tree: https://github.com/oracle/dtrace-linux-kernel v1/5.15 head: 0fee66d7ce96317146609675767971d0f35c3e74 commit: 0fd5e3924d69c1dc81e7c875fc9889b52c50248e [16/35] waitfd: new syscall implementing waitpid() over fds config: nios2-defconfig (attached as .config) compiler: nios2-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/0fd5e3924d69c1dc81e7... git remote add oracle-dtrace https://github.com/oracle/dtrace-linux-kernel git fetch --no-tags oracle-dtrace v1/5.15 git checkout 0fd5e3924d69c1dc81e7c875fc9889b52c50248e # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nios2 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 884 | __SYSCALL(__NR_waitfd, sys_waitfd) | ^~~~~~~~~~ arch/nios2/kernel/syscall_table.c:13:37: note: in definition of macro '__SYSCALL' 13 | #define __SYSCALL(nr, call) [nr] = (call), | ^~~~ vim +884 include/uapi/asm-generic/unistd.h 882 883 #define __NR_waitfd 473 885 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org