[DCCP]: Add FIXME for send_delayed_ack
This adds a FIXME to signal that the function dccp_send_delayed_ack is nowhere
used in the entire DCCP/CCID code.
Using a delayed Ack timer is suggested in 11.3 of RFC 4340, but it has also
rather subtle implications for the Ack-Ratio-accounting.
CCID2 does not use this (maybe it should).
I think leaving the function in is good, in case someone wants to implement
this.
Signed-off-by: Gerrit Renker <gerrit@xxxxxxxxxxxxxx>
---
net/dccp/dccp.h | 1 -
net/dccp/output.c | 1 +
2 files changed, 1 insertion(+), 1 deletion(-)
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -214,7 +214,6 @@ extern void dccp_v4_send_check(struct so
extern int dccp_retransmit_skb(struct sock *sk, struct sk_buff *skb);
extern void dccp_send_ack(struct sock *sk);
-extern void dccp_send_delayed_ack(struct sock *sk);
extern void dccp_reqsk_send_ack(struct sk_buff *sk, struct request_sock *rsk);
extern void dccp_send_sync(struct sock *sk, const u64 seq,
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -481,6 +481,7 @@ void dccp_send_ack(struct sock *sk)
EXPORT_SYMBOL_GPL(dccp_send_ack);
+/* FIXME: Is this still necessary (11.3) - currently nowhere used by DCCP. */
void dccp_send_delayed_ack(struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
-
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