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 multiple
planes formats, and the other testing tiled formats.

Reported-by: kernel test robot <l...@intel.com>
Reported-by: Guenter Roeck <li...@roeck-us.net>
Signed-off-by: Maíra Canal <mairaca...@riseup.net>
---
 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..28f2b8f88818 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_multiple_planes(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_multiple_planes),
+       KUNIT_CASE(igt_check_drm_format_min_pitch_for_tiled_format),
        { }
 };
 
-- 
2.36.1

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