Hi Jason,

I love your patch! Yet something to improve:

[auto build test ERROR on vhost/linux-next]
[also build test ERROR on linus/master v5.13-rc4 next-20210601]
[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/Jason-Wang/Packed-virtqueue-state-support-for-vDPA/20210601-164715
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: alpha-allyesconfig (attached as .config)
compiler: alpha-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
        # 
https://github.com/0day-ci/linux/commit/eccc56e52d8c89dd93da5df0362931151417eb6a
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Jason-Wang/Packed-virtqueue-state-support-for-vDPA/20210601-164715
        git checkout eccc56e52d8c89dd93da5df0362931151417eb6a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=alpha 

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

All errors (new ones prefixed by >>):

   drivers/vdpa/mlx5/net/mlx5_vnet.c: In function 'mlx5_vdpa_set_vq_state':
>> drivers/vdpa/mlx5/net/mlx5_vnet.c:1430:23: error: 'const struct 
>> vdpa_vq_state' has no member named 'avail_index'
    1430 |  mvq->used_idx = state->avail_index;
         |                       ^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1431:24: error: 'const struct 
vdpa_vq_state' has no member named 'avail_index'
    1431 |  mvq->avail_idx = state->avail_index;
         |                        ^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c: In function 'mlx5_vdpa_get_vq_state':
>> drivers/vdpa/mlx5/net/mlx5_vnet.c:1452:8: error: 'struct vdpa_vq_state' has 
>> no member named 'avail_index'
    1452 |   state->avail_index = mvq->used_idx;
         |        ^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1461:7: error: 'struct vdpa_vq_state' has 
no member named 'avail_index'
    1461 |  state->avail_index = attr.used_index;
         |       ^~


vim +1430 drivers/vdpa/mlx5/net/mlx5_vnet.c

1a86b377aa2147 Eli Cohen  2020-08-04  1417  
1a86b377aa2147 Eli Cohen  2020-08-04  1418  static int 
mlx5_vdpa_set_vq_state(struct vdpa_device *vdev, u16 idx,
1a86b377aa2147 Eli Cohen  2020-08-04  1419                                const 
struct vdpa_vq_state *state)
1a86b377aa2147 Eli Cohen  2020-08-04  1420  {
1a86b377aa2147 Eli Cohen  2020-08-04  1421      struct mlx5_vdpa_dev *mvdev = 
to_mvdev(vdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1422      struct mlx5_vdpa_net *ndev = 
to_mlx5_vdpa_ndev(mvdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1423      struct mlx5_vdpa_virtqueue *mvq 
= &ndev->vqs[idx];
1a86b377aa2147 Eli Cohen  2020-08-04  1424  
1a86b377aa2147 Eli Cohen  2020-08-04  1425      if (mvq->fw_state == 
MLX5_VIRTIO_NET_Q_OBJECT_STATE_RDY) {
1a86b377aa2147 Eli Cohen  2020-08-04  1426              mlx5_vdpa_warn(mvdev, 
"can't modify available index\n");
1a86b377aa2147 Eli Cohen  2020-08-04  1427              return -EINVAL;
1a86b377aa2147 Eli Cohen  2020-08-04  1428      }
1a86b377aa2147 Eli Cohen  2020-08-04  1429  
bc04d93ea30a0a Eli Cohen  2021-04-08 @1430      mvq->used_idx = 
state->avail_index;
1a86b377aa2147 Eli Cohen  2020-08-04  1431      mvq->avail_idx = 
state->avail_index;
1a86b377aa2147 Eli Cohen  2020-08-04  1432      return 0;
1a86b377aa2147 Eli Cohen  2020-08-04  1433  }
1a86b377aa2147 Eli Cohen  2020-08-04  1434  
1a86b377aa2147 Eli Cohen  2020-08-04  1435  static int 
mlx5_vdpa_get_vq_state(struct vdpa_device *vdev, u16 idx, struct vdpa_vq_state 
*state)
1a86b377aa2147 Eli Cohen  2020-08-04  1436  {
1a86b377aa2147 Eli Cohen  2020-08-04  1437      struct mlx5_vdpa_dev *mvdev = 
to_mvdev(vdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1438      struct mlx5_vdpa_net *ndev = 
to_mlx5_vdpa_ndev(mvdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1439      struct mlx5_vdpa_virtqueue *mvq 
= &ndev->vqs[idx];
1a86b377aa2147 Eli Cohen  2020-08-04  1440      struct mlx5_virtq_attr attr;
1a86b377aa2147 Eli Cohen  2020-08-04  1441      int err;
1a86b377aa2147 Eli Cohen  2020-08-04  1442  
3176e974a750d6 Si-Wei Liu 2020-10-01  1443      /* If the virtq object was 
destroyed, use the value saved at
3176e974a750d6 Si-Wei Liu 2020-10-01  1444       * the last minute of 
suspend_vq. This caters for userspace
3176e974a750d6 Si-Wei Liu 2020-10-01  1445       * that cares about emulating 
the index after vq is stopped.
3176e974a750d6 Si-Wei Liu 2020-10-01  1446       */
3176e974a750d6 Si-Wei Liu 2020-10-01  1447      if (!mvq->initialized) {
bc04d93ea30a0a Eli Cohen  2021-04-08  1448              /* Firmware returns a 
wrong value for the available index.
bc04d93ea30a0a Eli Cohen  2021-04-08  1449               * Since both values 
should be identical, we take the value of
bc04d93ea30a0a Eli Cohen  2021-04-08  1450               * used_idx which is 
reported correctly.
bc04d93ea30a0a Eli Cohen  2021-04-08  1451               */
bc04d93ea30a0a Eli Cohen  2021-04-08 @1452              state->avail_index = 
mvq->used_idx;
3176e974a750d6 Si-Wei Liu 2020-10-01  1453              return 0;
3176e974a750d6 Si-Wei Liu 2020-10-01  1454      }
1a86b377aa2147 Eli Cohen  2020-08-04  1455  
1a86b377aa2147 Eli Cohen  2020-08-04  1456      err = query_virtqueue(ndev, 
mvq, &attr);
1a86b377aa2147 Eli Cohen  2020-08-04  1457      if (err) {
1a86b377aa2147 Eli Cohen  2020-08-04  1458              mlx5_vdpa_warn(mvdev, 
"failed to query virtqueue\n");
1a86b377aa2147 Eli Cohen  2020-08-04  1459              return err;
1a86b377aa2147 Eli Cohen  2020-08-04  1460      }
bc04d93ea30a0a Eli Cohen  2021-04-08  1461      state->avail_index = 
attr.used_index;
1a86b377aa2147 Eli Cohen  2020-08-04  1462      return 0;
1a86b377aa2147 Eli Cohen  2020-08-04  1463  }
1a86b377aa2147 Eli Cohen  2020-08-04  1464  

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

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