fscrypt: drop unused inode argument from fscrypt_fname_alloc_buffer

Signed-off-by: NJeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/20200810142139.487631-1-jlayton@kernel.orgSigned-off-by: NEric Biggers <ebiggers@google.com>

fs/crypto/fname.c

@@ -260,8 +260,6 @@ bool fscrypt_fname_encrypted_size(const struct inode *inode, u32 orig_len,
 
 /**
  * fscrypt_fname_alloc_buffer() - allocate a buffer for presented filenames
- * @inode: inode of the parent directory (for regular filenames)
- *	   or of the symlink (for symlink targets)
  * @max_encrypted_len: maximum length of encrypted filenames the buffer will be
  *		       used to present
  * @crypto_str: (output) buffer to allocate
@@ -271,8 +269,7 @@ bool fscrypt_fname_encrypted_size(const struct inode *inode, u32 orig_len,
  *
  * Return: 0 on success, -errno on failure
  */
-int fscrypt_fname_alloc_buffer(const struct inode *inode,
-			       u32 max_encrypted_len,
+int fscrypt_fname_alloc_buffer(u32 max_encrypted_len,
 			       struct fscrypt_str *crypto_str)
 {
 	const u32 max_encoded_len = BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX);

fs/crypto/hooks.c

@@ -319,7 +319,7 @@ const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
 	if (cstr.len + sizeof(*sd) - 1 > max_size)
 		return ERR_PTR(-EUCLEAN);
 
-	err = fscrypt_fname_alloc_buffer(inode, cstr.len, &pstr);
+	err = fscrypt_fname_alloc_buffer(cstr.len, &pstr);
 	if (err)
 		return ERR_PTR(err);
 

fs/ext4/dir.c

@@ -148,7 +148,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
 	}
 
 	if (IS_ENCRYPTED(inode)) {
-		err = fscrypt_fname_alloc_buffer(inode, EXT4_NAME_LEN, &fstr);
+		err = fscrypt_fname_alloc_buffer(EXT4_NAME_LEN, &fstr);
 		if (err < 0)
 			return err;
 	}

fs/ext4/namei.c

@@ -663,8 +663,7 @@ static struct stats dx_show_leaf(struct inode *dir,
 
 					/* Directory is encrypted */
 					res = fscrypt_fname_alloc_buffer(
-						dir, len,
-						&fname_crypto_str);
+						len, &fname_crypto_str);
 					if (res)
 						printk(KERN_WARNING "Error "
 							"allocating crypto "
@@ -1016,8 +1015,8 @@ static int htree_dirblock_to_tree(struct file *dir_file,
 			brelse(bh);
 			return err;
 		}
-		err = fscrypt_fname_alloc_buffer(dir, EXT4_NAME_LEN,
-						     &fname_crypto_str);
+		err = fscrypt_fname_alloc_buffer(EXT4_NAME_LEN,
+						 &fname_crypto_str);
 		if (err < 0) {
 			brelse(bh);
 			return err;

fs/f2fs/dir.c

@@ -1032,7 +1032,7 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
 		if (err)
 			goto out;
 
-		err = fscrypt_fname_alloc_buffer(inode, F2FS_NAME_LEN, &fstr);
+		err = fscrypt_fname_alloc_buffer(F2FS_NAME_LEN, &fstr);
 		if (err < 0)
 			goto out;
 	}

fs/ubifs/dir.c

@@ -515,7 +515,7 @@ static int ubifs_readdir(struct file *file, struct dir_context *ctx)
 		if (err)
 			return err;
 
-		err = fscrypt_fname_alloc_buffer(dir, UBIFS_MAX_NLEN, &fstr);
+		err = fscrypt_fname_alloc_buffer(UBIFS_MAX_NLEN, &fstr);
 		if (err)
 			return err;
 

include/linux/fscrypt.h

@@ -197,7 +197,7 @@ static inline void fscrypt_free_filename(struct fscrypt_name *fname)
 	kfree(fname->crypto_buf.name);
 }
 
-int fscrypt_fname_alloc_buffer(const struct inode *inode, u32 max_encrypted_len,
+int fscrypt_fname_alloc_buffer(u32 max_encrypted_len,
 			       struct fscrypt_str *crypto_str);
 void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str);
 int fscrypt_fname_disk_to_usr(const struct inode *inode,
@@ -428,8 +428,7 @@ static inline void fscrypt_free_filename(struct fscrypt_name *fname)
 	return;
 }
 
-static inline int fscrypt_fname_alloc_buffer(const struct inode *inode,
-					     u32 max_encrypted_len,
+static inline int fscrypt_fname_alloc_buffer(u32 max_encrypted_len,
 					     struct fscrypt_str *crypto_str)
 {
 	return -EOPNOTSUPP;