tree: git://anongit.freedesktop.org/drm-intel drm-intel-gt-next head: 13c2ceb6addb6b14468e09b75832c98909eed8e7 commit: d53ec322dc7de32a59bf1c2a56b93e90fc2f1c28 [7/8] drm/i915/ttm: switch over to ttm_buddy_man config: i386-defconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add drm-intel git://anongit.freedesktop.org/drm-intel git fetch --no-tags drm-intel drm-intel-gt-next git checkout d53ec322dc7de32a59bf1c2a56b93e90fc2f1c28 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the drm-intel/drm-intel-gt-next HEAD ca319ee9ca6a6ef95143df8d0a57b2941c2a9566 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): 181 | void intel_region_ttm_node_free(struct intel_memory_region *mem, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/intel_region_ttm_node_free +181 drivers/gpu/drm/i915/intel_region_ttm.c 180 182 struct ttm_resource *res) 183 { 184 struct ttm_resource_manager *man = mem->region_private; 185 186 man->func->free(man, res); 187 } 188 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org