From patchwork Thu Sep 24 22:50:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Konovalov X-Patchwork-Id: 11798381 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 49B38139A for ; Thu, 24 Sep 2020 22:53:02 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1088423899 for ; Thu, 24 Sep 2020 22:53:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="F4vPpiZf"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="Tq4lK60X" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1088423899 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:To:From:Subject:References:Mime-Version:Message-Id: In-Reply-To:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=CPhhHjXOi8AbFow5re63Qgtn8iO2u40x64MCEJuQmvA=; b=F4vPpiZfSr5+0Id5IDGnvRNdG vLmWOvZJLQrr9TAJex1AbM687SxqKeZ29zLO3krFLuMEeZfaa0erXbNCPbabrfv3mO/RuOmIewlKf cdY2GCBI/HN9wVZgBQw1qjRvOhmZKzzidl94TcxCWFNH+ETXPRGb63DbDbfybEWb9ZyOq9LWr6mWd biCbX0VUrI1WWcwcM1gfIrBX/9VBNgOq84FraKtgYApjh2OYwblE49DRYD+cOxRnoWSB2yAvevys5 VErSccSxxP4JLGOrCdI5j4CvOvyVxQZBCIVHWU7rRGTKJW23yYE7Tp/od+Zh2LLttawBLgeUUJBd/ a0FdE42Cw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kLa6Z-0002pr-5N; Thu, 24 Sep 2020 22:52:47 +0000 Received: from mail-qv1-xf49.google.com ([2607:f8b0:4864:20::f49]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kLa51-00027o-5g for linux-arm-kernel@lists.infradead.org; Thu, 24 Sep 2020 22:51:13 +0000 Received: by mail-qv1-xf49.google.com with SMTP id f4so471087qvw.15 for ; Thu, 24 Sep 2020 15:51:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=DufyUr3VDNtonx2hPCICVW4qjhSQO8Lbag8i7ReKhm4=; b=Tq4lK60XhwA6r8z47xs6/tLjMiMq7uXH5zEunwC8TmFzV8zfRbxWDfB1h+rOkoMLrc LUS+VVJIIHLY6D5jUOyUJ+ao1/EHV7xpjxkZGAWXm/u4vxHKqVqMp0VLEwa4DR1hQJLg 0lCVM0kusPwJSaN6PONOBuGteQx7fmR0pWPYBctv9qz/0PZFRS0V6bCvMdjFeQE4uWHW tO/b1AQeST4/Rc1YrywyMqTlGSN/8Aij7Odg9xsUm2paG1o9mcKWgVyFiOs6o9D6UTX1 R5fM7J4e/dmSfHMn4ItsRrueiiqIYeTHrziuFeIYL6GfY0OAgyOXWp7fk+fFetKnGcnB DBkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=DufyUr3VDNtonx2hPCICVW4qjhSQO8Lbag8i7ReKhm4=; b=kq4kNKkGtg/aXZDjFyx1/GPpGEtJfde34WHlvwZJPuNtMzJHELkLdzfLvyOgMN5/By NTh/PPKw3JCMQA9MLtUcgArU7JGE2DZgRdsqtUNZsKz8Q1nOYeXBPSKvx814EmdzY9pH j3EuHGmW0TK6aw1HV8OQjGp+U16ipyH798Uhg4ESzJy7NE/bkiXTZhinC1BLE/1uIyX+ jM5G8sEK1ZzG881oe+y3t1BT0Eq4WrPtOMwi8pJdXWZG8V+Kvq8mEE3NJMvHposKXltO lh6kO5cc4AcxahM2hHB+Uwpxn3b8dVXPSqWJo2WRoUFXLAcCxnUEwLmsml5lqD6TNYCL neLw== X-Gm-Message-State: AOAM533gjyOFX4vFku6qExX/8uQ9F3XDFj52GYRr7nDX7YhouCXYJOJN WFwyVnW9+Xdk/nxvIurknp4o5qChc3weGZpF X-Google-Smtp-Source: ABdhPJyuSGecUOKg6Byl2rnxjDbt0du65/xn34f+JJEjgJqwxbZi16nIfFWRik6igwBkqq/Lgtj83xgKTLhfxDPy X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:7220:84ff:fe09:7e9d]) (user=andreyknvl job=sendgmr) by 2002:ad4:500c:: with SMTP id s12mr1591817qvo.7.1600987868036; Thu, 24 Sep 2020 15:51:08 -0700 (PDT) Date: Fri, 25 Sep 2020 00:50:14 +0200 In-Reply-To: Message-Id: <3ecf44f226dac37eb35409dc78568a99343fbf9e.1600987622.git.andreyknvl@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.28.0.681.g6f77f65b4e-goog Subject: [PATCH v3 07/39] kasan: only build init.c for software modes From: Andrey Konovalov To: Dmitry Vyukov , Vincenzo Frascino , Catalin Marinas , kasan-dev@googlegroups.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200924_185111_331335_B7A92E8F X-CRM114-Status: GOOD ( 14.05 ) X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-7.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:f49 listed in] [list.dnswl.org] -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_MED DKIMwl.org - Medium trust sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marco Elver , Elena Petrova , Andrey Konovalov , Kevin Brodsky , Will Deacon , Branislav Rankov , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko , linux-arm-kernel@lists.infradead.org, Andrey Ryabinin , Andrew Morton , Evgenii Stepanov Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This is a preparatory commit for the upcoming addition of a new hardware tag-based (MTE-based) KASAN mode. The new mode won't be using shadow memory, so only build init.c that contains shadow initialization code for software modes. No functional changes for software modes. Signed-off-by: Andrey Konovalov Signed-off-by: Vincenzo Frascino Reviewed-by: Marco Elver --- Change-Id: I8d68c47345afc1dbedadde738f34a874dcae5080 --- mm/kasan/Makefile | 6 +++--- mm/kasan/init.c | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile index 370d970e5ab5..7cf685bb51bd 100644 --- a/mm/kasan/Makefile +++ b/mm/kasan/Makefile @@ -29,6 +29,6 @@ CFLAGS_report.o := $(CC_FLAGS_KASAN_RUNTIME) CFLAGS_tags.o := $(CC_FLAGS_KASAN_RUNTIME) CFLAGS_tags_report.o := $(CC_FLAGS_KASAN_RUNTIME) -obj-$(CONFIG_KASAN) := common.o init.o report.o -obj-$(CONFIG_KASAN_GENERIC) += generic.o generic_report.o quarantine.o -obj-$(CONFIG_KASAN_SW_TAGS) += tags.o tags_report.o +obj-$(CONFIG_KASAN) := common.o report.o +obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o generic_report.o quarantine.o +obj-$(CONFIG_KASAN_SW_TAGS) += init.o tags.o tags_report.o diff --git a/mm/kasan/init.c b/mm/kasan/init.c index dfddd6c39fe6..1a71eaa8c5f9 100644 --- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 /* - * This file contains some kasan initialization code. + * This file contains KASAN shadow initialization code. * * Copyright (c) 2015 Samsung Electronics Co., Ltd. * Author: Andrey Ryabinin