From e53fbd11e983e896adaabef2d2f1695d6e0af829 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 15 Oct 2014 10:22:32 +1030 Subject: [PATCH] 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 Reviewed-by: Cornelia Huck Signed-off-by: Rusty Russell --- drivers/net/virtio_net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 53031e58a5fc..4e0cbbcd60a7 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -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)) -- 2.20.1