[Patch] thinkpad_acpi: fix a build error

[Patch] thinkpad_acpi: fix a build error

[Amerigo Wang]

This patch fixes the following build error:

 Building modules, stage 2.
 MODPOST 1834 modules
ERROR: "snd_card_create" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_notify" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_boolean_mono_info" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_new1" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_card_free" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_card_register" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_add" [drivers/platform/x86/thinkpad_acpi.ko] undefined!

Cc: Len Brown <len.brown@intel.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Reported-by: Helight.Xu <helight.xu@gmail.com>
Signed-off-by: WANG Cong <amwang@redhat.com>
Tested-by: Helight.Xu <helight.xu@gmail.com>

---
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index fc5bf9d..596966c 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -215,6 +215,7 @@ config THINKPAD_ACPI
 	depends on ACPI
 	depends on INPUT
 	depends on RFKILL || RFKILL = n
+	depends on SOUND
 	select BACKLIGHT_LCD_SUPPORT
 	select BACKLIGHT_CLASS_DEVICE
 	select HWMON

Re: [Patch] thinkpad_acpi: fix a build error

[Xiaotian Feng]

Ingo already sent this patch yesterday.
http://lkml.org/lkml/2009/12/17/25


On Fri, Dec 18, 2009 at 5:28 PM, Amerigo Wang <amwang@redhat.com> wrote:
>
> This patch fixes the following build error:
>
>  Building modules, stage 2.
>  MODPOST 1834 modules
> ERROR: "snd_card_create" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_ctl_notify" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_ctl_boolean_mono_info" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_ctl_new1" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_card_free" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_card_register" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_ctl_add" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Corentin Chary <corentincj@iksaif.net>
> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
> Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
> Reported-by: Helight.Xu <helight.xu@gmail.com>
> Signed-off-by: WANG Cong <amwang@redhat.com>
> Tested-by: Helight.Xu <helight.xu@gmail.com>
>
> ---
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index fc5bf9d..596966c 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -215,6 +215,7 @@ config THINKPAD_ACPI
>        depends on ACPI
>        depends on INPUT
>        depends on RFKILL || RFKILL = n
> +       depends on SOUND
>        select BACKLIGHT_LCD_SUPPORT
>        select BACKLIGHT_CLASS_DEVICE
>        select HWMON
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>

Re: [Patch] thinkpad_acpi: fix a build error

[Takashi Iwai]

At Fri, 18 Dec 2009 17:42:34 +0800,
Xiaotian Feng wrote:
> 
> Ingo already sent this patch yesterday.
> http://lkml.org/lkml/2009/12/17/25
> 
> 
> On Fri, Dec 18, 2009 at 5:28 PM, Amerigo Wang <amwang@redhat.com> wrote:
> >
> > This patch fixes the following build error:
> >
> >  Building modules, stage 2.
> >  MODPOST 1834 modules
> > ERROR: "snd_card_create" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> > ERROR: "snd_ctl_notify" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> > ERROR: "snd_ctl_boolean_mono_info" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> > ERROR: "snd_ctl_new1" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> > ERROR: "snd_card_free" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> > ERROR: "snd_card_register" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> > ERROR: "snd_ctl_add" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> >
> > Cc: Len Brown <len.brown@intel.com>
> > Cc: Corentin Chary <corentincj@iksaif.net>
> > Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
> > Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
> > Reported-by: Helight.Xu <helight.xu@gmail.com>
> > Signed-off-by: WANG Cong <amwang@redhat.com>
> > Tested-by: Helight.Xu <helight.xu@gmail.com>
> >
> > ---
> > diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> > index fc5bf9d..596966c 100644
> > --- a/drivers/platform/x86/Kconfig
> > +++ b/drivers/platform/x86/Kconfig
> > @@ -215,6 +215,7 @@ config THINKPAD_ACPI
> >        depends on ACPI
> >        depends on INPUT
> >        depends on RFKILL || RFKILL = n
> > +       depends on SOUND

The patch isn't correct (I guess the upstream fix is same?).

CONFIG_SOUND is a global config for sound subsystem.  The relevant
functions are ALSA core part, which is CONFIG_SND.
So, the fix should be:

	depends on SND

instead.


