tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 6a5b2f9a14178b13fe5efc52ba6575f5294c1270 commit: 280895301d3bc3507606cbd2e3cdccba75a8dcdc [3075/3075] ub:ubus: Support Ubus read/write configuration functions config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20251102/202511020347.upGDrs6j-lkp@i...) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251102/202511020347.upGDrs6j-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202511020347.upGDrs6j-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

drivers/ub/ubus/ubus_config.c:191:6: warning: no previous prototype for function 'ub_sync_cfg_rsp_handle' [-Wmissing-prototypes] 191 | void ub_sync_cfg_rsp_handle(struct cfg_msg_pld_rsp *rsp, u8 size, | ^ drivers/ub/ubus/ubus_config.c:191:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 191 | void ub_sync_cfg_rsp_handle(struct cfg_msg_pld_rsp *rsp, u8 size, | ^ | static drivers/ub/ubus/ubus_config.c:310:5: warning: no previous prototype for function '__ub_cfg_read_byte' [-Wmissing-prototypes] 310 | int __ub_cfg_read_byte(struct ub_entity *uent, u64 pos, u8 *val) | ^ drivers/ub/ubus/ubus_config.c:310:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 310 | int __ub_cfg_read_byte(struct ub_entity *uent, u64 pos, u8 *val) | ^ | static drivers/ub/ubus/ubus_config.c:320:5: warning: no previous prototype for function '__ub_cfg_read_word' [-Wmissing-prototypes] 320 | int __ub_cfg_read_word(struct ub_entity *uent, u64 pos, u16 *val) | ^ drivers/ub/ubus/ubus_config.c:320:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 320 | int __ub_cfg_read_word(struct ub_entity *uent, u64 pos, u16 *val) | ^ | static drivers/ub/ubus/ubus_config.c:330:5: warning: no previous prototype for function '__ub_cfg_read_dword' [-Wmissing-prototypes] 330 | int __ub_cfg_read_dword(struct ub_entity *uent, u64 pos, u32 *val) | ^ drivers/ub/ubus/ubus_config.c:330:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 330 | int __ub_cfg_read_dword(struct ub_entity *uent, u64 pos, u32 *val) | ^ | static drivers/ub/ubus/ubus_config.c:340:5: warning: no previous prototype for function '__ub_cfg_write_byte' [-Wmissing-prototypes] 340 | int __ub_cfg_write_byte(struct ub_entity *uent, u64 pos, u8 val) | ^ drivers/ub/ubus/ubus_config.c:340:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 340 | int __ub_cfg_write_byte(struct ub_entity *uent, u64 pos, u8 val) | ^ | static drivers/ub/ubus/ubus_config.c:350:5: warning: no previous prototype for function '__ub_cfg_write_word' [-Wmissing-prototypes] 350 | int __ub_cfg_write_word(struct ub_entity *uent, u64 pos, u16 val) | ^ drivers/ub/ubus/ubus_config.c:350:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 350 | int __ub_cfg_write_word(struct ub_entity *uent, u64 pos, u16 val) | ^ | static drivers/ub/ubus/ubus_config.c:360:5: warning: no previous prototype for function '__ub_cfg_write_dword' [-Wmissing-prototypes] 360 | int __ub_cfg_write_dword(struct ub_entity *uent, u64 pos, u32 val) | ^ drivers/ub/ubus/ubus_config.c:360:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 360 | int __ub_cfg_write_dword(struct ub_entity *uent, u64 pos, u32 val) | ^ | static 7 warnings generated.

vim +/ub_sync_cfg_rsp_handle +191 drivers/ub/ubus/ubus_config.c 190

191 void ub_sync_cfg_rsp_handle(struct cfg_msg_pld_rsp *rsp, u8 size, 192 u64 pos, bool write, u32 *val) 193 { 194 #define UB_CFG_REG_SIZE 4 195 u8 pos_in_reg = pos % UB_CFG_REG_SIZE; 196 u32 read_data; 197 198 if (!write) { 199 read_data = rsp->read_data >> (pos_in_reg * BITS_PER_BYTE); 200 if (size == sizeof(u8)) 201 *(u8 *)val = read_data; 202 else if (size == sizeof(u16)) 203 *(u16 *)val = read_data; 204 else 205 *val = read_data; 206 } 207 } 208 209 static u8 gen_cfg_sub_msg_code(bool is_write, u64 pos) 210 { 211 if (pos >= UB_CFG1_BASIC_SLICE && pos < UB_PORT_SLICE_START) 212 return is_write ? UB_CFG1_WRITE : UB_CFG1_READ; 213 else 214 return is_write ? UB_CFG0_WRITE : UB_CFG0_READ; 215 } 216 217 static void ub_msg_pkt_req_init(struct ub_entity *uent, u8 size, u64 pos, u32 *val, 218 struct cfg_msg_pld_req *req) 219 { 220 u8 bt_mask = ub_cfg_param[size >> 1].byte_mask; 221 222 if (val) { 223 if (size == sizeof(u8)) 224 req->write_data = *(u8 *)val; 225 else if (size == sizeof(u16)) 226 req->write_data = *(u16 *)val; 227 else 228 req->write_data = *val; 229 req->write_data <<= ((pos % sizeof(u32)) * BITS_PER_BYTE); 230 } 231 232 req->byte_enable = bt_mask << (u8)(pos % sizeof(u32)); 233 req->entity_idx = uent->entity_idx; 234 /* The address is in four bytes. */ 235 req->req_addr = pos / sizeof(u32); 236 } 237 238 static int ub_sync_cfg(struct ub_entity *uent, u8 size, u64 pos, bool iswrite, 239 u32 *val) 240 { 241 struct cfg_msg_req_pkt req_pkt = {}; 242 struct cfg_msg_rsp_pkt rsp_pkt = {}; 243 struct msg_info info = {}; 244 u8 sub_msg_code; 245 int ret; 246 247 if (!pos_size_valid(pos, size)) { 248 ub_err(uent, "pos or size invalid, pos=%#llx, size=%#x\n", pos, 249 size); 250 return -EINVAL; 251 } 252 253 if (!iswrite) 254 memset(val, 0xFF, size); 255 256 sub_msg_code = gen_cfg_sub_msg_code(iswrite, pos); 257 ub_msg_pkt_header_init(&req_pkt.header, uent, CFG_MSG_PLD_SIZE, 258 code_gen(UB_MSG_CODE_CFG, sub_msg_code, 259 MSG_REQ), false); 260 261 ub_msg_pkt_req_init(uent, size, pos, (iswrite ? val : NULL), 262 &req_pkt.req_payload); 263 264 message_info_init(&info, uent, &req_pkt, &rsp_pkt, 265 (MSG_CFG_PKT_SIZE << MSG_REQ_SIZE_OFFSET) | 266 MSG_CFG_PKT_SIZE); 267 ret = message_sync_request(uent->message->mdev, &info, 268 req_pkt.header.msgetah.code); 269 if (ret) 270 return ret; 271 272 ret = ub_sync_cfg_rsp_check(uent, &req_pkt, &rsp_pkt); 273 if (!ret) 274 ub_sync_cfg_rsp_handle(&rsp_pkt.rsp_payload, size, pos, iswrite, val); 275 276 return ret; 277 } 278 279 int ub_send_cfg(struct ub_entity *uent, u8 size, u64 pos, u32 *val) 280 { 281 struct cfg_msg_req_pkt req_pkt = {}; 282 struct msg_info info = {}; 283 u8 sub_msg_code; 284 285 if (!uent || !uent->message || !uent->message->mdev) { 286 pr_err("uent or message or mdev is null\n"); 287 return -EINVAL; 288 } 289 290 if (!pos_size_valid(pos, size)) { 291 pr_err("pos or size invalid, pos=%#llx, size=%u\n", pos, size); 292 return -EINVAL; 293 } 294 295 sub_msg_code = gen_cfg_sub_msg_code(true, pos); 296 ub_msg_pkt_header_init(&req_pkt.header, uent, CFG_MSG_PLD_SIZE, 297 code_gen(UB_MSG_CODE_CFG, sub_msg_code, 298 MSG_REQ), false); 299 300 ub_msg_pkt_req_init(uent, size, pos, val, 301 &req_pkt.req_payload); 302 303 message_info_init(&info, uent, &req_pkt, NULL, 304 (MSG_CFG_PKT_SIZE << MSG_REQ_SIZE_OFFSET) | 305 MSG_CFG_PKT_SIZE); 306 return message_send(uent->message->mdev, &info, 307 req_pkt.header.msgetah.code); 308 } 309 310 int __ub_cfg_read_byte(struct ub_entity *uent, u64 pos, u8 *val) 311 { 312 if (!uent || !uent->message || !uent->message->mdev || !val) { 313 pr_err("uent or message or mdev is null\n"); 314 return -EINVAL; 315 } 316 317 return ub_sync_cfg(uent, (u8)sizeof(u8), pos, false, (u32 *)val); 318 } 319 320 int __ub_cfg_read_word(struct ub_entity *uent, u64 pos, u16 *val) 321 { 322 if (!uent || !uent->message || !uent->message->mdev || !val) { 323 pr_err("uent or message or mdev is null\n"); 324 return -EINVAL; 325 } 326 327 return ub_sync_cfg(uent, (u8)sizeof(u16), pos, false, (u32 *)val); 328 } 329 330 int __ub_cfg_read_dword(struct ub_entity *uent, u64 pos, u32 *val) 331 { 332 if (!uent || !uent->message || !uent->message->mdev || !val) { 333 pr_err("uent or message or mdev is null\n"); 334 return -EINVAL; 335 } 336 337 return ub_sync_cfg(uent, (u8)sizeof(u32), pos, false, val); 338 } 339 340 int __ub_cfg_write_byte(struct ub_entity *uent, u64 pos, u8 val) 341 { 342 if (!uent || !uent->message || !uent->message->mdev) { 343 pr_err("uent or message or mdev is null\n"); 344 return -EINVAL; 345 } 346 347 return ub_sync_cfg(uent, (u8)sizeof(u8), pos, true, (u32 *)&val); 348 } 349 350 int __ub_cfg_write_word(struct ub_entity *uent, u64 pos, u16 val) 351 { 352 if (!uent || !uent->message || !uent->message->mdev) { 353 pr_err("uent or message or mdev is null\n"); 354 return -EINVAL; 355 } 356 357 return ub_sync_cfg(uent, (u8)sizeof(u16), pos, true, (u32 *)&val); 358 } 359 360 int __ub_cfg_write_dword(struct ub_entity *uent, u64 pos, u32 val) 361 { 362 if (!uent || !uent->message || !uent->message->mdev) { 363 pr_err("uent or message or mdev is null\n"); 364 return -EINVAL; 365 } 366 367 return ub_sync_cfg(uent, (u8)sizeof(u32), pos, true, (u32 *)&val); 368 } 369

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