diff options
| author | Joe Stringer <joe@wand.net.nz> | 2013-07-25 10:52:05 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-27 20:07:15 -0700 |
| commit | 024ec3deac33ddbd81f3c887506f132b24ea21a7 (patch) | |
| tree | 32e21519a6180435415dc89628929d0e6ed56ecf /net/sctp | |
| parent | e7428e95a06fb516fac1308bd0e176e27c0b9287 (diff) | |
| download | linux-024ec3deac33ddbd81f3c887506f132b24ea21a7.tar.gz | |
net/sctp: Refactor SCTP skb checksum computation
This patch consolidates the SCTP checksum calculation code from various places to a single new function, sctp_compute_cksum(skb, offset). Signed-off-by: Joe Stringer <joe@wand.net.nz> Reviewed-by: Julian Anastasov <ja@ssi.bg> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/input.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/net/sctp/input.c b/net/sctp/input.c index 7993495a4c0f..fa91aff02388 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -87,15 +87,7 @@ static inline int sctp_rcv_checksum(struct net *net, struct sk_buff *skb) { struct sctphdr *sh = sctp_hdr(skb); __le32 cmp = sh->checksum; - struct sk_buff *list; - __le32 val; - __u32 tmp = sctp_start_cksum((__u8 *)sh, skb_headlen(skb)); - - skb_walk_frags(skb, list) - tmp = sctp_update_cksum((__u8 *)list->data, skb_headlen(list), - tmp); - - val = sctp_end_cksum(tmp); + __le32 val = sctp_compute_cksum(skb, 0); if (val != cmp) { /* CRC failure, dump it. */ |