From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 488D3C28D1B for ; Thu, 6 Jun 2019 07:15:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 207FB20874 for ; Thu, 6 Jun 2019 07:15:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726685AbfFFHP5 (ORCPT ); Thu, 6 Jun 2019 03:15:57 -0400 Received: from helcar.hmeau.com ([216.24.177.18]:40344 "EHLO deadmen.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725267AbfFFHP5 (ORCPT ); Thu, 6 Jun 2019 03:15:57 -0400 Received: from gondobar.mordor.me.apana.org.au ([192.168.128.4] helo=gondobar) by deadmen.hmeau.com with esmtps (Exim 4.89 #2 (Debian)) id 1hYmcq-0007Nm-Dd; Thu, 06 Jun 2019 15:15:52 +0800 Received: from herbert by gondobar with local (Exim 4.89) (envelope-from ) id 1hYmcm-0006rO-E9; Thu, 06 Jun 2019 15:15:48 +0800 Date: Thu, 6 Jun 2019 15:15:48 +0800 From: Herbert Xu To: Horia Geanta Cc: Ard Biesheuvel , Iuliana Prodan , Eric Biggers , "David S. Miller" , Sascha Hauer , "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" , Linux Kernel Mailing List , dl-linux-imx Subject: Re: [PATCH] crypto: gcm - fix cacheline sharing Message-ID: <20190606071548.5dacz7dnpt2lyrtv@gondor.apana.org.au> References: <20190530142734.qlhgzeal22zxfhk5@gondor.apana.org.au> <20190606063724.n77z7gaf32tmyxng@gondor.apana.org.au> <20190606064603.lvde6dproqi3vwcq@gondor.apana.org.au> <20190606065757.4agqd4poer4rexri@gondor.apana.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 06, 2019 at 07:10:06AM +0000, Horia Geanta wrote: > > Not really. > I am in favor of using the HW to update the IV, which would work for all > skcipher algorithms. > I have the fix ready, will send it in a couple of days. OK that would be interesting to see. But I presume you are still going to do a copy after the DMA unmap since you can't do DMA to req->iv? Cheers, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt