Hi Michal, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Michal-Wajdeczko/drm-i915-guc-Add-GuC-oriented-print-macros/20230121-004232 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230120164050.1765-5-michal.wajdeczko%40intel.com patch subject: [PATCH 4/8] drm/i915/guc: Update GuC messages in intel_guc_ct.c config: i386-randconfig-a004 (https://download.01.org/0day-ci/archive/20230121/202301210330.zvfxkqjp-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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://github.com/intel-lab-lkp/linux/commit/e3ee219e703a4153b750288ac3e28cd2ea4130c1 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Michal-Wajdeczko/drm-i915-guc-Add-GuC-oriented-print-macros/20230121-004232 git checkout e3ee219e703a4153b750288ac3e28cd2ea4130c1 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/i915/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c:27:40: warning: unused function 'ct_to_i915' [-Wunused-function] static inline struct drm_i915_private *ct_to_i915(struct intel_guc_ct *ct) ^ 1 warning generated. vim +/ct_to_i915 +27 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c 6fb086e5e6ba82d Daniele Ceraolo Spurio 2021-06-02 26 6fb086e5e6ba82d Daniele Ceraolo Spurio 2021-06-02 @27 static inline struct drm_i915_private *ct_to_i915(struct intel_guc_ct *ct) 6fb086e5e6ba82d Daniele Ceraolo Spurio 2021-06-02 28 { 6fb086e5e6ba82d Daniele Ceraolo Spurio 2021-06-02 29 return ct_to_gt(ct)->i915; 6fb086e5e6ba82d Daniele Ceraolo Spurio 2021-06-02 30 } 6fb086e5e6ba82d Daniele Ceraolo Spurio 2021-06-02 31 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests