* [PATCH] netfilter: kill redundant check code in which setting ip_summed value
@ 2010-06-10 8:14 Shan Wei
2010-06-14 14:22 ` Patrick McHardy
0 siblings, 1 reply; 2+ messages in thread
From: Shan Wei @ 2010-06-10 8:14 UTC (permalink / raw)
To: Patrick McHardy; +Cc: netfilter-devel
If the returned csum value is 0, We has set ip_summed with CHECKSUM_UNNECESSARY flag
in __skb_checksum_complete_head(),
So this patch kills the check and changes to return to upper caller directly.
Signed-off-by: Shan Wei<shanwei@cn.fujitsu.com>
---
net/ipv4/netfilter.c | 4 +---
net/ipv6/netfilter.c | 4 +---
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 07de855..acd1ea8 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -212,9 +212,7 @@ static __sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook,
skb->csum = csum_tcpudp_nofold(iph->saddr, iph->daddr, protocol,
skb->len - dataoff, 0);
skb->ip_summed = CHECKSUM_NONE;
- csum = __skb_checksum_complete_head(skb, dataoff + len);
- if (!csum)
- skb->ip_summed = CHECKSUM_UNNECESSARY;
+ return __skb_checksum_complete_head(skb, dataoff + len);
}
return csum;
}
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index a74951c..7155b24 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -151,9 +151,7 @@ static __sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook,
protocol,
csum_sub(0, hsum)));
skb->ip_summed = CHECKSUM_NONE;
- csum = __skb_checksum_complete_head(skb, dataoff + len);
- if (!csum)
- skb->ip_summed = CHECKSUM_UNNECESSARY;
+ return __skb_checksum_complete_head(skb, dataoff + len);
}
return csum;
};
--
1.6.3.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] netfilter: kill redundant check code in which setting ip_summed value
2010-06-10 8:14 [PATCH] netfilter: kill redundant check code in which setting ip_summed value Shan Wei
@ 2010-06-14 14:22 ` Patrick McHardy
0 siblings, 0 replies; 2+ messages in thread
From: Patrick McHardy @ 2010-06-14 14:22 UTC (permalink / raw)
To: Shan Wei; +Cc: netfilter-devel
Shan Wei wrote:
> If the returned csum value is 0, We has set ip_summed with CHECKSUM_UNNECESSARY flag
> in __skb_checksum_complete_head(),
>
> So this patch kills the check and changes to return to upper caller directly.
>
>
Applied, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-06-14 14:22 ` Patrick McHardy
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