[linux-next:master 6921/7963] drivers/vfio/vfio.o: warning: objtool: vfio_assign_device_set()+0x12a: unreachable instruction

[linux-next:master 6921/7963] drivers/vfio/vfio.o: warning: objtool: vfio_assign_device_set()+0x12a: unreachable instruction

[kernel test robot]

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CC: Linux Memory Management List <linux-mm@kvack.org>
TO: Jason Gunthorpe <jgg@nvidia.com>
CC: Alex Williamson <alex.williamson@redhat.com>
CC: Yishai Hadas <yishaih@nvidia.com>
CC: Cornelia Huck <cohuck@redhat.com>
CC: Christoph Hellwig <hch@lst.de>

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/commit/?id=2fd585f4ed9de9b9259e95affdd7d8cde06b48c3
        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@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/vfio/vfio.o: warning: objtool: vfio_assign_device_set()+0x12a: unreachable instruction

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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