From nobody Sun Feb 8 09:37:14 2026 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 99CFAEB64D9 for ; Mon, 19 Jun 2023 10:12:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231678AbjFSKMm (ORCPT ); Mon, 19 Jun 2023 06:12:42 -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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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. =20 - 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. =20 --=20 2.17.1