[DCCP] CCID2: Initialize ssthresh to infinity

Initialize the slow-start threshold to infinity.  This way, upon connection
initiation, slow-start will be exited only upon a packet loss.  This patch will
allow connections to quickly gain speed.

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/ccid2.h b/net/dccp/ccids/ccid2.h
index 451a874..b4cc6c0 100644
--- a/net/dccp/ccids/ccid2.h
+++ b/net/dccp/ccids/ccid2.h
@@ -50,7 +50,7 @@
 	int			ccid2hctx_cwnd;
 	int			ccid2hctx_ssacks;
 	int			ccid2hctx_acks;
-	int			ccid2hctx_ssthresh;
+	unsigned int		ccid2hctx_ssthresh;
 	int			ccid2hctx_pipe;
 	int			ccid2hctx_numdupack;
 	struct ccid2_seq	*ccid2hctx_seqbuf;