dccp: Remove obsolete parts of the old CCID interface

The TX/RX CCIDs of the minisock are now redundant: similar to the Ack Vector
case, their value equals initially that of the sysctl, but at the end of
feature negotiation may be something different.

The old interface removed by this patch thus has been replaced by the newer
interface to dynamically query the currently loaded CCIDs.

Also removed are the constructors for the TX CCID and the RX CCID, since the
switch "rx <-> non-rx" is done by the handler in minisocks.c (and the handler
is the only place in the code where CCIDs are loaded).

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 0 insertions, 34 deletions

diff --git a/net/dccp/ccid.c b/net/dccp/ccid.c
index 647cb06..bcc643f 100644
--- a/net/dccp/ccid.c
+++ b/net/dccp/ccid.c
@@ -253,20 +253,6 @@ out_module_put:
 
 EXPORT_SYMBOL_GPL(ccid_new);
 
-struct ccid *ccid_hc_rx_new(unsigned char id, struct sock *sk, gfp_t gfp)
-{
-	return ccid_new(id, sk, 1, gfp);
-}
-
-EXPORT_SYMBOL_GPL(ccid_hc_rx_new);
-
-struct ccid *ccid_hc_tx_new(unsigned char id,struct sock *sk,  gfp_t gfp)
-{
-	return ccid_new(id, sk, 0, gfp);
-}
-
-EXPORT_SYMBOL_GPL(ccid_hc_tx_new);
-
 static void ccid_delete(struct ccid *ccid, struct sock *sk, int rx)
 {
 	struct ccid_operations *ccid_ops;
diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index 803343ae..18f6942 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -111,11 +111,6 @@ extern int  ccid_getsockopt_builtin_ccids(struct sock *sk, int len,
 extern struct ccid *ccid_new(unsigned char id, struct sock *sk, int rx,
 			     gfp_t gfp);
 
-extern struct ccid *ccid_hc_rx_new(unsigned char id, struct sock *sk,
-				   gfp_t gfp);
-extern struct ccid *ccid_hc_tx_new(unsigned char id, struct sock *sk,
-				   gfp_t gfp);
-
 static inline int ccid_get_current_rx_ccid(struct dccp_sock *dp)
 {
 	struct ccid *ccid = dp->dccps_hc_rx_ccid;
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 077f78d..a0d5891 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -1124,22 +1124,9 @@ int dccp_feat_init(struct sock *sk)
 	INIT_LIST_HEAD(&dmsk->dccpms_pending);	/* XXX no longer used */
 	INIT_LIST_HEAD(&dmsk->dccpms_conf);	/* XXX no longer used */
 
-	/* CCID L */
-	rc = __feat_register_sp(&dp->dccps_featneg, DCCPF_CCID, 1, 0,
-				&dmsk->dccpms_tx_ccid, 1);
-	if (rc)
-		goto out;
-
-	/* CCID R */
-	rc = __feat_register_sp(&dp->dccps_featneg, DCCPF_CCID, 0, 0,
-				&dmsk->dccpms_rx_ccid, 1);
-	if (rc)
-		goto out;
-
 	/* Ack ratio */
 	rc = __feat_register_nn(&dp->dccps_featneg, DCCPF_ACK_RATIO, 0,
 				dp->dccps_l_ack_ratio);
-out:
 	return rc;
 }
 
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 308b6b9..210c346 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -45,8 +45,6 @@ EXPORT_SYMBOL_GPL(dccp_death_row);
 void dccp_minisock_init(struct dccp_minisock *dmsk)
 {
 	dmsk->dccpms_sequence_window = sysctl_dccp_feat_sequence_window;
-	dmsk->dccpms_rx_ccid	     = sysctl_dccp_feat_rx_ccid;
-	dmsk->dccpms_tx_ccid	     = sysctl_dccp_feat_tx_ccid;
 	dmsk->dccpms_send_ack_vector = sysctl_dccp_feat_send_ack_vector;
 	dmsk->dccpms_send_ndp_count  = sysctl_dccp_feat_send_ndp_count;
 }