tap: Remove qemu_using_vnet_hdr()

Since qemu_set_vnet_hdr_len() is always called when
qemu_using_vnet_hdr() is called, we can merge them and save some code.

For consistency, express that the virtio-net header is not in use by
returning 0 with qemu_get_vnet_hdr_len() instead of having a dedicated
function, qemu_get_using_vnet_hdr().

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/hw/net/net_tx_pkt.c b/hw/net/net_tx_pkt.c
index b7b1de816d..1f79b82b77 100644
--- a/hw/net/net_tx_pkt.c
+++ b/hw/net/net_tx_pkt.c
@@ -582,7 +582,7 @@ static void net_tx_pkt_sendv(
 {
     NetClientState *nc = opaque;
 
-    if (qemu_get_using_vnet_hdr(nc->peer)) {
+    if (qemu_get_vnet_hdr_len(nc->peer)) {
         qemu_sendv_packet(nc, virt_iov, virt_iov_cnt);
     } else {
         qemu_sendv_packet(nc, iov, iov_cnt);
@@ -812,7 +812,7 @@ static bool net_tx_pkt_do_sw_fragmentation(struct NetTxPkt *pkt,
 
 bool net_tx_pkt_send(struct NetTxPkt *pkt, NetClientState *nc)
 {
-    bool offload = qemu_get_using_vnet_hdr(nc->peer);
+    bool offload = qemu_get_vnet_hdr_len(nc->peer);
     return net_tx_pkt_send_custom(pkt, offload, net_tx_pkt_sendv, nc);
 }