Takashi

Re: [Patch] thinkpad_acpi: fix a build error

[Helight.Xu]

Takashi Iwai wrote:
> At Fri, 18 Dec 2009 17:42:34 +0800,
> Xiaotian Feng wrote:
>   
>> Ingo already sent this patch yesterday.
>> http://lkml.org/lkml/2009/12/17/25
>>
>>
>> On Fri, Dec 18, 2009 at 5:28 PM, Amerigo Wang <amwang@redhat.com> wrote:
>>     
>>> This patch fixes the following build error:
>>>
>>>  Building modules, stage 2.
>>>  MODPOST 1834 modules
>>> ERROR: "snd_card_create" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>>> ERROR: "snd_ctl_notify" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>>> ERROR: "snd_ctl_boolean_mono_info" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>>> ERROR: "snd_ctl_new1" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>>> ERROR: "snd_card_free" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>>> ERROR: "snd_card_register" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>>> ERROR: "snd_ctl_add" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>>>
>>> Cc: Len Brown <len.brown@intel.com>
>>> Cc: Corentin Chary <corentincj@iksaif.net>
>>> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
>>> Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
>>> Reported-by: Helight.Xu <helight.xu@gmail.com>
>>> Signed-off-by: WANG Cong <amwang@redhat.com>
>>> Tested-by: Helight.Xu <helight.xu@gmail.com>
>>>
>>> ---
>>> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
>>> index fc5bf9d..596966c 100644
>>> --- a/drivers/platform/x86/Kconfig
>>> +++ b/drivers/platform/x86/Kconfig
>>> @@ -215,6 +215,7 @@ config THINKPAD_ACPI
>>>        depends on ACPI
>>>        depends on INPUT
>>>        depends on RFKILL || RFKILL = n
>>> +       depends on SOUND
>>>       
>
> The patch isn't correct (I guess the upstream fix is same?).
>
> CONFIG_SOUND is a global config for sound subsystem.  The relevant
> functions are ALSA core part, which is CONFIG_SND.
> So, the fix should be:
>
> 	depends on SND
>   
yes, I think so ! It should be "depends on SND", and I am testing now!
> instead.
>
>
> Takashi
>
>   


-- 
Zhenwen Xu - Seven Helight
Home Page: http://zhwen.org

[PATCH] thinkpad_acpi: fix a build error

[Helight.Xu]

This patch fixes the following build error:

 Building modules, stage 2.
 MODPOST 1834 modules
ERROR: "snd_card_create" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_notify" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_boolean_mono_info" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_new1" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_card_free" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_card_register" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
ERROR: "snd_ctl_add" [drivers/platform/x86/thinkpad_acpi.ko] undefined!



Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Helight.Xu <helight.xu@gmail.com>
Tested-by: Helight.Xu 
<helight.xu@gmail.com>                                                    
---
 drivers/platform/x86/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index fc5bf9d..cda6fb6 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -215,6 +215,7 @@ config THINKPAD_ACPI
        depends on ACPI
        depends on INPUT
        depends on RFKILL || RFKILL = n
+       depends on SND
        select BACKLIGHT_LCD_SUPPORT
        select BACKLIGHT_CLASS_DEVICE
        select HWMON
-- 
1.6.5.3

-- 
Zhenwen Xu - Seven Helight
Home Page: http://zhwen.org

Re: [PATCH] thinkpad_acpi: fix a build error

[Helight.Xu]

Helight.Xu wrote:
> This patch fixes the following build error:
>
> Building modules, stage 2.
> MODPOST 1834 modules
> ERROR: "snd_card_create" [drivers/platform/x86/thinkpad_acpi.ko] 
> undefined!
> ERROR: "snd_ctl_notify" [drivers/platform/x86/thinkpad_acpi.ko] 
> undefined!
> ERROR: "snd_ctl_boolean_mono_info" 
> [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_ctl_new1" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_card_free" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
> ERROR: "snd_card_register" [drivers/platform/x86/thinkpad_acpi.ko] 
> undefined!
> ERROR: "snd_ctl_add" [drivers/platform/x86/thinkpad_acpi.ko] undefined!
>
>
>
> Signed-off-by: WANG Cong <amwang@redhat.com>
> Signed-off-by: Helight.Xu <helight.xu@gmail.com>
> Tested-by: Helight.Xu 
> <helight.xu@gmail.com>                                                    
> ---
> drivers/platform/x86/Kconfig |    1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index fc5bf9d..cda6fb6 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -215,6 +215,7 @@ config THINKPAD_ACPI
>        depends on ACPI
>        depends on INPUT
>        depends on RFKILL || RFKILL = n
> +       depends on SND
>        select BACKLIGHT_LCD_SUPPORT
>        select BACKLIGHT_CLASS_DEVICE
>        select HWMON

It was tested!

