linux-kernel - ERROR: modpost: "__pt_no_sw_bit" [drivers/iommu/generic_pt/fmt/iommu

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Message-ID: <202512230720.9y9DtWIo-lkp@intel.com>
Date: Tue, 23 Dec 2025 07:25:22 +0800
From: kernel test robot <lkp@...el.com>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
 Joerg Roedel <joerg.roedel@....com>, Kevin Tian <kevin.tian@...el.com>
Subject: ERROR: modpost: "__pt_no_sw_bit"
 [drivers/iommu/generic_pt/fmt/iommu_amdv1.ko] undefined!

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@intel.com/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@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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512230720.9y9DtWIo-lkp@intel.com/

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!

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki