[CCID2]: Remove redundant BUG_ON

This removes a test for `val < 1' which would only have been triggered
when val < 0, due to a preceding test for 0.  Fixed by using an
unsigned type for cwnd (as in TCP) instead.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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.c b/net/dccp/ccids/ccid2.c
index 3e4fa6b..5114a2d 100644 (file)
--- a/net/dccp/ccids/ccid2.c
+++ b/net/dccp/ccids/ccid2.c
@@ -179,16 +179,11 @@ static void ccid2_change_l_ack_ratio(struct sock *sk, int val)
        dp->dccps_l_ack_ratio = val;
 }
 
-static void ccid2_change_cwnd(struct ccid2_hc_tx_sock *hctx, int val)
+static void ccid2_change_cwnd(struct ccid2_hc_tx_sock *hctx, u32 val)
 {
-       if (val == 0)
-               val = 1;
-
        /* XXX do we need to change ack ratio? */
-       ccid2_pr_debug("change cwnd to %d\n", val);
-
-       BUG_ON(val < 1);
-       hctx->ccid2hctx_cwnd = 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)

diff --git a/net/dccp/ccids/ccid2.h b/net/dccp/ccids/ccid2.h
index ebd7949..d9daa53 100644 (file)
--- a/net/dccp/ccids/ccid2.h
+++ b/net/dccp/ccids/ccid2.h
@@ -50,7 +50,7 @@ struct ccid2_seq {
  * @ccid2hctx_rpdupack - dupacks since rpseq
 */
 struct ccid2_hc_tx_sock {
-       int                     ccid2hctx_cwnd;
+       u32                     ccid2hctx_cwnd;
        int                     ccid2hctx_ssacks;
        int                     ccid2hctx_acks;
        unsigned int            ccid2hctx_ssthresh;