Hi Benjamin, [auto build test ERROR on abelloni/rtc-next] [also build test ERROR on v4.12-rc6 next-20170620] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Benjamin-Gaignard/rtc-stop-using-rtc-deprecated-functions/20170621-044455 base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next config: arm-u8500_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): drivers/built-in.o: In function `ab8540_rtc_set_alarm': >> drivers/rtc/rtc-ab8500.c:299: undefined reference to `__aeabi_uldivmod' drivers/rtc/rtc-ab8500.c:301: undefined reference to `__aeabi_uldivmod' drivers/built-in.o: In function `ab8500_rtc_set_time': drivers/rtc/rtc-ab8500.c:158: undefined reference to `__aeabi_uldivmod' drivers/rtc/rtc-ab8500.c:160: undefined reference to `__aeabi_uldivmod' drivers/built-in.o: In function `ab8500_rtc_set_alarm': drivers/rtc/rtc-ab8500.c:263: undefined reference to `__aeabi_uldivmod' vim +299 drivers/rtc/rtc-ab8500.c 45a9f91a Benjamin Gaignard 2017-06-20 293 secs = rtc_tm_to_time64(&alarm->time); 25d053cf Alexandre Torgue 2013-07-03 294 25d053cf Alexandre Torgue 2013-07-03 295 /* 25d053cf Alexandre Torgue 2013-07-03 296 * Convert it to the number of seconds since 01-01-2000 00:00:00 25d053cf Alexandre Torgue 2013-07-03 297 */ 25d053cf Alexandre Torgue 2013-07-03 298 secs -= get_elapsed_seconds(AB8500_RTC_EPOCH); 25d053cf Alexandre Torgue 2013-07-03 @299 mins = secs / 60; 25d053cf Alexandre Torgue 2013-07-03 300 25d053cf Alexandre Torgue 2013-07-03 301 buf[3] = secs % 60; 25d053cf Alexandre Torgue 2013-07-03 302 buf[2] = mins & 0xFF; :::::: The code at line 299 was first introduced by commit :::::: 25d053cf1040e6430fff679854b3710edb0b7fee drivers/rtc/rtc-ab8500.c: add second resolution to rtc driver :::::: TO: Alexandre Torgue :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation