diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2006-09-22 15:22:58 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-09-22 15:22:58 -0700 |
| commit | a8bfca024326560d86c6323b0504288ca55a75fc (patch) | |
| tree | cc3bae75628c57b8f70a0ed66beee62201557bad | |
| parent | 507c33504686e733a14ef0b2dc9db0c20fae4653 (diff) | |
IPoIB: Add some likely/unlikely annotations in hot path
Signed-off-by: Eli Cohen <eli@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ib.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 240befdf90d..f426a69d9a4 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -332,7 +332,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_tx_buf *tx_req; dma_addr_t addr; - if (skb->len > dev->mtu + INFINIBAND_ALEN) { + if (unlikely(skb->len > dev->mtu + INFINIBAND_ALEN)) { ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n", skb->len, dev->mtu + INFINIBAND_ALEN); ++priv->stats.tx_dropped; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 867d6274205..1eaf00e9862 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -620,7 +620,7 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) struct ipoib_neigh *neigh; unsigned long flags; - if (!spin_trylock_irqsave(&priv->tx_lock, flags)) + if (unlikely(!spin_trylock_irqsave(&priv->tx_lock, flags))) return NETDEV_TX_LOCKED; /* @@ -633,7 +633,7 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_BUSY; } - if (skb->dst && skb->dst->neighbour) { + if (likely(skb->dst && skb->dst->neighbour)) { if (unlikely(!*to_ipoib_neigh(skb->dst->neighbour))) { ipoib_path_lookup(skb, dev); goto out; |