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| author | David S. Miller <davem@davemloft.net> | 2010-05-02 02:21:44 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-02 02:21:44 -0700 |
| commit | 47d29646a2c1c147d8a7598aeac2c87dd71ed638 (patch) | |
| tree | b38f05d82883b5c0fc885812172a546af966d419 /net | |
| parent | 43815482370c510c569fd18edb57afcb0fa8cab6 (diff) | |
| download | linux-47d29646a2c1c147d8a7598aeac2c87dd71ed638.tar.gz linux-47d29646a2c1c147d8a7598aeac2c87dd71ed638.tar.xz | |
net: Inline skb_pull() in eth_type_trans().
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 <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/skbuff.c | 2 | ||||
| -rw-r--r-- | net/ethernet/eth.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 4218ff49bf13..8b9c109166a7 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1051,7 +1051,7 @@ EXPORT_SYMBOL(skb_push); */ unsigned char *skb_pull(struct sk_buff *skb, unsigned int len) { - return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len); + return skb_pull_inline(skb, len); } EXPORT_SYMBOL(skb_pull); diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 0c0d272a9888..61ec0329316c 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -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))) { |