From 4baf1e33d0842c9673fef4af207d4b74da8d0126 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 15 Oct 2014 10:22:30 +1030 Subject: [PATCH] virtio_net: enable VQs early virtio spec requires drivers to set DRIVER_OK before using VQs. This is set automatically after probe returns, virtio net violated this rule by using receive VQs within probe. 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 ef04d23..aba7b93 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1792,6 +1792,8 @@ static int virtnet_probe(struct virtio_device *vdev) goto free_vqs; } + virtio_device_ready(vdev); + /* Last of all, set up some receive buffers. */ for (i = 0; i < vi->curr_queue_pairs; i++) { try_fill_recv(&vi->rq[i], GFP_KERNEL); -- 2.7.4