1 files changed, 52 insertions, 1 deletions
diff --git a/include/linux/ecryptfs.h b/include/linux/ecryptfs.h
index 33d35ea4f937..489b99e37128 100644
--- a/include/linux/ecryptfs.h
+++ b/include/linux/ecryptfs.h
@@ -130,7 +130,7 @@ struct ecryptfs_events {
 	size_t (*get_salt_key_size_cb)(const void *ecrytpfs_data);
 };
 
-
+#ifdef CONFIG_ECRYPT_FS
 int ecryptfs_register_to_events(const struct ecryptfs_events *ops);
 
 int ecryptfs_unregister_from_events(int user_handle);
@@ -151,4 +151,55 @@ bool ecryptfs_is_page_in_metadata(const void *ecrytpfs_data, pgoff_t offset);
 bool ecryptfs_is_data_equal(const void *ecrytpfs_data1,
 		const void *ecrytpfs_data2);
 
+#else
+static inline int ecryptfs_register_to_events(
+	const struct ecryptfs_events *ops)
+{
+	return 1; /* dummy handle */
+}
+
+static int ecryptfs_unregister_from_events(int user_handle)
+{
+	return 0;
+}
+
+static inline const unsigned char *ecryptfs_get_key(const void *ecrytpfs_data)
+{
+	return NULL;
+}
+
+static inline size_t ecryptfs_get_key_size(const void *ecrytpfs_data)
+{
+	return 0;
+}
+
+static inline const unsigned char *ecryptfs_get_salt(const void *ecrytpfs_data)
+{
+	return NULL;
+}
+
+static inline size_t ecryptfs_get_salt_size(const void *ecrytpfs_data)
+{
+	return 0;
+}
+
+static inline bool ecryptfs_cipher_match(const void *ecrytpfs_data,
+		const unsigned char *cipher, size_t cipher_size)
+{
+	return false;
+}
+
+bool ecryptfs_is_page_in_metadata(const void *ecrytpfs_data, pgoff_t offset)
+{
+	return false;
+}
+
+bool ecryptfs_is_data_equal(const void *ecrytpfs_data1,
+		const void *ecrytpfs_data2)
+{
+	return false;
+}
+
+#endif /* CONFIG_ECRYPT_FS */
+
 #endif /* _LINUX_ECRYPTFS_H */