Re: [PATCH] iommu/vt-d: Flush piotlb for SVM and Nested domain

[kernel test robot <lkp@intel.com>]

Hi Yi,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.18 next-20251208]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Yi-Liu/iommu-vt-d-Flush-piotlb-for-SVM-and-Nested-domain/20251208-172359
base:   linus/master
patch link:    https://lore.kernel.org/r/20251208091907.74719-1-yi.l.liu%40intel.com
patch subject: [PATCH] iommu/vt-d: Flush piotlb for SVM and Nested domain
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20251208/202512082342.IdZjYepb-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251208/202512082342.IdZjYepb-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512082342.IdZjYepb-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: vmlinux.o: in function `dmar_domain_attach_device':
>> iommu.c:(.text+0x70aa38): undefined reference to `intel_svm_domain_ops'
   ld: vmlinux.o: in function `paging_domain_compatible':
>> (.text+0x70ab8f): undefined reference to `intel_svm_domain_ops'
   ld: vmlinux.o: in function `intel_iommu_set_dev_pasid':
   iommu.c:(.text+0x70b487): undefined reference to `intel_svm_domain_ops'
   ld: vmlinux.o: in function `cache_tag_flush_iotlb':
>> cache.c:(.text+0x70e74a): undefined reference to `intel_svm_domain_ops'
   ld: vmlinux.o: in function `cache_tag_flush_range_np':
   (.text+0x70f2d3): undefined reference to `intel_svm_domain_ops'

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