tree: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git devfreq-testing head: 82254c87f7c13ff0ca73ca9a8c776ddd1c638f9e commit: 82254c87f7c13ff0ca73ca9a8c776ddd1c638f9e [5/5] PM / devfreq: Add new up_threshold and down_differential sysfs attrs config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-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 git checkout 82254c87f7c13ff0ca73ca9a8c776ddd1c638f9e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 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 >>): 203 | struct devfreq_simple_ondemand_data ondemand_data; | ^~~~~~~~~~~~~ vim +/ondemand_data +203 drivers/memory/tegra/tegra20-emc.c d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 175 96e5da7c842424 Dmitry Osipenko 2018-10-21 176 struct tegra_emc { 96e5da7c842424 Dmitry Osipenko 2018-10-21 177 struct device *dev; d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 178 struct tegra_mc *mc; d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 179 struct icc_provider provider; 96e5da7c842424 Dmitry Osipenko 2018-10-21 180 struct notifier_block clk_nb; 96e5da7c842424 Dmitry Osipenko 2018-10-21 181 struct clk *clk; 96e5da7c842424 Dmitry Osipenko 2018-10-21 182 void __iomem *regs; d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 183 unsigned int dram_bus_width; 96e5da7c842424 Dmitry Osipenko 2018-10-21 184 96e5da7c842424 Dmitry Osipenko 2018-10-21 185 struct emc_timing *timings; 96e5da7c842424 Dmitry Osipenko 2018-10-21 186 unsigned int num_timings; 8209eefa3d379d Thierry Reding 2019-12-22 187 8209eefa3d379d Thierry Reding 2019-12-22 188 struct { 8209eefa3d379d Thierry Reding 2019-12-22 189 struct dentry *root; 8209eefa3d379d Thierry Reding 2019-12-22 190 unsigned long min_rate; 8209eefa3d379d Thierry Reding 2019-12-22 191 unsigned long max_rate; 8209eefa3d379d Thierry Reding 2019-12-22 192 } debugfs; d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 193 d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 194 /* d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 195 * There are multiple sources in the EMC driver which could request d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 196 * a min/max clock rate, these rates are contained in this array. d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 197 */ d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 198 struct emc_rate_request requested_rate[EMC_RATE_TYPE_MAX]; d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 199 d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 200 /* protect shared rate-change code path */ d5ef16ba5fbe12 Dmitry Osipenko 2020-11-04 201 struct mutex rate_lock; dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 202 dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 @203 struct devfreq_simple_ondemand_data ondemand_data; 96e5da7c842424 Dmitry Osipenko 2018-10-21 204 }; 96e5da7c842424 Dmitry Osipenko 2018-10-21 205 :::::: The code at line 203 was first introduced by commit :::::: dedf62d6f17fc9cf0389602b6d3d7533cc218679 memory: tegra20-emc: Add devfreq support :::::: TO: Dmitry Osipenko <digetx(a)gmail.com&gt; :::::: CC: Krzysztof Kozlowski <krzk(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org