[kbuild-all] [chrome-os:chromeos-5.4 36/43] drivers/virtio/virtio_dma_buf.c:undefined reference to `dma_buf_export'

tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4 head: 38987d8c2c1d38c1be93aaa52e8808b04fa10d96 commit: b2af0e6da9a5acff7db01db16899c180bf3105d9 [36/43] FROMGIT: virtio: add dma-buf support for exported objects config: mips-randconfig-c004-20200911 (attached as .config) compiler: mipsel-linux-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 git checkout b2af0e6da9a5acff7db01db16899c180bf3105d9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): mipsel-linux-ld: drivers/virtio/virtio_dma_buf.o: in function `virtio_dma_buf_export': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org