ofproto: Avoid buffer copy in OFPT_PACKET_IN path.

[sliver-openvswitch.git] / lib / dpif-netdev.c

diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index 7d31a69..2f4463e 100644 (file)
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -1280,7 +1280,8 @@ dp_netdev_output_control(struct dp_netdev *dp, const struct ofpbuf *packet,
     }
 
     msg_size = sizeof *header + packet->size;
-    msg = ofpbuf_new(msg_size);
+    msg = ofpbuf_new(msg_size + DPIF_RECV_MSG_PADDING);
+    ofpbuf_reserve(msg, DPIF_RECV_MSG_PADDING);
     header = ofpbuf_put_uninit(msg, sizeof *header);
     header->type = queue_no;
     header->length = msg_size;