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authorHawkins Jiawei <yin31149@gmail.com>2023-07-23 20:09:11 +0800
committerMichael S. Tsirkin <mst@redhat.com>2023-10-04 04:54:07 -0400
commit06b636a1e2ad12ab130edcbb0ccf995118440706 (patch)
treee82fe9d4a9b6ced2df672bf5d320500329fe8ef4 /hw/net/virtio-net.c
parentf92a2d61cd86fd585b1b2a57295fcde278aebd78 (diff)
downloadfocaccia-qemu-06b636a1e2ad12ab130edcbb0ccf995118440706.tar.gz
focaccia-qemu-06b636a1e2ad12ab130edcbb0ccf995118440706.zip
virtio-net: do not reset vlan filtering at set_features
This function is called after virtio_load, so all vlan configuration is
lost in migration case.

Just allow all the vlan-tagged packets if vlan is not configured, and
trust device reset to clear all filtered vlans.

Fixes: 0b1eaa8803 ("virtio-net: Do not filter VLANs without F_CTRL_VLAN")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Hawkins Jiawei <yin31149@gmail.com>
Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
Message-Id: <95af0d013281282f48ad3f47f6ad1ac4ca9e52eb.1690106284.git.yin31149@gmail.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/net/virtio-net.c')
-rw-r--r--hw/net/virtio-net.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 5a0201c423..1c31374334 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -1029,9 +1029,7 @@ static void virtio_net_set_features(VirtIODevice *vdev, uint64_t features)
         vhost_net_save_acked_features(nc->peer);
     }
 
-    if (virtio_has_feature(features, VIRTIO_NET_F_CTRL_VLAN)) {
-        memset(n->vlans, 0, MAX_VLAN >> 3);
-    } else {
+    if (!virtio_has_feature(features, VIRTIO_NET_F_CTRL_VLAN)) {
         memset(n->vlans, 0xff, MAX_VLAN >> 3);
     }