hw/net: Make NetCanReceive() return a boolean

The NetCanReceive handler return whether the device can or
can not receive new packets. Make it obvious by returning
a boolean type.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 3627bb1..a46e3b3 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -1234,26 +1234,26 @@ static void virtio_net_handle_rx(VirtIODevice *vdev, VirtQueue *vq)
     qemu_flush_queued_packets(qemu_get_subqueue(n->nic, queue_index));
 }
 
-static int virtio_net_can_receive(NetClientState *nc)
+static bool virtio_net_can_receive(NetClientState *nc)
 {
     VirtIONet *n = qemu_get_nic_opaque(nc);
     VirtIODevice *vdev = VIRTIO_DEVICE(n);
     VirtIONetQueue *q = virtio_net_get_subqueue(nc);
 
     if (!vdev->vm_running) {
-        return 0;
+        return false;
     }
 
     if (nc->queue_index >= n->curr_queues) {
-        return 0;
+        return false;
     }
 
     if (!virtio_queue_ready(q->rx_vq) ||
         !(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
-        return 0;
+        return false;
     }
 
-    return 1;
+    return true;
 }
 
 static int virtio_net_has_buffers(VirtIONetQueue *q, int bufsize)