Thread (72 messages) 72 messages, 24 authors, 2006-02-03

Re: [PATCH 8/12] generic hweight{32,16,8}()

From: Bryan O'Sullivan <hidden>
Date: 2006-01-26 18:57:54

On Thu, 2006-01-26 at 12:36 +0900, Akinobu Mita wrote:
HAVE_ARCH_HWEIGHT_BITOPS is defined when the architecture has its own
version of these functions.
All of this HAVE_ARCH_xxx stuff gave Linus heartburn a few weeks ago,
and you're massively increasing its proliferation.

How about putting each class of bitop into its own header file in
asm-generic, and getting the arches that need each one to include the
specific files it needs in its own bitops.h header?

For example, the hweight stuff would go into
asm-generic/bitops-hweight.h, and then asm-foo/bitops.h would just use

#include <asm-generic/bitops-hweight.h>

or else define its own if it didn't need the generic versions.

	<b
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