Hi Medad, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on abelloni/rtc-next] [also build test WARNING on robh/for-next v5.18-rc7] [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] url: https://github.com/intel-lab-lkp/linux/commits/Medad-CChien/ARM-dts-nuvoton-Add-nuvoton-RTC3018Y-node/20220516-232940 base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220517/202205170654.jQqRSbra-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.2.0-20) 11.2.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/5c51862ee8030cfd9f2e955c10ee580f168663e3 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Medad-CChien/ARM-dts-nuvoton-Add-nuvoton-RTC3018Y-node/20220516-232940 git checkout 5c51862ee8030cfd9f2e955c10ee580f168663e3 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/rtc/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/rtc/rtc-nct3018y.c: In function 'nct3018y_rtc_read_time': >> drivers/rtc/rtc-nct3018y.c:192:26: warning: unused variable 'nct3018y' [-Wunused-variable] 192 | struct nct3018y *nct3018y = i2c_get_clientdata(client); | ^~~~~~~~ drivers/rtc/rtc-nct3018y.c: In function 'nct3018y_rtc_set_time': drivers/rtc/rtc-nct3018y.c:227:26: warning: unused variable 'nct3018y' [-Wunused-variable] 227 | struct nct3018y *nct3018y = i2c_get_clientdata(client); | ^~~~~~~~ drivers/rtc/rtc-nct3018y.c: In function 'nct3018y_rtc_set_alarm': drivers/rtc/rtc-nct3018y.c:292:26: warning: unused variable 'nct3018y' [-Wunused-variable] 292 | struct nct3018y *nct3018y = i2c_get_clientdata(client); | ^~~~~~~~ drivers/rtc/rtc-nct3018y.c: In function 'nct3018y_irq_enable': drivers/rtc/rtc-nct3018y.c:322:26: warning: unused variable 'nct3018y' [-Wunused-variable] 322 | struct nct3018y *nct3018y = i2c_get_clientdata(client); | ^~~~~~~~ In file included from include/linux/printk.h:555, from include/linux/kernel.h:29, from arch/x86/include/asm/percpu.h:27, from arch/x86/include/asm/current.h:6, from include/linux/mutex.h:14, from include/linux/kernfs.h:11, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/of.h:17, from include/linux/clk-provider.h:9, from drivers/rtc/rtc-nct3018y.c:5: drivers/rtc/rtc-nct3018y.c: In function 'nct3018y_probe': drivers/rtc/rtc-nct3018y.c:513:39: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] 513 | dev_dbg(&client->dev, "%s: NCT3018Y_BIT_TWO is :%d\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:134:29: note: in definition of macro '__dynamic_func_call' 134 | func(&id, ##__VA_ARGS__); \ | ^~~~~~~~~~~ include/linux/dynamic_debug.h:166:9: note: in expansion of macro '_dynamic_func_call' 166 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:155:9: note: in expansion of macro 'dynamic_dev_dbg' 155 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ include/linux/dev_printk.h:155:30: note: in expansion of macro 'dev_fmt' 155 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ drivers/rtc/rtc-nct3018y.c:513:17: note: in expansion of macro 'dev_dbg' 513 | dev_dbg(&client->dev, "%s: NCT3018Y_BIT_TWO is :%d\n", | ^~~~~~~ drivers/rtc/rtc-nct3018y.c:513:66: note: format string is defined here 513 | dev_dbg(&client->dev, "%s: NCT3018Y_BIT_TWO is :%d\n", | ~^ | | | int | %ld drivers/rtc/rtc-nct3018y.c:535:22: error: 'struct rtc_device' has no member named 'uie_unsupported' 535 | nct3018y->rtc->uie_unsupported = 1; | ^~ drivers/rtc/rtc-nct3018y.c:561:15: error: implicit declaration of function 'rtc_register_device'; did you mean 'i2c_unregister_device'? [-Werror=implicit-function-declaration] 561 | err = rtc_register_device(nct3018y->rtc); | ^~~~~~~~~~~~~~~~~~~ | i2c_unregister_device cc1: some warnings being treated as errors vim +/nct3018y +192 drivers/rtc/rtc-nct3018y.c 184 185 /* 186 * In the routines that deal directly with the nct3018y hardware, we use 187 * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch. 188 */ 189 static int nct3018y_rtc_read_time(struct device *dev, struct rtc_time *tm) 190 { 191 struct i2c_client *client = to_i2c_client(dev); > 192 struct nct3018y *nct3018y = i2c_get_clientdata(client); 193 unsigned char buf[10]; 194 int err; 195 196 err = nct3018y_read_block_data(client, NCT3018Y_REG_ST, 1, buf); 197 if (err) 198 return err; 199 200 if (!buf[0]) { 201 dev_err(&client->dev, " voltage <=1.7, date/time is not reliable.\n"); 202 return -EINVAL; 203 } 204 205 err = nct3018y_read_block_data(client, NCT3018Y_REG_SC, 10, buf); 206 if (err) 207 return err; 208 209 tm->tm_sec = bcd2bin(buf[0] & 0x7F); 210 tm->tm_min = bcd2bin(buf[2] & 0x7F); 211 tm->tm_hour = bcd2bin(buf[4] & 0x3F); /* rtc hr 0-24 */ 212 tm->tm_wday = buf[6] & 0x07; 213 tm->tm_mday = bcd2bin(buf[7] & 0x3F); 214 tm->tm_mon = bcd2bin(buf[8] & 0x1F) - 1 ; /* rtc mn 1-12 */ 215 tm->tm_year = bcd2bin(buf[9]) + 100; 216 217 dev_dbg(&client->dev, "%s:s=%d, m=%d, hr=%d, md=%d, m=%d, yr=%d, wd=%d\n", 218 __func__, tm->tm_sec, tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, 219 tm->tm_year, tm->tm_wday); 220 221 return 0; 222 } 223 -- 0-DAY CI Kernel Test Service https://01.org/lkp