Hi Andi, I love your patch! Perhaps something to improve: [auto build test WARNING on drm-tip/drm-tip] [cannot apply to drm-intel/for-linux-next drm-exynos/exynos-drm-next drm/drm-next tegra-drm/drm/tegra/for-next airlied/drm-next v5.16 next-20220112] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Andi-Shyti/Introduce-multitile-s... base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20220113/202201130337.jfFCSP6H-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/0day-ci/linux/commit/67f2b5659689154c03d9cc34cbf167367... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Andi-Shyti/Introduce-multitile-support/20220111-201712 git checkout 67f2b5659689154c03d9cc34cbf167367c4da39e # save the config file to linux build tree mkdir build_dir make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) vim +/dev_attr_rps_act_freq_mhz +303 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c 293 294 #define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \ 295 struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \ 296 struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store) 297 298 #define INTEL_GT_RPS_SYSFS_ATTR_RO(_name) \ 299 INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL) 300 #define INTEL_GT_RPS_SYSFS_ATTR_RW(_name) \ 301 INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store) 302 308 309 static DEVICE_ATTR_RO(vlv_rpe_freq_mhz); 310 311 static ssize_t rps_rp_mhz_show(struct device *dev, 312 struct device_attribute *attr, 313 char *buff); 314 318 319 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org