Commit e53fbd11 authored Oct 15, 2014 by Michael S. Tsirkin Committed by Rusty Russell Oct 15, 2014

virtio_net: enable VQs early on restore



virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after restore returns, virtio net violated this
rule by using receive VQs within restore.

To fix, call virtio_device_ready before using VQs.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

parent 401bbdc9

drivers/net/virtio_net.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1912,6 +1912,8 @@ static int virtnet_restore(struct virtio_device *vdev)
		if (err)
		return err;

		virtio_device_ready(vdev);

		if (netif_running(vi->dev)) {
		for (i = 0; i < vi->curr_queue_pairs; i++)
		if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))

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