[thomash:topic/ttm_region 39/46] drivers/gpu/drm/i915/gem/i915_gem_ttm.c:481:6: error: no previous prototype for 'i915_ttm_bo_destroy'

[thomash:topic/ttm_region 39/46] drivers/gpu/drm/i915/gem/i915_gem_ttm.c:481:6: error: no previous prototype for 'i915_ttm_bo_destroy'

[kernel test robot]

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tree:   git://people.freedesktop.org/~thomash/linux topic/ttm_region
head:   97d67719835df8bdbeb83628848802770d675cca
commit: e57fe7c9668924480d3209706ef85d89f0d3f150 [39/46] drm/i915/ttm: Introduce a TTM gem object backend
config: i386-randconfig-s002-20210506 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        git remote add thomash git://people.freedesktop.org/~thomash/linux
        git fetch --no-tags thomash topic/ttm_region
        git checkout e57fe7c9668924480d3209706ef85d89f0d3f150
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/i915/gem/i915_gem_ttm.c:481:6: error: no previous prototype for 'i915_ttm_bo_destroy' [-Werror=missing-prototypes]
     481 | void i915_ttm_bo_destroy(struct ttm_buffer_object *bo)
         |      ^~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/i915_ttm_bo_destroy +481 drivers/gpu/drm/i915/gem/i915_gem_ttm.c

   480	
 > 481	void i915_ttm_bo_destroy(struct ttm_buffer_object *bo)
   482	{
   483		struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo);
   484	
   485		i915_gem_object_release_memory_region(obj);
   486		call_rcu(&obj->rcu, __i915_gem_free_object_rcu);
   487	}
   488	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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