Commit 1074b879 authored by Jason Wang's avatar Jason Wang
Browse files

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: 16dbaf90 ("tap: support enabling or disabling a queue")
Reported-by: default avatarAndrew Baumann <Andrew.Baumann@microsoft.com>
Tested-by: default avatarAndrew Baumann <Andrew.Baumann@microsoft.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
parent ddc2c3a5

hw/net/virtio-net.c

+4 −0
Original line number Diff line number Diff line
@@ -510,6 +510,10 @@ static int peer_attach(VirtIONet *n, int index) 
        return 0;

    }



    if (n->max_queues == 1) {

        return 0;

    }



    return tap_enable(nc->peer);

}