Re: [PATCH] MPILIB: Provide count_leading/trailing_zeros() based on arch functions

From: David Howells
Date: Fri Jul 20 2012 - 10:22:08 EST

Arnd Bergmann <arnd@xxxxxxxx> wrote:

> I don't generally like to put stuff into asm-generic when it's unlikely
> to be overridden by architectures. It would really belong into
> include/linux, but then again we have all the other bitops in asm-generic
> as well, so whatever...

Some arches (such as Sparc, I think) have count-leading-zero instructions.

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