netfilter: xt_rateest: fix comparison with self
Patrick McHardy [Mon, 22 Jun 2009 12:17:12 +0000 (14:17 +0200)]
As noticed by Török Edwin <edwintorok@gmail.com>:

Compiling the kernel with clang has shown this warning:

net/netfilter/xt_rateest.c:69:16: warning: self-comparison always results in a
constant value
                        ret &= pps2 == pps2;
                                    ^
Looking at the code:
if (info->flags & XT_RATEEST_MATCH_BPS)
            ret &= bps1 == bps2;
        if (info->flags & XT_RATEEST_MATCH_PPS)
            ret &= pps2 == pps2;

Judging from the MATCH_BPS case it seems to be a typo, with the intention of
comparing pps1 with pps2.

http://bugzilla.kernel.org/show_bug.cgi?id=13535

Signed-off-by: Patrick McHardy <kaber@trash.net>

net/netfilter/xt_rateest.c

index 220a1d5..4fc6a91 100644 (file)
@@ -66,7 +66,7 @@ xt_rateest_mt(const struct sk_buff *skb, const struct xt_match_param *par)
                if (info->flags & XT_RATEEST_MATCH_BPS)
                        ret &= bps1 == bps2;
                if (info->flags & XT_RATEEST_MATCH_PPS)
-                       ret &= pps2 == pps2;
+                       ret &= pps1 == pps2;
                break;
        }