From: Shan Wei Date: Mon, 14 Jun 2010 14:20:02 +0000 (+0200) Subject: netfilter: kill redundant check code in which setting ip_summed value X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c86ee67c7c4bbab2818f653eb00a70671821624a;p=linux-beck.git netfilter: kill redundant check code in which setting ip_summed value 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 Signed-off-by: Patrick McHardy --- diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c index 07de855e2175..acd1ea87ba51 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 a74951c039b6..7155b2451d7c 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; };