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lib/debugfs: Add igt_assert_crc_equal

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Because of hash collisions tests should only ever compare crc
checksums for equality. Checking for inequality can result in random
failures.

To ensure this only expose and igt_assert function and use that.
Follow-up patches will rework the code for tests which don't follow
this requirement and try to compare for CRC inequality.

v2: Rebase on top of Matt's kms_plane changes.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This commit is contained in:
Daniel Vetter
2015-02-27 20:37:29 +01:00
parent 4fec18e5e0
commit e588f6dfa6
11 changed files with 43 additions and 23 deletions
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tests/kms_rotation_crc.c
+2 -2
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@@ -204,7 +204,7 @@ static void test_plane_rotation(data_t *data, enum igt_plane plane_type)
igt_display_commit2(display, commit);
igt_pipe_crc_collect_crc(data->pipe_crc, &crc_output);
igt_assert(igt_crc_equal(&data->ref_crc, &crc_output));
igt_assert_crc_equal(&data->ref_crc, &crc_output);
/* check the rotation state has been reset when the VT
* mode is restored */
@@ -212,7 +212,7 @@ static void test_plane_rotation(data_t *data, enum igt_plane plane_type)
kmstest_set_vt_graphics_mode();
prepare_crtc(data, output, pipe, plane);
igt_pipe_crc_collect_crc(data->pipe_crc, &crc_output);
igt_assert(igt_crc_equal(&crc_unrotated, &crc_output));
igt_assert_crc_equal(&crc_unrotated, &crc_output);
valid_tests++;