linux-kernel - Re: [PATCH] x86: simplify X86

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Date:	Thu, 30 Oct 2008 11:01:22 +0000
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	<tglx@...utronix.de>, <linux-kernel@...r.kernel.org>,
	<hpa@...or.com>
Subject: Re: [PATCH] x86: simplify X86_MPPARSE config option

>>> Ingo Molnar <mingo@...e.hu> 30.10.08 11:51 >>>
>
>* Jan Beulich <jbeulich@...ell.com> wrote:
>
>> Signed-off-by: Jan Beulich <jbeulich@...ell.com>
>> 
>> ---
>>  arch/x86/Kconfig |   12 ++----------
>>  1 file changed, 2 insertions(+), 10 deletions(-)
>> 
>> --- linux-2.6.28-rc2/arch/x86/Kconfig	2008-10-30 11:03:18.000000000 +0100
>> +++ 2.6.28-rc2-x86-kconfig-cleanup/arch/x86/Kconfig	2008-10-21 13:57:07.000000000 +0200
>> @@ -235,21 +235,13 @@ config X86_FIND_SMP_CONFIG
>>  	def_bool y
>>  	depends on X86_MPPARSE || X86_VOYAGER
>>  
>> -if ACPI
>>  config X86_MPPARSE
>> -	def_bool y
>> -	bool "Enable MPS table"
>> +	bool "Enable MPS table" if ACPI
>> +	default y
>>  	depends on X86_LOCAL_APIC
>>  	help
>>  	  For old smp systems that do not have proper acpi support. Newer systems
>>  	  (esp with 64bit cpus) with acpi support, MADT and DSDT will override it
>> -endif
>> -
>> -if !ACPI
>> -config X86_MPPARSE
>> -	def_bool y
>> -	depends on X86_LOCAL_APIC
>> -endif
>
>hm, that's not an equivalent change. But i guess we can do this, it 
>sure looks like a cleaner construct.

Why is it not equivalent (apart from the help portion, which doesn't
matter when the prompt isn't visible)?

Jan

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