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virtio-net: not enable vq reset feature unconditionally 

The commit 93a97dc520 ("virtio-net: enable vq reset feature") enables
unconditionally vq reset feature as long as the device is emulated.
This makes impossible to actually disable the feature, and it causes
migration problems from qemu version previous than 7.2.

The entire final commit is unneeded as device system already enable or
disable the feature properly.

This reverts commit 93a97dc520.
Fixes: 93a97dc520 ("virtio-net: enable vq reset feature")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>

Message-Id: <20230504101447.389398-1-eperezma@redhat.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 1fac00f70b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Eugenio Pérez 2023-05-04 12:14:47 +02:00 committed by Michael Tokarev
parent 6f4dc62715
commit dd63d3a5b8
1 changed files with 0 additions and 1 deletions
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hw/net/virtio-net.c
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@ -802,7 +802,6 @@ static uint64_t virtio_net_get_features(VirtIODevice *vdev, uint64_t features,
}
if (!get_vhost_net(nc->peer)) {
virtio_add_feature(&features, VIRTIO_F_RING_RESET);
return features;
}