[CCID2]: Replace cwnd assignment-function with assignment

The current function ccid2_change_cwnd in effect makes only an assignment, as
the test whether cwnd has reached 0 is only required when cwnd is halved.

This patch simplifies the code by replacing the function with the assignment
it performs.

Furthermore, since ssthresh derives from cwnd and appears in many assignments and
comparisons, the type of ssthresh has also been changed to match that of cwnd.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.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 443f08a..b72e955 100644
--- a/net/dccp/ccids/ccid2.h
+++ b/net/dccp/ccids/ccid2.h
@@ -50,9 +50,9 @@
 */
 struct ccid2_hc_tx_sock {
 	u32			ccid2hctx_cwnd;
+	u32			ccid2hctx_ssthresh;
 	int			ccid2hctx_ssacks;
 	int			ccid2hctx_acks;
-	unsigned int		ccid2hctx_ssthresh;
 	int			ccid2hctx_pipe;
 	struct ccid2_seq	*ccid2hctx_seqbuf[CCID2_SEQBUF_MAX];
 	int			ccid2hctx_seqbufc;