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SubjectERROR: modpost: "vmf_insert_pfn_prot" [drivers/gpu/drm/ttm/ttm.ko] undefined!
Hi Javier,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a335366bad1364a07f49df9da1fdfa6d411a5f39
commit: a0f25a6bb319aa05e04dcf51707c97c2881b4f47 drm/hisilicon/hibmc: Allow to be built if COMPILE_TEST is enabled
date: 8 months ago
config: m68k-randconfig-r016-20220918 (https://download.01.org/0day-ci/archive/20220918/202209181951.Wdmac1wt-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0f25a6bb319aa05e04dcf51707c97c2881b4f47
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout a0f25a6bb319aa05e04dcf51707c97c2881b4f47
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash

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

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

>> ERROR: modpost: "vmf_insert_pfn_prot" [drivers/gpu/drm/ttm/ttm.ko] undefined!

Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for DRM_TTM
Depends on [n]: HAS_IOMEM [=y] && DRM [=m] && MMU [=n]
Selected by [m]:
- DRM_TTM_HELPER [=m] && HAS_IOMEM [=y] && DRM [=m]
- DRM_HISI_HIBMC [=m] && HAS_IOMEM [=y] && DRM [=m] && PCI [=y] && (ARM64 || COMPILE_TEST [=y])

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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