tree: git://people.freedesktop.org/~thomash/linux topic/ttm_branch head: 4327ee2c8dd23ea964b13f1c0680d75bfb42e71b commit: 6b23c62c674f278d61858115f3e0bb05a35f3b89 [38/45] drm/i915/ttm: Introduce a TTM gem object backend config: i386-randconfig-a011-20210430 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add thomash git://people.freedesktop.org/~thomash/linux git fetch --no-tags thomash topic/ttm_branch git checkout 6b23c62c674f278d61858115f3e0bb05a35f3b89 # save the attached .config to linux build tree make W=1 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; All errors (new ones prefixed by >>): 29 | int i915_region_to_ttm_type(struct intel_memory_region *mem) | ^~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- 419 | void i915_ttm_bo_destroy(struct ttm_buffer_object *bo) | ^~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/i915_region_to_ttm_type +29 drivers/gpu/drm/i915/i915_ttm.c 23 24 /* 25 * Map the i915 memory regions to TTM memory types. We use the 26 * driver-private types for now, reserving TTM_PL_VRAM for stolen 27 * memory and TTM_PL_TT for GGTT use if decided to implement this. 28 */ 30 { 31 int type; 32 33 switch (mem->type) { 34 case INTEL_MEMORY_LOCAL: 35 return mem->instance + TTM_PL_PRIV; 36 case INTEL_MEMORY_STOLEN_SYSTEM: 37 return TTM_PL_VRAM; 38 case INTEL_MEMORY_STOLEN_LOCAL: 39 return TTM_PL_VRAM; 40 default: 41 GEM_BUG_ON(1); 42 fallthrough; 43 case INTEL_MEMORY_SYSTEM: 44 GEM_BUG_ON(mem->instance != 0); 45 return TTM_PL_SYSTEM; 46 } 47 48 type = mem->instance + TTM_PL_PRIV; 49 GEM_BUG_ON(type >= TTM_NUM_MEM_TYPES); 50 51 return type; 52 } 53 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org