diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c
index a3c42cd..747fa1c 100644
--- a/net/dccp/ccids/ccid2.c
+++ b/net/dccp/ccids/ccid2.c
@@ -165,12 +165,6 @@
 	dp->dccps_l_ack_ratio = val;
 }
 
-static void ccid2_change_cwnd(struct ccid2_hc_tx_sock *hctx, u32 val)
-{
-	hctx->ccid2hctx_cwnd = val? : 1;
-	ccid2_pr_debug("changed cwnd to %u\n", hctx->ccid2hctx_cwnd);
-}
-
 static void ccid2_change_srtt(struct ccid2_hc_tx_sock *hctx, long val)
 {
 	ccid2_pr_debug("change SRTT to %ld\n", val);
@@ -212,10 +206,10 @@
 
 	/* adjust pipe, cwnd etc */
 	ccid2_change_pipe(hctx, 0);
-	hctx->ccid2hctx_ssthresh = hctx->ccid2hctx_cwnd >> 1;
+	hctx->ccid2hctx_ssthresh = hctx->ccid2hctx_cwnd / 2;
 	if (hctx->ccid2hctx_ssthresh < 2)
 		hctx->ccid2hctx_ssthresh = 2;
-	ccid2_change_cwnd(hctx, 1);
+	hctx->ccid2hctx_cwnd	 = 1;
 
 	/* clear state about stuff we sent */
 	hctx->ccid2hctx_seqt	= hctx->ccid2hctx_seqh;
@@ -440,7 +434,7 @@
 			/* increase every 2 acks */
 			hctx->ccid2hctx_ssacks++;
 			if (hctx->ccid2hctx_ssacks == 2) {
-				ccid2_change_cwnd(hctx, hctx->ccid2hctx_cwnd+1);
+				hctx->ccid2hctx_cwnd++;
 				hctx->ccid2hctx_ssacks = 0;
 				*maxincr = *maxincr - 1;
 			}
@@ -453,7 +447,7 @@
 		hctx->ccid2hctx_acks++;
 
 		if (hctx->ccid2hctx_acks >= hctx->ccid2hctx_cwnd) {
-			ccid2_change_cwnd(hctx, hctx->ccid2hctx_cwnd + 1);
+			hctx->ccid2hctx_cwnd++;
 			hctx->ccid2hctx_acks = 0;
 		}
 	}
@@ -543,10 +537,8 @@
 
 	hctx->ccid2hctx_last_cong = jiffies;
 
-	ccid2_change_cwnd(hctx, hctx->ccid2hctx_cwnd >> 1);
-	hctx->ccid2hctx_ssthresh = hctx->ccid2hctx_cwnd;
-	if (hctx->ccid2hctx_ssthresh < 2)
-		hctx->ccid2hctx_ssthresh = 2;
+	hctx->ccid2hctx_cwnd     = hctx->ccid2hctx_cwnd / 2 ? : 1U;
+	hctx->ccid2hctx_ssthresh = max(hctx->ccid2hctx_cwnd, 2U);
 
 	/* Avoid spurious timeouts resulting from Ack Ratio > cwnd */
 	if (dccp_sk(sk)->dccps_l_ack_ratio > hctx->ccid2hctx_cwnd)
@@ -759,7 +751,7 @@
 	u32 max_ratio;
 
 	/* RFC 4341, 5: initialise ssthresh to arbitrarily high (max) value */
-	hctx->ccid2hctx_ssthresh  = ~0;
+	hctx->ccid2hctx_ssthresh  = ~0U;
 
 	/*
 	 * RFC 4341, 5: "The cwnd parameter is initialized to at most four