[Intel-gfx] [PATCH 1/2] drm/i915/dmc: Use RUNTIME_INFO->step for DMC

[kernel test robot]

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 at intel.com>

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@lists.01.org
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