[PATCH] drm/amd/display: Increase frame-larger-than to 4096 in dml Makefile

[Alex Deucher]

On Fri, Jul 29, 2022 at 4:51 PM Praful Swarnakar
<praful.swarnakar at amd.com> wrote:
>
> When enabling kcov and debug kernel configuration, stack frame size
> exceeds set limit, resulting into build error.
>
> Fixes the following build warnings:
> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c:3955:6:
> error: stack frame size (2344) exceeds limit (2048) in
> 'dml31_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]

Should be fixed with this patch:
https://gitlab.freedesktop.org/agd5f/linux/-/commit/1b54a0121dba12af268fb75c413feabdb9f573d4

Alex

>
> Fixes: 5679b6e2c887 ("drm/amd/display: Enable building new display engine with KCOV enabled")
> Signed-off-by: Praful Swarnakar <praful.swarnakar at amd.com>
> Signed-off-by: Tim Van Patten <timvp at google.com>
> Suggested-by: Raul Rangel <rrangel at google.com>
> ---
>  drivers/gpu/drm/amd/display/dc/dml/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> index 359f6e9a1da0..42b1df843a6c 100644
> --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> @@ -51,7 +51,7 @@ endif
>  endif
>
>  ifneq ($(CONFIG_FRAME_WARN),0)
> -frame_warn_flag := -Wframe-larger-than=2048
> +frame_warn_flag := -Wframe-larger-than=4096
>  endif
>
>  CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_ccflags)
> --
> 2.25.1
>