net: add qemu_purge_queued_packets()

If net client sends packets asynchronously, it needs to purge its queued
packets in cleanup() so as to prevent sent callbacks being invoked with
a freed client.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/net.h b/net.h
index 3fbfdba4fd..484b000851 100644
--- a/net.h
+++ b/net.h
@@ -70,6 +70,7 @@ ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
                                int size, NetPacketSent *sent_cb);
+void qemu_purge_queued_packets(VLANClientState *vc);
 void qemu_flush_queued_packets(VLANClientState *vc);
 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
 void qemu_check_nic_model(NICInfo *nd, const char *model);