Received: by 2002:a05:6358:3188:b0:123:57c1:9b43 with SMTP id q8csp6174128rwd; Mon, 19 Jun 2023 03:34:39 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ5mrumsvleA7El2lzU27bMVRiod9J2WSqsPEkwOBLXYwm/nar8JELlQTLwKV2bwUBnHQmwL X-Received: by 2002:a17:902:d345:b0:1b1:95bc:a534 with SMTP id l5-20020a170902d34500b001b195bca534mr4770207plk.49.1687170878815; Mon, 19 Jun 2023 03:34:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1687170878; cv=none; d=google.com; s=arc-20160816; b=wnB2WL9LuJSTWuXCQNvUi5zYiT3oMeu830BimXViWMNnVCX200zCXeA+EDFRlJtV0C 3G/cxbTsLZ16uzwP4zhgPOcMs3Alx6mI26CAqXpNHN7YKnx/3yXvum6DrpBR6/3/+X0Z XGrJBlNTOC/RfZw6V10CpQXHrJ2ojb9fjSwhls7zUV+gSKdy85etmdkAbllwblKkSHGR +/tnlvWgSjKc042bjk5jtoqv5BARAK353sVTi+D35T9BxreU6Dk9ihvGNshZy7pNBgAH XfkbCcbs4Ns8tZOC9O1VSujlWM0umnRg1R5iKSufnAEaRlKnwy+6zIgoQ2IXPVqxP39v qg1w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:date:subject:cc:to:from; bh=dDL3HfnfFnFVUg7hlBOR/VHB5GPixD1jEBHXrBBxcNA=; b=poC09QxhS+rj6yin4U9ZtMkIMSvZgR0rrLwShrIs+nvjgprlNv2RdaFlwglfQ86dTQ kGEPjGOO/d0DtMrpJPyXC1tkCfFJLnoEEtobl3/bNphvS7EzAG8w8wsGv098LAjYD2K3 v1tIs81VpK9iMM+z1JygkIy1P1MXsPww5dDOKQQqyX54ffIF3MLdBewLSQAeb17BRLrr SEWx7VQqvlP05AZeAM5sK/f8tmp6QvdL5adOmBGYkwy3G0HS+6vbeqTi8d9Z+zl5lPTA euPbNNaJOdn32rqm1aO8nuRC00YWLHOUgLlzQMdj+0xIezT5auW4h5nELByWbc+KkfUK ipCA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id z10-20020a170903018a00b001a637615a89si21680241plg.561.2023.06.19.03.34.24; Mon, 19 Jun 2023 03:34:38 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231343AbjFSKMk (ORCPT + 99 others); Mon, 19 Jun 2023 06:12:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229818AbjFSKMf (ORCPT ); Mon, 19 Jun 2023 06:12:35 -0400 Received: from lgeamrelo11.lge.com (lgeamrelo12.lge.com [156.147.23.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 37FE412F for ; Mon, 19 Jun 2023 03:12:31 -0700 (PDT) Received: from unknown (HELO lgeamrelo01.lge.com) (156.147.1.125) by 156.147.23.52 with ESMTP; 19 Jun 2023 19:12:29 +0900 X-Original-SENDERIP: 156.147.1.125 X-Original-MAILFROM: chanho.min@lge.com Received: from unknown (HELO localhost.localdomain) (10.178.31.96) by 156.147.1.125 with ESMTP; 19 Jun 2023 19:12:29 +0900 X-Original-SENDERIP: 10.178.31.96 X-Original-MAILFROM: chanho.min@lge.com From: Chanho Min To: Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino Cc: elver@google.com, kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, gunho.lee@lge.com, Chanho Min Subject: [PATCH] kasan: fix mention for KASAN_HW_TAGS Date: Mon, 19 Jun 2023 19:12:24 +0900 Message-Id: <20230619101224.22978-1-chanho.min@lge.com> X-Mailer: git-send-email 2.17.1 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch removes description of the KASAN_HW_TAGS's memory consumption. KASAN_HW_TAGS does not set 1/32nd shadow memory. Signed-off-by: Chanho Min --- lib/Kconfig.kasan | 2 -- 1 file changed, 2 deletions(-) diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index fdca89c05745..5be1740234b9 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -124,8 +124,6 @@ config KASAN_HW_TAGS Supported only on arm64 CPUs starting from ARMv8.5 and relies on Memory Tagging Extension and Top Byte Ignore. - Consumes about 1/32nd of available memory. - May potentially introduce problems related to pointer casting and comparison, as it embeds a tag into the top byte of each pointer. -- 2.17.1