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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A4499CA0FE9 for ; Tue, 26 Aug 2025 19:35:14 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D7C108E0102; Tue, 26 Aug 2025 15:35:13 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D2CB48E00FB; Tue, 26 Aug 2025 15:35:13 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C69B28E0102; Tue, 26 Aug 2025 15:35:13 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id B46558E00FB for ; Tue, 26 Aug 2025 15:35:13 -0400 (EDT) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 81A2613914B for ; Tue, 26 Aug 2025 19:35:13 +0000 (UTC) X-FDA: 83819912106.14.B6A28E5 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf04.hostedemail.com (Postfix) with ESMTP id BCE9940006 for ; Tue, 26 Aug 2025 19:35:11 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none); spf=pass (imf04.hostedemail.com: domain of cmarinas@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=cmarinas@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1756236912; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FrT6fWaydhPGhOboMRkcmdWPYPAgiXGPSbIYcSJKONM=; b=NQ9GteQVCQOUD1ESjtzl37f3AJxI1SKjn2pf27B/B7NFDyxqIUO/KtzBcn6WnUyNBURcLT tpTYyGEMijwUQM5QchAWAdAehZwfRUhgC50jQaQcmHawmTe4aGhiBaFYkHVssDioe3HAaQ B4JK6rUbbDcLQd7sUzUxsL6eLLJcbI8= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none); spf=pass (imf04.hostedemail.com: domain of cmarinas@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=cmarinas@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1756236912; a=rsa-sha256; cv=none; b=hW54CN8CmtgiJjg34eXTiw8CXMoURjOcpAbRKgDun+4RbhPkpAbOi/KvnWznkMY4wwuVrt Zuj1eivfl/CzpYjOs19/u+NcptioCzDMBWjXwWt3jJxs7jYwUuo3HSr6BPaJWNklLvxrQx VbvUsoOGdsjhyajv0Pj5z/lqFwf2yN8= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 68941437BD; Tue, 26 Aug 2025 19:35:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8D065C4CEF1; Tue, 26 Aug 2025 19:34:57 +0000 (UTC) Date: Tue, 26 Aug 2025 20:35:00 +0100 From: Catalin Marinas To: Maciej Wieczor-Retman Cc: sohil.mehta@intel.com, baohua@kernel.org, david@redhat.com, kbingham@kernel.org, weixugc@google.com, Liam.Howlett@oracle.com, alexandre.chartre@oracle.com, kas@kernel.org, mark.rutland@arm.com, trintaeoitogc@gmail.com, axelrasmussen@google.com, yuanchu@google.com, joey.gouly@arm.com, samitolvanen@google.com, joel.granados@kernel.org, graf@amazon.com, vincenzo.frascino@arm.com, kees@kernel.org, ardb@kernel.org, thiago.bauermann@linaro.org, glider@google.com, thuth@redhat.com, kuan-ying.lee@canonical.com, pasha.tatashin@soleen.com, nick.desaulniers+lkml@gmail.com, vbabka@suse.cz, kaleshsingh@google.com, justinstitt@google.com, alexander.shishkin@linux.intel.com, samuel.holland@sifive.com, dave.hansen@linux.intel.com, corbet@lwn.net, xin@zytor.com, dvyukov@google.com, tglx@linutronix.de, scott@os.amperecomputing.com, jason.andryuk@amd.com, morbo@google.com, nathan@kernel.org, lorenzo.stoakes@oracle.com, mingo@redhat.com, brgerst@gmail.com, kristina.martsenko@arm.com, bigeasy@linutronix.de, luto@kernel.org, jgross@suse.com, jpoimboe@kernel.org, urezki@gmail.com, mhocko@suse.com, ada.coupriediaz@arm.com, hpa@zytor.com, leitao@debian.org, peterz@infradead.org, wangkefeng.wang@huawei.com, surenb@google.com, ziy@nvidia.com, smostafa@google.com, ryabinin.a.a@gmail.com, ubizjak@gmail.com, jbohac@suse.cz, broonie@kernel.org, akpm@linux-foundation.org, guoweikang.kernel@gmail.com, rppt@kernel.org, pcc@google.com, jan.kiszka@siemens.com, nicolas.schier@linux.dev, will@kernel.org, andreyknvl@gmail.com, jhubbard@nvidia.com, bp@alien8.de, x86@kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, llvm@lists.linux.dev, linux-kbuild@vger.kernel.org, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v5 14/19] arm64: Unify software tag-based KASAN inline recovery path Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Stat-Signature: obdgpxqyyosjggqa591b1riefw5mjhxm X-Rspam-User: X-Rspamd-Queue-Id: BCE9940006 X-Rspamd-Server: rspam05 X-HE-Tag: 1756236911-912173 X-HE-Meta: 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 QxbGiC2d 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 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: List-Subscribe: List-Unsubscribe: On Mon, Aug 25, 2025 at 10:24:39PM +0200, Maciej Wieczor-Retman wrote: > To avoid having a copy of a long comment explaining the intricacies of > the inline KASAN recovery system and issues for every architecture that > uses the software tag-based mode, a unified kasan_inline_recover() > function was added. > > Use kasan_inline_recover() in the kasan brk handler to cleanup the long > comment, that's kept in the non-arch KASAN code. > > Signed-off-by: Maciej Wieczor-Retman Acked-by: Catalin Marinas