From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from rhun.apana.org.au ([64.62.148.172]:56567 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751045AbYEDM5G (ORCPT ); Sun, 4 May 2008 08:57:06 -0400 Date: Sun, 4 May 2008 20:56:52 +0800 From: Herbert Xu To: Johannes Berg Cc: David Miller , mb@bu3sch.de, netdev@vger.kernel.org, linux-wireless@vger.kernel.org Subject: Re: mac80211 truesize bugs Message-ID: <20080504125652.GA1618@gondor.apana.org.au> (sfid-20080504_145634_021948_BA1F36DE) References: <1209867740.6210.46.camel@johannes.berg> <20080504031652.GA30993@gondor.apana.org.au> <1209890847.6210.51.camel@johannes.berg> <1209892489.6210.56.camel@johannes.berg> <20080504094444.GA541@gondor.apana.org.au> <1209894754.6210.58.camel@johannes.berg> <1209900355.6210.64.camel@johannes.berg> <1209904088.4065.11.camel@johannes.berg> <20080504124542.GA1455@gondor.apana.org.au> <1209905561.4065.23.camel@johannes.berg> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1209905561.4065.23.camel@johannes.berg> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sun, May 04, 2008 at 02:52:41PM +0200, Johannes Berg wrote: > > > have no cache at all, > > That wouldn't be good either I think since we can actually use the > ethernet header quite well. Actually this is not as bad as it sounds. Since you're constructing the hardware header anyway, it may turn out to be easier to tack on the Ethernet header while you're at it. Please note that the hardware cache is not the same as the neighbour cache. Just because you lose the hardware cache doesn't mean that you'd lose the neighbour (ARP) cache. However, this would mean that you'd no longer have an Ethernet device which is both good and bad. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt