From: Victor Julien <victor@inliniac.net>
Date: Tue, 14 Sep 2021 08:20:58 +0000 (+0200)
Subject: detect/mpm: micro optimization for initialization
X-Git-Tag: suricata-7.0.0-beta1~1422
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce18f4b8e2aead61fa42a0e8beef71c00f7730e3;p=thirdparty%2Fsuricata.git

detect/mpm: micro optimization for initialization

Do less expensive check first.
---

diff --git a/src/detect-engine-mpm.c b/src/detect-engine-mpm.c
index 702ad734f0..1f79e29f77 100644
--- a/src/detect-engine-mpm.c
+++ b/src/detect-engine-mpm.c
@@ -1448,11 +1448,11 @@ static MpmStore *MpmStorePrepareBufferAppLayer(DetectEngineCtx *de_ctx,
         if (s->init_data->mpm_sm == NULL)
             continue;
 
-        int list = SigMatchListSMBelongsTo(s, s->init_data->mpm_sm);
-        if (list < 0)
+        if ((s->flags & am->direction) == 0)
             continue;
 
-        if ((s->flags & am->direction) == 0)
+        int list = SigMatchListSMBelongsTo(s, s->init_data->mpm_sm);
+        if (list < 0)
             continue;
 
         if (list != am->sm_list)