[xfs-linux:iomap-for-next 25/40] fs/iomap/direct-io.o: warning: objtool: __iomap_dio_rw()+0x849: unreachable instruction

[xfs-linux:iomap-for-next 25/40] fs/iomap/direct-io.o: warning: objtool: __iomap_dio_rw()+0x849: unreachable instruction

[kernel test robot]

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CC: linux-xfs(a)vger.kernel.org
TO: Christoph Hellwig <hch@lst.de>
CC: "Darrick J. Wong" <djwong@kernel.org>

tree:   https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git iomap-for-next
head:   742dd4b8c5bbf1547c3090d42be76cb92a33feb1
commit: a6d3d49587d10d23189675fce11b332a915081ff [25/40] iomap: switch __iomap_dio_rw to use iomap_iter
config: x86_64-randconfig-a016-20210818 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d2b574a4dea5b718e4386bf2e26af0126e5978ce)
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/fs/xfs/xfs-linux.git/commit/?id=a6d3d49587d10d23189675fce11b332a915081ff
        git remote add xfs-linux https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git
        git fetch --no-tags xfs-linux iomap-for-next
        git checkout a6d3d49587d10d23189675fce11b332a915081ff
        # 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 fs/

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 >>):

>> fs/iomap/direct-io.o: warning: objtool: __iomap_dio_rw()+0x849: 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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