@@ -195,6 +195,7 @@ static void *init_ppi_data(struct rndis_message *msg, u32 ppi_size,
ppi->size = ppi_size;
ppi->type = pkt_type;
ppi->ppi_offset = sizeof(struct rndis_per_packet_info);
+ memset(ppi + 1, 0, ppi_size - sizeof(struct rndis_per_packet_info));
rndis_pkt->per_pkt_info_len += ppi_size;
@@ -461,12 +462,12 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
rndis_msg = (struct rndis_message *)skb->head;
- memset(rndis_msg, 0, RNDIS_AND_PPI_SIZE);
-
/* Add the rndis header */
rndis_msg->ndis_msg_type = RNDIS_MSG_PACKET;
rndis_msg->msg_len = packet->total_data_buflen;
+
rndis_pkt = &rndis_msg->msg.pkt;
+ memset(rndis_pkt, 0, sizeof(*rndis_pkt));
rndis_pkt->data_offset = sizeof(struct rndis_packet);
rndis_pkt->data_len = packet->total_data_buflen;
rndis_pkt->per_pkt_info_offset = sizeof(struct rndis_packet);
Only part of the headroom maybe used on typical packet. Avoid doing memset of whole area. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> --- drivers/net/hyperv/netvsc_drv.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)