drm/amd/display: Test oversized AUX transfer

Browse source

[WHAT]
Add a KUnit test for dm_dp_aux_transfer() covering the message size
rejection path.

[HOW]
Build a drm_dp_aux_msg whose size exceeds the aux_payload buffer and
verify that dm_dp_aux_transfer() returns -E2BIG without issuing a
transfer.

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>

...

This commit is contained in:

Alex Hung 2026-08-30 01:03:57 -06:00 • committed by Alex Deucher

parent b22e211fa4

commit cc8755b738

1 changed files with 21 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

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

View file