From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sowmini Varadhan Subject: Re: [PATCH net-next] net/vxlan: Avoid unaligned access in vxlan_build_skb() Date: Thu, 22 Sep 2016 17:30:10 -0400 Message-ID: <20160922213010.GA32052@oracle.com> References: <20160920163108.GP8920@oracle.com> <20160920184333.17444823@griffin> <20160920190929.57ddaeb0@griffin> <20160922.015242.735026657310158125.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: jbenc@redhat.com, netdev@vger.kernel.org, hannes@stressinduktion.org, aduyck@mirantis.com, daniel@iogearbox.net, pabeni@redhat.com To: David Miller Return-path: Received: from aserp1040.oracle.com ([141.146.126.69]:20065 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933339AbcIVVaj (ORCPT ); Thu, 22 Sep 2016 17:30:39 -0400 Content-Disposition: inline In-Reply-To: <20160922.015242.735026657310158125.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On (09/22/16 01:52), David Miller wrote: > Alternatively we can do Alexander Duyck's trick, by pushing > the headers into the frag list, forcing a pull and realignment > by the next protocol layer. What is the "Alexander Duyck trick" (hints about module or commit id, where this can be found, please)? Is this basically about, e.g., putting the vxlanhdr in its own skb_frag_t, or something else? --Sowmini