virtio-net: avoid call tap_enable when there's only one queue
We call tap_enable() even if for multiqueue is not enabled. This is
wrong since it should be used for multiqueue codes to enable a
disabled queue. Fixing this by only calling this when multiqueue is
used.
Fixes: 16dbaf905b
("tap: support enabling or disabling a queue")
Reported-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Tested-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
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@ -510,6 +510,10 @@ static int peer_attach(VirtIONet *n, int index)
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return 0;
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return 0;
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}
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}
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if (n->max_queues == 1) {
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return 0;
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}
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return tap_enable(nc->peer);
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return tap_enable(nc->peer);
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}
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}
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