From: Jan Engelhardt <jengelh@medozas.de>
Date: Thu, 9 Jun 2011 20:16:50 +0000 (+0200)
Subject: netfilter: xtables: collapse conditions in xt_ecn
X-Git-Tag: upstream/snapshot3+hdmi~8450^2~93^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=42c344a3bc6bb2eb4c0bef98d24d53adda255154;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

netfilter: xtables: collapse conditions in xt_ecn

One simplification of an if clause.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/net/netfilter/xt_ecn.c b/net/netfilter/xt_ecn.c
index 6ccc35d..3c831a8 100644
--- a/net/netfilter/xt_ecn.c
+++ b/net/netfilter/xt_ecn.c
@@ -37,9 +37,8 @@ static bool match_tcp(const struct sk_buff *skb, struct xt_action_param *par)
 	 * be good citizens.
 	 */
 	th = skb_header_pointer(skb, par->thoff, sizeof(_tcph), &_tcph);
-	if (th == NULL) {
+	if (th == NULL)
 		return false;
-	}
 
 	if (einfo->operation & XT_ECN_OP_MATCH_ECE) {
 		if (einfo->invert & XT_ECN_OP_MATCH_ECE) {
@@ -75,14 +74,12 @@ static bool ecn_mt4(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_ecn_info *info = par->matchinfo;
 
-	if (info->operation & XT_ECN_OP_MATCH_IP)
-		if (!match_ip(skb, info))
-			return false;
+	if (info->operation & XT_ECN_OP_MATCH_IP && !match_ip(skb, info))
+		return false;
 
-	if (info->operation & (XT_ECN_OP_MATCH_ECE | XT_ECN_OP_MATCH_CWR)) {
-		if (!match_tcp(skb, par))
-			return false;
-	}
+	if (info->operation & (XT_ECN_OP_MATCH_ECE | XT_ECN_OP_MATCH_CWR) &&
+	    !match_tcp(skb, par))
+		return false;
 
 	return true;
 }