Hi Somalapuram, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Somalapuram-Amaranath/drm-ttm-replace-busy-placement-with-flags-v2/20231109-104055 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20231109023843.32326-1-Amaranath.Somalapuram%40amd.com patch subject: [PATCH] drm/ttm: replace busy placement with flags v2 config: i386-buildonly-randconfig-001-20231109 (https://download.01.org/0day-ci/archive/20231109/202311091846.P6fN32iP-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231109/202311091846.P6fN32iP-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/202311091846.P6fN32iP-lkp@xxxxxxxxx/ All warnings (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:847:2: >> drivers/gpu/drm/i915/gem/i915_gem_ttm.c:165:18: warning: 'places[0].flags' is used uninitialized [-Wuninitialized] 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:837:26: note: 'places' declared here 837 | struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1]; | ^~~~~~ 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/wiki
