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=-7.8 required=3.0 tests=DATE_IN_PAST_06_12, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_PASS autolearn=unavailable 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 23BB2C43387 for ; Sat, 22 Dec 2018 17:02:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EC86D2075B for ; Sat, 22 Dec 2018 17:02:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392529AbeLVRCV (ORCPT ); Sat, 22 Dec 2018 12:02:21 -0500 Received: from ozlabs.org ([203.11.71.1]:33249 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388900AbeLVRBC (ORCPT ); Sat, 22 Dec 2018 12:01:02 -0500 Received: by ozlabs.org (Postfix, from userid 1034) id 43MLSl3qq5z9sPD; Sat, 22 Dec 2018 20:54:47 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 49a502ea23bf9dec47f8f3c3960909ff409cd1bb X-Patchwork-Hint: ignore In-Reply-To: <46e2533084dc3255a1d67553b682bd4b9642b176.1544800765.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: [v2] powerpc/mm: make NULL pointer deferences explicit on bad page faults. Message-Id: <43MLSl3qq5z9sPD@ozlabs.org> Date: Sat, 22 Dec 2018 20:54:47 +1100 (AEDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2018-12-14 at 15:23:33 UTC, Christophe Leroy wrote: > As several other arches including x86, this patch makes it explicit > that a bad page fault is a NULL pointer dereference when the fault > address is lower than PAGE_SIZE > > In the mean time, this page makes all bad_page_fault() messages shorter > so that they remain on one single line. And it prefixes them by "BUG: " > so that they get easily greped. > > Signed-off-by: Christophe Leroy Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/49a502ea23bf9dec47f8f3c3960909 cheers