2022-09-10 22:33:00

by Maira Canal

[permalink] [raw]
Subject: [PATCH v4 1/2] drm/tests: Split drm_framebuffer_create_test into parameterized tests

The igt_check_drm_framebuffer_create is based on a loop that executes
tests for all createbuffer_tests test cases. This could be better
represented by parameterized tests, provided by KUnit.

So, convert the igt_check_drm_framebuffer_create into parameterized tests.

Signed-off-by: Maíra Canal <[email protected]>
Reviewed-by: Michał Winiarski <[email protected]>
Reviewed-by: David Gow <[email protected]>
---
v1 -> v2: https://lore.kernel.org/dri-devel/[email protected]/
- Use .init for mock_drm_device instead of a global variable. (Michał Winiarski)
- Add Michał's Reviewed-by tag.

v2 -> v3: https://lore.kernel.org/dri-devel/[email protected]/
- Add David's Reviewed-by tag.

v3 -> v4: https://lore.kernel.org/dri-devel/[email protected]/
- No changes.
---
drivers/gpu/drm/tests/drm_framebuffer_test.c | 45 ++++++++++++--------
1 file changed, 27 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/tests/drm_framebuffer_test.c b/drivers/gpu/drm/tests/drm_framebuffer_test.c
index ec7a08ba4056..6b6f6ff4f591 100644
--- a/drivers/gpu/drm/tests/drm_framebuffer_test.c
+++ b/drivers/gpu/drm/tests/drm_framebuffer_test.c
@@ -25,7 +25,7 @@ struct drm_framebuffer_test {
const char *name;
};

-static struct drm_framebuffer_test createbuffer_tests[] = {
+static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = {
{ .buffer_created = 1, .name = "ABGR8888 normal sizes",
.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_ABGR8888,
.handles = { 1, 0, 0 }, .pitches = { 4 * 600, 0, 0 },
@@ -330,43 +330,52 @@ static struct drm_mode_config_funcs mock_config_funcs = {
.fb_create = fb_create_mock,
};

-static struct drm_device mock_drm_device = {
- .mode_config = {
+static int drm_framebuffer_test_init(struct kunit *test)
+{
+ struct drm_device *mock;
+
+ mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mock);
+
+ mock->mode_config = (struct drm_mode_config) {
.min_width = MIN_WIDTH,
.max_width = MAX_WIDTH,
.min_height = MIN_HEIGHT,
.max_height = MAX_HEIGHT,
.funcs = &mock_config_funcs,
- },
-};
+ };

-static int execute_drm_mode_fb_cmd2(struct drm_mode_fb_cmd2 *r)
+ test->priv = mock;
+ return 0;
+}
+
+static void drm_test_framebuffer_create(struct kunit *test)
{
+ const struct drm_framebuffer_test *params = test->param_value;
+ struct drm_device *mock = test->priv;
int buffer_created = 0;

- mock_drm_device.dev_private = &buffer_created;
- drm_internal_framebuffer_create(&mock_drm_device, r, NULL);
- return buffer_created;
+ mock->dev_private = &buffer_created;
+ drm_internal_framebuffer_create(mock, &params->cmd, NULL);
+ KUNIT_EXPECT_EQ(test, params->buffer_created, buffer_created);
}

-static void igt_check_drm_framebuffer_create(struct kunit *test)
+static void drm_framebuffer_test_to_desc(const struct drm_framebuffer_test *t, char *desc)
{
- int i = 0;
-
- for (i = 0; i < ARRAY_SIZE(createbuffer_tests); i++) {
- KUNIT_EXPECT_EQ_MSG(test, createbuffer_tests[i].buffer_created,
- execute_drm_mode_fb_cmd2(&createbuffer_tests[i].cmd),
- "Test %d: \"%s\" failed\n", i, createbuffer_tests[i].name);
- }
+ strcpy(desc, t->name);
}

+KUNIT_ARRAY_PARAM(drm_framebuffer_create, drm_framebuffer_create_cases,
+ drm_framebuffer_test_to_desc);
+
static struct kunit_case drm_framebuffer_tests[] = {
- KUNIT_CASE(igt_check_drm_framebuffer_create),
+ KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params),
{ }
};

static struct kunit_suite drm_framebuffer_test_suite = {
.name = "drm_framebuffer",
+ .init = drm_framebuffer_test_init,
.test_cases = drm_framebuffer_tests,
};

--
2.37.3


2022-09-10 23:13:37

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH v4 1/2] drm/tests: Split drm_framebuffer_create_test into parameterized tests

Hi Ma?ra,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on next-20220909]
[cannot apply to linus/master v6.0-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Ma-ra-Canal/drm-tests-Split-drm_framebuffer_create_test-into-parameterized-tests/20220911-054430
base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
config: hexagon-randconfig-r045-20220911
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 1546df49f5a6d09df78f569e4137ddb365a3e827)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/e0c8f1f60b840664db2c1841051ef04df6b47b51
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Ma-ra-Canal/drm-tests-Split-drm_framebuffer_create_test-into-parameterized-tests/20220911-054430
git checkout e0c8f1f60b840664db2c1841051ef04df6b47b51
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/gpu/drm/tests/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <[email protected]>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/tests/drm_framebuffer_test.c:333:12: warning: stack frame size (1080) exceeds limit (1024) in 'drm_framebuffer_test_init' [-Wframe-larger-than]
static int drm_framebuffer_test_init(struct kunit *test)
^
1 warning generated.


vim +/drm_framebuffer_test_init +333 drivers/gpu/drm/tests/drm_framebuffer_test.c

332
> 333 static int drm_framebuffer_test_init(struct kunit *test)
334 {
335 struct drm_device *mock;
336
337 mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL);
338 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mock);
339
340 mock->mode_config = (struct drm_mode_config) {
341 .min_width = MIN_WIDTH,
342 .max_width = MAX_WIDTH,
343 .min_height = MIN_HEIGHT,
344 .max_height = MAX_HEIGHT,
345 .funcs = &mock_config_funcs,
346 };
347
348 test->priv = mock;
349 return 0;
350 }
351

--
0-DAY CI Kernel Test Service
https://01.org/lkp


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