tree: git://anongit.freedesktop.org/drm/drm-intel drm-intel-gt-next head: 97d5539632501af59290ead8f832e0ca6b6f69e7 commit: 97d5539632501af59290ead8f832e0ca6b6f69e7 [8/8] drm/i915/region: convert object_create into object_init config: x86_64-randconfig-a012-20210115 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 5b42fd8dd4e7e29125a09a41a33af7c9cb57d144) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git remote add drm-drm-intel git://anongit.freedesktop.org/drm/drm-intel git fetch --no-tags drm-drm-intel drm-intel-gt-next git checkout 97d5539632501af59290ead8f832e0ca6b6f69e7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): int __i915_gem_object_create_stolen(struct intel_memory_region *mem, ^ drivers/gpu/drm/i915/gem/i915_gem_stolen.c:624:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __i915_gem_object_create_stolen(struct intel_memory_region *mem, ^ static int _i915_gem_object_stolen_init(struct intel_memory_region *mem, ^ drivers/gpu/drm/i915/gem/i915_gem_stolen.c:649:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int _i915_gem_object_stolen_init(struct intel_memory_region *mem, ^ static 2 errors generated. vim +/__i915_gem_object_create_stolen +624 drivers/gpu/drm/i915/gem/i915_gem_stolen.c 623 625 struct drm_i915_gem_object *obj, 626 struct drm_mm_node *stolen) 627 { 628 static struct lock_class_key lock_class; 629 unsigned int cache_level; 630 int err; 631 632 drm_gem_private_object_init(&mem->i915->drm, &obj->base, stolen->size); 633 i915_gem_object_init(obj, &i915_gem_object_stolen_ops, &lock_class); 634 635 obj->stolen = stolen; 636 obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT; 637 cache_level = HAS_LLC(mem->i915) ? I915_CACHE_LLC : I915_CACHE_NONE; 638 i915_gem_object_set_cache_coherency(obj, cache_level); 639 640 err = i915_gem_object_pin_pages(obj); 641 if (err) 642 return err; 643 644 i915_gem_object_init_memory_region(obj, mem, 0); 645 646 return 0; 647 } 648 650 struct drm_i915_gem_object *obj, 651 resource_size_t size, 652 unsigned int flags) 653 { 654 struct drm_i915_private *i915 = mem->i915; 655 struct drm_mm_node *stolen; 656 int ret; 657 658 if (!drm_mm_initialized(&i915->mm.stolen)) 659 return -ENODEV; 660 661 if (size == 0) 662 return -EINVAL; 663 664 stolen = kzalloc(sizeof(*stolen), GFP_KERNEL); 665 if (!stolen) 666 return -ENOMEM; 667 668 ret = i915_gem_stolen_insert_node(i915, stolen, size, 4096); 669 if (ret) 670 goto err_free; 671 672 ret = __i915_gem_object_create_stolen(mem, obj, stolen); 673 if (ret) 674 goto err_remove; 675 676 return 0; 677 678 err_remove: 679 i915_gem_stolen_remove_node(i915, stolen); 680 err_free: 681 kfree(stolen); 682 return ret; 683 } 684 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org