drm/amd/display: Bump frame warning limit for clang builds of dml

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[Why&How]
When building the DML files with clang without any sanitizer or LTO,
the following -Wframe-larger-than errors break the build under
CONFIG_WERROR:

  display_mode_vba_30.c: error: stack frame size (2512) exceeds limit
    (2048) in 'dml30_ModeSupportAndSystemConfigurationFull'
  display_mode_vba_31.c: error: stack frame size (2416) exceeds limit
    (2048) in 'dml31_ModeSupportAndSystemConfigurationFull'
  display_mode_vba_314.c: error: stack frame size (2392) exceeds limit
    (2048) in 'dml314_ModeSupportAndSystemConfigurationFull'

Clang consistently spills more than gcc, pushing the frame past the 2048
byte limit.

Apply an existing approach of increasing the warn stack size to the
non-sanitizer path so plain clang builds use a 3072 byte limit.

Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5642
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Ivan Lipski 2026-08-21 00:04:53 -04:00 • committed by Alex Deucher

parent ebf8b0fd85

commit 21711b6e66

1 changed files with 5 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/dml/Makefile

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