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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 93313C433B4 for ; Sun, 11 Apr 2021 22:03:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 38EDB610E9 for ; Sun, 11 Apr 2021 22:03:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235717AbhDKWDh (ORCPT ); Sun, 11 Apr 2021 18:03:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:56252 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235284AbhDKWDg (ORCPT ); Sun, 11 Apr 2021 18:03:36 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id CE6AD610CB; Sun, 11 Apr 2021 22:03:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1618178599; bh=xr7Bko3nkY/hQzyR34sArUT+yy4zsjhEp/ERlDlaFfw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=ASNK5lYWJnV08hEwZiPrc6I7AoSedfw99O8NVwSHpYtW/sKTUrJtRS1uIZR9R6wnF t038iXV/UBzK/JbJ/OAtnesctxvwAQ68TpuPYGu1G2sQbDxkDAosgxxY6G+aspKiwD d9vdXulvY0qHJo7ky7gEeulX+VJurJteIqXR1/1w= Date: Sun, 11 Apr 2021 15:03:16 -0700 From: Andrew Morton To: Catalin Marinas Cc: Andrey Konovalov , Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov , Nathan Chancellor , Arnd Bergmann , kasan-dev , Linux Memory Management List , LKML , Linux ARM , wsd_upstream , "moderated list:ARM/Mediatek SoC..." , Walter Wu Subject: Re: [PATCH v4] kasan: remove redundant config option Message-Id: <20210411150316.d60aa0b5174adf2370538809@linux-foundation.org> In-Reply-To: <20210411105332.GA23778@arm.com> References: <20210226012531.29231-1-walter-zh.wu@mediatek.com> <20210330223637.f3c73a78c64587e615d26766@linux-foundation.org> <20210411105332.GA23778@arm.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 11 Apr 2021 11:53:33 +0100 Catalin Marinas wrote: > Hi Andrew, > > On Tue, Mar 30, 2021 at 10:36:37PM -0700, Andrew Morton wrote: > > On Mon, 29 Mar 2021 16:54:26 +0200 Andrey Konovalov wrote: > > > Looks like my patch "kasan: fix KASAN_STACK dependency for HW_TAGS" > > > that was merged into 5.12-rc causes a build time warning: > > > > > > include/linux/kasan.h:333:30: warning: 'CONFIG_KASAN_STACK' is not > > > defined, evaluates to 0 [-Wundef] > > > #if defined(CONFIG_KASAN) && CONFIG_KASAN_STACK > > > > > > The fix for it would either be reverting the patch (which would leave > > > the initial issue unfixed) or applying this "kasan: remove redundant > > > config option" patch. > > > > > > Would it be possible to send this patch (with the fix-up you have in > > > mm) for the next 5.12-rc? > > > > > > Here are the required tags: > > > > > > Fixes: d9b571c885a8 ("kasan: fix KASAN_STACK dependency for HW_TAGS") > > > Cc: stable@vger.kernel.org > > > > Got it, thanks. I updated the changelog to mention the warning fix and > > moved these ahead for a -rc merge. > > Is there a chance this patch makes it into 5.12? I still get the warning > with the latest Linus' tree (v5.12-rc6-408-g52e44129fba5) when enabling > KASAN_HW_TAGS. Trying. We're still awaiting a tested fix for https://lkml.kernel.org/r/CA+fCnZf1ABrQg0dsxtoZa9zM1BSbLYq_Xbu+xi9cv8WAZxdC2g@mail.gmail.com