diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-04-09 11:59:39 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:28:43 -0700 |
| commit | 604763722c655c7e3f31ecf6f7b4dafcd26a7a15 (patch) | |
| tree | a5c07f0e22ac86e7ca7a8c80bd3f111116610edd /net/ipv4/tcp_ipv4.c | |
| parent | 628592ccdbbb5bb751217cf02e2e7abb500d7ffe (diff) | |
[NET]: Treat CHECKSUM_PARTIAL as CHECKSUM_UNNECESSARY
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>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index a091a99ad26..5a3e7f839fc 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1638,8 +1638,7 @@ int tcp_v4_rcv(struct sk_buff *skb) * Packet length and doff are validated by header prediction, * provided case of th->doff==0 is eliminated. * So, we defer the checks. */ - if ((skb->ip_summed != CHECKSUM_UNNECESSARY && - tcp_v4_checksum_init(skb))) + if (!skb_csum_unnecessary(skb) && tcp_v4_checksum_init(skb)) goto bad_packet; th = tcp_hdr(skb); |