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-rw-r--r--hw/net/net_tx_pkt.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/net/net_tx_pkt.c b/hw/net/net_tx_pkt.c
index cb606cc84b..efe80b1a80 100644
--- a/hw/net/net_tx_pkt.c
+++ b/hw/net/net_tx_pkt.c
@@ -796,11 +796,13 @@ bool net_tx_pkt_send_custom(struct NetTxPkt *pkt, bool offload,
 {
     assert(pkt);
 
+    uint8_t gso_type = pkt->virt_hdr.gso_type & ~VIRTIO_NET_HDR_GSO_ECN;
+
     /*
      * Since underlying infrastructure does not support IP datagrams longer
      * than 64K we should drop such packets and don't even try to send
      */
-    if (VIRTIO_NET_HDR_GSO_NONE != pkt->virt_hdr.gso_type) {
+    if (VIRTIO_NET_HDR_GSO_NONE != gso_type) {
         if (pkt->payload_len >
             ETH_MAX_IP_DGRAM_LEN -
             pkt->vec[NET_TX_PKT_L3HDR_FRAG].iov_len) {
@@ -808,7 +810,7 @@ bool net_tx_pkt_send_custom(struct NetTxPkt *pkt, bool offload,
         }
     }
 
-    if (offload || pkt->virt_hdr.gso_type == VIRTIO_NET_HDR_GSO_NONE) {
+    if (offload || gso_type == VIRTIO_NET_HDR_GSO_NONE) {
         if (!offload && pkt->virt_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {
             net_tx_pkt_do_sw_csum(pkt, &pkt->vec[NET_TX_PKT_L2HDR_FRAG],
                                   pkt->payload_frags + NET_TX_PKT_PL_START_FRAG - 1,