Re: [PATCH] drm/vboxvideo: Used the vram helper

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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

Attachment: .config.gz
Description: application/gzip

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