Re: [PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
Randy Dunlap writes:
Hello Randy,
> On 8/4/23 05:51, Javier Martinez Canillas wrote:
>> The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>> emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
>> to an effective 'select FB_CORE', so any config that previously had DRM=y
>> and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
>>
>> This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>> as reported by Arthur Grillo, e.g:
>>
>> WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>> Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
>> Selected by [y]:
>> - DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
>>
>> Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
>> DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
>> be to enable DRM fbdev emulation but without a framebuffer console.
>>
>> Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>> emulation is enabled")
>> Reported-by: Arthur Grillo
>> Closes:
>> https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
>> Suggested-by: Arnd Bergmann
>> Signed-off-by: Javier Martinez Canillas
>
> Acked-by: Randy Dunlap
> Tested-by: Randy Dunlap # build-tested
>
I have already pushed this patch so I won't be able to add these tags but
thanks a lot for testing and confirming that the patch fixes your issue!
> Thanks.
>
>
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
Re: [PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
On 8/4/23 05:51, Javier Martinez Canillas wrote:
> The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
> emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
> to an effective 'select FB_CORE', so any config that previously had DRM=y
> and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
>
> This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
> as reported by Arthur Grillo, e.g:
>
> WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
> Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
> Selected by [y]:
> - DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
>
> Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
> DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
> be to enable DRM fbdev emulation but without a framebuffer console.
>
> Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev emulation
> is enabled")
> Reported-by: Arthur Grillo
> Closes:
> https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
> Suggested-by: Arnd Bergmann
> Signed-off-by: Javier Martinez Canillas
Acked-by: Randy Dunlap
Tested-by: Randy Dunlap # build-tested
Thanks.
> ---
>
> drivers/gpu/drm/Kconfig | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index b51c6a141dfa..2a44b9419d4d 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -135,7 +135,6 @@ config DRM_DEBUG_MODESET_LOCK
> config DRM_FBDEV_EMULATION
> bool "Enable legacy fbdev support for your modesetting driver"
> depends on DRM
> - select FRAMEBUFFER_CONSOLE if !EXPERT
> select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
> default y
> help
--
~Randy
Re: [PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
Arthur Grillo writes:
> On 04/08/23 09:51, Javier Martinez Canillas wrote:
>> The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>> emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
>> to an effective 'select FB_CORE', so any config that previously had DRM=y
>> and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
>>
>> This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>> as reported by Arthur Grillo, e.g:
>>
>> WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>> Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
>> Selected by [y]:
>> - DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
>>
>> Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
>> DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
>> be to enable DRM fbdev emulation but without a framebuffer console.
>>
>> Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>> emulation is enabled")
>> Reported-by: Arthur Grillo
>> Closes:
>> https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
>> Suggested-by: Arnd Bergmann
>> Signed-off-by: Javier Martinez Canillas
>> ---
>
> Greate patch! I was about to send the same one XD.
>
> Reviewed-by: Arthur Grillo
>
Pushed to drm-misc (drm-misc-next). Thanks!
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
Re: [PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
On 04/08/23 09:51, Javier Martinez Canillas wrote:
> The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
> emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
> to an effective 'select FB_CORE', so any config that previously had DRM=y
> and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
>
> This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
> as reported by Arthur Grillo, e.g:
>
> WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
> Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
> Selected by [y]:
> - DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
>
> Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
> DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
> be to enable DRM fbdev emulation but without a framebuffer console.
>
> Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev emulation
> is enabled")
> Reported-by: Arthur Grillo
> Closes:
> https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
> Suggested-by: Arnd Bergmann
> Signed-off-by: Javier Martinez Canillas
> ---
Greate patch! I was about to send the same one XD.
Reviewed-by: Arthur Grillo
Best Regards,
~Arthur Grillo
>
> drivers/gpu/drm/Kconfig | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index b51c6a141dfa..2a44b9419d4d 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -135,7 +135,6 @@ config DRM_DEBUG_MODESET_LOCK
> config DRM_FBDEV_EMULATION
> bool "Enable legacy fbdev support for your modesetting driver"
> depends on DRM
> - select FRAMEBUFFER_CONSOLE if !EXPERT
> select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
> default y
> help
Re: [PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
"Arnd Bergmann" writes:
> On Fri, Aug 4, 2023, at 15:07, Daniel Vetter wrote:
>> On Fri, 4 Aug 2023 at 14:52, Javier Martinez Canillas
>> wrote:
>>>
>>> The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>>> emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
>>> to an effective 'select FB_CORE', so any config that previously had DRM=y
>>> and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
>>>
>>> This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>>> as reported by Arthur Grillo, e.g:
>>>
>>> WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>>> Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
>>> Selected by [y]:
>>> - DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
>>>
>>> Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
>>> DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
>>> be to enable DRM fbdev emulation but without a framebuffer console.
