[oracle-dtrace:v2/5.17-rc2 8/10] <stdin>:1565:2: warning: #warning syscall waitfd not implemented

[oracle-dtrace:v2/5.17-rc2 8/10] <stdin>:1565:2: warning: #warning syscall waitfd not implemented

[kernel test robot]

tree:   https://github.com/oracle/dtrace-linux-kernel v2/5.17-rc2
head:   28b391e36df8679828aedd18dae0ee5526512d4d
commit: 83f02cf9b0ce18b6a27d34c6a25933791779e807 [8/10] waitfd: new syscall implementing waitpid() over fds
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20220203/202202030843.Dam4hL3o-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 11.2.0
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://github.com/oracle/dtrace-linux-kernel/commit/83f02cf9b0ce18b6a27d34c6a25933791779e807
        git remote add oracle-dtrace https://github.com/oracle/dtrace-linux-kernel
        git fetch --no-tags oracle-dtrace v2/5.17-rc2
        git checkout 83f02cf9b0ce18b6a27d34c6a25933791779e807
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 prepare

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 >>):

>> <stdin>:1565:2: warning: #warning syscall waitfd not implemented [-Wcpp]
--
>> <stdin>:1565:2: warning: #warning syscall waitfd not implemented [-Wcpp]
--
   scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
   scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
>> <stdin>:1565:2: warning: #warning syscall waitfd not implemented [-Wcpp]

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