netvsc: mark error cases as unlikely

Mark if() statements used for error handling only as unlikely()

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 652453d..caf89a2 100644 (file)
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -855,14 +855,14 @@ int netvsc_send(struct hv_device *device,
        bool xmit_more = (skb != NULL) ? skb->xmit_more : false;
 
        net_device = get_outbound_net_device(device);
-       if (!net_device)
+       if (unlikely(!net_device))
                return -ENODEV;
 
        /* We may race with netvsc_connect_vsp()/netvsc_init_buf() and get
         * here before the negotiation with the host is finished and
         * send_section_map may not be allocated yet.
         */
-       if (!net_device->send_section_map)
+       if (unlikely(!net_device->send_section_map))
                return -EAGAIN;
 
        nvchan = &net_device->chan_table[packet->q_idx];