vhost/crypto: fix descriptor move

This patch fixes the redundant descriptor move in the copy mode
of vhost crypto. Originally the redundant descriptor move will
cause the message parsing error.

Fixes: 3bb595ecd682 ("vhost/crypto: add request handler")

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/lib/librte_vhost/vhost_crypto.c b/lib/librte_vhost/vhost_crypto.c
index 04ff8cd..4c25628 100644 (file)
--- a/lib/librte_vhost/vhost_crypto.c
+++ b/lib/librte_vhost/vhost_crypto.c
@@ -853,11 +853,6 @@ prepare_sym_chain_op(struct vhost_crypto *vcrypto, struct rte_crypto_op *op,
                op->sym->auth.digest.data = digest_addr;
                op->sym->auth.digest.phys_addr = rte_pktmbuf_iova_offset(m_dst,
                                digest_offset);
-               if (unlikely(move_desc(head, &desc,
-                               chain->para.hash_result_len) < 0)) {
-                       ret = VIRTIO_CRYPTO_ERR;
-                       goto error_exit;
-               }
                break;
        default:
                ret = VIRTIO_CRYPTO_BADMSG;