-Wframe-larger-than in drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c

[heiher]

linux: v6.11.7
clang: version 20.0.0git (https://github.com/llvm/llvm-project 4f2651c36361468cf35cdcdf841d3abed9d0d1cc)

diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
index df17e79c45c7..9772fe657c15 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -7,7 +7,7 @@ menu "Display Engine Configuration"
 config DRM_AMD_DC
        bool "AMD DC - Enable new display engine"
        default y
-       depends on BROKEN || !CC_IS_CLANG || ARM64 || RISCV || SPARC64 || X86_64
+       depends on BROKEN || !CC_IS_CLANG || ARM64 || RISCV || SPARC64 || X86_64 || LOONGARCH
        select SND_HDA_COMPONENT if SND_HDA_CORE
        # !CC_IS_CLANG: https://github.com/ClangBuiltLinux/linux/issues/1752
        select DRM_AMD_DC_FP if ARCH_HAS_KERNEL_FPU_SUPPORT && !(CC_IS_CLANG && (ARM64 || RISCV))

CONFIG_DRM_AMD_DC=y   
CONFIG_DRM_AMD_DC_FP=y

make ARCH=loongarch LLVM=1 modules

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3286:6: error: stack frame size (2144) exceeds limit (2048) in 'dml20_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
 3286 | void dml20_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
      |      ^
  CC [M]  drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn314/dcn314_clk_mgr.o
1 error generated.
make[6]: *** [scripts/Makefile.build:244: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.o] Error 1
make[6]: *** Waiting for unfinished jobs....
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20v2.c:3393:6: error: stack frame size (2112) exceeds limit (2048) in 'dml20v2_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
 3393 | void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
      |      ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn21/display_mode_vba_21.c:3520:6: error: stack frame size (2176) exceeds limit (2048) in 'dml21_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
 3520 | void dml21_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
      |      ^
1 error generated.
make[6]: *** [scripts/Makefile.build:244: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20v2.o] Error 1
1 error generated.
make[6]: *** [scripts/Makefile.build:244: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn21/display_mode_vba_21.o] Error 1
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:37:6: error: stack frame size (2384) exceeds limit (2048) in 'dml32_recalculate' [-Werror,-Wframe-larger-than]
   37 | void dml32_recalculate(struct display_mode_lib *mode_lib)
      |      ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c:3540:6: error: stack frame size (2608) exceeds limit (2048) in 'dml30_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
 3540 | void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
      |      ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1724:6: error: stack frame size (2624) exceeds limit (2048) in 'dml32_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
 1724 | void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
      |      ^
2 errors generated.

[heiher]

cc @wangleiat @SixWeining