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SubjectRe: [PATCH v10 01/11] vfio: VFIO_IOMMU_SET_PASID_TABLE
Hi Eric,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on vfio/next]
[also build test ERROR on v5.6-rc6 next-20200320]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Eric-Auger/SMMUv3-Nested-Stage-Setup-VFIO-part/20200321-040935
base: https://github.com/awilliam/linux-vfio.git next
config: arm64-randconfig-a001-20200321 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=9.2.0 make.cross ARCH=arm64

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

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:811:34: error: field 'config' has incomplete type
811 | 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:35:
>> include/uapi/linux/vfio.h:811:34: error: field 'config' has incomplete type
811 | 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:2204:3: error: implicit declaration of function 'iommu_detach_pasid_table'; did you mean 'vfio_detach_pasid_table'? [-Werror=implicit-function-declaration]
2204 | 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:2219:9: error: implicit declaration of function 'iommu_attach_pasid_table'; did you mean 'vfio_attach_pasid_table'? [-Werror=implicit-function-declaration]
2219 | ret = iommu_attach_pasid_table(d->domain, &ustruct->config);
| ^~~~~~~~~~~~~~~~~~~~~~~~
| vfio_attach_pasid_table
cc1: some warnings being treated as errors

vim +/config +811 include/uapi/linux/vfio.h

797
798 /**
799 * VFIO_IOMMU_SET_PASID_TABLE - _IOWR(VFIO_TYPE, VFIO_BASE + 22,
800 * struct vfio_iommu_type1_set_pasid_table)
801 *
802 * The SET operation passes a PASID table to the host while the
803 * UNSET operation detaches the one currently programmed. Setting
804 * a table while another is already programmed replaces the old table.
805 */
806 struct vfio_iommu_type1_set_pasid_table {
807 __u32 argsz;
808 __u32 flags;
809 #define VFIO_PASID_TABLE_FLAG_SET (1 << 0)
810 #define VFIO_PASID_TABLE_FLAG_UNSET (1 << 1)
> 811 struct iommu_pasid_table_config config; /* used on SET */
812 };
813

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