ERROR: modpost: "__pt_no_sw_bit" [drivers/iommu/generic_pt/fmt/iommu_amdv1.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b927546677c876e26eba308550207c2ddf812a43
commit: efa03dab7ce4ed786b131f412440e2fd45fba11f iommupt: Flush the CPU cache after any writes to the page table
date:   7 weeks ago
config: powerpc64-randconfig-r051-20251223 (https://download.01.org/0day-ci/archive/20251223/202512230720.9y9DtWIo-lkp@xxxxxxxxx/config)
compiler: powerpc64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230720.9y9DtWIo-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512230720.9y9DtWIo-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__pt_no_sw_bit" [drivers/iommu/generic_pt/fmt/iommu_amdv1.ko] undefined!

-- 
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https://github.com/intel/lkp-tests/wiki