From 358e2bfe2e1a65b1e926163d7d1ffaefd601d874 Mon Sep 17 00:00:00 2001
From: Julia Suvorova <jusual@redhat.com>
Date: Wed, 19 Feb 2020 21:34:31 +0000
Subject: [PATCH] virtio-net: delete also control queue when TX/RX deleted

RH-Author: Julia Suvorova <jusual@redhat.com>
Message-id: <20200219213431.11913-5-jusual@redhat.com>
Patchwork-id: 93983
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 4/4] virtio-net: delete also control queue when TX/RX deleted
Bugzilla: 1791590
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>

From: Yuri Benditovich <yuri.benditovich@daynix.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1708480
If the control queue is not deleted together with TX/RX, it
later will be ignored in freeing cache resources and hot
unplug will not be completed.

Cc: qemu-stable@nongnu.org
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Message-Id: <20191226043649.14481-3-yuri.benditovich@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit d945d9f1731244ef341f74ede93120fc9de35913)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
 hw/net/virtio-net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 6adb0fe252..63f1bae99c 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -2803,7 +2803,8 @@ static void virtio_net_device_unrealize(DeviceState *dev, Error **errp)
     for (i = 0; i < max_queues; i++) {
         virtio_net_del_queue(n, i);
     }
-
+    /* delete also control vq */
+    virtio_del_queue(vdev, max_queues * 2);
     qemu_announce_timer_del(&n->announce_timer, false);
     g_free(n->vqs);
     qemu_del_nic(n->nic);
-- 
2.27.0