eCryptfs: change the type of cipher_code from u16 to u8

Only the lower byte of cipher_code is ever used, so it makes sense
for its type to be u8.

Signed-off-by: Trevor Highland <trevor.highland@gmail.com>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index f458c1f35565..682b1b2482c2 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -189,7 +189,7 @@ out:
 }
 
 static int
-parse_tag_65_packet(struct ecryptfs_session_key *session_key, u16 *cipher_code,
+parse_tag_65_packet(struct ecryptfs_session_key *session_key, u8 *cipher_code,
                     struct ecryptfs_message *msg)
 {
         size_t i = 0;
@@ -275,7 +275,7 @@ out:
 
 
 static int
-write_tag_66_packet(char *signature, size_t cipher_code,
+write_tag_66_packet(char *signature, u8 cipher_code,
                     struct ecryptfs_crypt_stat *crypt_stat, char **packet,
                     size_t *packet_len)
 {
@@ -428,7 +428,7 @@ static int
 decrypt_pki_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok,
                                   struct ecryptfs_crypt_stat *crypt_stat)
 {
-        u16 cipher_code = 0;
+        u8 cipher_code = 0;
         struct ecryptfs_msg_ctx *msg_ctx;
         struct ecryptfs_message *msg = NULL;
         char *auth_tok_sig;
@@ -1537,7 +1537,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
         struct scatterlist dst_sg;
         struct scatterlist src_sg;
         struct mutex *tfm_mutex = NULL;
-        size_t cipher_code;
+        u8 cipher_code;
         size_t packet_size_length;
         size_t max_packet_size;
         struct ecryptfs_mount_crypt_stat *mount_crypt_stat =