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| author | Sathya Perla <sathyap@serverengines.com> | 2010-02-17 01:34:22 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-17 13:35:38 -0800 |
| commit | a058a632747dd0f1799b12f4ecd54e43f5b5f10d (patch) | |
| tree | 6a397196c62a0703756c8bd24cb1e964ba8bffac | |
| parent | aa13bd6ef4ddd81080f972220fae30eb28f65b17 (diff) | |
| download | linux-3.10-a058a632747dd0f1799b12f4ecd54e43f5b5f10d.tar.gz linux-3.10-a058a632747dd0f1799b12f4ecd54e43f5b5f10d.tar.bz2 linux-3.10-a058a632747dd0f1799b12f4ecd54e43f5b5f10d.zip | |
be2net: a mini optimization in rx_compl_process() code
Introduce unlikely() for skb alloc failure and vlanf checks...
Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/benet/be_main.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index cbfaa3feb7c..7bf1900df66 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -768,16 +768,8 @@ static void be_rx_compl_process(struct be_adapter *adapter, u32 vlanf, vid; u8 vtm; - vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); - vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp); - - /* vlanf could be wrongly set in some cards. - * ignore if vtm is not set */ - if ((adapter->cap & 0x400) && !vtm) - vlanf = 0; - skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN); - if (!skb) { + if (unlikely(!skb)) { if (net_ratelimit()) dev_warn(&adapter->pdev->dev, "skb alloc failed\n"); be_rx_compl_discard(adapter, rxcp); @@ -795,7 +787,15 @@ static void be_rx_compl_process(struct be_adapter *adapter, skb->protocol = eth_type_trans(skb, adapter->netdev); skb->dev = adapter->netdev; - if (vlanf) { + vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); + vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp); + + /* vlanf could be wrongly set in some cards. + * ignore if vtm is not set */ + if ((adapter->cap & 0x400) && !vtm) + vlanf = 0; + + if (unlikely(vlanf)) { if (!adapter->vlan_grp || adapter->vlans_added == 0) { kfree_skb(skb); return; |