From patchwork Mon Feb 8 19:30:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Ghiti X-Patchwork-Id: 12076367 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=-17.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 8B7EFC433DB for ; Mon, 8 Feb 2021 19:32:42 +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 17C8F64E85 for ; Mon, 8 Feb 2021 19:32:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 17C8F64E85 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ghiti.fr Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.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:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=EaO4GT0oPZp1ag+4uIQD7JAjvHUSp8hzuUyUn+6nhRg=; b=KbLdSFnup+WUQnIVhcgZKoGIG OP9mgdKFGcU30msI/w0xFWQhbDbqp77/x6AN/GuAED0Tk/lBlYtvETb2X1owEdoCt0Grl7B1bMp7q JnUUn4cf1Bre+Mlg/wLujf+CxwoS9gIb3uTr9e9ZlSei9glglCqtZOo2IrHVUIOP1p9Ncp4SLJZIw ldntNm1YZhc/wGOBMoeS/GZGnO4IIpkhzd9VOj9Hkpj8NCB32xqf+F/NmReUA4jneFNxifAS19om8 1o6dT0yVdnpf/2074G/LN1LvcY5No7m7b1Y8F9bry6zmMwO5JOfyKllyK9SQM7DgUjoZJI18sC4qq AHZkSjewA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9CGw-0007GO-AA; Mon, 08 Feb 2021 19:32:34 +0000 Received: from relay7-d.mail.gandi.net ([217.70.183.200]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9CGu-0007FZ-5T for linux-riscv@lists.infradead.org; Mon, 08 Feb 2021 19:32:32 +0000 X-Originating-IP: 2.7.49.219 Received: from debian.home (lfbn-lyo-1-457-219.w2-7.abo.wanadoo.fr [2.7.49.219]) (Authenticated sender: alex@ghiti.fr) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id 287DA20003; Mon, 8 Feb 2021 19:32:28 +0000 (UTC) From: Alexandre Ghiti To: Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov , Paul Walmsley , Palmer Dabbelt , Albert Ou , kasan-dev@googlegroups.com, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization Date: Mon, 8 Feb 2021 14:30:15 -0500 Message-Id: <20210208193017.30904-3-alex@ghiti.fr> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210208193017.30904-1-alex@ghiti.fr> References: <20210208193017.30904-1-alex@ghiti.fr> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210208_143232_298908_429A8C02 X-CRM114-Status: GOOD ( 10.40 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexandre Ghiti Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Instead of hardcoding memory initialization to 0, use KASAN_SHADOW_INIT. Signed-off-by: Alexandre Ghiti --- arch/riscv/mm/kasan_init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c index a8a2ffd9114a..7bbe09416a2e 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -80,7 +80,7 @@ static void __init populate(void *start, void *end) __pgprot(_PAGE_TABLE))); local_flush_tlb_all(); - memset(start, 0, end - start); + memset(start, KASAN_SHADOW_INIT, end - start); } void __init kasan_init(void) @@ -108,6 +108,6 @@ void __init kasan_init(void) __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_ACCESSED))); - memset(kasan_early_shadow_page, 0, PAGE_SIZE); + memset(kasan_early_shadow_page, KASAN_SHADOW_INIT, PAGE_SIZE); init_task.kasan_depth = 0; }