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net: Inline skb_pull() in eth_type_trans().

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In commit 6be8ac2f ("[NET]: uninline skb_pull, de-bloats a lot")
we uninlined skb_pull.

But in some critical paths it makes sense to inline this thing
and it helps performance significantly.

Create an skb_pull_inline() so that we can do this in a way that
serves also as annotation.

Based upon a patch by Eric Dumazet.

Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2010-05-02 02:21:44 -07:00
commit 47d29646a2
3 changed files with 7 additions and 2 deletions
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2
net/ethernet/eth.c
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@ -162,7 +162,7 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
skb->dev = dev;
skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
skb_pull_inline(skb, ETH_HLEN);
eth = eth_hdr(skb);
if (unlikely(is_multicast_ether_addr(eth->h_dest))) {