From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] net: pfifo_fast - use ffs(x)-1 instead of array lookup Date: Tue, 13 Mar 2012 00:25:00 -0700 (PDT) Message-ID: <20120313.002500.1677522047432496866.davem@davemloft.net> References: <1331615541-18214-1-git-send-email-zenczykowski@gmail.com> <20120312.225435.1585479447873313061.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=iso-8859-2 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: netdev@vger.kernel.org To: zenczykowski@gmail.com Return-path: Received: from shards.monkeyblade.net ([198.137.202.13]:56731 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759355Ab2CMHZC convert rfc822-to-8bit (ORCPT ); Tue, 13 Mar 2012 03:25:02 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: =46rom: Maciej =AFenczykowski Date: Tue, 13 Mar 2012 00:21:55 -0700 > If I understand correctly, you're suggesting to go with >=20 > return ((26468 >> (i+i)) & 3) - 1; >=20 > correct? Yes, at least for now.