Revert "virtio-net: add support for configure interrupt"

This reverts commit 497679d51087090d5a22fd265d1b96cf92d49d9d.

Fixes: 497679d510 ("virtio-net: add support for configure interrupt")
Cc: "Cindy Lu" <lulu@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/net/vhost_net-stub.c

@@ -101,12 +101,3 @@ int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu)
 {
     return 0;
 }
-
-bool vhost_net_config_pending(VHostNetState *net)
-{
-    return false;
-}
-
-void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask)
-{
-}

hw/net/vhost_net.c

@@ -457,15 +457,6 @@ void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
     vhost_virtqueue_mask(&net->dev, dev, idx, mask);
 }
 
-bool vhost_net_config_pending(VHostNetState *net)
-{
-    return vhost_config_pending(&net->dev);
-}
-
-void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask)
-{
-    vhost_config_mask(&net->dev, dev, mask);
-}
 VHostNetState *get_vhost_net(NetClientState *nc)
 {
     VHostNetState *vhost_net = 0;

hw/net/virtio-net.c

@@ -3169,7 +3169,7 @@ static bool virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx)
     NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx));
     assert(n->vhost_started);
     if (idx == VIRTIO_CONFIG_IRQ_IDX) {
-        return vhost_net_config_pending(get_vhost_net(nc->peer));
+        return false;
     }
     return vhost_net_virtqueue_pending(get_vhost_net(nc->peer), idx);
 }
@@ -3181,9 +3181,9 @@ static void virtio_net_guest_notifier_mask(VirtIODevice *vdev, int idx,
     NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx));
     assert(n->vhost_started);
     if (idx == VIRTIO_CONFIG_IRQ_IDX) {
-        vhost_net_config_mask(get_vhost_net(nc->peer), vdev, mask);
         return;
     }
+
     vhost_net_virtqueue_mask(get_vhost_net(nc->peer), vdev, idx, mask);
 }
 

include/net/vhost_net.h

@@ -39,8 +39,6 @@ int vhost_net_set_config(struct vhost_net *net, const uint8_t *data,
 bool vhost_net_virtqueue_pending(VHostNetState *net, int n);
 void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
                               int idx, bool mask);
-bool vhost_net_config_pending(VHostNetState *net);
-void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask);
 int vhost_net_notify_migration_done(VHostNetState *net, char* mac_addr);
 VHostNetState *get_vhost_net(NetClientState *nc);