Hi Eli,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20200715]

url:    
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200716-155039
base:    ca0e494af5edb59002665bf12871e94b4163a257
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

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

All warnings (new ones prefixed by >>):

   include/linux/mlx5/device.h:56:43: note: in expansion of macro 
'__mlx5_bit_sz'
      56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
         |                                           ^~~~~~~~~~~~~
   include/linux/mlx5/device.h:58:60: note: in expansion of macro 
'__mlx5_dw_bit_off'
      58 | #define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << 
__mlx5_dw_bit_off(typ, fld))
         |                                                            
^~~~~~~~~~~~~~~~~
   include/linux/mlx5/device.h:78:10: note: in expansion of macro 
'__mlx5_dw_mask'
      78 |        (~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
         |          ^~~~~~~~~~~~~~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
     194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
         |  ^~~~~~~~
   include/linux/compiler_types.h:135:35: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
     135 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
         |                                   ^~~~~~~~~~~~~~~~~~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
     115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
         |                                                      ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
      94 | #define cpu_to_be32 __cpu_to_be32
         |                     ^~~~~~~~~~~~~
   include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
      17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
         |                                ^~~~~~~~~~~~~~~~~~~
   include/linux/mlx5/device.h:51:35: note: in expansion of macro 'offsetof'
      51 | #define __mlx5_bit_off(typ, fld) (offsetof(struct 
mlx5_ifc_##typ##_bits, fld))
         |                                   ^~~~~~~~
   include/linux/mlx5/device.h:56:70: note: in expansion of macro 
'__mlx5_bit_off'
      56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
         |                                                                      
^~~~~~~~~~~~~~
   include/linux/mlx5/device.h:58:60: note: in expansion of macro 
'__mlx5_dw_bit_off'
      58 | #define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << 
__mlx5_dw_bit_off(typ, fld))
         |                                                            
^~~~~~~~~~~~~~~~~
   include/linux/mlx5/device.h:78:10: note: in expansion of macro 
'__mlx5_dw_mask'
      78 |        (~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
         |          ^~~~~~~~~~~~~~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
     194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
         |  ^~~~~~~~
   include/linux/mlx5/device.h:50:57: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
      50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
         |                                                         ^~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
     115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
         |                                                      ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
      94 | #define cpu_to_be32 __cpu_to_be32
         |                     ^~~~~~~~~~~~~
   include/linux/mlx5/device.h:57:47: note: in expansion of macro 
'__mlx5_bit_sz'
      57 | #define __mlx5_mask(typ, fld) ((u32)((1ull << __mlx5_bit_sz(typ, 
fld)) - 1))
         |                                               ^~~~~~~~~~~~~
   include/linux/mlx5/device.h:78:48: note: in expansion of macro '__mlx5_mask'
      78 |        (~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
         |                                                ^~~~~~~~~~~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
     194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
         |  ^~~~~~~~
   include/linux/mlx5/device.h:50:57: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
      50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
         |                                                         ^~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
     115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
         |                                                      ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
      94 | #define cpu_to_be32 __cpu_to_be32
         |                     ^~~~~~~~~~~~~
   include/linux/mlx5/device.h:56:43: note: in expansion of macro 
'__mlx5_bit_sz'
      56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
         |                                           ^~~~~~~~~~~~~
   include/linux/mlx5/device.h:79:11: note: in expansion of macro 
'__mlx5_dw_bit_off'
      79 |        << __mlx5_dw_bit_off(typ, fld))); \
         |           ^~~~~~~~~~~~~~~~~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
     194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
         |  ^~~~~~~~
   include/linux/compiler_types.h:135:35: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
     135 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
         |                                   ^~~~~~~~~~~~~~~~~~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
     115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
         |                                                      ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
      94 | #define cpu_to_be32 __cpu_to_be32
         |                     ^~~~~~~~~~~~~
   include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
      17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
         |                                ^~~~~~~~~~~~~~~~~~~
   include/linux/mlx5/device.h:51:35: note: in expansion of macro 'offsetof'
      51 | #define __mlx5_bit_off(typ, fld) (offsetof(struct 
mlx5_ifc_##typ##_bits, fld))
         |                                   ^~~~~~~~
   include/linux/mlx5/device.h:56:70: note: in expansion of macro 
'__mlx5_bit_off'
      56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
         |                                                                      
^~~~~~~~~~~~~~
   include/linux/mlx5/device.h:79:11: note: in expansion of macro 
'__mlx5_dw_bit_off'
      79 |        << __mlx5_dw_bit_off(typ, fld))); \
         |           ^~~~~~~~~~~~~~~~~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
     194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
         |  ^~~~~~~~
   drivers/vdpa/mlx5/core/mr.c: At top level:
>> drivers/vdpa/mlx5/core/mr.c:414:5: warning: no previous prototype for 
>> 'mlx5_vdpa_create_mr' [-Wmissing-prototypes]
     414 | int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, struct 
vhost_iotlb *iotlb)
         |     ^~~~~~~~~~~~~~~~~~~
>> drivers/vdpa/mlx5/core/mr.c:425:6: warning: no previous prototype for 
>> 'mlx5_vdpa_destroy_mr' [-Wmissing-prototypes]
     425 | void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev)
         |      ^~~~~~~~~~~~~~~~~~~~

vim +/mlx5_vdpa_create_mr +414 drivers/vdpa/mlx5/core/mr.c

   413  
 > 414  int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb 
 > *iotlb)
   415  {
   416          struct mlx5_vdpa_mr *mr = &mvdev->mr;
   417          int err;
   418  
   419          mutex_lock(&mr->mkey_mtx);
   420          err = _mlx5_vdpa_create_mr(mvdev, iotlb);
   421          mutex_unlock(&mr->mkey_mtx);
   422          return err;
   423  }
   424  
 > 425  void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev)
   426  {
   427          struct mlx5_vdpa_mr *mr = &mvdev->mr;
   428          struct mlx5_vdpa_direct_mr *dmr;
   429          struct mlx5_vdpa_direct_mr *n;
   430  
   431          mutex_lock(&mr->mkey_mtx);
   432          if (!mr->initialized)
   433                  goto out;
   434  
   435          destroy_indirect_key(mvdev, mr);
   436          list_for_each_entry_safe_reverse(dmr, n, &mr->head, list) {
   437                  list_del_init(&dmr->list);
   438                  unmap_direct_mr(mvdev, dmr);
   439                  kfree(dmr);
   440          }
   441          memset(mr, 0, sizeof(*mr));
   442          mr->initialized = false;
   443  out:
   444          mutex_unlock(&mr->mkey_mtx);
   445  }
   446  

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

Attachment: .config.gz
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