Hi Jingbao, kernel test robot noticed the following build errors: [auto build test ERROR on abelloni/rtc-next] [also build test ERROR on linus/master v6.7-rc2 next-20231121] [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/Jingbao-Qiu/dt-bindings-rtc-add-binding-for-Sophgo-CV1800B-rtc-controller/20231121-174927 base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next patch link: https://lore.kernel.org/r/20231121094642.2973795-3-qiujingbao.dlmu%40gmail.com patch subject: [PATCH 2/3] rtc: add rtc controller support for Sophgo CV1800B SoC config: parisc-allmodconfig (https://download.01.org/0day-ci/archive/20231122/202311220129.aOYelwJQ-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231122/202311220129.aOYelwJQ-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/202311220129.aOYelwJQ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/rtc/rtc-cv1800b.c: In function 'cv1800b_rtc_probe': >> drivers/rtc/rtc-cv1800b.c:246:16: error: implicit declaration of function 'rtc_register_device'; did you mean 'devm_rtc_register_device'? [-Werror=implicit-function-declaration] 246 | return rtc_register_device(rtc->rtc_dev); | ^~~~~~~~~~~~~~~~~~~ | devm_rtc_register_device cc1: some warnings being treated as errors vim +246 drivers/rtc/rtc-cv1800b.c 189 190 static int cv1800b_rtc_probe(struct platform_device *pdev) 191 { 192 struct cv1800b_rtc_priv *rtc; 193 struct resource *res; 194 int ret; 195 196 rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL); 197 if (!rtc) 198 return -ENOMEM; 199 200 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 201 if (!res) { 202 ret = -ENODEV; 203 goto err; 204 } 205 206 rtc->core_map = devm_ioremap_resource(&pdev->dev, res); 207 if (IS_ERR(rtc->core_map)) { 208 ret = PTR_ERR(rtc->core_map); 209 goto err; 210 } 211 212 rtc->irq = platform_get_irq(pdev, 0); 213 platform_set_drvdata(pdev, rtc); 214 if (rtc->irq < 0) { 215 ret = -EINVAL; 216 goto err; 217 } 218 219 ret = 220 devm_request_irq(&pdev->dev, rtc->irq, cv1800b_rtc_irq_handler, 221 IRQF_SHARED, "rtc alarm", &pdev->dev); 222 if (ret) 223 goto err; 224 225 rtc->clk = devm_clk_get(&pdev->dev, NULL); 226 if (IS_ERR(rtc->clk)) { 227 dev_err(&pdev->dev, "no clock"); 228 ret = PTR_ERR(rtc->clk); 229 goto err; 230 } 231 ret = clk_prepare_enable(rtc->clk); 232 if (ret) 233 goto err; 234 ret = cv1800b_rtc_softinit(rtc); 235 if (ret) 236 goto err; 237 cv1800b_rtc_alarm_irq_enable(&pdev->dev, 1); 238 rtc->rtc_dev = devm_rtc_allocate_device(&pdev->dev); 239 if (IS_ERR(rtc->rtc_dev)) { 240 ret = PTR_ERR(rtc->rtc_dev); 241 goto err; 242 } 243 rtc->rtc_dev->range_max = U32_MAX; 244 rtc->rtc_dev->ops = &cv800b_rtc_ops; 245 > 246 return rtc_register_device(rtc->rtc_dev); 247 err: 248 return dev_err_probe(&pdev->dev, ret, "Failed to init cv1800b rtc\n"); 249 } 250 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki