Hi Dave, I love your patch! Perhaps something to improve:
[auto build test WARNING on drm-tip/drm-tip] [cannot apply to drm-intel/for-linux-next tegra-drm/drm/tegra/for-next linus/master drm/drm-next drm-exynos/exynos-drm-next v5.8 next-20200806] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Dave-Airlie/drm-amdgpu-ttm-move-vram-gtt-mgr-allocations-to-mman/20200807-083526 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: x86_64-randconfig-a015-20200806 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project aa57cabae2fc5abc08ab3e17b45f2890fc7c9e42) 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 # 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 <l...@intel.com> All warnings (new ones prefixed by >>): drivers/gpu/drm/radeon/radeon_ttm.c:754:5: warning: no previous prototype for function 'radeon_ttm_init' [-Wmissing-prototypes] int radeon_ttm_init(struct radeon_device *rdev) ^ drivers/gpu/drm/radeon/radeon_ttm.c:754:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int radeon_ttm_init(struct radeon_device *rdev) ^ static drivers/gpu/drm/radeon/radeon_ttm.c:812:6: warning: no previous prototype for function 'radeon_ttm_fini' [-Wmissing-prototypes] void radeon_ttm_fini(struct radeon_device *rdev) ^ drivers/gpu/drm/radeon/radeon_ttm.c:812:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void radeon_ttm_fini(struct radeon_device *rdev) ^ static >> drivers/gpu/drm/radeon/radeon_ttm.c:845:28: warning: variable 'man' is >> uninitialized when used here [-Wuninitialized] ttm_range_man_adjust_size(man, size >> PAGE_SHIFT); ^~~ drivers/gpu/drm/radeon/radeon_ttm.c:839:34: note: initialize the variable 'man' to silence this warning struct ttm_resource_manager *man; ^ = NULL drivers/gpu/drm/radeon/radeon_ttm.c:872:5: warning: no previous prototype for function 'radeon_mmap' [-Wmissing-prototypes] int radeon_mmap(struct file *filp, struct vm_area_struct *vma) ^ drivers/gpu/drm/radeon/radeon_ttm.c:872:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int radeon_mmap(struct file *filp, struct vm_area_struct *vma) ^ static 4 warnings generated. vim +/man +845 drivers/gpu/drm/radeon/radeon_ttm.c 811 > 812 void radeon_ttm_fini(struct radeon_device *rdev) 813 { 814 int r; 815 816 if (!rdev->mman.initialized) 817 return; 818 radeon_ttm_debugfs_fini(rdev); 819 if (rdev->stolen_vga_memory) { 820 r = radeon_bo_reserve(rdev->stolen_vga_memory, false); 821 if (r == 0) { 822 radeon_bo_unpin(rdev->stolen_vga_memory); 823 radeon_bo_unreserve(rdev->stolen_vga_memory); 824 } 825 radeon_bo_unref(&rdev->stolen_vga_memory); 826 } 827 ttm_range_man_fini(&rdev->mman.bdev, TTM_PL_VRAM); 828 ttm_range_man_fini(&rdev->mman.bdev, TTM_PL_TT); 829 ttm_bo_device_release(&rdev->mman.bdev); 830 radeon_gart_fini(rdev); 831 rdev->mman.initialized = false; 832 DRM_INFO("radeon: ttm finalized\n"); 833 } 834 835 /* this should only be called at bootup or when userspace 836 * isn't running */ 837 void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size) 838 { 839 struct ttm_resource_manager *man; 840 841 if (!rdev->mman.initialized) 842 return; 843 844 /* this just adjusts TTM size idea, which sets lpfn to the correct value */ > 845 ttm_range_man_adjust_size(man, size >> PAGE_SHIFT); 846 } 847 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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