Hi Anusha, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-tip/drm-tip] [also build test WARNING on next-20210701] [cannot apply to drm-intel/for-linux-next v5.13] [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/Anusha-Srivatsa/Stepping-substepping-reorg-for-DMC/20210702-033236 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: x86_64-randconfig-a015-20210630 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9eb613b2de3163686b1a4bd1160f15ac56a4b083) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/5d13218aefcba8e3bc4c4d4371988e08e0cf8bd3 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Anusha-Srivatsa/Stepping-substepping-reorg-for-DMC/20210702-033236 git checkout 5d13218aefcba8e3bc4c4d4371988e08e0cf8bd3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_dmc.c:250:35: warning: unused variable 'no_stepping_info' [-Wunused-const-variable] static const struct stepping_info no_stepping_info = { '*', '*' }; ^ 1 warning generated. vim +/no_stepping_info +250 drivers/gpu/drm/i915/display/intel_dmc.c 03256487fee340 drivers/gpu/drm/i915/display/intel_dmc.c Anusha Srivatsa 2021-05-26 249 1bb4308e713042 drivers/gpu/drm/i915/intel_csr.c Chris Wilson 2016-03-07 @250 static const struct stepping_info no_stepping_info = { '*', '*' }; 5d13218aefcba8 drivers/gpu/drm/i915/display/intel_dmc.c Anusha Srivatsa 2021-07-01 251 struct stepping_info *display_step; 1bb4308e713042 drivers/gpu/drm/i915/intel_csr.c Chris Wilson 2016-03-07 252 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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