On Fri, Jan 09, 2015 at 08:40:56PM +0800, Wang, Yalin wrote:
> Oh, I see,
> How about change like this:
> + select HAVE_ARCH_BITREVERSE if ((CPU_V7M || CPU_V7) && !CPU_V6 &&
> !CPU_V6K)
> I am not sure if I also need add some older CPU types like !CPU_ARM9TDMI &&
> !CPU_ARM940T ?
>
> Another solution is:
> + select HAVE_ARCH_BITREVERSE if ((CPU_32V7M || CPU_32V7) && !CPU_32V6 &&
> !CPU_32V5 && !CPU_32V4 && !CPU_32V4T && !CPU_32V3)
>
> By the way, I am not clear about the difference between CPU_V6 and CPU_V6K,
> could you tell me? :)
I think
select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
is sufficient - we don't support mixing pre-v6 and v6+ CPU architectures
into a single kernel.
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