Hi Tian, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.10-rc6 next-20201201] [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/Tian-Tao/drm-vboxvideo-Used-the-vram-helper/20201127-112000 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 85a2c56cb4454c73f56d3099d96942e7919b292f config: x86_64-randconfig-a016-20201202 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 2671fccf0381769276ca8246ec0499adcb9b0355) 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 # https://github.com/0day-ci/linux/commit/f3abc53a9794f39d04b604a243d28be17a88571f git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tian-Tao/drm-vboxvideo-Used-the-vram-helper/20201127-112000 git checkout f3abc53a9794f39d04b604a243d28be17a88571f # 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@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/vboxvideo/vbox_ttm.c:19:6: warning: incompatible integer to pointer conversion assigning to 'struct drm_vram_mm *' from 'int' [-Wint-conversion] vmm = drmm_vram_helper_init(dev, pci_resource_start(dev->pdev, 0), ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +19 drivers/gpu/drm/vboxvideo/vbox_ttm.c 12 13 int vbox_mm_init(struct vbox_private *vbox) 14 { 15 struct drm_vram_mm *vmm; 16 int ret; 17 struct drm_device *dev = &vbox->ddev; 18 > 19 vmm = drmm_vram_helper_init(dev, pci_resource_start(dev->pdev, 0), 20 vbox->available_vram_size); 21 if (IS_ERR(vmm)) { 22 ret = PTR_ERR(vmm); 23 DRM_ERROR("Error initializing VRAM MM; %d\n", ret); 24 return ret; 25 } 26 27 vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), 28 pci_resource_len(dev->pdev, 0)); 29 return 0; 30 } 31 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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