boards/native/nrf_bsim: Declare as pointer to constant data

To be clearer to the compiler and users.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

Author: aescolar

boards/native/nrf_bsim/common/bstests.h

@@ -92,7 +92,7 @@ struct bst_test_instance {
 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}
 
 struct bst_test_list {
-	struct bst_test_instance  *test_instance;
+	const struct bst_test_instance *test_instance;
 	struct bst_test_list    *next;
 };
 

boards/native/nrf_bsim/common/bstests_entry.c

@@ -21,7 +21,7 @@
  */
 enum bst_result_t bst_result;
 
-static struct bst_test_instance *current_test;
+static const struct bst_test_instance *current_test;
 static struct bst_test_list *test_list_top;
 
 __attribute__((weak)) bst_test_install_t test_installers[] = { NULL };
@@ -42,25 +42,22 @@ struct bst_test_list *bst_add_tests(struct bst_test_list *tests,
 		if (test_def[idx].test_id != NULL) {
 			head = bs_malloc(sizeof(struct bst_test_list));
 			head->next = NULL;
-			head->test_instance = (struct bst_test_instance *)
-						&test_def[idx++];
+			head->test_instance = &test_def[idx++];
 			tail = head;
 		}
 	}
 
 	while (test_def[idx].test_id != NULL) {
 		tail->next = bs_malloc(sizeof(struct bst_test_list));
 		tail = tail->next;
-		tail->test_instance = (struct bst_test_instance *)
-					&test_def[idx++];
+		tail->test_instance = &test_def[idx++];
 		tail->next = NULL;
 	}
 
 	return head;
 }
 
-static struct bst_test_instance *bst_test_find(struct bst_test_list *tests,
-					  char *test_id)
+static const struct bst_test_instance *bst_test_find(struct bst_test_list *tests, char *test_id)
 {
 	struct bst_test_list *top = tests;