--- drivers/net/virtio_net.c

+++ drivers/net/virtio_net.c

@@ -398,8 +398,7 @@ static void refill_work(struct work_stru

vi = container_of(work, struct virtnet_info, refill.work);

napi_disable(&vi->napi);

- try_fill_recv(vi, GFP_KERNEL);

- still_empty = (vi->num == 0);

+ still_empty = !try_fill_recv(vi, GFP_KERNEL);

napi_enable(&vi->napi);

/* In theory, this can happen: if we don't get any buffers in