otherwise it maybe lead to out of bound access in tx_q
Signed-off-by: Li RongQing <lirongq...@baidu.com>
---
lib/netdev-dpdk.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index c06f46931..e6cdcd454 100644
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -2319,8 +2319,6 @@ __netdev_dpdk_vhost_send(struct netdev *netdev, int qid,
int i, retries = 0;
int vid = netdev_dpdk_get_vid(dev);
- qid = dev->tx_q[qid % netdev->n_txq].map;
-
if (OVS_UNLIKELY(vid < 0 || !dev->vhost_reconfigured || qid < 0
|| !(dev->flags & NETDEV_UP))) {
rte_spinlock_lock(&dev->stats_lock);
@@ -2329,6 +2327,8 @@ __netdev_dpdk_vhost_send(struct netdev *netdev, int qid,
goto out;
}
+ qid = dev->tx_q[qid % netdev->n_txq].map;
+
rte_spinlock_lock(&dev->tx_q[qid].tx_lock);
cnt = netdev_dpdk_filter_packet_len(dev, cur_pkts, cnt);
--
2.16.2
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