drm/amd/display: Fix dc_stream_remove_writeback dropping wrong writeback entries.

Browse source

[why]
The matching entry was disabled but still copied during compaction, so a
removed pipe could survive and overwrite a valid entry, leaving num_wb_info
wrong.

[how]
Skip every entry matching dwb_pipe_inst and compact only survivors. Covered
by test_dc_stream_writeback_drc_and_remove.And added new test cases for coverage.

Reviewed-by: Ilya Bakoulin <ilya.bakoulin@amd.com>
Signed-off-by: Bhuvanachandra Pinninti <BhuvanaChandra.Pinninti@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Bhuvanachandra Pinninti 2026-06-22 16:12:07 +05:30 • committed by Alex Deucher

parent d52de56938

commit 5a22cc7c72

1 changed files with 9 additions and 12 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/dc/core/dc_stream.c

View file