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authorHerbert Xu <herbert@gondor.apana.org.au>2007-04-09 22:59:39 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 09:28:43 +0400
commit604763722c655c7e3f31ecf6f7b4dafcd26a7a15 (patch)
treea5c07f0e22ac86e7ca7a8c80bd3f111116610edd /net/sctp/input.c
parent628592ccdbbb5bb751217cf02e2e7abb500d7ffe (diff)
downloadlinux-604763722c655c7e3f31ecf6f7b4dafcd26a7a15.tar.xz
[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/sctp/input.c')
-rw-r--r--net/sctp/input.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 18b97eedc1fa..885109fb3dda 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -140,8 +140,7 @@ int sctp_rcv(struct sk_buff *skb)
__skb_pull(skb, skb_transport_offset(skb));
if (skb->len < sizeof(struct sctphdr))
goto discard_it;
- if ((skb->ip_summed != CHECKSUM_UNNECESSARY) &&
- (sctp_rcv_checksum(skb) < 0))
+ if (!skb_csum_unnecessary(skb) && sctp_rcv_checksum(skb) < 0)
goto discard_it;
skb_pull(skb, sizeof(struct sctphdr));