[DCCP]: Dont use dccp_v4_checksum in dccp_make_response

dccp_make_response is shared by ipv4/6 and the ipv6 code was
recalculating the checksum, not good, so move the dccp_v4_checksum
call to dccp_v4_send_response.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 34d1b11..f087593 100644 (file)
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -264,7 +264,10 @@ static int dccp_v4_send_response(struct sock *sk, struct request_sock *req,
        skb = dccp_make_response(sk, dst, req);
        if (skb != NULL) {
                const struct inet_request_sock *ireq = inet_rsk(req);
+               struct dccp_hdr *dh = dccp_hdr(skb);
 
+               dh->dccph_checksum = dccp_v4_checksum(skb, ireq->loc_addr,
+                                                     ireq->rmt_addr);
                memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
                err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
                                            ireq->rmt_addr,

diff --git a/net/dccp/output.c b/net/dccp/output.c
index 9922d26..6bd21e3 100644 (file)
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -314,9 +314,6 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
        dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), dreq->dreq_isr);
        dccp_hdr_response(skb)->dccph_resp_service = dreq->dreq_service;
 
-       dh->dccph_checksum = dccp_v4_checksum(skb, inet_rsk(req)->loc_addr,
-                                             inet_rsk(req)->rmt_addr);
-
        DCCP_INC_STATS(DCCP_MIB_OUTSEGS);
        return skb;
 }