Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp1815679imu; Thu, 24 Jan 2019 02:21:59 -0800 (PST) X-Google-Smtp-Source: ALg8bN46VZfTFHKMzKtKxK+ROjxonywIP70Vw2GsT5ELc6/UCbXhFrRMuDYTXdkq8VFmTNd23uGe X-Received: by 2002:a63:7f4f:: with SMTP id p15mr5437034pgn.296.1548325319344; Thu, 24 Jan 2019 02:21:59 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1548325319; cv=none; d=google.com; s=arc-20160816; b=dZ0VNvXJpxY0eifaT5paqTxyE5ZCcteep1zAvh2gZj7UnhGvld0TYxo4N+Iq19V/TB G5gBJH4BfpePscm+8FnM6qZepqw4d+ruq41Br1uSaMx27+qosKklBLy98GdA25eA+zoC q/Ipb7ULRBeVMB6ieBv9SZ6AAq0e1bRaJludiNXc8ekWAmqq4hqn7OvSUP1FzV8nEAHE LSKoQelZZC9rDh7gmf9NKWZVTb7wIYNlJIiQmKnlgEjwU2JrK0MMvTI7psIdcv0IGe8D LSuetRbnKzuU3HkEDckDtr3+iKRlYLWqUz/Wr+kfZ43oVFHbZOLJOMnzoupq+1O/NDT9 ue/Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=lM5Zd9yhNEhYgZunZq/PLs98LdSSF3o23zDucmSPpqk=; b=n3boNGtttPqixpq1ybu+Fe2kK7DCHxJszejmplwoor4D47zx8mDs+yrCcxBc8SFLxW wI4O7whtp++SOyPiuCMTdQHtYXMvDFx3QohzRPai2ayRXp3w8siJam/6FL+XYlyz0zx1 gAAsmiHzWlG8zan3mk5hQpvU3Y+I+neKa54etlsUsJqZKaYRItb5Umahvrxh/iN7pGlH FPC/5s0f+QsswddIrGX7AnF70p5mZypU5tE8kCjY1Pxi/6uMIoRBTTIYndFWjKEIAVie Q08FyDaSMT6OtbSPe/g37pwmYjdap82ndoCvAyfetVkMOXn+ss/Zx1SjFAvIER9cglbq O8qg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id j26si2808082pgl.537.2019.01.24.02.21.29; Thu, 24 Jan 2019 02:21:59 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727568AbfAXKVF (ORCPT + 99 others); Thu, 24 Jan 2019 05:21:05 -0500 Received: from orcrist.hmeau.com ([104.223.48.154]:40466 "EHLO deadmen.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726140AbfAXKVF (ORCPT ); Thu, 24 Jan 2019 05:21:05 -0500 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 1gmc85-0004Xp-7z; Thu, 24 Jan 2019 18:21:01 +0800 Received: from herbert by gondobar with local (Exim 4.89) (envelope-from ) id 1gmc82-0003jK-IS; Thu, 24 Jan 2019 18:20:58 +0800 Date: Thu, 24 Jan 2019 18:20:58 +0800 From: Herbert Xu To: Ard Biesheuvel Cc: Eric Biggers , "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" , Linux Kernel Mailing List , "Jason A . Donenfeld" Subject: Re: [RFC/RFT PATCH 00/15] crypto: improved skcipher, aead, and hash tests Message-ID: <20190124102058.sj5rvthiigovvhzp@gondor.apana.org.au> References: <20190123224926.250525-1-ebiggers@kernel.org> <20190124084818.GA650@sol.localdomain> <20190124092359.hvizqdi2ptjdsot7@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, Jan 24, 2019 at 11:16:23AM +0100, Ard Biesheuvel wrote: > > OK, so how many adjacent physical pages is a scatterlist entry > permitted to cover? Unbounded? Well the network stack is limited by packet size so it's less than 64K for practical purposes. However, the API itself doesn't specify a limit as such. Cheers, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt