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 @@
* 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 @@
{
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;
}