Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754168AbcC1PrD (ORCPT ); Mon, 28 Mar 2016 11:47:03 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:44915 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752526AbcC1PrA (ORCPT ); Mon, 28 Mar 2016 11:47:00 -0400 Date: Mon, 28 Mar 2016 11:46:58 -0400 (EDT) Message-Id: <20160328.114658.1782649417123902109.davem@davemloft.net> To: sam@ravnborg.org Cc: zhaoxiu.zeng@gmail.com, linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org Subject: Re: [PATCH 10/31] Add sparc-specific parity functions From: David Miller In-Reply-To: <20160328153743.GA13061@ravnborg.org> References: <56F8C4A3.1070808@gmail.com> <20160328.112915.1286498398436148099.davem@davemloft.net> <20160328153743.GA13061@ravnborg.org> X-Mailer: Mew version 6.6 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 28 Mar 2016 08:47:00 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 326 Lines: 9 From: Sam Ravnborg Date: Mon, 28 Mar 2016 17:37:43 +0200 > If popc is availble then use of hweight* should be fine. > But without popc then I think the generic implementation that > uses the stanford algorithm would be most efficient, > rather than the base this on the generic hweight functions. Agreed.