1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Squashfs - a compressed read only filesystem for Linux
4 *
5 * Copyright (c) 2010
6 * Phillip Lougher <phillip@squashfs.org.uk>
7 *
8 * xattr.h
9 */
10
11#ifdef CONFIG_SQUASHFS_XATTR
12extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,
13		u64 *, unsigned int *);
14extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *,
15		unsigned int *, unsigned long long *);
16#else
17static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb,
18		u64 start, u64 *xattr_table_start, unsigned int *xattr_ids)
19{
20	struct squashfs_xattr_id_table *id_table;
21
22	id_table = squashfs_read_table(sb, start, sizeof(*id_table));
23	if (IS_ERR(id_table))
24		return (__le64 *) id_table;
25
26	*xattr_table_start = le64_to_cpu(id_table->xattr_table_start);
27	kfree(id_table);
28
29	ERROR("Xattrs in filesystem, these will be ignored\n");
30	return ERR_PTR(-ENOTSUPP);
31}
32
33static inline int squashfs_xattr_lookup(struct super_block *sb,
34		unsigned int index, int *count, unsigned int *size,
35		unsigned long long *xattr)
36{
37	return 0;
38}
39#define squashfs_listxattr NULL
40#define squashfs_xattr_handlers NULL
41#endif
42