Hi NeilBrown, kernel test robot noticed the following build errors: [auto build test ERROR on brauner-vfs/vfs.all] [also build test ERROR on trondmy-nfs/linux-next driver-core/driver-core-testing driver-core/driver-core-next driver-core/driver-core-linus cifs/for-next xfs-linux/for-next linus/master v6.14-rc2 next-20250214] [cannot apply to ericvh-v9fs/for-next tyhicks-ecryptfs/next] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/NeilBrown/nfs-change-mkdir-inode_operation-to-return-alternate-dentry-if-needed/20250214-141741 base: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all patch link: https://lore.kernel.org/r/20250214052204.3105610-4-neilb%40suse.de patch subject: [PATCH 3/3] VFS: Change vfs_mkdir() to return the dentry. config: x86_64-buildonly-randconfig-001-20250215 (https://download.01.org/0day-ci/archive/20250215/202502151124.LyMTodTU-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250215/202502151124.LyMTodTU-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502151124.LyMTodTU-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): fs/smb/server/vfs.c: In function 'ksmbd_vfs_mkdir': >> fs/smb/server/vfs.c:226:9: error: 'entry' undeclared (first use in this function); did you mean 'dentry'? 226 | entry = vfs_mkdir(idmap, d_inode(path.dentry), dentry, mode); | ^~~~~ | dentry fs/smb/server/vfs.c:226:9: note: each undeclared identifier is reported only once for each function it appears in vim +226 fs/smb/server/vfs.c 196 197 /** 198 * ksmbd_vfs_mkdir() - vfs helper for smb create directory 199 * @work: work 200 * @name: directory name that is relative to share 201 * @mode: directory create mode 202 * 203 * Return: 0 on success, otherwise error 204 */ 205 int ksmbd_vfs_mkdir(struct ksmbd_work *work, const char *name, umode_t mode) 206 { 207 struct mnt_idmap *idmap; 208 struct path path; 209 struct dentry *dentry, *d; 210 int err; 211 212 dentry = ksmbd_vfs_kern_path_create(work, name, 213 LOOKUP_NO_SYMLINKS | LOOKUP_DIRECTORY, 214 &path); 215 if (IS_ERR(dentry)) { 216 err = PTR_ERR(dentry); 217 if (err != -EEXIST) 218 ksmbd_debug(VFS, "path create failed for %s, err %d\n", 219 name, err); 220 return err; 221 } 222 223 idmap = mnt_idmap(path.mnt); 224 mode |= S_IFDIR; 225 d = dentry; > 226 entry = vfs_mkdir(idmap, d_inode(path.dentry), dentry, mode); 227 err = PTR_ERR_OR_ZERO(dentry); 228 if (!err && dentry != d) 229 ksmbd_vfs_inherit_owner(work, d_inode(path.dentry), d_inode(d)); 230 231 done_path_create(&path, dentry); 232 if (err) 233 pr_err("mkdir(%s): creation failed (err:%d)\n", name, err); 234 return err; 235 } 236 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki