Hi Srinivas, FYI, the error/warning still remains. tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.4 head: abafefebd1f1e040eef74e4ab571ea08bf745641 commit: a4704c54d84d1e391275ad6ac10ce0e7c9157505 [1138/1768] rtc: zynqmp: Add calibration set and get support config: i386-randconfig-a005-20211214 (https://download.01.org/0day-ci/archive/20211215/202112151241.9uhyjqbB-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/Xilinx/linux-xlnx/commit/a4704c54d84d1e391275ad6ac10ce... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.4 git checkout a4704c54d84d1e391275ad6ac10ce0e7c9157505 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ld: drivers/rtc/rtc-zynqmp.o: in function `xlnx_rtc_read_offset': ld: drivers/rtc/rtc-zynqmp.o: in function `xlnx_rtc_set_offset': drivers/rtc/rtc-zynqmp.c:223: undefined reference to `__divdi3' vim +198 drivers/rtc/rtc-zynqmp.c 192 193 static int xlnx_rtc_read_offset(struct device *dev, long *offset) 194 { 195 struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); 196 long offset_val; 197 unsigned int reg; 199 200 reg = readl(xrtcdev->reg_base + RTC_CALIB_RD); 201 202 /* Offset with seconds ticks */ 203 offset_val = reg & RTC_TICK_MASK; 204 offset_val = offset_val - xrtcdev->calibval; 205 offset_val = offset_val * tick_mult; 206 207 /* Offset with fractional ticks */ 208 if (reg & RTC_FR_EN) 209 offset_val += ((reg & RTC_FR_MASK) >> RTC_FR_DATSHIFT) 210 * (tick_mult / RTC_FR_MAX_TICKS); 211 *offset = offset_val; 212 213 return 0; 214 } 215 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org