tree: https://github.com/luxis1999/iommufd iommufd-v5.16-rc3 head: 44f89b130eec28760e6b655facd4be49c5bcc3f9 commit: 219a6860a2c8c2c89d71793ce4f9375f3e7bb61f [32/33] vfio/pci: Add VFIO_DEVICE_ATTACH_IOASPT config: hexagon-randconfig-r011-20211210 (https://download.01.org/0day-ci/archive/20211211/202112110116.DbhBjj3j-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 # https://github.com/luxis1999/iommufd/commit/219a6860a2c8c2c89d71793ce4f93... git remote add luxis1999-iommufd https://github.com/luxis1999/iommufd git fetch --no-tags luxis1999-iommufd iommufd-v5.16-rc3 git checkout 219a6860a2c8c2c89d71793ce4f9375f3e7bb61f # 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=hexagon SHELL=/bin/bash drivers/vfio/ 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 >>): In file included from drivers/vfio/vfio.c:35: { ^ 1 error generated. vim +30 include/linux/iommufd.h 8a81aeff73cead Jason Gunthorpe 2021-11-11 26 8a81aeff73cead Jason Gunthorpe 2021-11-11 27 #else /* !CONFIG_IOMMUFD */ 8a81aeff73cead Jason Gunthorpe 2021-11-11 28 static inline struct iommufd_device * 8a81aeff73cead Jason Gunthorpe 2021-11-11 29 iommufd_bind_pci_device(int fd, struct pci_dev *pdev, u32 *id, u64 dev_cookie); 8a81aeff73cead Jason Gunthorpe 2021-11-11 @30 { 8a81aeff73cead Jason Gunthorpe 2021-11-11 31 return ERR_PTR(-EOPNOTSUPP); 8a81aeff73cead Jason Gunthorpe 2021-11-11 32 } 8a81aeff73cead Jason Gunthorpe 2021-11-11 33 :::::: The code at line 30 was first introduced by commit :::::: 8a81aeff73cead826a9b7d26e9af4f09c9fd700f iommufd: Add kAPI toward external drivers :::::: TO: Jason Gunthorpe <jgg(a)nvidia.com&gt; :::::: CC: Liu Yi L <yi.l.liu(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org