tree: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git devfreq-testing-qcom-l2 head: 0710a546fe23fc744371ae2eaab3877a2678f647 commit: f3ff8a27ab2f41bffcc6d620e6f475a7a8822ccf [1/3] 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-qcom-l2 git checkout f3ff8a27ab2f41bffcc6d620e6f475a7a8822ccf # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from drivers/memory/tegra/tegra20-emc.c:11: include/linux/devfreq.h:117:2: error: expected specifier-qualifier-list before '*' token 117 | * @up_threshold: If the load is over this value, the frequency jumps. | ^ include/linux/devfreq.h:117:4: error: stray '@' in program 117 | * @up_threshold: If the load is over this value, the frequency jumps. | ^ include/linux/devfreq.h:119:4: error: stray '@' in program 119 | * @down_differential: If the load is under upthreshold - downdifferential, | ^ drivers/memory/tegra/tegra20-emc.c:203:38: error: field 'ondemand_data' has incomplete type 203 | struct devfreq_simple_ondemand_data ondemand_data; | ^~~~~~~~~~~~~ drivers/memory/tegra/tegra20-emc.c:1041:3: error: 'struct devfreq_dev_profile' has no member named 'target' 1041 | .target = tegra_emc_devfreq_target, | ^~~~~~ drivers/memory/tegra/tegra20-emc.c:1041:12: error: incompatible types when initializing type 'enum devfreq_timer' using type 'int (*)(struct device *, long unsigned int *, u32)' {aka 'int (*)(struct device *, long unsigned int *, unsigned int)'} 1041 | .target = tegra_emc_devfreq_target, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/memory/tegra/tegra20-emc.c:1042:3: error: 'struct devfreq_dev_profile' has no member named 'get_dev_status' 1042 | .get_dev_status = tegra_emc_devfreq_get_dev_status, | ^~~~~~~~~~~~~~ 1042 | .get_dev_status = tegra_emc_devfreq_get_dev_status, | ^ vim +1042 drivers/memory/tegra/tegra20-emc.c dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 1038 dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 1039 static struct devfreq_dev_profile tegra_emc_devfreq_profile = { dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 1040 .polling_ms = 30, dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 1041 .target = tegra_emc_devfreq_target, dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 @1042 .get_dev_status = tegra_emc_devfreq_get_dev_status, dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 1043 }; dedf62d6f17fc9 Dmitry Osipenko 2020-11-11 1044 :::::: The code at line 1042 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