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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C322DC32771 for ; Fri, 19 Aug 2022 15:53:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350562AbiHSPxf (ORCPT ); Fri, 19 Aug 2022 11:53:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350110AbiHSPwq (ORCPT ); Fri, 19 Aug 2022 11:52:46 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F350A4F184; Fri, 19 Aug 2022 08:48:38 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 6D400B8280F; Fri, 19 Aug 2022 15:48:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3727C433C1; Fri, 19 Aug 2022 15:48:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660924114; bh=3C0nmz2bwUw/YhMXl/4vqecM80SkN232zvqvmAcwXbw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hCSzly/tiefSp6BX7P6jg8Yt7M1tRFJ5BeGaUGABD0jrWsgZy4wzBHDNDDaKLA86B ui7gal/arbFcyTgllD1enJnBMU/OVS6POX0OP1yfdd+ddGqeSQfrTy1CdVk4a3zkGN Z7lHve8RMpr/38RMGlVdg1eFuyHzyYm4/cz8rIVM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe Leroy , Michael Ellerman Subject: [PATCH 5.10 061/545] powerpc/ptdump: Fix display of RW pages on FSL_BOOK3E Date: Fri, 19 Aug 2022 17:37:11 +0200 Message-Id: <20220819153831.964262412@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220819153829.135562864@linuxfoundation.org> References: <20220819153829.135562864@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christophe Leroy commit dd8de84b57b02ba9c1fe530a6d916c0853f136bd upstream. On FSL_BOOK3E, _PAGE_RW is defined with two bits, one for user and one for supervisor. As soon as one of the two bits is set, the page has to be display as RW. But the way it is implemented today requires both bits to be set in order to display it as RW. Instead of display RW when _PAGE_RW bits are set and R otherwise, reverse the logic and display R when _PAGE_RW bits are all 0 and RW otherwise. This change has no impact on other platforms as _PAGE_RW is a single bit on all of them. Fixes: 8eb07b187000 ("powerpc/mm: Dump linux pagetables") Cc: stable@vger.kernel.org Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/0c33b96317811edf691e81698aaee8fa45ec3449.1656427391.git.christophe.leroy@csgroup.eu Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/mm/ptdump/shared.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/arch/powerpc/mm/ptdump/shared.c +++ b/arch/powerpc/mm/ptdump/shared.c @@ -17,9 +17,9 @@ static const struct flag_info flag_array .clear = " ", }, { .mask = _PAGE_RW, - .val = _PAGE_RW, - .set = "rw", - .clear = "r ", + .val = 0, + .set = "r ", + .clear = "rw", }, { .mask = _PAGE_EXEC, .val = _PAGE_EXEC,