-- 
Zhenwen Xu - Seven Helight
Home Page: http://zhwen.org

Re: [Patch] thinkpad_acpi: fix a build error

[Henrique de Moraes Holschuh]

On Fri, 18 Dec 2009, Takashi Iwai wrote:
> The patch isn't correct (I guess the upstream fix is same?).
> 
> CONFIG_SOUND is a global config for sound subsystem.  The relevant
> functions are ALSA core part, which is CONFIG_SND.
> So, the fix should be:
> 
> 	depends on SND
> 
> instead.

Indeed.  Ingo already fixed that too.

Although I personally would prefer:
select SOUND
select SND

But anything that stops the build errors will do for now.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

Re: [Patch] thinkpad_acpi: fix a build error

[Takashi Iwai]

At Fri, 18 Dec 2009 12:28:15 -0200,
Henrique de Moraes Holschuh wrote:
> 
> On Fri, 18 Dec 2009, Takashi Iwai wrote:
> > The patch isn't correct (I guess the upstream fix is same?).
> > 
> > CONFIG_SOUND is a global config for sound subsystem.  The relevant
> > functions are ALSA core part, which is CONFIG_SND.
> > So, the fix should be:
> > 
> > 	depends on SND
> > 
> > instead.
> 
> Indeed.  Ingo already fixed that too.
> 
> Although I personally would prefer:
> select SOUND
> select SND

SND already depends on SOUND, so it's just superfluous.


Takashi

Re: [Patch] thinkpad_acpi: fix a build error

[Henrique de Moraes Holschuh]

On Fri, 18 Dec 2009, Takashi Iwai wrote:
> At Fri, 18 Dec 2009 12:28:15 -0200,
> Henrique de Moraes Holschuh wrote:
> > On Fri, 18 Dec 2009, Takashi Iwai wrote:
> > > The patch isn't correct (I guess the upstream fix is same?).
> > > 
> > > CONFIG_SOUND is a global config for sound subsystem.  The relevant
> > > functions are ALSA core part, which is CONFIG_SND.
> > > So, the fix should be:
> > > 
> > > 	depends on SND
> > > 
> > > instead.
> > 
> > Indeed.  Ingo already fixed that too.
> > 
> > Although I personally would prefer:
> > select SOUND
> > select SND
> 
> SND already depends on SOUND, so it's just superfluous.

No, it is not (test it).  Which is the main reason why select can be a pain.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

Re: [Patch] thinkpad_acpi: fix a build error

[Takashi Iwai]

At Fri, 18 Dec 2009 13:03:24 -0200,
Henrique de Moraes Holschuh wrote:
> 
> On Fri, 18 Dec 2009, Takashi Iwai wrote:
> > At Fri, 18 Dec 2009 12:28:15 -0200,
> > Henrique de Moraes Holschuh wrote:
> > > On Fri, 18 Dec 2009, Takashi Iwai wrote:
> > > > The patch isn't correct (I guess the upstream fix is same?).
> > > > 
> > > > CONFIG_SOUND is a global config for sound subsystem.  The relevant
> > > > functions are ALSA core part, which is CONFIG_SND.
> > > > So, the fix should be:
> > > > 
> > > > 	depends on SND
> > > > 
> > > > instead.
> > > 
> > > Indeed.  Ingo already fixed that too.
> > > 
> > > Although I personally would prefer:
> > > select SOUND
> > > select SND
> > 
> > SND already depends on SOUND, so it's just superfluous.
> 
> No, it is not (test it).  Which is the main reason why select can be a pain.

Ah, OK, it's "select".  Yeah it's a real pain, and should be avoided
in such a case...


Takashi

Re: [Patch] thinkpad_acpi: fix a build error

[Marcel Holtmann]

Hi Henrique,

> > The patch isn't correct (I guess the upstream fix is same?).
> > 
> > CONFIG_SOUND is a global config for sound subsystem.  The relevant
> > functions are ALSA core part, which is CONFIG_SND.
> > So, the fix should be:
> > 
> > 	depends on SND
> > 
> > instead.
> 
> Indeed.  Ingo already fixed that too.
> 
> Although I personally would prefer:
> select SOUND
> select SND
> 
> But anything that stops the build errors will do for now.

I still haven't seen this patch in Linus' tree. And you do need select
SOUND and SND. Otherwise you still get build errors. I have tested this
on my machine. So can someone please submit a proper patch to get this
fixed.

