CC: Linux Memory Management List <linux-mm(a)kvack.org&gt; TO: Jason Gunthorpe <jgg(a)nvidia.com&gt; CC: Alex Williamson <alex.williamson(a)redhat.com&gt; CC: Yishai Hadas <yishaih(a)nvidia.com&gt; CC: Cornelia Huck <cohuck(a)redhat.com&gt; CC: Christoph Hellwig <hch(a)lst.de&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4b358aabb93a2c654cd1dcab1a25a589f6e2b153 commit: 2fd585f4ed9de9b9259e95affdd7d8cde06b48c3 [6921/7963] vfio: Provide better generic support for open/release vfio_device_ops config: x86_64-randconfig-a012-20210814 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 62df4df41c939205b2dc0a2a3bfb75b8c1ed74fa) 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/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 2fd585f4ed9de9b9259e95affdd7d8cde06b48c3 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash block// drivers/ kernel// If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org