Commit b49ae913 authored by Jason Wang's avatar Jason Wang Committed by Michael S. Tsirkin
Browse files

vhost_net: init acked_features to backend_features 



commit 2e6d46d7 (vhost: add
vhost_get_features and vhost_ack_features) removes the step that
initializes the acked_features to backend_features.

As this field is now uninitialized, vhost initialization will sometimes
fail.

To fix, initialize acked_features on each ack.

Tested-by: default avatarAndrey Korolyov <andrey@xdel.ru>
Cc: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent cd7d1d26

hw/net/vhost_net.c

+1 −0
Original line number Diff line number Diff line
@@ -115,6 +115,7 @@ unsigned vhost_net_get_features(struct vhost_net *net, unsigned features) 


void vhost_net_ack_features(struct vhost_net *net, unsigned features)

{

    net->dev.acked_features = net->dev.backend_features;

    vhost_ack_features(&net->dev, vhost_net_get_feature_bits(net), features);

}