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* [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
@ 2021-06-03 21:58 ` Kees Cook
  0 siblings, 0 replies; 8+ messages in thread
From: Kees Cook @ 2021-06-03 21:58 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: Kees Cook, Emma Anholt, David Airlie, dri-devel, Rob Herring,
	linux-kernel

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
 	depends on COMMON_CLK
 	select DRM_KMS_HELPER
 	select DRM_KMS_CMA_HELPER
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
@ 2021-06-03 21:58 ` Kees Cook
  0 siblings, 0 replies; 8+ messages in thread
From: Kees Cook @ 2021-06-03 21:58 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: Kees Cook, Emma Anholt, David Airlie, linux-kernel, dri-devel

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
 	depends on COMMON_CLK
 	select DRM_KMS_HELPER
 	select DRM_KMS_CMA_HELPER
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
  2021-06-03 21:58 ` Kees Cook
@ 2021-06-03 22:28   ` Daniel Vetter
  -1 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2021-06-03 22:28 UTC (permalink / raw)
  To: Kees Cook
  Cc: Emma Anholt, David Airlie, dri-devel, Rob Herring,
	Linux Kernel Mailing List

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

Hm I thought the canonical way to express optional depdencies was


>         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

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
@ 2021-06-03 22:28   ` Daniel Vetter
  0 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2021-06-03 22:28 UTC (permalink / raw)
  To: Kees Cook; +Cc: David Airlie, dri-devel, Emma Anholt, Linux Kernel Mailing List

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

Hm I thought the canonical way to express optional depdencies was


>         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

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
  2021-06-03 21:58 ` Kees Cook
@ 2021-06-03 22:30   ` Daniel Vetter
  -1 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2021-06-03 22:30 UTC (permalink / raw)
  To: Kees Cook
  Cc: Emma Anholt, David Airlie, dri-devel, Rob Herring,
	Linux Kernel Mailing List

[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

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
@ 2021-06-03 22:30   ` Daniel Vetter
  0 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2021-06-03 22:30 UTC (permalink / raw)
  To: Kees Cook; +Cc: David Airlie, dri-devel, Emma Anholt, Linux Kernel Mailing List

[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

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
  2021-06-03 22:30   ` Daniel Vetter
@ 2021-06-04  1:32     ` Kees Cook
  -1 siblings, 0 replies; 8+ messages in thread
From: Kees Cook @ 2021-06-04  1:32 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: Emma Anholt, David Airlie, dri-devel, Rob Herring,
	Linux Kernel Mailing List

On Fri, Jun 04, 2021 at 12:30:00AM +0200, Daniel Vetter wrote:
> [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

Ah-ha! So it is:

drm/Kconfig:    depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA
drm/Kconfig:    depends on FB_SIS || FB_SIS=n
drm/msm/Kconfig:        depends on QCOM_OCMEM || QCOM_OCMEM=n
drm/msm/Kconfig:        depends on QCOM_LLCC || QCOM_LLCC=n
drm/msm/Kconfig:        depends on QCOM_COMMAND_DB || QCOM_COMMAND_DB=n

I'll resping and retest. Thanks for the pointer!

-Kees

-- 
Kees Cook

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
@ 2021-06-04  1:32     ` Kees Cook
  0 siblings, 0 replies; 8+ messages in thread
From: Kees Cook @ 2021-06-04  1:32 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: David Airlie, dri-devel, Emma Anholt, Linux Kernel Mailing List

On Fri, Jun 04, 2021 at 12:30:00AM +0200, Daniel Vetter wrote:
> [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

Ah-ha! So it is:

drm/Kconfig:    depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA
drm/Kconfig:    depends on FB_SIS || FB_SIS=n
drm/msm/Kconfig:        depends on QCOM_OCMEM || QCOM_OCMEM=n
drm/msm/Kconfig:        depends on QCOM_LLCC || QCOM_LLCC=n
drm/msm/Kconfig:        depends on QCOM_COMMAND_DB || QCOM_COMMAND_DB=n

I'll resping and retest. Thanks for the pointer!

-Kees

-- 
Kees Cook

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2021-06-04  1:33 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-03 21:58 [PATCH] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends Kees Cook
2021-06-03 21:58 ` Kees Cook
2021-06-03 22:28 ` Daniel Vetter
2021-06-03 22:28   ` Daniel Vetter
2021-06-03 22:30 ` Daniel Vetter
2021-06-03 22:30   ` Daniel Vetter
2021-06-04  1:32   ` Kees Cook
2021-06-04  1:32     ` Kees Cook

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