Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp5224197yba; Mon, 13 May 2019 07:25:04 -0700 (PDT) X-Google-Smtp-Source: APXvYqzUF8JBwDNdYaNCR3VKjufQe9qMgP6i0NyVGQEkXZG0AHc8ChWqPqblzUcctEcMUZcL98Nx X-Received: by 2002:a63:4006:: with SMTP id n6mr31726984pga.424.1557757503856; Mon, 13 May 2019 07:25:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557757503; cv=none; d=google.com; s=arc-20160816; b=bP8G32Y8patU3dPjMr+7Pb1UBLReUSQvSpceOKF9xC82jFEf9xypbvv4GvFEGnNzDh zVoCTENWoYAqs0li46VefdwhXxpJuNudFOCG8VHLvI0A8oidXGF3SQo+8HqRLjADU+zW XLrmHbrUGyNCKruWQNkQnSIBqejarOaFPvAK1wgPcQXk8VV7p3b/hyXnXJwBQEqbK5wF SlSlWnoR26gOjnzT08r/HH16c0Zq7PX/igaVE0su3kq9mRSYpwn6jng8JELaSlATAEsh MH+YuORJnFiyVWKfXLM3RWvaFtXlFv6Ep/MLh1EDFZfHtXVW50omt8Uo4zhB1vsX8+pE Uf+g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date; bh=kJeU6Xp8/sZ/aFAzvNK8vThuPUPC65x5ha9XofaDmQ0=; b=IR9M1aYDMdQ7azNwfQd3fXV1XO4v0XpArFc4ifiWkLeRrTgZJYFq4tX66sRUu3YJvW k6QcMRca7UlYxCMuOYmtqiBIFqn8hvno/I8iVhNRQbekWHpfY3way2ZkpfuDggJFTjOD A5ySNqb8YlUKSxa6RiYgE4b0WXCMEmyfpZAK5YhNP7gqfaCDlpI8pIJ8Igf8ewd2aWS1 cfVKJuovUJzOcky8j9YnzoTIRGxMGKT1ALkI1JmXPVK0yJk4QTNAN3ToXcxHMo/eDiD9 nqVFX3w1//vwgPT7AkVZqf0AMwlLNyO+rKap5TdysDXuxJJUsAPqzJWglkduCYPhFk5T W8bA== 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 36si17546811pgw.281.2019.05.13.07.24.47; Mon, 13 May 2019 07:25:03 -0700 (PDT) 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 S1730033AbfEMOPy (ORCPT + 99 others); Mon, 13 May 2019 10:15:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:45072 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729340AbfEMOPy (ORCPT ); Mon, 13 May 2019 10:15:54 -0400 Received: from oasis.local.home (unknown [12.174.139.122]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4136C20862; Mon, 13 May 2019 14:15:52 +0000 (UTC) Date: Mon, 13 May 2019 10:15:50 -0400 From: Steven Rostedt To: Petr Mladek Cc: Andy Shevchenko , David Laight , 'christophe leroy' , Linus Torvalds , Rasmus Villemoes , "Tobin C . Harding" , Michal Hocko , Sergey Senozhatsky , Sergey Senozhatsky , "linux-kernel@vger.kernel.org" , Michael Ellerman , "linuxppc-dev@lists.ozlabs.org" , Russell Currey , Stephen Rothwell , Heiko Carstens , "linux-arch@vger.kernel.org" , "linux-s390@vger.kernel.org" , Martin Schwidefsky Subject: Re: [PATCH] vsprintf: Do not break early boot with probing addresses Message-ID: <20190513101550.736fb5f6@oasis.local.home> In-Reply-To: <20190513124220.wty2qbnz4wo52h3x@pathway.suse.cz> References: <20190510081635.GA4533@jagdpanzerIV> <20190510084213.22149-1-pmladek@suse.com> <20190510122401.21a598f6@gandalf.local.home> <096d6c9c17b3484484d9d9d3f3aa3a7c@AcuMS.aculab.com> <20190513091320.GK9224@smile.fi.intel.com> <20190513124220.wty2qbnz4wo52h3x@pathway.suse.cz> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 13 May 2019 14:42:20 +0200 Petr Mladek wrote: > > The "(null)" is good enough by itself and already an established > > practice.. > > (efault) made more sense with the probe_kernel_read() that > checked wide range of addresses. Well, I still think that > it makes sense to distinguish a pure NULL. And it still > used also for IS_ERR_VALUE(). Why not just "(fault)"? That is self descriptive enough. -- Steve