Return-path: Received: from ra.tuxdriver.com ([70.61.120.52]:4242 "EHLO ra.tuxdriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752472AbYAYUDh (ORCPT ); Fri, 25 Jan 2008 15:03:37 -0500 Date: Fri, 25 Jan 2008 14:50:37 -0500 From: "John W. Linville" To: Linus Torvalds Cc: Michael Buesch , Dan Williams , Johannes Berg , linux-wireless@vger.kernel.org Subject: Re: Linux 2.6.24-rc7 Message-ID: <20080125195037.GE14687@tuxdriver.com> (sfid-20080125_200355_477420_592DA354) References: <200801251930.27022.mb@bu3sch.de> <20080125194807.GD14687@tuxdriver.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20080125194807.GD14687@tuxdriver.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, Jan 25, 2008 at 02:48:07PM -0500, John W. Linville wrote: > http://kerneltrap.org/mailarchive/linux-netdev/2007/11/24/442496 > > Quoth Herbert Xu: > > "OK. Let me clarify this a bit more. We require at least one > of the following rules to be met: > > * the IPv4/IPv6 header is aligned by 8 bytes on reception; > * or the platform provides unaligned exception handlers. > (Hmmm..."aligned by 8 bytes", so our warning and my iwlwifi patch > may still not be right...) http://kerneltrap.org/mailarchive/linux-netdev/2007/11/25/443558 More from Herbert: "Sorry I was wrong about the 8 bytes requirement. Although the IPv6 protocol does try to maintain an 8-byte alignment the Linux stack never does anything that requires that. So 4 bytes is enough." Phew! John -- John W. Linville linville@tuxdriver.com