Hi Andi, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-intel/for-linux-next-fixes drm-tip/drm-tip drm/drm-next drm-exynos/exynos-drm-next drm-misc/drm-misc-next linus/master v6.11-rc5 next-20240826] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Andi-Shyti/drm-i915-gt-Avoid-using-masked-workaround-for-CCS_MODE-setting/20240826-165045 base: git://anongit.freedesktop.org/drm-intel for-linux-next patch link: https://lore.kernel.org/r/20240823130855.72436-15-andi.shyti%40linux.intel.com patch subject: [PATCH v3 14/15] drm/i915/gt: Implement creation and removal routines for CCS engines config: i386-buildonly-randconfig-002-20240827 (https://download.01.org/0day-ci/archive/20240827/202408270545.o4dlO6La-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240827/202408270545.o4dlO6La-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202408270545.o4dlO6La-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.c:164:12: warning: function 'rb_engine_cmp' is not needed and will not be emitted [-Wunneeded-internal-declaration] 164 | static int rb_engine_cmp(struct rb_node *rb_new, const struct rb_node *rb_old) | ^~~~~~~~~~~~~ 1 warning generated. vim +/rb_engine_cmp +164 drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.c 163 > 164 static int rb_engine_cmp(struct rb_node *rb_new, const struct rb_node *rb_old) 165 { 166 struct intel_engine_cs *new = rb_to_uabi_engine(rb_new); 167 struct intel_engine_cs *old = rb_to_uabi_engine(rb_old); 168 169 if (new->uabi_class - old->uabi_class == 0) 170 return new->uabi_instance - old->uabi_instance; 171 172 return new->uabi_class - old->uabi_class; 173 } 174 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki