Hi Vinay, Thank you for the 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 tegra-drm/drm/tegra/for-next drm/drm-next v5.14-rc2 next-20210721] [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/Vinay-Belgaumkar/drm-i915-guc-Enable-GuC-based-power-management-features/20210722-001528 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: x86_64-randconfig-a016-20210720 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c781eb153bfbd1b52b03efe34f56bbeccbb8aba6) 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/1c6f8cf3c2757db7a87fceef08834f4e0e14f2f9 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Vinay-Belgaumkar/drm-i915-guc-Enable-GuC-based-power-management-features/20210722-001528 git checkout 1c6f8cf3c2757db7a87fceef08834f4e0e14f2f9 # 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/gt/uc/intel_guc_debugfs.c:67:6: warning: no previous prototype for function 'intel_eval_slpc_support' [-Wmissing-prototypes] bool intel_eval_slpc_support(void *data) ^ drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c:67:1: note: declare 'static' if the function is not intended to be used outside of this translation unit bool intel_eval_slpc_support(void *data) ^ static 1 warning generated. -- drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c:238:5: warning: no previous prototype for function 'slpc_decode_min_freq' [-Wmissing-prototypes] u32 slpc_decode_min_freq(struct intel_guc_slpc *slpc) ^ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c:238:1: note: declare 'static' if the function is not intended to be used outside of this translation unit u32 slpc_decode_min_freq(struct intel_guc_slpc *slpc) ^ static drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c:250:5: warning: no previous prototype for function 'slpc_decode_max_freq' [-Wmissing-prototypes] u32 slpc_decode_max_freq(struct intel_guc_slpc *slpc) ^ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c:250:1: note: declare 'static' if the function is not intended to be used outside of this translation unit u32 slpc_decode_max_freq(struct intel_guc_slpc *slpc) ^ static >> drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c:445:17: warning: variable 'data' is uninitialized when used here [-Wuninitialized] slpc_tasks = &data->task_state_data; ^~~~ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c:436:31: note: initialize the variable 'data' to silence this warning struct slpc_shared_data *data; ^ = NULL 3 warnings generated. vim +/intel_eval_slpc_support +67 drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c 66 > 67 bool intel_eval_slpc_support(void *data) 68 { 69 struct intel_guc *guc; 70 71 guc = (struct intel_guc *)data; 72 return intel_guc_slpc_is_used(guc); 73 } 74 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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