[DCCP] CCID2: Add Kconfig option for CCID2 debug

Allow the user to choose whether or not to enable CCID2 debugging via
Kconfig.

Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ccids/Kconfig b/net/dccp/ccids/Kconfig
index ca00191..32752f7 100644
--- a/net/dccp/ccids/Kconfig
+++ b/net/dccp/ccids/Kconfig
@@ -30,6 +30,14 @@
 
 	  If in doubt, say M.
 
+config IP_DCCP_CCID2_DEBUG
+	  bool "CCID2 debug"
+	  depends on IP_DCCP_CCID2
+	  ---help---
+	    Enable CCID2 debug messages.
+
+	    If in doubt, say N.
+
 config IP_DCCP_CCID3
 	tristate "CCID3 (TCP-Friendly) (EXPERIMENTAL)"
 	depends on IP_DCCP