Re: CPU_BIG_ENDIAN in generic code (was: Re: [PATCH v3 3/7] arch/sparc: Define config parameter CPU_BIG_ENDIAN)

[Max Filippov]

On Thu, May 25, 2017 at 3:41 PM, Babu Moger <babu.moger@xxxxxxxxxx> wrote:
> On 5/25/2017 5:27 PM, Max Filippov wrote:
>> Xtensa may have either endianness and for xtensa we define
>> CONFIG_CPU_BIG_ENDIAN or CONFIG_CPU_LITTLE_ENDIAN
>> in the arch/xtensa/Makefile based on the value of the compiler builtin
>> macro.
>
> Hmm.. That means defining  CPU_LITTLE_ENDIAN  based on "def_bool
> !CPU_BIG_ENDIAN" will
>  be a problem for Xtensa because menuconfig does not have the knowledge of
> compiler builtin macro.
> Is that correct?

I think so. OTOH outside the arch/ CPU_LITTLE_ENDIAN is only used in
two Kconfig files:

drivers/crypto/nx/Kconfig
drivers/isdn/hisax/Kconfig

both of which are irrelevant for xtensa.

-- 
Thanks.
-- Max