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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS autolearn=ham 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 EA75EC43387 for ; Mon, 14 Jan 2019 10:12:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C374820659 for ; Mon, 14 Jan 2019 10:12:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726565AbfANKMN (ORCPT ); Mon, 14 Jan 2019 05:12:13 -0500 Received: from ozlabs.org ([203.11.71.1]:51363 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726187AbfANKMN (ORCPT ); Mon, 14 Jan 2019 05:12:13 -0500 Received: by ozlabs.org (Postfix, from userid 1034) id 43dTmB6lM1z9sD9; Mon, 14 Jan 2019 21:12:10 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: fb0bdec51a4901b7dd088de0a1e365e1b9f5cd21 X-Patchwork-Hint: ignore In-Reply-To: <9b1d38ef4c4d26f9ef9b6a69a37949a4eee722df.1547025153.git.christophe.leroy@c-s.fr> To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras From: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: powerpc/8xx: fix setting of pagetable for Abatron BDI debug tool. Message-Id: <43dTmB6lM1z9sD9@ozlabs.org> Date: Mon, 14 Jan 2019 21:12:10 +1100 (AEDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2019-01-09 at 20:30:07 UTC, Christophe Leroy wrote: > Commit 8c8c10b90d88 ("powerpc/8xx: fix handling of early NULL pointer > dereference") moved the loading of r6 earlier in the code. As some > functions are called inbetween, r6 needs to be loaded again with the > address of swapper_pg_dir in order to set PTE pointers for > the Abatron BDI. > > Fixes: 8c8c10b90d88 ("powerpc/8xx: fix handling of early NULL pointer dereference") > Signed-off-by: Christophe Leroy Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/fb0bdec51a4901b7dd088de0a1e365e1 cheers