On 07/29, Maíra Canal wrote:

The igt_check_drm_format_min_pitch() function had a lot of KUNIT_EXPECT_* calls, all of which ended up allocating and initializing various test assertion structures on the stack.

This behavior was producing -Wframe-larger-than warnings on PowerPC, i386, and MIPS architectures, such as:

drivers/gpu/drm/tests/drm_format_test.c: In function 'igt_check_drm_format_min_pitch': drivers/gpu/drm/tests/drm_format_test.c:271:1: error: the frame size of 3712 bytes is larger than 2048 bytes

So, the igt_check_drm_format_min_pitch() test case was split into three smaller functions: one testing single plane formats, one testing multi-planar formats, and the other testing tiled formats.

Fixes: 0421bb0baa84 ("drm: selftest: convert drm_format selftest to KUnit") Reported-by: kernel test robot lkp@intel.com Reported-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Maíra Canal mairacanal@riseup.net Tested-by: Guenter Roeck linux@roeck-us.net Reviewed-by: André Almeida andrealmeid@igalia.com

Applied to drm-misc-next

Thanks,

Melissa

---

v1 -> v2:

• Add Guenter's Tested-by tag.
• Add André's Reviewed-by tag.
• Replace "multiple planes" for "multi-planar" (André Almeida).
• Add Fixes tag (Melissa Wen).

---

drivers/gpu/drm/tests/drm_format_test.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tests/drm_format_test.c b/drivers/gpu/drm/tests/drm_format_test.c index 056cb8599d6d..afb4bca72187 100644 --- a/drivers/gpu/drm/tests/drm_format_test.c +++ b/drivers/gpu/drm/tests/drm_format_test.c @@ -91,7 +91,7 @@ static void igt_check_drm_format_block_height(struct kunit *test) KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, -1)); } -static void igt_check_drm_format_min_pitch(struct kunit *test) +static void igt_check_drm_format_min_pitch_for_single_plane(struct kunit *test) { const struct drm_format_info *info = NULL; @@ -175,6 +175,11 @@ static void igt_check_drm_format_min_pitch(struct kunit *test) (uint64_t)UINT_MAX * 4); KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)), (uint64_t)(UINT_MAX - 1) * 4); +}

+static void igt_check_drm_format_min_pitch_for_multi_planar(struct kunit *test) +{

• const struct drm_format_info *info = NULL;

/* Test 2 planes format */ info = drm_format_info(DRM_FORMAT_NV12); @@ -249,6 +254,11 @@ static void igt_check_drm_format_min_pitch(struct kunit *test) (uint64_t)(UINT_MAX - 1) / 2); KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, (UINT_MAX - 1) / 2), (uint64_t)(UINT_MAX - 1) / 2); +}

+static void igt_check_drm_format_min_pitch_for_tiled_format(struct kunit *test) +{

• const struct drm_format_info *info = NULL;

/* Test tiled format */ info = drm_format_info(DRM_FORMAT_X0L2); @@ -273,7 +283,9 @@ static void igt_check_drm_format_min_pitch(struct kunit *test) static struct kunit_case drm_format_tests[] = { KUNIT_CASE(igt_check_drm_format_block_width), KUNIT_CASE(igt_check_drm_format_block_height),

• KUNIT_CASE(igt_check_drm_format_min_pitch),

• KUNIT_CASE(igt_check_drm_format_min_pitch_for_single_plane),
• KUNIT_CASE(igt_check_drm_format_min_pitch_for_multi_planar),
• KUNIT_CASE(igt_check_drm_format_min_pitch_for_tiled_format), { }

}; -- 2.37.1