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 X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 1038EC3A59E for ; Mon, 26 Aug 2019 07:56:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D777B20874 for ; Mon, 26 Aug 2019 07:56:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="G0+oT2Pa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730314AbfHZH4I (ORCPT ); Mon, 26 Aug 2019 03:56:08 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:35478 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730158AbfHZH4G (ORCPT ); Mon, 26 Aug 2019 03:56:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=hhiNoxKjCI8nT49u+qf790ohd996JXNqbLa05LV6Nos=; b=G0+oT2PanN22sUCfOGI/q+U9H3 GBKlbZnzyxgT7KDeWA/aSiauu8TmRAQHcs7sPeaWKyWlSkXZwBOg2RuEQ5Xu43taGLPV4BH2HopD+ BD+IrFbVdU+SC3GPBD8uWTny8wOrOE/InMf+KnhABmbMCzlHRGyC6eNaerwErkfi9pqPLPHmIrRYj 9jyKJtFoj2VMrRd1vpuzEw8pfG2Dt9IUJAU/Fkk14+tHTXW8ht9hb5Edg2FwnJX1EuvyNacaHnwX6 RUhngtHQTWQLYVwos2Z8my+tMI9Us4XpiHPW5yDZgfR6M+e++ec/vUG9SeI2lMCPTsULICGz2bDpe B48EwffA==; Received: from [2001:4bb8:180:3f4c:c944:137d:e92e:5fab] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1i29r9-0000NQ-Kf; Mon, 26 Aug 2019 07:56:04 +0000 From: Christoph Hellwig To: x86@kernel.org Cc: Dave Hansen , Andy Lutomirski , Peter Zijlstra , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/5] x86: unexport set_memory_x and set_memory_nx Date: Mon, 26 Aug 2019 09:55:54 +0200 Message-Id: <20190826075558.8125-2-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190826075558.8125-1-hch@lst.de> References: <20190826075558.8125-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org No module currently messed with clearing or setting the execute permission of kernel memory, and none really should. Signed-off-by: Christoph Hellwig Acked-by: Peter Zijlstra (Intel) --- arch/x86/mm/pageattr.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 6a9a77a403c9..a02ca8986299 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -1967,7 +1967,6 @@ int set_memory_x(unsigned long addr, int numpages) return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_NX), 0); } -EXPORT_SYMBOL(set_memory_x); int set_memory_nx(unsigned long addr, int numpages) { @@ -1976,7 +1975,6 @@ int set_memory_nx(unsigned long addr, int numpages) return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_NX), 0); } -EXPORT_SYMBOL(set_memory_nx); int set_memory_ro(unsigned long addr, int numpages) { -- 2.20.1