Regards

Marcel

Re: [Patch] thinkpad_acpi: fix a build error

[Randy Dunlap]

On Mon, 21 Dec 2009 14:38:56 -0800 Marcel Holtmann wrote:

> Hi Henrique,
> 
> > > The patch isn't correct (I guess the upstream fix is same?).
> > > 
> > > CONFIG_SOUND is a global config for sound subsystem.  The relevant
> > > functions are ALSA core part, which is CONFIG_SND.
> > > So, the fix should be:
> > > 
> > > 	depends on SND
> > > 
> > > instead.
> > 
> > Indeed.  Ingo already fixed that too.
> > 
> > Although I personally would prefer:
> > select SOUND
> > select SND
> > 
> > But anything that stops the build errors will do for now.
> 
> I still haven't seen this patch in Linus' tree. And you do need select
> SOUND and SND. Otherwise you still get build errors. I have tested this
> on my machine. So can someone please submit a proper patch to get this
> fixed.

Ugh.  Please don't 'select' to build an entire subsystem.

---
~Randy

Re: [Patch] thinkpad_acpi: fix a build error

[Helight.Xu]

Marcel Holtmann wrote:
> Hi Henrique,
>
>   
>>> The patch isn't correct (I guess the upstream fix is same?).
>>>
>>> CONFIG_SOUND is a global config for sound subsystem.  The relevant
>>> functions are ALSA core part, which is CONFIG_SND.
>>> So, the fix should be:
>>>
>>> 	depends on SND
>>>
>>> instead.
>>>       
>> Indeed.  Ingo already fixed that too.
>>
>> Although I personally would prefer:
>> select SOUND
>> select SND
>>
>> But anything that stops the build errors will do for now.
>>     
>
> I still haven't seen this patch in Linus' tree. And you do need select
> SOUND and SND. Otherwise you still get build errors. I have tested this
> on my machine. So can someone please submit a proper patch to get this
> fixed.
>   
I think my first patch about this can fix it!

http://lkml.org/lkml/2009/12/18/141

I have tested it!

> Regards
>
> Marcel
>
>
>
>   


-- 
Zhenwen Xu - Seven Helight
Home Page: http://zhwen.org

Re: [Patch] thinkpad_acpi: fix a build error

[Marcel Holtmann]

Hi Helight,

> >>> The patch isn't correct (I guess the upstream fix is same?).
> >>>
> >>> CONFIG_SOUND is a global config for sound subsystem.  The relevant
> >>> functions are ALSA core part, which is CONFIG_SND.
> >>> So, the fix should be:
> >>>
> >>> 	depends on SND
> >>>
> >>> instead.
> >>>       
> >> Indeed.  Ingo already fixed that too.
> >>
> >> Although I personally would prefer:
> >> select SOUND
> >> select SND
> >>
> >> But anything that stops the build errors will do for now.
> >>     
> >
> > I still haven't seen this patch in Linus' tree. And you do need select
> > SOUND and SND. Otherwise you still get build errors. I have tested this
> > on my machine. So can someone please submit a proper patch to get this
> > fixed.
> >   
> I think my first patch about this can fix it!
> 
> http://lkml.org/lkml/2009/12/18/141
> 
> I have tested it!

either depends on SND or select SND + SOUND, but one of them has to be
pushed into Linus' tree. Personally I don't care which one.

Regards

Marcel

Re: [Patch] thinkpad_acpi: fix a build error

[Henrique de Moraes Holschuh]

On Mon, 21 Dec 2009, Randy Dunlap wrote:
> On Mon, 21 Dec 2009 14:38:56 -0800 Marcel Holtmann wrote:
> > > > The patch isn't correct (I guess the upstream fix is same?).
> > > > 
> > > > CONFIG_SOUND is a global config for sound subsystem.  The relevant
> > > > functions are ALSA core part, which is CONFIG_SND.
> > > > So, the fix should be:
> > > > 
> > > > 	depends on SND
> > > > 
> > > > instead.
> > > 
> > > Indeed.  Ingo already fixed that too.
> > > 
> > > Although I personally would prefer:
> > > select SOUND
> > > select SND
> > > 
> > > But anything that stops the build errors will do for now.
> > 
> > I still haven't seen this patch in Linus' tree. And you do need select
> > SOUND and SND. Otherwise you still get build errors. I have tested this
> > on my machine. So can someone please submit a proper patch to get this
> > fixed.
> 
> Ugh.  Please don't 'select' to build an entire subsystem.

I won't in this case. I think I will cook up a patch to disable the entire
mixer subsystem in thinkpad-acpi if CONFIG_SND is not available.  I don't
like the depends on SND though.

