[kbuild-all] [luxis1999-iommufd:iommufd-v5.16-rc3 31/33] ld.lld: error: undefined symbol: interval_tree_span_iter_first

tree: https://github.com/luxis1999/iommufd iommufd-v5.16-rc3 head: 44f89b130eec28760e6b655facd4be49c5bcc3f9 commit: 74814fdbefe2fb370111a0ce00641c64376447cb [31/33] vfio/pci: Add bind_iommufd() support config: arm64-randconfig-r014-20211210 (https://download.01.org/0day-ci/archive/20211211/202112110730.YDz5VfLg-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/luxis1999/iommufd/commit/74814fdbefe2fb370111a0ce00641... git remote add luxis1999-iommufd https://github.com/luxis1999/iommufd git fetch --no-tags luxis1999-iommufd iommufd-v5.16-rc3 git checkout 74814fdbefe2fb370111a0ce00641c64376447cb # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): -- -- -- -- -- Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for IOMMUFD Depends on IOMMU_SUPPORT Selected by - VFIO_PCI_CORE && VFIO && PCI && MMU --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org