[CIFS] Only dump SPNEGO key if CONFIG_CIFS_DEBUG2 is set

The SPNEGO key data is not terribly interesting except in certain
debugging situations. Only dump it to the ring buffer if needed.

Signed-off-by: Jeff Layton <jlayton@tupile.poochiereds.net>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 1529d2b12e9c..d543accc10dd 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -122,11 +122,13 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
         cFYI(1, ("key description = %s", description));
         spnego_key = request_key(&cifs_spnego_key_type, description, "");
 
+#ifdef CONFIG_CIFS_DEBUG2
         if (cifsFYI && !IS_ERR(spnego_key)) {
                 struct cifs_spnego_msg *msg = spnego_key->payload.data;
-                cifs_dump_mem("SPNEGO reply blob:", msg->data,
-                                msg->secblob_len + msg->sesskey_len);
+                cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024,
+                                msg->secblob_len + msg->sesskey_len));
         }
+#endif /* CONFIG_CIFS_DEBUG2 */
 
 out:
         kfree(description);