tree: https://github.com/alexandrebelloni/linux rtc-misc head: 3c0fbf8783c942e63625329399b2a32847369934 commit: f637dc2e81ffea3ef980682652dfccc1f2294e86 [34/39] rtc: cros-ec: let the core handle rtc range config: sparc64-allmodconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout f637dc2e81ffea3ef980682652dfccc1f2294e86 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers//rtc/rtc-cros-ec.c: In function 'cros_ec_rtc_probe': err = rtc_register_device(cros_ec_rtc->rtc); ^~~ drivers//rtc/rtc-cros-ec.c:354:2: note: each undeclared identifier is reported only once for each function it appears in vim +/err +354 drivers//rtc/rtc-cros-ec.c 314 315 static SIMPLE_DEV_PM_OPS(cros_ec_rtc_pm_ops, cros_ec_rtc_suspend, 316 cros_ec_rtc_resume); 317 318 static int cros_ec_rtc_probe(struct platform_device *pdev) 319 { 320 struct cros_ec_dev *ec_dev = dev_get_drvdata(pdev->dev.parent); 321 struct cros_ec_device *cros_ec = ec_dev->ec_dev; 322 struct cros_ec_rtc *cros_ec_rtc; 323 struct rtc_time tm; 324 int ret; 325 326 cros_ec_rtc = devm_kzalloc(&pdev->dev, sizeof(*cros_ec_rtc), 327 GFP_KERNEL); 328 if (!cros_ec_rtc) 329 return -ENOMEM; 330 331 platform_set_drvdata(pdev, cros_ec_rtc); 332 cros_ec_rtc->cros_ec = cros_ec; 333 334 /* Get initial time */ 335 ret = cros_ec_rtc_read_time(&pdev->dev, &tm); 336 if (ret) { 337 dev_err(&pdev->dev, "failed to read RTC time\n"); 338 return ret; 339 } 340 341 ret = device_init_wakeup(&pdev->dev, 1); 342 if (ret) { 343 dev_err(&pdev->dev, "failed to initialize wakeup\n"); 344 return ret; 345 } 346 347 cros_ec_rtc->rtc = devm_rtc_allocate_device(&pdev->dev); 348 if (IS_ERR(cros_ec_rtc->rtc)) 349 return PTR_ERR(cros_ec_rtc->rtc); 350 351 cros_ec_rtc->rtc->ops = &cros_ec_rtc_ops; 352 cros_ec_rtc->rtc->range_max = U32_MAX; 353 355 if (err) 356 return err; 357 358 /* Get RTC events from the EC. */ 359 cros_ec_rtc->notifier.notifier_call = cros_ec_rtc_event; 360 ret = blocking_notifier_chain_register(&cros_ec->event_notifier, 361 &cros_ec_rtc->notifier); 362 if (ret) { 363 dev_err(&pdev->dev, "failed to register notifier\n"); 364 return ret; 365 } 366 367 return 0; 368 } 369 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation