[PATCH v2] arch: Kconfig: Let all little endian architectures define CPU_LITTLE_ENDIAN explicitly

[Michal Marek]

Dne 13.8.2014 10:03, Geert Uytterhoeven napsal(a):
> CC kbuild
> 
> On Wed, Aug 13, 2014 at 12:48 AM, Chen Gang <gang.chen.5i5j at gmail.com> wrote:
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index c49a775..0510a5d 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -199,6 +199,11 @@ config NEED_DMA_MAP_STATE
>>  config ARCH_SUPPORTS_UPROBES
>>         def_bool y
>>
>> +config CPU_LITTLE_ENDIAN
>> +       depends on !CPU_BIG_ENDIAN
>> +       def_bool y
>> +
>> +
>>  config ARCH_HAS_DMA_SET_COHERENT_MASK
>>         bool
> 
> As this is a common symbol, and replicated for all affected architectures,
> I'm wondering if we should have the "config CPU_LITTLE_ENDIAN" in
> common Kconfig code instead, and make the individual architectures do a
> "select CPU_LITTLE_ENDIAN"?

Yes!


> Also we could have "config CPU_BIG_ENDIAN", too, and error out
> if none or both are selected (can Kconfig error out?).

We can error out in the Makefile, if there is consensus that we should
be doing so.

Michal