Hi Mary, kernel test robot noticed the following build errors: [auto build test ERROR on lee-mfd/for-mfd-next] [also build test ERROR on lee-mfd/for-mfd-fixes andi-shyti/i2c/i2c-host akpm-mm/mm-everything linus/master v6.11-rc1 next-20240802] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Mary-Strodl/x86-Add-basic-support-for-the-Congatec-CGEB-BIOS-interface/20240803-013725 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next patch link: https://lore.kernel.org/r/20240801160610.101859-2-mstrodl%40csh.rit.edu patch subject: [PATCH v2 1/2] x86: Add basic support for the Congatec CGEB BIOS interface config: x86_64-randconfig-002-20240804 (https://download.01.org/0day-ci/archive/20240804/202408040528.OmB08hFQ-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240804/202408040528.OmB08hFQ-lkp@xxxxxxxxx/reproduce) 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202408040528.OmB08hFQ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: drivers/mfd/congatec-cgeb.o: in function `cgeb_request': >> drivers/mfd/congatec-cgeb.c:303: undefined reference to `cn_netlink_send' >> ld: drivers/mfd/congatec-cgeb.c:312: undefined reference to `cn_netlink_send' ld: drivers/mfd/congatec-cgeb.o: in function `cgeb_exit': >> drivers/mfd/congatec-cgeb.c:1131: undefined reference to `cn_del_callback' ld: drivers/mfd/congatec-cgeb.o: in function `cgeb_init': >> drivers/mfd/congatec-cgeb.c:1054: undefined reference to `cn_add_callback' >> ld: drivers/mfd/congatec-cgeb.c:1113: undefined reference to `cn_del_callback' vim +303 drivers/mfd/congatec-cgeb.c 266 267 static int cgeb_request(struct cgeb_msg msg, struct cgeb_msg *out, 268 int (*callback)(struct cgeb_msg*, void*), void *user) 269 { 270 static int seq; 271 struct cn_msg *wrapper; 272 struct cgeb_request *req; 273 int err, retries = 0; 274 275 wrapper = (struct cn_msg*) kzalloc(sizeof(*wrapper) + sizeof(msg), 276 GFP_KERNEL); 277 if (!wrapper) 278 return -ENOMEM; 279 280 memset(wrapper, 0, sizeof(*wrapper)); 281 memcpy(&wrapper->id, &cgeb_cn_id, sizeof(cgeb_cn_id)); 282 283 wrapper->len = sizeof(msg); 284 wrapper->ack = get_random_u32(); 285 memcpy(wrapper + 1, &msg, sizeof(msg)); 286 287 mutex_lock(&cgeb_lock); 288 289 req = &cgeb_requests[seq]; 290 291 if (req->busy) { 292 mutex_unlock(&cgeb_lock); 293 err = -EBUSY; 294 goto out; 295 } 296 wrapper->seq = seq; 297 req->busy = CGEB_REQ_ACTIVE; 298 req->ack = wrapper->ack; 299 req->out = out; 300 req->callback = callback; 301 req->user = user; 302 > 303 err = cn_netlink_send(wrapper, 0, 0, GFP_KERNEL); 304 if (err == -ESRCH) { 305 err = cgeb_helper_start(); 306 if (err) { 307 pr_err("failed to execute %s\n", cgeb_helper_path); 308 pr_err("make sure that the cgeb helper is installed and" 309 " executable\n"); 310 } else { 311 do { > 312 err = cn_netlink_send(wrapper, 0, 0, 313 GFP_KERNEL); 314 if (err == -ENOBUFS) 315 err = 0; 316 if (err == -ESRCH) 317 msleep(30); 318 } while (err == -ESRCH && ++retries < 5); 319 } 320 } else if (err == -ENOBUFS) 321 err = 0; 322 323 kfree(wrapper); 324 325 if (++seq >= CGEB_REQUEST_MAX) 326 seq = 0; 327 328 mutex_unlock(&cgeb_lock); 329 330 if (err) 331 goto out; 332 333 /* Wait for a response to the request */ 334 err = wait_for_completion_interruptible_timeout( 335 &req->done, msecs_to_jiffies(20000)); 336 if (err == 0) { 337 pr_err("CGEB: Timed out running request of type %d!\n", 338 msg.type); 339 err = -ETIMEDOUT; 340 } else if (err > 0) 341 err = 0; 342 343 if (err) 344 goto out; 345 346 mutex_lock(&cgeb_lock); 347 348 if (req->busy != CGEB_REQ_DONE) { 349 pr_err("CGEB: BUG: Request is in a bad state?\n"); 350 err = -EINVAL; 351 } 352 353 req->busy = CGEB_REQ_IDLE; 354 mutex_unlock(&cgeb_lock); 355 out: 356 return err; 357 } 358 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
