From patchwork Fri Mar 30 19:33:34 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Salisbury X-Patchwork-Id: 893482 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=canonical.com Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) by ozlabs.org (Postfix) with ESMTP id 40CWy119XMz9s3G; Sat, 31 Mar 2018 06:33:45 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1f1zmM-0007Of-If; Fri, 30 Mar 2018 19:33:38 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.86_2) (envelope-from ) id 1f1zmK-0007OH-Mo for kernel-team@lists.ubuntu.com; Fri, 30 Mar 2018 19:33:36 +0000 Received: from 1.general.jsalisbury.us.vpn ([10.172.67.212] helo=salisbury) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1f1zmK-0002WT-C9 for kernel-team@lists.ubuntu.com; Fri, 30 Mar 2018 19:33:36 +0000 Received: by salisbury (Postfix, from userid 1000) id 218B87E2605; Fri, 30 Mar 2018 15:33:35 -0400 (EDT) From: Joseph Salisbury To: kernel-team@lists.ubuntu.com Subject: [SRU][Artful][Bionic][PATCH 0/1] powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features Date: Fri, 30 Mar 2018 15:33:34 -0400 Message-Id: X-Mailer: git-send-email 2.7.4 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: http://bugs.launchpad.net/bugs/1759312 == SRU Justification == AT_BASE_PLATFORM in AIXV is not exported to userspace on P9 baremetal machines causing trouble to userspace tools and software that rely on that information, notably operf and opreport (from oprofile 1.2.0+) will refuse to run without that information. This bug is fixed by commit e4b79900222b, which is in linux-next and just landed in mainline, but is not contained in any release as of yet. == Fix == e4b79900222b ("powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features") == Regression Potential == Low. Limited to powerpc. == Test Case == A test kernel was built with this patch and tested by the original bug reporter. The bug reporter states the test kernel resolved the bug. Michael Ellerman (1): powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features arch/powerpc/kernel/dt_cpu_ftrs.c | 3 +++ 1 file changed, 3 insertions(+) Acked-by: Seth Forshee