[song-md:md-next 25/29] drivers/md/raid1-10.c:117:25: error: casting from randomized structure pointer type 'struct block_device *' to 'struct md_rdev *'

[kernel test robot <lkp@xxxxxxxxx>]

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git md-next
head:   460af1f9d9e62acce4a21f9bd00b5bcd5963bcd4
commit: 8295efbe68c080047e98d9c0eb5cb933b238a8cb [25/29] md/raid1-10: factor out a helper to submit normal write
config: arm-randconfig-r026-20230612 (https://download.01.org/0day-ci/archive/20230614/202306142042.fmjfmTF8-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://git.kernel.org/pub/scm/linux/kernel/git/song/md.git/commit/?id=8295efbe68c080047e98d9c0eb5cb933b238a8cb
        git remote add song-md git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git
        git fetch --no-tags song-md md-next
        git checkout 8295efbe68c080047e98d9c0eb5cb933b238a8cb
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306142042.fmjfmTF8-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from drivers/md/raid10.c:80:
>> drivers/md/raid1-10.c:117:25: error: casting from randomized structure pointer type 'struct block_device *' to 'struct md_rdev *'
     117 |         struct md_rdev *rdev = (struct md_rdev *)bio->bi_bdev;
         |                                ^
   1 error generated.


vim +117 drivers/md/raid1-10.c

   113	
   114	
   115	static inline void raid1_submit_write(struct bio *bio)
   116	{
 > 117		struct md_rdev *rdev = (struct md_rdev *)bio->bi_bdev;
   118	
   119		bio->bi_next = NULL;
   120		bio_set_dev(bio, rdev->bdev);
   121		if (test_bit(Faulty, &rdev->flags))
   122			bio_io_error(bio);
   123		else if (unlikely(bio_op(bio) ==  REQ_OP_DISCARD &&
   124				  !bdev_max_discard_sectors(bio->bi_bdev)))
   125			/* Just ignore it */
   126			bio_endio(bio);
   127		else
   128			submit_bio_noacct(bio);
   129	}
   130	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki