Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 11 Jun 2021 03:54:51 BST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  Fixed calculation error of pkt->header_size in fill_pkt_tcp_info()
  Add the function of colo_compare_cleanup
  Add a function named packet_new_nocopy for COLO.
  Remove migrate_set_block_enabled in checkpoint
  Optimize the function of filter_send
  Fix the qemu crash when guest shutdown during checkpoint
  Remove some duplicate trace code.
  netdev: add more commands to preconfig mode
  vhost-vdpa: remove the unused vhost_vdpa_get_acked_features()
  vhost-vdpa: don't initialize backend_features
  vhost-vdpa: map virtqueue notification area if possible
  vhost-vdpa: skip ram device from the IOTLB mapping

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 17 insertions, 8 deletions

diff --git a/net/colo.c b/net/colo.c
index ef00609848..3a3e6e89a0 100644
--- a/net/colo.c
+++ b/net/colo.c
@@ -157,19 +157,28 @@ void connection_destroy(void *opaque)
 
 Packet *packet_new(const void *data, int size, int vnet_hdr_len)
 {
-    Packet *pkt = g_slice_new(Packet);
+    Packet *pkt = g_slice_new0(Packet);
 
     pkt->data = g_memdup(data, size);
     pkt->size = size;
     pkt->creation_ms = qemu_clock_get_ms(QEMU_CLOCK_HOST);
     pkt->vnet_hdr_len = vnet_hdr_len;
-    pkt->tcp_seq = 0;
-    pkt->tcp_ack = 0;
-    pkt->seq_end = 0;
-    pkt->header_size = 0;
-    pkt->payload_size = 0;
-    pkt->offset = 0;
-    pkt->flags = 0;
+
+    return pkt;
+}
+
+/*
+ * packet_new_nocopy will not copy data, so the caller can't release
+ * the data. And it will be released in packet_destroy.
+ */
+Packet *packet_new_nocopy(void *data, int size, int vnet_hdr_len)
+{
+    Packet *pkt = g_slice_new0(Packet);
+
+    pkt->data = data;
+    pkt->size = size;
+    pkt->creation_ms = qemu_clock_get_ms(QEMU_CLOCK_HOST);
+    pkt->vnet_hdr_len = vnet_hdr_len;
 
     return pkt;
 }