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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no 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 A607BC282DD for ; Tue, 7 Jan 2020 20:44:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8424D2072A for ; Tue, 7 Jan 2020 20:44:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727176AbgAGUof (ORCPT ); Tue, 7 Jan 2020 15:44:35 -0500 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:32798 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726530AbgAGUof (ORCPT ); Tue, 7 Jan 2020 15:44:35 -0500 Received: from callcc.thunk.org (guestnat-104-133-0-111.corp.google.com [104.133.0.111] (may be forged)) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 007KhWbG017294 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 7 Jan 2020 15:43:33 -0500 Received: by callcc.thunk.org (Postfix, from userid 15806) id 5B18D4207DF; Tue, 7 Jan 2020 15:43:32 -0500 (EST) Date: Tue, 7 Jan 2020 15:43:32 -0500 From: "Theodore Y. Ts'o" To: Andy Lutomirski Cc: LKML , Linux API , Kees Cook , "Jason A. Donenfeld" , "Ahmed S. Darwish" , Lennart Poettering , "Eric W. Biederman" , "Alexander E. Patrakov" , Michael Kerrisk , Willy Tarreau , Matthew Garrett , Ext4 Developers List , linux-man , Stephan Mueller Subject: Re: [PATCH v3 2/8] random: Add a urandom_read_nowait() for random APIs that don't warn Message-ID: <20200107204332.GG3619@mit.edu> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Mon, Dec 23, 2019 at 12:20:45AM -0800, Andy Lutomirski wrote: > /dev/random and getrandom() never warn. Split the meat of > urandom_read() into urandom_read_nowarn() and leave the warning code > in urandom_read(). > > This has no effect on kernel behavior, but it makes subsequent > patches more straightforward. It also makes the fact that > getrandom() never warns more obvious. > > Signed-off-by: Andy Lutomirski Applied, thanks. - Ted