[dpdk-dev] [PATCH 1/2] virtio: make sure rcv mbuf initialized correctly

[Stephen Hemminger]

The virtio driver was not initializing all the fields in
the receive mbuf. This would cause bugs where previous usage
of mbuf would leave stale TCI and offload flags.

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
 drivers/net/virtio/virtio_rxtx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 5770fa2..466fee6 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -611,6 +611,8 @@ virtio_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 
 		rxm->port = rxvq->port_id;
 		rxm->data_off = RTE_PKTMBUF_HEADROOM;
+		rxm->ol_flags = 0;
+		rxm->vlan_tci = 0;
 
 		rxm->nb_segs = 1;
 		rxm->next = NULL;
@@ -731,6 +733,8 @@ virtio_recv_mergeable_pkts(void *rx_queue,
 		rxm->data_off = RTE_PKTMBUF_HEADROOM;
 		rxm->nb_segs = seg_num;
 		rxm->next = NULL;
+		rxm->ol_flags = 0;
+		rxm->vlan_tci = 0;
 		rxm->pkt_len = (uint32_t)(len[0] - hdr_size);
 		rxm->data_len = (uint16_t)(len[0] - hdr_size);
 
-- 
2.1.4