tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 468c1d50222ce9439c9835e00ab55ae9ced389fb commit: bc66f68057662bbe9d3057f6896a646f3e0d1e9a [10745/12279] NFS: Support statx_get and statx_set ioctls config: arm-mps2_defconfig (https://download.01.org/0day-ci/archive/20220114/202201142050.B1BDDw1x-lk...) compiler: arm-linux-gnueabi-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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout bc66f68057662bbe9d3057f6896a646f3e0d1e9a # 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=arm 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 >>): arm-linux-gnueabi-ld: fs/nfs/nfs4file.o: in function `nfs4_ioctl_file_statx_get': arm-linux-gnueabi-ld: fs/nfs/nfs4file.o: in function `nfs_get_timespec64.constprop.0': nfs4file.c:(.text+0x8ac): undefined reference to `__get_user_bad' arm-linux-gnueabi-ld: fs/nfs/nfs4file.o: in function `nfs4_ioctl_file_statx_set': nfs4file.c:(.text+0x9a0): undefined reference to `__get_user_bad' arm-linux-gnueabi-ld: nfs4file.c:(.text+0x9bc): undefined reference to `__get_user_bad' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org