From 2cb4c4126a03916c13d1557a7ad22142b24c69ff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=C3=A4ki?= <daniel.marjamaki@gmail.com>
Date: Sun, 7 May 2023 20:22:26 +0200
Subject: [PATCH] Fix #11443 (FP: misra-c2012-5.7 on anonymous struct) (#5033)

---
 addons/misra.py                      | 2 ++
 addons/test/misra/misra-ctu-1-test.c | 6 ++++++
 addons/test/misra/misra-ctu-2-test.c | 6 ++++++
 3 files changed, 14 insertions(+)

diff --git a/addons/misra.py b/addons/misra.py
index 5b52acc57..eaea81dfb 100755
--- a/addons/misra.py
+++ b/addons/misra.py
@@ -1362,6 +1362,8 @@ class MisraChecker:
         for scope in cfg.scopes:
             if scope.className is None:
                 continue
+            if scope.className.startswith('Anonymous'):
+                continue
             if scope.type not in ('Struct', 'Enum'):
                 continue
             used = False
diff --git a/addons/test/misra/misra-ctu-1-test.c b/addons/test/misra/misra-ctu-1-test.c
index 6c5f5344d..b5f234206 100644
--- a/addons/test/misra/misra-ctu-1-test.c
+++ b/addons/test/misra/misra-ctu-1-test.c
@@ -17,6 +17,12 @@ struct misra_5_7_violation_t {
 };
 static misra_5_7_violation_t misra_5_7_use_type_1;
 
+// #11443 - FP
+static struct
+{ // no warning
+    uint16_t x;
+} misra_5_7_false_positive_1;
+
 // cppcheck-suppress misra-c2012-8.4
 // cppcheck-suppress misra-c2012-5.8
 int misra_5_8_var1;
diff --git a/addons/test/misra/misra-ctu-2-test.c b/addons/test/misra/misra-ctu-2-test.c
index 85e66f1eb..c2dfa5cc6 100644
--- a/addons/test/misra/misra-ctu-2-test.c
+++ b/addons/test/misra/misra-ctu-2-test.c
@@ -17,6 +17,12 @@ struct misra_5_7_violation_t {
 };
 static misra_5_7_violation_t misra_5_7_use_type_2;
 
+// #11443 - FP
+static struct
+{ // no warning
+    uint16_t x;
+} misra_5_7_false_positive_2;
+
 // cppcheck-suppress misra-c2012-5.8
 static int misra_5_8_var1;
 // cppcheck-suppress misra-c2012-8.4