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=-3.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, T_DKIMWL_WL_HIGH,USER_AGENT_NEOMUTT 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 DD9BBC46470 for ; Sat, 25 May 2019 09:58:17 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 B26F521851 for ; Sat, 25 May 2019 09:58:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="f/X6hCSY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B26F521851 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=6lOuWmT7SGYhtuG1OtA/tebuTQA7HV6q4xnfCLSEjXs=; b=f/X6hCSYUW8bvc 2Ym4a3CZVXCQRaROeMFz7dvweCjXiBwpSmo0HBTR/GJVZy0VdMkbFZ9FFui7zNlbZCxluFgVClwdg zhMupcfa1SDpBYviVI3vH+tX5osLxSHH6kpkLYQorQGsIw+MbBPGFGEnCz9rPmTYWueHvZMwIiXIT WX4cYiO/eXrYj9fdmtgaop3qYgGkHMEYmhC5luAs/gM71A5tmvFxMGyk+lKqh4JwG/9iS/TZFD3SX wEBr8wgJrTVeR2IUhXq1+28CsYQHl+1tUB9ecUslw09oSibt79676UX9XEPmZXnioID88n4Nu7+o4 upZlzepOchI6nlOZmyOQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hUTRK-0005NM-3X; Sat, 25 May 2019 09:58:10 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hUTRG-0005Me-Gx for linux-arm-kernel@lists.infradead.org; Sat, 25 May 2019 09:58:08 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DC81580D; Sat, 25 May 2019 02:58:03 -0700 (PDT) Received: from mbp (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 19D783F703; Sat, 25 May 2019 02:57:57 -0700 (PDT) Date: Sat, 25 May 2019 10:57:55 +0100 From: Catalin Marinas To: Andrey Konovalov Subject: Re: [PATCH v15 05/17] arms64: untag user pointers passed to memory syscalls Message-ID: <20190525095753.caehqipafdc5m3yp@mbp> References: <00eb4c63fefc054e2c8d626e8fedfca11d7c2600.1557160186.git.andreyknvl@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <00eb4c63fefc054e2c8d626e8fedfca11d7c2600.1557160186.git.andreyknvl@google.com> User-Agent: NeoMutt/20170113 (1.7.2) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190525_025806_635331_4F0A1918 X-CRM114-Status: GOOD ( 10.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , kvm@vger.kernel.org, Szabolcs Nagy , Will Deacon , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, Felix Kuehling , Vincenzo Frascino , Jacob Bramley , Leon Romanovsky , linux-rdma@vger.kernel.org, amd-gfx@lists.freedesktop.org, Dmitry Vyukov , Dave Martin , Evgeniy Stepanov , linux-media@vger.kernel.org, Kevin Brodsky , Kees Cook , Ruben Ayrapetyan , Ramana Radhakrishnan , Alex Williamson , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Kostya Serebryany , Greg Kroah-Hartman , Yishai Hadas , linux-kernel@vger.kernel.org, Jens Wiklander , Lee Smith , Alexander Deucher , Andrew Morton , Robin Murphy , Christian Koenig , Luc Van Oostenryck Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, May 06, 2019 at 06:30:51PM +0200, Andrey Konovalov wrote: > +SYSCALL_DEFINE5(arm64_get_mempolicy, int __user *, policy, > + unsigned long __user *, nmask, unsigned long, maxnode, > + unsigned long, addr, unsigned long, flags) > +{ > + addr = untagged_addr(addr); > + return ksys_get_mempolicy(policy, nmask, maxnode, addr, flags); > +} [...] > +SYSCALL_DEFINE6(arm64_mbind, unsigned long, start, unsigned long, len, > + unsigned long, mode, const unsigned long __user *, nmask, > + unsigned long, maxnode, unsigned int, flags) > +{ > + start = untagged_addr(start); > + return ksys_mbind(start, len, mode, nmask, maxnode, flags); > +} The kernel fails to build with CONFIG_NUMA disabled because the above are in mm/mempolicy.c which is no longer compiled in. -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel