Commit 202863fe authored by Tom Herbert's avatar Tom Herbert Committed by David S. Miller
Browse files

sctp: Change sctp to implement csum_levels

CHECKSUM_UNNECESSARY may be applied to the SCTP CRC so we need to
appropriate account for this by decrementing csum_level. This is
done by calling __skb_dec_checksum_unnecessary.
Signed-off-by: default avatarTom Herbert <>
Signed-off-by: default avatarDavid S. Miller <>
parent 662880f4
......@@ -133,9 +133,13 @@ int sctp_rcv(struct sk_buff *skb)
__skb_pull(skb, skb_transport_offset(skb));
if (skb->len < sizeof(struct sctphdr))
goto discard_it;
if (!sctp_checksum_disable && !skb_csum_unnecessary(skb) &&
sctp_rcv_checksum(net, skb) < 0)
skb->csum_valid = 0; /* Previous value not applicable */
if (skb_csum_unnecessary(skb))
else if (!sctp_checksum_disable && sctp_rcv_checksum(net, skb) < 0)
goto discard_it;
skb->csum_valid = 1;
skb_pull(skb, sizeof(struct sctphdr));
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment