Hello Damien Le Moal, The patch 5bba4a0d475a: "fs: New zonefs file system" from Dec 25, 2019, leads to the following static checker warning: fs/zonefs/super.c:218 zonefs_inode_setattr() error: should you be using S_ISDIR() fs/zonefs/super.c 208 static int zonefs_inode_setattr(struct dentry *dentry, struct iattr *iattr) 209 { 210 struct inode *inode = d_inode(dentry); 211 int ret; 212 213 ret = setattr_prepare(dentry, iattr); 214 if (ret) 215 return ret; 216 217 /* Files and sub-directories cannot be created or deleted */ 218 if ((iattr->ia_valid & ATTR_MODE) && (inode->i_mode & S_IFDIR) && ^^^^^^^^^^^^^^^^^^^^^^^ TBH, I don't know what the rules are with these. 219 (iattr->ia_mode & 0222)) 220 return -EPERM; 221 222 if (((iattr->ia_valid & ATTR_UID) && 223 !uid_eq(iattr->ia_uid, inode->i_uid)) || 224 ((iattr->ia_valid & ATTR_GID) && 225 !gid_eq(iattr->ia_gid, inode->i_gid))) { 226 ret = dquot_transfer(inode, iattr); regards, dan carpenter