[DCCP]: tidy up dccp_v{4,6}_conn_request

This is a code simplification to remove reduplicated code
by concentrating and abstracting shared code.

Detailed Changes:

1 files changed, 9 insertions, 0 deletions

diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 5f3e1a4c036b..0f228ab5169d 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -293,3 +293,12 @@ void dccp_reqsk_send_ack(struct sk_buff *skb, struct request_sock *rsk)
 }
 
 EXPORT_SYMBOL_GPL(dccp_reqsk_send_ack);
+
+void dccp_reqsk_init(struct request_sock *req, struct sk_buff *skb)
+{
+        inet_rsk(req)->rmt_port = dccp_hdr(skb)->dccph_sport;
+        inet_rsk(req)->acked    = 0;
+        req->rcv_wnd            = dccp_feat_default_sequence_window;
+}
+
+EXPORT_SYMBOL_GPL(dccp_reqsk_init);