tree: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git devfreq-testing-exynos-interconnect head: 9210fff017f663bfbc2384e50280bffa401db89e commit: 25812216042fd6c2015615d8468bf80f5993e449 [9/12] interconnect: Add generic interconnect driver for Exynos SoCs config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/commit/... git remote add chanwoo https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git git fetch --no-tags chanwoo devfreq-testing-exynos-interconnect git checkout 25812216042fd6c2015615d8468bf80f5993e449 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 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 >>): drivers/interconnect/exynos/exynos.c: In function 'exynos_icc_get_parent': 46 | icc_np = of_icc_get_from_provider(&args); | ^ cc1: some warnings being treated as errors vim +46 drivers/interconnect/exynos/exynos.c 29 30 static struct icc_node *exynos_icc_get_parent(struct device_node *np) 31 { 32 struct of_phandle_args args; 33 struct icc_node *icc_np; 34 int num, ret; 35 36 num = of_count_phandle_with_args(np, "samsung,interconnect-parent", 37 "#interconnect-cells"); 38 if (num != 1) 39 return NULL; /* parent nodes are optional */ 40 41 ret = of_parse_phandle_with_args(np, "samsung,interconnect-parent", 42 "#interconnect-cells", 0, &args); 43 if (ret < 0) 44 return ERR_PTR(ret); 45 47 of_node_put(args.np); 48 49 return icc_np; 50 } 51 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org