drm/amd/display: Build MST DSC helpers for KUnit

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[WHAT]
The MST DSC helpers in amdgpu_dm_mst_types.c are compiled only when
CONFIG_DRM_AMD_DC_FP is enabled, which no UML KUnit build can select,
so none of them can be reached from the KUnit suite.

[HOW]
Widen the CONFIG_DRM_AMD_DC_FP guards to also build when
CONFIG_DRM_AMD_DC_KUNIT_TEST is set. The only caller of
validate_dsc_caps_on_connector() is guarded as well, so guard it by
IS_ENABLED() instead to keep it out of the KUnit build while still
referencing the helper. With the real bodies now built,
dm_mst_test_fp_guarded_public_stubs() no longer describes reachable
behaviour, so remove it along with its case entry.

Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Alex Hung 2026-08-30 01:03:44 -06:00 • committed by Alex Deucher

parent 8ff6a6ef99

commit b22e211fa4

2 changed files with 6 additions and 25 deletions

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12

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

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19

drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_mst_types_test.c

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