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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-14 00:39:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-15 12:26:28 -0700 |
| commit | 2ca7b0ac022aa0158599178fe1056b1ba9ec8b97 (patch) | |
| tree | 6eece25447f0ec3b5d5f5533e49e10fde4d59f35 /net/netfilter/xt_TCPMSS.c | |
| parent | af1e1cf073e3d038b7aac417a20585ecdcab7de6 (diff) | |
| download | kernel_samsung_smdk4412-2ca7b0ac022aa0158599178fe1056b1ba9ec8b97.zip kernel_samsung_smdk4412-2ca7b0ac022aa0158599178fe1056b1ba9ec8b97.tar.gz kernel_samsung_smdk4412-2ca7b0ac022aa0158599178fe1056b1ba9ec8b97.tar.bz2 | |
[NETFILTER]: Avoid skb_copy/pskb_copy/skb_realloc_headroom
This patch replaces unnecessary uses of skb_copy, pskb_copy and
skb_realloc_headroom by functions such as skb_make_writable and
pskb_expand_head.
This allows us to remove the double pointers later.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netfilter/xt_TCPMSS.c')
| -rw-r--r-- | net/netfilter/xt_TCPMSS.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c index 31b6f9d..f111edf 100644 --- a/net/netfilter/xt_TCPMSS.c +++ b/net/netfilter/xt_TCPMSS.c @@ -105,14 +105,10 @@ tcpmss_mangle_packet(struct sk_buff **pskb, * MSS Option not found ?! add it.. */ if (skb_tailroom((*pskb)) < TCPOLEN_MSS) { - struct sk_buff *newskb; - - newskb = skb_copy_expand(*pskb, skb_headroom(*pskb), - TCPOLEN_MSS, GFP_ATOMIC); - if (!newskb) + if (pskb_expand_head(*pskb, 0, + TCPOLEN_MSS - skb_tailroom(*pskb), + GFP_ATOMIC)) return -1; - kfree_skb(*pskb); - *pskb = newskb; tcph = (struct tcphdr *)(skb_network_header(*pskb) + tcphoff); } |