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SubjectRe: [PATCH v12 01/13] vfio: VFIO_IOMMU_SET_PASID_TABLE
Hi Eric,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v5.11]
[also build test ERROR on next-20210223]
[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/20210224-051641
base: f40ddce88593482919761f74910f42f4b84c004b
config: i386-randconfig-s001-20210223 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-229-g60c1f270-dirty
# https://github.com/0day-ci/linux/commit/3bb0b5b270edf8c80af65a89749296990f9b9213
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/20210224-051641
git checkout 3bb0b5b270edf8c80af65a89749296990f9b9213
# 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@intel.com>

All errors (new ones prefixed by >>):

In file included from include/linux/vfio.h:16,
from drivers/gpu/drm/i915/gvt/dmabuf.h:33,
from <command-line>:
>> include/uapi/linux/vfio.h:1198:34: error: field 'config' has incomplete type
1198 | struct iommu_pasid_table_config config; /* used on SET */
| ^~~~~~


vim +/config +1198 include/uapi/linux/vfio.h

1184
1185 /*
1186 * VFIO_IOMMU_SET_PASID_TABLE - _IOWR(VFIO_TYPE, VFIO_BASE + 18,
1187 * struct vfio_iommu_type1_set_pasid_table)
1188 *
1189 * The SET operation passes a PASID table to the host while the
1190 * UNSET operation detaches the one currently programmed. Setting
1191 * a table while another is already programmed replaces the old table.
1192 */
1193 struct vfio_iommu_type1_set_pasid_table {
1194 __u32 argsz;
1195 __u32 flags;
1196 #define VFIO_PASID_TABLE_FLAG_SET (1 << 0)
1197 #define VFIO_PASID_TABLE_FLAG_UNSET (1 << 1)
> 1198 struct iommu_pasid_table_config config; /* used on SET */
1199 };
1200

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