drm/xe/kunit: Simplify xe_dma_buf live tests code layout

The test case logic is implemented by the functions compiled as
part of the core Xe driver module and then exported to build and
register the test suite in the live test module.

But we don't need to export individual test case functions, we may
just export the entire test suite. And we don't need to register
this test suite in a separate file, it can be done in the main
file of the live test module.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240708111210.1154-3-michal.wajdeczko@intel.com

drivers/gpu/drm/xe/tests/Makefile

@@ -3,7 +3,6 @@
 # "live" kunit tests
 obj-$(CONFIG_DRM_XE_KUNIT_TEST) += xe_live_test.o
 xe_live_test-y = xe_live_test_mod.o \
-	xe_dma_buf_test.o \
 	xe_migrate_test.o \
 	xe_mocs_test.o
 

drivers/gpu/drm/xe/tests/xe_dma_buf.c

@@ -8,7 +8,6 @@
 #include <kunit/test.h>
 #include <kunit/visibility.h>
 
-#include "tests/xe_dma_buf_test.h"
 #include "tests/xe_pci_test.h"
 
 #include "xe_pci.h"
@@ -274,8 +273,19 @@ static int dma_buf_run_device(struct xe_device *xe)
 	return 0;
 }
 
-void xe_dma_buf_kunit(struct kunit *test)
+static void xe_dma_buf_kunit(struct kunit *test)
 {
 	xe_call_for_each_device(dma_buf_run_device);
 }
-EXPORT_SYMBOL_IF_KUNIT(xe_dma_buf_kunit);
+
+static struct kunit_case xe_dma_buf_tests[] = {
+	KUNIT_CASE(xe_dma_buf_kunit),
+	{}
+};
+
+VISIBLE_IF_KUNIT
+struct kunit_suite xe_dma_buf_test_suite = {
+	.name = "xe_dma_buf",
+	.test_cases = xe_dma_buf_tests,
+};
+EXPORT_SYMBOL_IF_KUNIT(xe_dma_buf_test_suite);

drivers/gpu/drm/xe/tests/xe_dma_buf_test.c

-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright © 2022 Intel Corporation
- */
-
-#include "xe_dma_buf_test.h"
-
-#include <kunit/test.h>
-
-static struct kunit_case xe_dma_buf_tests[] = {
-	KUNIT_CASE(xe_dma_buf_kunit),
-	{}
-};
-
-static struct kunit_suite xe_dma_buf_test_suite = {
-	.name = "xe_dma_buf",
-	.test_cases = xe_dma_buf_tests,
-};
-
-kunit_test_suite(xe_dma_buf_test_suite);

drivers/gpu/drm/xe/tests/xe_dma_buf_test.h

-/* SPDX-License-Identifier: GPL-2.0 AND MIT */
-/*
- * Copyright © 2023 Intel Corporation
- */
-
-#ifndef _XE_DMA_BUF_TEST_H_
-#define _XE_DMA_BUF_TEST_H_
-
-struct kunit;
-
-void xe_dma_buf_kunit(struct kunit *test);
-
-#endif

drivers/gpu/drm/xe/tests/xe_live_test_mod.c

@@ -6,8 +6,10 @@
 #include <kunit/test.h>
 
 extern struct kunit_suite xe_bo_test_suite;
+extern struct kunit_suite xe_dma_buf_test_suite;
 
 kunit_test_suite(xe_bo_test_suite);
+kunit_test_suite(xe_dma_buf_test_suite);
 
 MODULE_AUTHOR("Intel Corporation");
 MODULE_LICENSE("GPL");