[PATCH v2 4/7] init: main: add KUnit to kernel init

[Brendan Higgins]

Remove KUnit from init calls entirely, instead call directly from
kernel_init().

Co-developed-by: Alan Maguire <alan.maguire@xxxxxxxxxx>
Signed-off-by: Alan Maguire <alan.maguire@xxxxxxxxxx>
Signed-off-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Reviewed-by: Stephen Boyd <sboyd@xxxxxxxxxx>
---
 include/kunit/test.h | 9 +++++++++
 init/main.c          | 4 ++++
 lib/kunit/executor.c | 4 +---
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/include/kunit/test.h b/include/kunit/test.h
index 8a02f93a6b505..8689dd1459844 100644
--- a/include/kunit/test.h
+++ b/include/kunit/test.h
@@ -197,6 +197,15 @@ void kunit_init_test(struct kunit *test, const char *name);
 
 int kunit_run_tests(struct kunit_suite *suite);
 
+#if IS_BUILTIN(CONFIG_KUNIT)
+int kunit_run_all_tests(void);
+#else
+static inline int kunit_run_all_tests(void)
+{
+	return 0;
+}
+#endif /* IS_BUILTIN(CONFIG_KUNIT) */
+
 /*
  * If a test suite is built-in, module_init() gets translated into
  * an initcall which we don't want as the idea is that for builtins
diff --git a/init/main.c b/init/main.c
index 2cd736059416f..90301d4fbd1bb 100644
--- a/init/main.c
+++ b/init/main.c
@@ -103,6 +103,8 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/initcall.h>
 
+#include <kunit/test.h>
+
 static int kernel_init(void *);
 
 extern void init_IRQ(void);
@@ -1201,6 +1203,8 @@ static noinline void __init kernel_init_freeable(void)
 
 	do_basic_setup();
 
+	kunit_run_all_tests();
+
 	console_on_rootfs();
 
 	/*
diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
index 6429927d598a5..b75a46c560847 100644
--- a/lib/kunit/executor.c
+++ b/lib/kunit/executor.c
@@ -11,7 +11,7 @@ extern struct kunit_suite * const * const __kunit_suites_end[];
 
 #if IS_BUILTIN(CONFIG_KUNIT)
 
-static int kunit_run_all_tests(void)
+int kunit_run_all_tests(void)
 {
 	struct kunit_suite * const * const *suites, * const *subsuite;
 	bool has_test_failed = false;
@@ -31,6 +31,4 @@ static int kunit_run_all_tests(void)
 	return 0;
 }
 
-late_initcall(kunit_run_all_tests);
-
 #endif /* IS_BUILTIN(CONFIG_KUNIT) */
-- 
2.25.0.341.g760bfbb309-goog