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authorEric Biggers <ebiggers@google.com>2020-12-02 18:20:40 -0800
committerEric Biggers <ebiggers@google.com>2020-12-02 18:25:01 -0800
commit5b421f08801fe8247dec368b3d323958f419e769 (patch)
tree80b205ffa70f9d6c979d75b28dd26327da7df873
parentde3cdc6e75179a2324c23400b21483a1372c95e1 (diff)
fscrypt: unexport fscrypt_get_encryption_info()
Now that fscrypt_get_encryption_info() is only called from files in fs/crypto/ (due to all key setup now being handled by higher-level helper functions instead of directly by filesystems), unexport it and move its declaration to fscrypt_private.h. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/20201203022041.230976-9-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
-rw-r--r--fs/crypto/fscrypt_private.h2
-rw-r--r--fs/crypto/keysetup.c1
-rw-r--r--include/linux/fscrypt.h7
3 files changed, 3 insertions, 7 deletions
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index 16dd55080127..c1c302656c34 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -571,6 +571,8 @@ int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
void fscrypt_hash_inode_number(struct fscrypt_info *ci,
const struct fscrypt_master_key *mk);
+int fscrypt_get_encryption_info(struct inode *inode);
+
/**
* fscrypt_require_key() - require an inode's encryption key
* @inode: the inode we need the key for
diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c
index 50675b42d5b7..6339b3069a40 100644
--- a/fs/crypto/keysetup.c
+++ b/fs/crypto/keysetup.c
@@ -589,7 +589,6 @@ int fscrypt_get_encryption_info(struct inode *inode)
res = 0;
return res;
}
-EXPORT_SYMBOL(fscrypt_get_encryption_info);
/**
* fscrypt_prepare_new_inode() - prepare to create a new inode in a directory
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index a07610f27926..4b163f5e58e9 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -75,7 +75,7 @@ struct fscrypt_operations {
static inline struct fscrypt_info *fscrypt_get_info(const struct inode *inode)
{
/*
- * Pairs with the cmpxchg_release() in fscrypt_get_encryption_info().
+ * Pairs with the cmpxchg_release() in fscrypt_setup_encryption_info().
* I.e., another task may publish ->i_crypt_info concurrently, executing
* a RELEASE barrier. We need to use smp_load_acquire() here to safely
* ACQUIRE the memory the other task published.
@@ -200,7 +200,6 @@ int fscrypt_ioctl_remove_key_all_users(struct file *filp, void __user *arg);
int fscrypt_ioctl_get_key_status(struct file *filp, void __user *arg);
/* keysetup.c */
-int fscrypt_get_encryption_info(struct inode *inode);
int fscrypt_prepare_new_inode(struct inode *dir, struct inode *inode,
bool *encrypt_ret);
void fscrypt_put_encryption_info(struct inode *inode);
@@ -408,10 +407,6 @@ static inline int fscrypt_ioctl_get_key_status(struct file *filp,
}
/* keysetup.c */
-static inline int fscrypt_get_encryption_info(struct inode *inode)
-{
- return -EOPNOTSUPP;
-}
static inline int fscrypt_prepare_new_inode(struct inode *dir,
struct inode *inode,