Hi,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on rdma/for-next]
[also build test ERROR on linus/master v5.12-rc3 next-20210319]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/kaike-wan-intel-com/A-rendezvous-module/20210319-210005
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next
config: i386-randconfig-s002-20210318 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-277-gc089cd2d-dirty
        # https://github.com/0day-ci/linux/commit/96b4d25534a5c1ebaab65a35fd9cd242613cd6d1
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review kaike-wan-intel-com/A-rendezvous-module/20210319-210005
        git checkout 96b4d25534a5c1ebaab65a35fd9cd242613cd6d1
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from <command-line>:32:
>> ./usr/include/rdma/rv_user_ioctls.h:117:2: error: unknown type name 'size_t'
     117 |  size_t ulen;
         |  ^~~~~~
>> ./usr/include/rdma/rv_user_ioctls.h:535:4: error: unknown type name 'uint64_t'
     535 |    uint64_t pad2[7];
         |    ^~~~~~~~

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