net: fix qemu_announce_self not emitting packets

commit fefe2a78 accidently dropped the code path for injecting
raw packets. This feature is needed for sending gratuitous ARPs
after an incoming migration has completed. The result is increased
network downtime for vservers where the network card is not virtio-net
with the VIRTIO_NET_F_GUEST_ANNOUNCE feature.

Fixes: fefe2a78abde932e0f340b21bded2c86def1d242
Cc: qemu-stable@nongnu.org
Cc: hongyang.yang@easystack.cn
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit ca1ee3d6b546e841a1b9db413eb8fa09f13a061b)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

diff --git a/net/net.c b/net/net.c
index 0ad6217cb9456cbedb29c47da6fb1c80d6d15519..6b0b375018bc6e485fef926eef589f227c6edaf0 100644 (file)
--- a/net/net.c
+++ b/net/net.c
@@ -724,7 +724,7 @@ ssize_t qemu_deliver_packet_iov(NetClientState *sender,
         return 0;
     }
 
-    if (nc->info->receive_iov) {
+    if (nc->info->receive_iov && !(flags & QEMU_NET_PACKET_FLAG_RAW)) {
         ret = nc->info->receive_iov(nc, iov, iovcnt);
     } else {
         ret = nc_sendv_compat(nc, iov, iovcnt, flags);