>>>
>>> Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>>> emulation is enabled")
>>> Reported-by: Arthur Grillo
>>> Closes:
>>> https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
>>> Suggested-by: Arnd Bergmann
>>> Signed-off-by: Javier Martinez Canillas
>>
>> Yeah originally this was just to help people not misconfigure their
>> kernels and end up with a black screen. But select is really not a
>> nice way to do that, imo we could drop the FB_CORE select too :-)
>
> Droping the 'FB_CORE' select only works if we make FB_CORE user
> visible and add a 'depends on' for it instead. Not sure this
> is any better since this would only ever be used when either
> CONFIG_FB or CONFIG_DRM_FBDEV_EMULATION is enabled.
>
Agreed.
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
Re: [PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
On Fri, Aug 4, 2023, at 15:07, Daniel Vetter wrote:
> On Fri, 4 Aug 2023 at 14:52, Javier Martinez Canillas
> wrote:
>>
>> The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>> emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
>> to an effective 'select FB_CORE', so any config that previously had DRM=y
>> and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
>>
>> This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>> as reported by Arthur Grillo, e.g:
>>
>> WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
>> Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
>> Selected by [y]:
>> - DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
>>
>> Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
>> DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
>> be to enable DRM fbdev emulation but without a framebuffer console.
>>
>> Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
>> emulation is enabled")
>> Reported-by: Arthur Grillo
>> Closes:
>> https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
>> Suggested-by: Arnd Bergmann
>> Signed-off-by: Javier Martinez Canillas
>
> Yeah originally this was just to help people not misconfigure their
> kernels and end up with a black screen. But select is really not a
> nice way to do that, imo we could drop the FB_CORE select too :-)
Droping the 'FB_CORE' select only works if we make FB_CORE user
visible and add a 'depends on' for it instead. Not sure this
is any better since this would only ever be used when either
CONFIG_FB or CONFIG_DRM_FBDEV_EMULATION is enabled.
Arnd
Re: [PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
On Fri, 4 Aug 2023 at 14:52, Javier Martinez Canillas
wrote:
>
> The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
> emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
> to an effective 'select FB_CORE', so any config that previously had DRM=y
> and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
>
> This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
> as reported by Arthur Grillo, e.g:
>
> WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
> Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
> Selected by [y]:
> - DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
>
> Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
> DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
> be to enable DRM fbdev emulation but without a framebuffer console.
>
> Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev emulation
> is enabled")
> Reported-by: Arthur Grillo
> Closes:
> https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
> Suggested-by: Arnd Bergmann
> Signed-off-by: Javier Martinez Canillas
Yeah originally this was just to help people not misconfigure their
kernels and end up with a black screen. But select is really not a
nice way to do that, imo we could drop the FB_CORE select too :-)
Acked-by: Daniel Vetter
Cheers, Sima
> ---
>
> drivers/gpu/drm/Kconfig | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index b51c6a141dfa..2a44b9419d4d 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -135,7 +135,6 @@ config DRM_DEBUG_MODESET_LOCK
> config DRM_FBDEV_EMULATION
> bool "Enable legacy fbdev support for your modesetting driver"
> depends on DRM
> - select FRAMEBUFFER_CONSOLE if !EXPERT
> select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
> default y
> help
> --
> 2.41.0
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
[PATCH] drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION
The commit c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev
emulation is enabled") changed DRM_FBDEV_EMULATION from 'depends on FB'
to an effective 'select FB_CORE', so any config that previously had DRM=y
and FB=n now has FB_CORE=y and FRAMEBUFFER_CONSOLE=y.
This leads to unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
as reported by Arthur Grillo, e.g:
WARNING: unmet direct dependencies detected for FRAMEBUFFER_CONSOLE
Depends on [n]: VT [=n] && FB_CORE [=y] && !UML [=y]
Selected by [y]:
- DRM_FBDEV_EMULATION [=y] && HAS_IOMEM [=y] && DRM [=y] && !EXPERT [=n]
Arnd Bergmann suggests to drop the select FRAMEBUFFER_CONSOLE for the
DRM_FBDEV_EMULATION Kconfig symbol, since a possible use case could
be to enable DRM fbdev emulation but without a framebuffer console.
Fixes: c242f48433e7 ("drm: Make FB_CORE to be selected if DRM fbdev emulation
is enabled")
Reported-by: Arthur Grillo
Closes:
https://lore.kernel.org/dri-devel/20230726220325.278976-1-arthurgri...@riseup.net
Suggested-by: Arnd Bergmann
Signed-off-by: Javier Martinez Canillas
---
drivers/gpu/drm/Kconfig | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index b51c6a141dfa..2a44b9419d4d 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -135,7 +135,6 @@ config DRM_DEBUG_MODESET_LOCK
config DRM_FBDEV_EMULATION
bool "Enable legacy fbdev support for your modesetting driver"
depends on DRM
- select FRAMEBUFFER_CONSOLE if !EXPERT
select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
default y
help
--
2.41.0
