Hi Heng,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Heng-Qi/virtio-net-initially-change-the-value-of-tx-frames/20230811-150529
base:   net-next/main
patch link:    https://lore.kernel.org/r/20230811065512.22190-7-hengqi%40linux.alibaba.com
patch subject: [PATCH net-next 6/8] virtio-net: support rx netdim
config: microblaze-randconfig-r081-20230814 (https://download.01.org/0day-ci/archive/20230814/202308142100.l4cN4g6z-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230814/202308142100.l4cN4g6z-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot [off-list ref]
| Closes: https://lore.kernel.org/oe-kbuild-all/202308142100.l4cN4g6z-lkp@intel.com/ (local)

All errors (new ones prefixed by >>):

   microblaze-linux-ld: drivers/net/virtio_net.o: in function `virtnet_rx_dim_work':

quoted

drivers/net/virtio_net.c:3269: undefined reference to `net_dim_get_rx_moderation'

   microblaze-linux-ld: drivers/net/virtio_net.o: in function `virtnet_rx_dim_update':

quoted

drivers/net/virtio_net.c:1985: undefined reference to `net_dim'

vim +3269 drivers/net/virtio_net.c

  3258	
  3259	static void virtnet_rx_dim_work(struct work_struct *work)
  3260	{
  3261		struct dim *dim = container_of(work, struct dim, work);
  3262		struct receive_queue *rq = container_of(dim,
  3263				struct receive_queue, dim);
  3264		struct virtnet_info *vi = rq->vq->vdev->priv;
  3265		struct net_device *dev = vi->dev;
  3266		struct dim_cq_moder update_moder;
  3267		int qnum = rq - vi->rq, err;
  3268	

3269		update_moder = net_dim_get_rx_moderation(dim->mode, dim->profile_ix);

  3270		err = virtnet_send_rx_notf_coal_vq_cmd(vi, qnum,
  3271						       update_moder.usec,
  3272						       update_moder.pkts);
  3273		if (err)
  3274			pr_debug("%s: Failed to send dim parameters on rxq%d\n",
  3275				 dev->name, (int)(rq - vi->rq));
  3276	
  3277		dim->state = DIM_START_MEASURE;
  3278	}
  3279	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki