Hi Christian, I love your patch! Yet something to improve: [auto build test ERROR on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Christian-K-nig/drm-ttm-stop-allocating-dummy-resources-during-BO-creation/20230124-205939 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230124125726.13323-5-christian.koenig%40amd.com patch subject: [PATCH 5/5] drm/ttm: replace busy placement with flags v2 config: i386-defconfig (https://download.01.org/0day-ci/archive/20230125/202301251900.qqxH4BLi-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/1b5a737f3331c8493708ed779338243cd70dde6a git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Christian-K-nig/drm-ttm-stop-allocating-dummy-resources-during-BO-creation/20230124-205939 git checkout 1b5a737f3331c8493708ed779338243cd70dde6a # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In function 'i915_ttm_placement_from_obj', inlined from 'i915_ttm_get_pages' at drivers/gpu/drm/i915/gem/i915_gem_ttm.c:841:2: >> drivers/gpu/drm/i915/gem/i915_gem_ttm.c:165:25: error: 'places[0].flags' is used uninitialized [-Werror=uninitialized] 165 | places[0].flags |= TTM_PL_FLAG_IDLE; | ^~ drivers/gpu/drm/i915/gem/i915_gem_ttm.c: In function 'i915_ttm_get_pages': drivers/gpu/drm/i915/gem/i915_gem_ttm.c:831:26: note: 'places' declared here 831 | struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1]; | ^~~~~~ cc1: all warnings being treated as errors vim +165 drivers/gpu/drm/i915/gem/i915_gem_ttm.c 155 156 static void 157 i915_ttm_placement_from_obj(const struct drm_i915_gem_object *obj, 158 struct ttm_place *places, 159 struct ttm_placement *placement) 160 { 161 unsigned int num_allowed = obj->mm.n_placements; 162 unsigned int flags = obj->flags; 163 unsigned int i; 164 > 165 places[0].flags |= TTM_PL_FLAG_IDLE; 166 i915_ttm_place_from_region(num_allowed ? obj->mm.placements[0] : 167 obj->mm.region, &places[0], obj->bo_offset, 168 obj->base.size, flags); 169 170 /* Cache this on object? */ 171 for (i = 0; i < num_allowed; ++i) { 172 i915_ttm_place_from_region(obj->mm.placements[i], 173 &places[i + 1], obj->bo_offset, 174 obj->base.size, flags); 175 places[i + 1].flags |= TTM_PL_FLAG_BUSY; 176 } 177 178 placement->num_placement = num_allowed + 1; 179 placement->placement = places; 180 } 181 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
