[kbuild-all] [zen-kernel-zen-kernel:5.9/fixes 2/3] ERROR: modpost: "init_ipc_ns" undefined!

tree: https://github.com/zen-kernel/zen-kernel 5.9/fixes head: 2846f858f97969c044d947eb84864e94c2767056 commit: 30296a6a6401bac916ed1716761292ee4896cf7d [2/3] android: Enable building ashmem and binder as modules config: riscv-allmodconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 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/zen-kernel/zen-kernel/commit/30296a6a6401bac916ed17167... git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel git fetch --no-tags zen-kernel-zen-kernel 5.9/fixes git checkout 30296a6a6401bac916ed1716761292ee4896cf7d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 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 >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org