File 0004-vhost-crypto-fix-incorrect-write-back-source.patch of Package dpdk.19290
From 03aa702205544346d11ed7ca5693f9382ef51922 Mon Sep 17 00:00:00 2001
From: Fan Zhang <roy.fan.zhang@intel.com>
Date: Wed, 15 Apr 2020 11:48:52 +0100
Subject: [PATCH 4/6] vhost/crypto: fix incorrect write back source
This patch fixes vhost crypto library for the incorrect source and
destination buffer calculation in the copy mode.
Fixes: cd1e8f03abf0 ("vhost/crypto: fix packet copy in chaining mode")
Cc: stable@dpdk.org
Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Chenbo Xia <chenbo.xia@intel.com>
---
lib/librte_vhost/vhost_crypto.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/librte_vhost/vhost_crypto.c b/lib/librte_vhost/vhost_crypto.c
index 494f49084..f1cc32a9b 100644
--- a/lib/librte_vhost/vhost_crypto.c
+++ b/lib/librte_vhost/vhost_crypto.c
@@ -749,14 +749,14 @@ prepare_write_back_data(struct vhost_crypto_data_req *vc_req,
wb_data->src = src + offset;
dlen = desc->len;
dst = IOVA_TO_VVA(uint8_t *, vc_req, desc->addr,
- &dlen, VHOST_ACCESS_RW) + offset;
+ &dlen, VHOST_ACCESS_RW);
if (unlikely(!dst || dlen != desc->len)) {
VC_LOG_ERR("Failed to map descriptor");
goto error_exit;
}
- wb_data->dst = dst;
- wb_data->len = RTE_MIN(desc->len - offset, write_back_len);
+ wb_data->dst = dst + offset;
+ wb_data->len = RTE_MIN(dlen - offset, write_back_len);
write_back_len -= wb_data->len;
src += offset + wb_data->len;
offset = 0;
@@ -801,7 +801,7 @@ prepare_write_back_data(struct vhost_crypto_data_req *vc_req,
goto error_exit;
}
- wb_data->src = src;
+ wb_data->src = src + offset;
wb_data->dst = dst;
wb_data->len = RTE_MIN(desc->len - offset, write_back_len);
write_back_len -= wb_data->len;
--
2.26.2