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| author | dingtianhong <dingtianhong@huawei.com> | 2014-01-02 09:12:59 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-01 22:58:15 -0500 |
| commit | a742e1f545c38efb769bd02b91f11b1c9acb6e56 (patch) | |
| tree | 88908083f5c133a2845cce5d41a7b3db25b6b575 /drivers | |
| parent | 815117adaf5b87155a73d2b4b9c556977bad51cb (diff) | |
| download | linux-a742e1f545c38efb769bd02b91f11b1c9acb6e56.tar.gz linux-a742e1f545c38efb769bd02b91f11b1c9acb6e56.tar.bz2 linux-a742e1f545c38efb769bd02b91f11b1c9acb6e56.zip | |
bonding: slight optimization for bond_3ad_xmit_xor()
The bond_dev_queue_xmit() will always return 0, and as a fast path,
it is inappropriate to check the res value when xmit every package,
so remove the res check and avoid once judgement for xmit.
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/bonding/bond_3ad.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c index 5393e1ed8d4e..8d7483d5d3e6 100644 --- a/drivers/net/bonding/bond_3ad.c +++ b/drivers/net/bonding/bond_3ad.c @@ -2401,13 +2401,12 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) struct list_head *iter; int slaves_in_agg; int slave_agg_no; - int res = 1; int agg_id; if (__bond_3ad_get_active_agg_info(bond, &ad_info)) { pr_debug("%s: Error: __bond_3ad_get_active_agg_info failed\n", dev->name); - goto out; + goto err_free; } slaves_in_agg = ad_info.ports; @@ -2415,7 +2414,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) if (slaves_in_agg == 0) { pr_debug("%s: Error: active aggregator is empty\n", dev->name); - goto out; + goto err_free; } slave_agg_no = bond_xmit_hash(bond, skb, slaves_in_agg); @@ -2434,7 +2433,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) } if (SLAVE_IS_OK(slave)) { - res = bond_dev_queue_xmit(bond, skb, slave->dev); + bond_dev_queue_xmit(bond, skb, slave->dev); goto out; } } @@ -2442,21 +2441,22 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) if (slave_agg_no >= 0) { pr_err("%s: Error: Couldn't find a slave to tx on for aggregator ID %d\n", dev->name, agg_id); - goto out; + goto err_free; } /* we couldn't find any suitable slave after the agg_no, so use the * first suitable found, if found. */ if (first_ok_slave) - res = bond_dev_queue_xmit(bond, skb, first_ok_slave->dev); + bond_dev_queue_xmit(bond, skb, first_ok_slave->dev); + else + goto err_free; out: - if (res) { - /* no suitable interface, frame not sent */ - kfree_skb(skb); - } - return NETDEV_TX_OK; +err_free: + /* no suitable interface, frame not sent */ + kfree_skb(skb); + goto out; } int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond, |