Hi "Christian, I love your patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on staging/staging-testing linux/master linus/master v5.9-rc8 next-20201008] [cannot apply to mmotm/master] [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/Christian-K-nig/mm-introduce-vma_set_file-function-v2/20201008-192433 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: arm-randconfig-r021-20201008 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 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/839555b050d42ba052565bb71a11223e3d649c7a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Christian-K-nig/mm-introduce-vma_set_file-function-v2/20201008-192433 git checkout 839555b050d42ba052565bb71a11223e3d649c7a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/dma-buf/dma-buf.o: in function `dma_buf_mmap': drivers/dma-buf/dma-buf.c:1166: undefined reference to `vma_set_file' >> arm-linux-gnueabi-ld: drivers/dma-buf/dma-buf.c:1172: undefined reference to `vma_set_file' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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