[PATCH 2/2] drm: Remove CONFIG_DRM_KMS_CMA_HELPER option

[kernel test robot]

Hi Thomas,

I love your patch! Yet something to improve:

[auto build test ERROR on next-20211029]
[cannot apply to drm/drm-next shawnguo/for-next pinchartl-media/drm/du/next v5.15 v5.15-rc7 v5.15-rc6 v5.15]
[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/Thomas-Zimmermann/drm-Small-CMA-cleanups/20211101-161911
base:    bdcc9f6a568275aed4cc32fd2312432d2ff1b704
config: x86_64-randconfig-a004-20211101 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 82ed106567063ea269c6d5669278b733e173a42f)
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
        # https://github.com/0day-ci/linux/commit/c3c7ec5f9ccd90e78f0f2d3143505db4060bbf17
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Thomas-Zimmermann/drm-Small-CMA-cleanups/20211101-161911
        git checkout c3c7ec5f9ccd90e78f0f2d3143505db4060bbf17
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: module drm_cma_helper uses symbol dma_buf_vmap from namespace DMA_BUF, but does not import it.
>> ERROR: modpost: module drm_cma_helper uses symbol dma_buf_vunmap from namespace DMA_BUF, but does not import it.

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