Re: [PATCH v13 01/13] vfio: VFIO_IOMMU_SET_PASID_TABLE

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Hi Eric,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v5.12-rc6]
[also build test ERROR on next-20210409]
[cannot apply to vfio/next]
[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/Eric-Auger/SMMUv3-Nested-Stage-Setup-VFIO-part/20210411-195216
base:    e49d033bddf5b565044e2abe4241353959bc9120
config: i386-randconfig-s001-20210411 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-279-g6d5d9b42-dirty
        # https://github.com/0day-ci/linux/commit/0af9db19db29eb2a707b9e1ca4ff9e1a08a1c511
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Eric-Auger/SMMUv3-Nested-Stage-Setup-VFIO-part/20210411-195216
        git checkout 0af9db19db29eb2a707b9e1ca4ff9e1a08a1c511
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   In file included from include/linux/vfio.h:16,
                    from drivers/vfio/vfio.c:32:
>> include/uapi/linux/vfio.h:1226:34: error: field 'config' has incomplete type
    1226 |  struct iommu_pasid_table_config config; /* used on SET */
         |                                  ^~~~~~
--
   In file included from include/linux/vfio.h:16,
                    from drivers/vfio/vfio_iommu_type1.c:37:
>> include/uapi/linux/vfio.h:1226:34: error: field 'config' has incomplete type
    1226 |  struct iommu_pasid_table_config config; /* used on SET */
         |                                  ^~~~~~
   drivers/vfio/vfio_iommu_type1.c: In function 'vfio_detach_pasid_table':
>> drivers/vfio/vfio_iommu_type1.c:2844:3: error: implicit declaration of function 'iommu_detach_pasid_table'; did you mean 'vfio_detach_pasid_table'? [-Werror=implicit-function-declaration]
    2844 |   iommu_detach_pasid_table(d->domain);
         |   ^~~~~~~~~~~~~~~~~~~~~~~~
         |   vfio_detach_pasid_table
   drivers/vfio/vfio_iommu_type1.c: In function 'vfio_attach_pasid_table':
>> drivers/vfio/vfio_iommu_type1.c:2858:9: error: implicit declaration of function 'iommu_uapi_attach_pasid_table'; did you mean 'vfio_attach_pasid_table'? [-Werror=implicit-function-declaration]
    2858 |   ret = iommu_uapi_attach_pasid_table(d->domain, (void __user *)arg);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |         vfio_attach_pasid_table
   cc1: some warnings being treated as errors


vim +/config +1226 include/uapi/linux/vfio.h

  1211	
  1212	/*
  1213	 * VFIO_IOMMU_SET_PASID_TABLE - _IOWR(VFIO_TYPE, VFIO_BASE + 18,
  1214	 *			struct vfio_iommu_type1_set_pasid_table)
  1215	 *
  1216	 * The SET operation passes a PASID table to the host while the
  1217	 * UNSET operation detaches the one currently programmed. It is
  1218	 * allowed to "SET" the table several times without unsetting as
  1219	 * long as the table config does not stay IOMMU_PASID_CONFIG_TRANSLATE.
  1220	 */
  1221	struct vfio_iommu_type1_set_pasid_table {
  1222		__u32	argsz;
  1223		__u32	flags;
  1224	#define VFIO_PASID_TABLE_FLAG_SET	(1 << 0)
  1225	#define VFIO_PASID_TABLE_FLAG_UNSET	(1 << 1)
> 1226		struct iommu_pasid_table_config config; /* used on SET */
  1227	};
  1228	

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

Attachment: .config.gz
Description: application/gzip

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