From: Eric Biggers <ebiggers@xxxxxxxxxx>
fscrypt_require_key() is now only used by files in fs/crypto/. So
reduce its visibility to fscrypt_private.h. This is also a prerequsite
for unexporting fscrypt_get_encryption_info().
Reviewed-by: Andreas Dilger <adilger@xxxxxxxxx>
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
fs/crypto/fscrypt_private.h | 26 ++++++++++++++++++++++++++
include/linux/fscrypt.h | 26 --------------------------
2 files changed, 26 insertions(+), 26 deletions(-)
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index a61d4dbf0a0b0..16dd55080127a 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -571,6 +571,32 @@ int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
void fscrypt_hash_inode_number(struct fscrypt_info *ci,
const struct fscrypt_master_key *mk);
+/**
+ * fscrypt_require_key() - require an inode's encryption key
+ * @inode: the inode we need the key for
+ *
+ * If the inode is encrypted, set up its encryption key if not already done.
+ * Then require that the key be present and return -ENOKEY otherwise.
+ *
+ * No locks are needed, and the key will live as long as the struct inode --- so
+ * it won't go away from under you.
+ *
+ * Return: 0 on success, -ENOKEY if the key is missing, or another -errno code
+ * if a problem occurred while setting up the encryption key.
+ */
+static inline int fscrypt_require_key(struct inode *inode)
+{
+ if (IS_ENCRYPTED(inode)) {
+ int err = fscrypt_get_encryption_info(inode);
+
+ if (err)
+ return err;
+ if (!fscrypt_has_encryption_key(inode))
+ return -ENOKEY;
+ }
+ return 0;
+}
+
/* keysetup_v1.c */
void fscrypt_put_direct_key(struct fscrypt_direct_key *dk);
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index b20900bb829fc..a07610f279266 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -688,32 +688,6 @@ static inline bool fscrypt_has_encryption_key(const struct inode *inode)
return fscrypt_get_info(inode) != NULL;
}
-/**
- * fscrypt_require_key() - require an inode's encryption key
- * @inode: the inode we need the key for
- *
- * If the inode is encrypted, set up its encryption key if not already done.
- * Then require that the key be present and return -ENOKEY otherwise.
- *
- * No locks are needed, and the key will live as long as the struct inode --- so
- * it won't go away from under you.
- *
- * Return: 0 on success, -ENOKEY if the key is missing, or another -errno code
- * if a problem occurred while setting up the encryption key.
- */
-static inline int fscrypt_require_key(struct inode *inode)
-{
- if (IS_ENCRYPTED(inode)) {
- int err = fscrypt_get_encryption_info(inode);
-
- if (err)
- return err;
- if (!fscrypt_has_encryption_key(inode))
- return -ENOKEY;
- }
- return 0;
-}
-
/**
* fscrypt_prepare_link() - prepare to link an inode into a possibly-encrypted
* directory
--
2.29.2
