[PATCH i-g-t v2] tests/kms_plane_multiple: Fix reference CRC

[Mika Kahola <mika.kahola@xxxxxxxxx>]

kms_plane_multiple wrongly expected that igt lib function would modify the
passed igt_crc_t* object. You should use igt_crc_t** instead. This patch
fixes this anomaly in the test.

While at it, remove unnecesary struct for test data as we only need
reference CRC here.

The problem was caught by CI system and at least affects on HSW platform.

V2: Don't change function that collects CRC for reference CRC
    Fix CRC pointers
    Remove unnecessary struct for holding test data

Signed-off-by: Mika Kahola <mika.kahola@xxxxxxxxx>
---
 tests/kms_plane_multiple.c | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/tests/kms_plane_multiple.c b/tests/kms_plane_multiple.c
index f6c6223..4bc26b7 100644
--- a/tests/kms_plane_multiple.c
+++ b/tests/kms_plane_multiple.c
@@ -51,11 +51,6 @@ typedef struct {
 	struct igt_fb *fb;
 } data_t;
 
-typedef struct {
-	data_t *data;
-	igt_crc_t reference_crc;
-} test_position_t;
-
 /* Command line parameters. */
 struct {
 	int iterations;
@@ -106,7 +101,7 @@ static void test_fini(data_t *data, igt_output_t *output, int n_planes)
 
 static void
 test_grab_crc(data_t *data, igt_output_t *output, enum pipe pipe, bool atomic,
-	      color_t *color, uint64_t tiling, igt_crc_t *crc /* out */)
+	      color_t *color, uint64_t tiling, igt_crc_t **crc /* out */)
 {
 	drmModeModeInfo *mode;
 	igt_plane_t *primary;
@@ -132,7 +127,7 @@ test_grab_crc(data_t *data, igt_output_t *output, enum pipe pipe, bool atomic,
 	igt_skip_on(ret != 0);
 
 	igt_pipe_crc_start(data->pipe_crc);
-	n = igt_pipe_crc_get_crcs(data->pipe_crc, 1, &crc);
+	n = igt_pipe_crc_get_crcs(data->pipe_crc, 1, crc);
 	igt_assert_eq(n, 1);
 }
 
@@ -251,8 +246,8 @@ test_atomic_plane_position_with_output(data_t *data, enum pipe pipe,
 {
 	char buf[256];
 	struct drm_event *e = (void *)buf;
-	test_position_t test = { .data = data };
 	color_t blue  = { 0.0f, 0.0f, 1.0f };
+	igt_crc_t *ref = NULL;
 	igt_crc_t *crc = NULL;
 	unsigned int vblank_start, vblank_stop;
 	int i, n, ret;
@@ -275,8 +270,7 @@ test_atomic_plane_position_with_output(data_t *data, enum pipe pipe,
 
 	test_init(data, pipe, n_planes);
 
-	test_grab_crc(data, output, pipe, true, &blue, tiling,
-		      &test.reference_crc);
+	test_grab_crc(data, output, pipe, true, &blue, tiling, &ref);
 
 	i = 0;
 	while (i < iterations || loop_forever) {
@@ -303,7 +297,7 @@ test_atomic_plane_position_with_output(data_t *data, enum pipe pipe,
 		igt_assert(vblank_stop - vblank_start <= MAX_CRCS);
 		igt_assert_eq(n, vblank_stop - vblank_start);
 
-		igt_assert_crc_equal(&test.reference_crc, crc);
+		igt_assert_crc_equal(ref, crc);
 
 		i++;
 	}
@@ -318,9 +312,9 @@ test_legacy_plane_position_with_output(data_t *data, enum pipe pipe,
 				       igt_output_t *output, int n_planes,
 				       uint64_t tiling)
 {
-	test_position_t test = { .data = data };
 	color_t blue  = { 0.0f, 0.0f, 1.0f };
-	igt_crc_t *crc;
+	igt_crc_t *ref = NULL;
+	igt_crc_t *crc = NULL;
 	int i, n;
 	int iterations = opt.iterations < 1 ? 1 : opt.iterations;
 	bool loop_forever;
@@ -341,8 +335,7 @@ test_legacy_plane_position_with_output(data_t *data, enum pipe pipe,
 
 	test_init(data, pipe, n_planes);
 
-	test_grab_crc(data, output, pipe, false, &blue, tiling,
-		      &test.reference_crc);
+	test_grab_crc(data, output, pipe, false, &blue, tiling, &ref);
 
 	i = 0;
 	while (i < iterations || loop_forever) {
@@ -354,7 +347,7 @@ test_legacy_plane_position_with_output(data_t *data, enum pipe pipe,
 
 		igt_assert_eq(n, MAX_CRCS);
 
-		igt_assert_crc_equal(&test.reference_crc, crc);
+		igt_assert_crc_equal(ref, crc);
 
 		i++;
 	}
-- 
2.7.4

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