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SubjectRe: [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
[gmail is funny]

On Thu, Jun 3, 2021 at 11:58 PM Kees Cook <keescook@chromium.org> wrote:
>
> VEXPRESS_CONFIG needs to either be missing, built-in, or modular when
> pl111 is modular. Update the Kconfig to reflect the need.
>
> Cc: Emma Anholt <emma@anholt.net>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
> Fixes: 4dc7c97d04dc ("drm/pl111: depend on CONFIG_VEXPRESS_CONFIG")
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> drivers/gpu/drm/pl111/Kconfig | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/pl111/Kconfig b/drivers/gpu/drm/pl111/Kconfig
> index c5210a5bef1b..b84879ca430d 100644
> --- a/drivers/gpu/drm/pl111/Kconfig
> +++ b/drivers/gpu/drm/pl111/Kconfig
> @@ -2,7 +2,8 @@
> config DRM_PL111
> tristate "DRM Support for PL111 CLCD Controller"
> depends on DRM
> - depends on VEXPRESS_CONFIG
> + depends on ARM || ARM64 || COMPILE_TEST
> + depends on !VEXPRESS_CONFIG || VEXPRESS_CONFIG=DRM

I thought the canonical way to represent optional dependencies was
depends on FOO || FOO=n

Since we don't really care whether it's the same as DRM (that's
sufficient, but a bit too much), it needs to match DRM_PL111, or be
disabled. It's at least the pattern various drm drivers use for AGP.
If that still works in testing, can you pls respin?
-Daniel

> depends on COMMON_CLK
> select DRM_KMS_HELPER
> select DRM_KMS_CMA_HELPER
> --
> 2.25.1
>


--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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