diff options
| author | Krishna Kumar <krkumar2@in.ibm.com> | 2007-10-05 14:15:16 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:55:24 -0700 |
| commit | 6d1e3aa7bd47faacc08fdda8f58896bfd13ad90a (patch) | |
| tree | b75a92a80167f1e43996a71602451b71280ef606 /drivers/net/e1000/e1000_main.c | |
| parent | e2f036da2f8f72894988670953a1141da785e4f5 (diff) | |
| download | lwn-6d1e3aa7bd47faacc08fdda8f58896bfd13ad90a.tar.gz lwn-6d1e3aa7bd47faacc08fdda8f58896bfd13ad90a.zip | |
e1000: Simple optimizations in e1000_xmit_frame
Some simple optimizations in e1000_xmit_frame.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/e1000/e1000_main.c')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 10505de00bcc..047263830e6a 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -3261,14 +3261,13 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD; unsigned int max_txd_pwr = E1000_MAX_TXD_PWR; unsigned int tx_flags = 0; - unsigned int len = skb->len; + unsigned int len = skb->len - skb->data_len; unsigned long flags; - unsigned int nr_frags = 0; - unsigned int mss = 0; + unsigned int nr_frags; + unsigned int mss; int count = 0; int tso; unsigned int f; - len -= skb->data_len; /* This goes back to the question of how to logically map a tx queue * to a flow. Right now, performance is impacted slightly negatively @@ -3302,7 +3301,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) * points to just header, pull a few bytes of payload from * frags into skb->data */ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - if (skb->data_len && (hdr_len == (skb->len - skb->data_len))) { + if (skb->data_len && hdr_len == len) { switch (adapter->hw.mac_type) { unsigned int pull_size; case e1000_82544: |