tree: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next head: 3863293a96c3e2481192b435fe0d85feed1ea47c commit: b517229ca2f7836125be58997808f2803f9ebc86 [14/30] ASoC: nau8810: use 64-bit arithmetic instead of 32-bit config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout b517229ca2f7836125be58997808f2803f9ebc86 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=arm All errors (new ones prefixed by >>): sound/soc/codecs/nau8810.o: In function `nau88l0_calc_pll': >> nau8810.c:(.text+0x894): undefined reference to `__aeabi_uldivmod' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation