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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>
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1 changed files with 4 additions and 5 deletions
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@ -3261,14 +3261,13 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
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unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
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unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
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unsigned int tx_flags = 0;
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unsigned int len = skb->len;
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unsigned int len = skb->len - skb->data_len;
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unsigned long flags;
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unsigned int nr_frags = 0;
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unsigned int mss = 0;
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unsigned int nr_frags;
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unsigned int mss;
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int count = 0;
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int tso;
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unsigned int f;
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len -= skb->data_len;
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/* This goes back to the question of how to logically map a tx queue
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* to a flow. Right now, performance is impacted slightly negatively
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@ -3302,7 +3301,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
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* points to just header, pull a few bytes of payload from
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* frags into skb->data */
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hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
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if (skb->data_len && (hdr_len == (skb->len - skb->data_len))) {
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if (skb->data_len && hdr_len == len) {
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switch (adapter->hw.mac_type) {
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unsigned int pull_size;
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case e1000_82544:
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