev_dbg(ctrl->device, "%s: qid %d error %d\n", 91 __func__, qid, ret); 92 return ret; 93 } 94 dev_dbg(ctrl->device, "%s: qid %d auth_type %d auth_id %x\n", 95 __func__, qid, data->auth_type, data->auth_id); 96 if (data->auth_type == NVME_AUTH_COMMON_MESSAGES && 97 data->auth_id == NVME_AUTH_DHCHAP_MESSAGE_FAILURE1) { 98 return data->reason_code_explanation; 99 } 100 if (data->auth_type != NVME_AUTH_DHCHAP_MESSAGES || 101 data->auth_id != expected_msg) { 102 dev_warn(ctrl->device, 103 "%s: qid %d invalid message type %02x/%02x\n", 104 __func__, qid, data->auth_type, data->auth_id); 105 return NVME_AUTH_DHCHAP_FAILURE_INVALID_PAYLOAD; 106 } 107 if (le16_to_cpu(data->t_id) != transaction) { 108 dev_warn(ctrl->device, 109 "%s: qid %d invalid transaction ID %d\n", 110 __func__, qid, le16_to_cpu(data->t_id)); 111 return NVME_AUTH_DHCHAP_FAILURE_INVALID_PAYLOAD; 112 } 113 114 return 0; 115 } 116 118 struct nvme_dhchap_context *chap, 119 void *buf, size_t buf_size) 120 { 121 struct nvmf_auth_dhchap_negotiate_data *data = buf; 122 size_t size = sizeof(*data) + sizeof(union nvmf_auth_protocol); 123 124 if (buf_size < size) 125 return -EINVAL; 126 127 memset((u8 *)buf, 0, size); 128 data->auth_type = NVME_AUTH_COMMON_MESSAGES; 129 data->auth_id = NVME_AUTH_DHCHAP_MESSAGE_NEGOTIATE; 130 data->t_id = cpu_to_le16(chap->transaction); 131 data->sc_c = 0; /* No secure channel concatenation */ 132 data->napd = 1; 133 data->auth_protocol[0].dhchap.authid = NVME_AUTH_DHCHAP_AUTH_ID; 134 data->auth_protocol[0].dhchap.halen = 3; 135 data->auth_protocol[0].dhchap.dhlen = 1; 136 data->auth_protocol[0].dhchap.idlist[0] = NVME_AUTH_DHCHAP_HASH_SHA256; 137 data->auth_protocol[0].dhchap.idlist[1] = NVME_AUTH_DHCHAP_HASH_SHA384; 138 data->auth_protocol[0].dhchap.idlist[2] = NVME_AUTH_DHCHAP_HASH_SHA512; 139 data->auth_protocol[0].dhchap.idlist[3] = NVME_AUTH_DHCHAP_DHGROUP_NULL; 140 141 return size; 142 } 143 145 struct nvme_dhchap_context *chap, 146 void *buf, size_t buf_size) 147 { 148 struct nvmf_auth_dhchap_challenge_data *data = buf; 149 size_t size = sizeof(*data) + data->hl + data->dhvlen; 150 const char *gid_name; 151 152 if (buf_size < size) { 153 chap->status = NVME_AUTH_DHCHAP_FAILURE_INVALID_PAYLOAD; 154 return -ENOMSG; 155 } 156 157 if (data->hashid != NVME_AUTH_DHCHAP_HASH_SHA256 && 158 data->hashid != NVME_AUTH_DHCHAP_HASH_SHA384 && 159 data->hashid != NVME_AUTH_DHCHAP_HASH_SHA512) { 160 dev_warn(ctrl->device, 161 "qid %d: DH-HMAC-CHAP: invalid HASH ID %d\n", 162 chap->qid, data->hashid); 163 chap->status = NVME_AUTH_DHCHAP_FAILURE_HASH_UNUSABLE; 164 return -EPROTO; 165 } 166 switch (data->dhgid) { 167 case NVME_AUTH_DHCHAP_DHGROUP_NULL: 168 gid_name = "null"; 169 break; 170 default: 171 gid_name = NULL; 172 break; 173 } 174 if (!gid_name) { 175 dev_warn(ctrl->device, 176 "qid %d: DH-HMAC-CHAP: invalid DH group id %d\n", 177 chap->qid, data->dhgid); 178 chap->status = NVME_AUTH_DHCHAP_FAILURE_DHGROUP_UNUSABLE; 179 return -EPROTO; 180 } 181 if (data->dhgid != NVME_AUTH_DHCHAP_DHGROUP_NULL) { 182 chap->status = NVME_AUTH_DHCHAP_FAILURE_DHGROUP_UNUSABLE; 183 return -EPROTO; 184 } 185 if (data->dhgid == NVME_AUTH_DHCHAP_DHGROUP_NULL && data->dhvlen != 0) { 186 dev_warn(ctrl->device, 187 "qid %d: DH-HMAC-CHAP: invalid DH value for NULL DH\n", 188 chap->qid); 189 chap->status = NVME_AUTH_DHCHAP_FAILURE_DHGROUP_UNUSABLE; 190 return -EPROTO; 191 } 192 dev_dbg(ctrl->device, "%s: qid %d requested hash id %d\n", 193 __func__, chap->qid, data->hashid); 194 chap->hash_id = data->hashid; 195 if ((data->hashid == NVME_AUTH_DHCHAP_HASH_SHA256 && 196 data->hl != 32) || 197 (data->hashid == NVME_AUTH_DHCHAP_HASH_SHA384 && 198 data->hl != 48) || 199 (data->hashid == NVME_AUTH_DHCHAP_HASH_SHA512 && 200 data->hl != 64)) { 201 dev_warn(ctrl->device, 202 "qid %d: DH-HMAC-CHAP: invalid hash length\n", 203 chap->qid); 204 chap->status = NVME_AUTH_DHCHAP_FAILURE_HASH_UNUSABLE; 205 return -EPROTO; 206 } 207 chap->hash_len = data->hl; 208 chap->s1 = le32_to_cpu(data->seqnum); 209 memcpy(chap->c1, data->cval, chap->hash_len); 210 211 return 0; 212 } 213 215 struct nvme_dhchap_context *chap, 216 void *buf, size_t buf_size) 217 { 218 struct nvmf_auth_dhchap_reply_data *data = buf; 219 size_t size = sizeof(*data); 220 221 size += 2 * chap->hash_len; 222 if (ctrl->opts->dhchap_auth) { 223 get_random_bytes(chap->c2, chap->hash_len); 224 chap->s2 = nvme_dhchap_seqnum++; 225 } else 226 memset(chap->c2, 0, chap->hash_len); 227 228 if (chap->host_key_len) 229 size += chap->host_key_len; 230 231 if (buf_size < size) 232 return -EINVAL; 233 234 memset(buf, 0, size); 235 data->auth_type = NVME_AUTH_DHCHAP_MESSAGES; 236 data->auth_id = NVME_AUTH_DHCHAP_MESSAGE_REPLY; 237 data->t_id = cpu_to_le16(chap->transaction); 238 data->hl = chap->hash_len; 239 data->dhvlen = chap->host_key_len; 240 data->seqnum = cpu_to_le32(chap->s2); 241 memcpy(data->rval, chap->response, chap->hash_len); 242 if (ctrl->opts->dhchap_auth) { 243 dev_dbg(ctrl->device, "%s: qid %d ctrl challenge %*ph\n", 244 __func__, chap->qid, 245 chap->hash_len, chap->c2); 246 data->cvalid = 1; 247 memcpy(data->rval + chap->hash_len, chap->c2, 248 chap->hash_len); 249 } 250 if (chap->host_key_len) 251 memcpy(data->rval + 2 * chap->hash_len, chap->host_key, 252 chap->host_key_len); 253 254 return size; 255 } 256 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org