af-packet: make mmap options parsing conditional

Only parse them if mmap is activated.

src/runmode-af-packet.c

@@ -227,13 +227,16 @@ void *ParseAFPConfig(const char *iface)
         aconf->flags |= AFP_RING_MODE;
     }
 
-    (void)ConfGetChildValueBoolWithDefault(if_root, if_default, "mmap-locked", (int *)&boolval);
+    if (aconf->flags & AFP_RING_MODE) {
+        (void)ConfGetChildValueBoolWithDefault(if_root, if_default,
+                                               "mmap-locked", (int *)&boolval);
         if (boolval) {
             SCLogInfo("Enabling locked memory for mmap on iface %s",
                     aconf->iface);
             aconf->flags |= AFP_MMAP_LOCKED;
         }
-    (void)ConfGetChildValueBoolWithDefault(if_root, if_default, "tpacket-v3", (int *)&boolval);
+        (void)ConfGetChildValueBoolWithDefault(if_root, if_default,
+                                               "tpacket-v3", (int *)&boolval);
         if (boolval) {
             if (strcasecmp(RunmodeGetActive(), "workers") == 0) {
 #ifdef HAVE_TPACKET_V3
@@ -251,12 +254,14 @@ void *ParseAFPConfig(const char *iface)
                 aconf->flags |= AFP_RING_MODE;
             }
         }
-    (void)ConfGetChildValueBoolWithDefault(if_root, if_default, "use-emergency-flush", (int *)&boolval);
+        (void)ConfGetChildValueBoolWithDefault(if_root, if_default,
+                                               "use-emergency-flush", (int *)&boolval);
         if (boolval) {
             SCLogInfo("Enabling ring emergency flush on iface %s",
                     aconf->iface);
             aconf->flags |= AFP_EMERGENCY_MODE;
         }
+    }
 
 
     aconf->copy_mode = AFP_COPY_MODE_NONE;