[hch-misc:raid-stripe-tree 21/31] ./usr/include/linux/btrfs_tree.h:728:9: error: unknown type name 'u8'

[hch-misc:raid-stripe-tree 21/31] ./usr/include/linux/btrfs_tree.h:728:9: error: unknown type name 'u8'

[kernel test robot]

tree:   git://git.infradead.org/users/hch/misc.git raid-stripe-tree
head:   7f755507b2a1f921afadd2b041bc46829e2bda2b
commit: f495eb8d4ebbe88a04587f269313981704d8205e [21/31] btrfs: add raid stripe tree definitions
config: x86_64-randconfig-a002-20230531 (https://download.01.org/0day-ci/archive/20230602/202306021850.cHadr9at-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build):
        git remote add hch-misc git://git.infradead.org/users/hch/misc.git
        git fetch --no-tags hch-misc raid-stripe-tree
        git checkout f495eb8d4ebbe88a04587f269313981704d8205e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306021850.cHadr9at-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
>> ./usr/include/linux/btrfs_tree.h:728:9: error: unknown type name 'u8'
     728 |         u8 encoding;
         |         ^~
   ./usr/include/linux/btrfs_tree.h:729:9: error: unknown type name 'u8'
     729 |         u8 reserved[7];
         |         ^~

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