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: [Intel-gfx] [PATCH] drm/ttm: replace busy placement with flags v2
config: i386-randconfig-012-20231109 
(https://download.01.org/0day-ci/archive/20231109/202311091943.7pztiigs-...@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): 
(https://download.01.org/0day-ci/archive/20231109/202311091943.7pztiigs-...@intel.com/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 <l...@intel.com>
| Closes: 
https://lore.kernel.org/oe-kbuild-all/202311091943.7pztiigs-...@intel.com/

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/i915/gem/i915_gem_ttm.c: In function 'i915_ttm_get_pages':
>> drivers/gpu/drm/i915/gem/i915_gem_ttm.c:165:18: warning: 'places.flags' is 
>> used uninitialized in this function [-Wuninitialized]
     165 |  places[0].flags |= TTM_PL_FLAG_IDLE;
         |                  ^~


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

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