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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 0D204C43460 for ; Sun, 11 Apr 2021 10:53:43 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A0017610CB for ; Sun, 11 Apr 2021 10:53:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A0017610CB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A096A6B0036; Sun, 11 Apr 2021 06:53:41 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9B69D6B006C; Sun, 11 Apr 2021 06:53:41 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 809216B006E; Sun, 11 Apr 2021 06:53:41 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0216.hostedemail.com [216.40.44.216]) by kanga.kvack.org (Postfix) with ESMTP id 61C9A6B0036 for ; Sun, 11 Apr 2021 06:53:41 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 1443318C9 for ; Sun, 11 Apr 2021 10:53:41 +0000 (UTC) X-FDA: 78019775442.12.CA0307E Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf21.hostedemail.com (Postfix) with ESMTP id 1EC24E000104 for ; Sun, 11 Apr 2021 10:53:39 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 05C5C60241; Sun, 11 Apr 2021 10:53:35 +0000 (UTC) Date: Sun, 11 Apr 2021 11:53:33 +0100 From: Catalin Marinas To: Andrew Morton 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: <20210411105332.GA23778@arm.com> References: <20210226012531.29231-1-walter-zh.wu@mediatek.com> <20210330223637.f3c73a78c64587e615d26766@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210330223637.f3c73a78c64587e615d26766@linux-foundation.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 1EC24E000104 X-Stat-Signature: i7w1rxr1j4by76r3rg7g5z3rmc8cgijn Received-SPF: none (kernel.org>: No applicable sender policy available) receiver=imf21; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: none/none X-HE-Tag: 1618138419-171754 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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. Thanks. -- Catalin