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[NET]: Treat CHECKSUM_PARTIAL as CHECKSUM_UNNECESSARY

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When a transmitted packet is looped back directly, CHECKSUM_PARTIAL
maps to the semantics of CHECKSUM_UNNECESSARY.  Therefore we should
treat it as such in the stack.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2007-04-09 11:59:39 -07:00
committed by David S. Miller
parent 628592ccdb
commit 604763722c
13 changed files with 29 additions and 28 deletions
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2
include/net/tcp.h
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@ -818,7 +818,7 @@ static inline __sum16 __tcp_checksum_complete(struct sk_buff *skb)
static inline int tcp_checksum_complete(struct sk_buff *skb)
{
return skb->ip_summed != CHECKSUM_UNNECESSARY &&
return !skb_csum_unnecessary(skb) &&
__tcp_checksum_complete(skb);
}