From a8bfca024326560d86c6323b0504288ca55a75fc Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Fri, 22 Sep 2006 15:22:58 -0700 Subject: IPoIB: Add some likely/unlikely annotations in hot path Signed-off-by: Eli Cohen Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_ib.c | 2 +- drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') 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; -- cgit v1.2.3