As for select an entire subsystem, sorry, but I already do that for stuff
like input and backlight.  Depends is a real CRAP for the user interface in
the case of platform drivers like thinkpad-acpi.

If we could get a depends-no-hide thing, that would not cause drivers to
simply disappear from the config interface without a trace, then maybe I
would have no reason for selects.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

Re: [Patch] thinkpad_acpi: fix a build error

[Takashi Iwai]

At Tue, 22 Dec 2009 17:38:58 -0200,
Henrique de Moraes Holschuh wrote:
> 
> On Mon, 21 Dec 2009, Randy Dunlap wrote:
> > On Mon, 21 Dec 2009 14:38:56 -0800 Marcel Holtmann wrote:
> > > > > The patch isn't correct (I guess the upstream fix is same?).
> > > > > 
> > > > > CONFIG_SOUND is a global config for sound subsystem.  The relevant
> > > > > functions are ALSA core part, which is CONFIG_SND.
> > > > > So, the fix should be:
> > > > > 
> > > > > 	depends on SND
> > > > > 
> > > > > instead.
> > > > 
> > > > Indeed.  Ingo already fixed that too.
> > > > 
> > > > Although I personally would prefer:
> > > > select SOUND
> > > > select SND
> > > > 
> > > > But anything that stops the build errors will do for now.
> > > 
> > > I still haven't seen this patch in Linus' tree. And you do need select
> > > SOUND and SND. Otherwise you still get build errors. I have tested this
> > > on my machine. So can someone please submit a proper patch to get this
> > > fixed.
> > 
> > Ugh.  Please don't 'select' to build an entire subsystem.
> 
> I won't in this case. I think I will cook up a patch to disable the entire
> mixer subsystem in thinkpad-acpi if CONFIG_SND is not available.  I don't
> like the depends on SND though.

That's also not so trivial unless you give any dependency in Kconfig.
Without a restriction, THINKPAD_ACPI=y and SND=m can be chosen.

It'd be also not nice if suddenly a certain functionality disappears
without warning (even if the subsystem is enabled but as a module).


thanks,

Takashi

Re: [Patch] thinkpad_acpi: fix a build error

[Henrique de Moraes Holschuh]

On Wed, 23 Dec 2009, Takashi Iwai wrote:
> At Tue, 22 Dec 2009 17:38:58 -0200,
> Henrique de Moraes Holschuh wrote:
> > I won't in this case. I think I will cook up a patch to disable the entire
> > mixer subsystem in thinkpad-acpi if CONFIG_SND is not available.  I don't
> > like the depends on SND though.
> 
> That's also not so trivial unless you give any dependency in Kconfig.
> Without a restriction, THINKPAD_ACPI=y and SND=m can be chosen.

"depends on SND || SND = n" takes care of the technical restrictions.

I am testing the patch now.  No ALSA, no volume subdriver, module still
works (and prints some crap to syslog so that the user knows the driver
could do more with ALSA support).

> It'd be also not nice if suddenly a certain functionality disappears
> without warning (even if the subsystem is enabled but as a module).

The warning will be there.  Although I don't warn of missing rfkill
functionality if the kernel is missing the rfkill subsystem...

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

Re: [Patch] thinkpad_acpi: fix a build error

[Takashi Iwai]

At Thu, 24 Dec 2009 16:59:12 -0200,
Henrique de Moraes Holschuh wrote:
> 
> On Wed, 23 Dec 2009, Takashi Iwai wrote:
> > At Tue, 22 Dec 2009 17:38:58 -0200,
> > Henrique de Moraes Holschuh wrote:
> > > I won't in this case. I think I will cook up a patch to disable the entire
> > > mixer subsystem in thinkpad-acpi if CONFIG_SND is not available.  I don't
> > > like the depends on SND though.
> > 
> > That's also not so trivial unless you give any dependency in Kconfig.
> > Without a restriction, THINKPAD_ACPI=y and SND=m can be chosen.
> 
> "depends on SND || SND = n" takes care of the technical restrictions.

Yep, that's what I mentioned as Kconfig dependency :)

> I am testing the patch now.  No ALSA, no volume subdriver, module still
> works (and prints some crap to syslog so that the user knows the driver
> could do more with ALSA support).
> 
> > It'd be also not nice if suddenly a certain functionality disappears
> > without warning (even if the subsystem is enabled but as a module).
>
> The warning will be there.  Although I don't warn of missing rfkill
> functionality if the kernel is missing the rfkill subsystem...

The messages could be KERN_INFO instead of KERN_WARNING, I think.


thanks,

Takashi