Hi Christoph, I love your patch! Yet something to improve: [auto build test ERROR on char-misc/char-misc-testing] [also build test ERROR on powerpc/next linus/master v5.12-rc2 next-20210309] [cannot apply to hnaz-linux-mm/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Christoph-Hellwig/fs-rename-allo... base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 080951f99de1e483a9a48f34c079b634f2912a54 config: riscv-randconfig-r034-20210309 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 820f508b08d7c94b2dd7847e9710d2bc36d3dd45) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/338f8e6b8568b85e6ab8a125ab242cac3... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Christoph-Hellwig/fs-rename-alloc_anon_inode-to-alloc_anon_inode_sb/20210310-005356 git checkout 338f8e6b8568b85e6ab8a125ab242cac37ed3ad8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang 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 >>): EXPORT_SYMBOL(alloc_anon_inode); ^~~~~~~~~~~~~~~~ alloc_anon_inode_sb include/linux/export.h:158:44: note: expanded from macro 'EXPORT_SYMBOL' #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") ^ include/linux/export.h:155:50: note: expanded from macro '_EXPORT_SYMBOL' #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") ^ include/linux/export.h:147:56: note: expanded from macro '__EXPORT_SYMBOL' #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) ^ include/linux/export.h:98:16: note: expanded from macro '___EXPORT_SYMBOL' extern typeof(sym) sym; \ ^ fs/libfs.c:1219:15: note: 'alloc_anon_inode_sb' declared here struct inode *alloc_anon_inode_sb(struct super_block *s) ^ 1 error generated. vim +1246 fs/libfs.c 6987843ff7e836 Al Viro 2013-10-02 1218 338f8e6b8568b8 Christoph Hellwig 2021-03-09 1219 struct inode *alloc_anon_inode_sb(struct super_block *s) 6987843ff7e836 Al Viro 2013-10-02 1220 { 6987843ff7e836 Al Viro 2013-10-02 1221 static const struct address_space_operations anon_aops = { 6987843ff7e836 Al Viro 2013-10-02 1222 .set_page_dirty = anon_set_page_dirty, 6987843ff7e836 Al Viro 2013-10-02 1223 }; 6987843ff7e836 Al Viro 2013-10-02 1224 struct inode *inode = new_inode_pseudo(s); 6987843ff7e836 Al Viro 2013-10-02 1225 6987843ff7e836 Al Viro 2013-10-02 1226 if (!inode) 6987843ff7e836 Al Viro 2013-10-02 1227 return ERR_PTR(-ENOMEM); 6987843ff7e836 Al Viro 2013-10-02 1228 6987843ff7e836 Al Viro 2013-10-02 1229 inode->i_ino = get_next_ino(); 6987843ff7e836 Al Viro 2013-10-02 1230 inode->i_mapping->a_ops = &anon_aops; 6987843ff7e836 Al Viro 2013-10-02 1231 6987843ff7e836 Al Viro 2013-10-02 1232 /* 6987843ff7e836 Al Viro 2013-10-02 1233 * Mark the inode dirty from the very beginning, 6987843ff7e836 Al Viro 2013-10-02 1234 * that way it will never be moved to the dirty 6987843ff7e836 Al Viro 2013-10-02 1235 * list because mark_inode_dirty() will think 6987843ff7e836 Al Viro 2013-10-02 1236 * that it already _is_ on the dirty list. 6987843ff7e836 Al Viro 2013-10-02 1237 */ 6987843ff7e836 Al Viro 2013-10-02 1238 inode->i_state = I_DIRTY; 6987843ff7e836 Al Viro 2013-10-02 1239 inode->i_mode = S_IRUSR | S_IWUSR; 6987843ff7e836 Al Viro 2013-10-02 1240 inode->i_uid = current_fsuid(); 6987843ff7e836 Al Viro 2013-10-02 1241 inode->i_gid = current_fsgid(); 6987843ff7e836 Al Viro 2013-10-02 1242 inode->i_flags |= S_PRIVATE; 078cd8279e6599 Deepa Dinamani 2016-09-14 1243 inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode); 6987843ff7e836 Al Viro 2013-10-02 1244 return inode; 6987843ff7e836 Al Viro 2013-10-02 1245 } 6987843ff7e836 Al Viro 2013-10-02 @1246 EXPORT_SYMBOL(alloc_anon_inode); 1c994a0909a556 Jeff Layton 2014-08-27 1247 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org