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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>
This commit is contained in:
stephen hemminger 2017-06-08 16:21:21 -07:00 committed by David S. Miller
parent 2d05b56097
commit 2d694d2abe
1 changed files with 2 additions and 2 deletions
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4
drivers/net/hyperv/netvsc.c
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@ -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];