From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from terminus.zytor.com ([198.137.202.10]:35802 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755055AbXK3A3C (ORCPT ); Thu, 29 Nov 2007 19:29:02 -0500 Message-ID: <474F5932.1030103@zytor.com> (sfid-20071130_002908_623555_6EDE06F5) Date: Thu, 29 Nov 2007 16:28:34 -0800 From: "H. Peter Anvin" MIME-Version: 1.0 To: Herbert Xu CC: Stephen Hemminger , Johannes Berg , dsd@gentoo.org, davem@davemloft.net, netdev@vger.kernel.org, linux-wireless@vger.kernel.org Subject: Re: wireless vs. alignment requirements References: <1195893216.4149.186.camel@johannes.berg> <20071124133200.GA27531@gondor.apana.org.au> <1195912176.4149.194.camel@johannes.berg> <20071124141319.GA27819@gondor.apana.org.au> <4748855C.5090103@linux-foundation.org> <474C50D7.5010901@zytor.com> <20071129131107.GC8487@gondor.apana.org.au> <474EFBEB.5000804@zytor.com> <20071130002621.GI23769@gondor.apana.org.au> In-Reply-To: <20071130002621.GI23769@gondor.apana.org.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Herbert Xu wrote: > On Thu, Nov 29, 2007 at 09:50:35AM -0800, H. Peter Anvin wrote: >> Uhm, most cards affected *ARE* Ethernet cards, due to the bloody 14-byte >> header. > > Well most Ethernet drivers are using NET_IP_ALIGN which means that IP > stack gets aligned packets only. > > sky2 is the exception here, not the rule. > It is, but it's not unique. Several USB adapters have the same problem, for example. -hpa