Limit allocation of crypto mechanisms to dialect which requires

Updated patch to try to prevent allocation of cifs, smb2 or smb3 crypto
secmech structures unless needed.  Currently cifs allocates all crypto
mechanisms when the first session is established (4 functions and
4 contexts), rather than only allocating these when needed (smb3 needs
two, the rest of the dialects only need one).

Acked-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index afcb8a1a33b7..fa68813396b5 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2108,12 +2108,6 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
                 goto out_err;
         }
 
-        rc = cifs_crypto_shash_allocate(tcp_ses);
-        if (rc) {
-                cifs_dbg(VFS, "could not setup hash structures rc %d\n", rc);
-                goto out_err;
-        }
-
         tcp_ses->ops = volume_info->ops;
         tcp_ses->vals = volume_info->vals;
         cifs_set_net_ns(tcp_ses, get_net(current->nsproxy->net_ns));