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The old interface removed by this patch thus has been replaced by the newer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 earlier in this
patch set.

Also removed 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>

1 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index 610083ff73f6..a203d132dbef 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -140,10 +140,11 @@ send_ackvec = 1
         Whether or not to send Ack Vector options (sec. 11.5).
 
 tx_ccid = 2
-        Default CCID for the sender-receiver half-connection.
+        Default CCID for the sender-receiver half-connection. Depending on the
+        choice of CCID, the Send Ack Vector feature is enabled automatically.
 
 rx_ccid = 2
-        Default CCID for the receiver-sender half-connection.
+        Default CCID for the receiver-sender half-connection; see tx_ccid.
 
 seq_window = 100
         The initial sequence window (sec. 7.5.2).