From: Fan Zhang <roy.fan.zhang@intel.com>
Date: Wed, 9 May 2018 14:08:39 +0000 (+0100)
Subject: vhost/crypto: fix descriptor move
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=2017bc33561af8e9880f077cef541ea947a06de0;p=dpdk.git

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 04ff8cd489..4c256284e8 100644
--- 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;