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    Subjectriscv64-linux-ld: ttm_bo_vm.c:undefined reference to `vmf_insert_pfn_prot'
    tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
    head: 4b35035bcf80ddb47c0112c4fbd84a63a2836a18
    commit: 8bb31587820a6e04cb613b49238b1800d1a97223 drm/ttm: remove bo->moving
    date: 2 months ago
    config: riscv-buildonly-randconfig-r006-20220619 (https://download.01.org/0day-ci/archive/20220619/202206190651.smtms3Ay-lkp@intel.com/config)
    compiler: riscv64-linux-gcc (GCC) 11.3.0
    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=8bb31587820a6e04cb613b49238b1800d1a97223
    git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
    git fetch --no-tags linus master
    git checkout 8bb31587820a6e04cb613b49238b1800d1a97223
    # save the config file
    mkdir build_dir && cp config build_dir/.config
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=riscv 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 >>):

    riscv64-linux-ld: riscv64-linux-ld: DWARF error: could not find abbrev number 3991
    drivers/gpu/drm/ttm/ttm_bo_vm.o: in function `.L0 ':
    ttm_bo_vm.c:(.text+0x656): undefined reference to `vmf_insert_pfn_prot'
    >> riscv64-linux-ld: ttm_bo_vm.c:(.text+0x7ce): undefined reference to `vmf_insert_pfn_prot'

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

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

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