[kbuild-all] fs/proc/root.c:285:59: error: use of undeclared identifier 'FS_GENERATED_CONTENT'

tree: https://github.com/0day-ci/linux/commits/UPDATE-20210219-010723/Nicolas-B... head: 872462f4281828b3f94d2ace0975617c8ec214ff commit: 95215d8d7fb43cc40d506a62853afc9eb82ffad6 proc: Add FS_GENERATED_CONTENT to filesystem flags date: 13 hours ago config: powerpc-randconfig-r032-20210219 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/0day-ci/linux/commit/95215d8d7fb43cc40d506a62853afc9eb... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20210219-010723/Nicolas-Boichat/Add-generated-flag-to-filesystem-struct-to-block-copy_file_range/20210212-124814 git checkout 95215d8d7fb43cc40d506a62853afc9eb82ffad6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 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 >>): .fs_flags = FS_USERNS_MOUNT | FS_DISALLOW_NOTIFY_PERM | FS_GENERATED_CONTENT, ^ 1 error generated. vim +/FS_GENERATED_CONTENT +285 fs/proc/root.c 279 280 static struct file_system_type proc_fs_type = { 281 .name = "proc", 282 .init_fs_context = proc_init_fs_context, 283 .parameters = proc_fs_parameters, 284 .kill_sb = proc_kill_sb, 286 }; 287 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org