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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 876C9C28CC6 for ; Tue, 4 Jun 2019 07:27:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 557F82484B for ; Tue, 4 Jun 2019 07:27:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726742AbfFDH1d (ORCPT ); Tue, 4 Jun 2019 03:27:33 -0400 Received: from verein.lst.de ([213.95.11.211]:33787 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726697AbfFDH1d (ORCPT ); Tue, 4 Jun 2019 03:27:33 -0400 Received: by newverein.lst.de (Postfix, from userid 2407) id A57CC68B02; Tue, 4 Jun 2019 09:27:06 +0200 (CEST) Date: Tue, 4 Jun 2019 09:27:06 +0200 From: Christoph Hellwig To: Khalid Aziz Cc: Christoph Hellwig , Linus Torvalds , Paul Burton , James Hogan , Yoshinori Sato , Rich Felker , "David S. Miller" , Andrey Konovalov , Nicholas Piggin , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linux-mips@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, x86@kernel.org, linux-kernel@vger.kernel.org, Catalin Marinas Subject: Re: [PATCH 01/16] uaccess: add untagged_addr definition for other arches Message-ID: <20190604072706.GF15680@lst.de> References: <20190601074959.14036-1-hch@lst.de> <20190601074959.14036-2-hch@lst.de> <431c7395-2327-2f7c-cc8f-b01412b74e10@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <431c7395-2327-2f7c-cc8f-b01412b74e10@oracle.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On Mon, Jun 03, 2019 at 09:16:08AM -0600, Khalid Aziz wrote: > Could you reword above sentence? We are already starting off with > untagged_addr() not being no-op for arm64 and sparc64. It will expand > further potentially. So something more along the lines of "Define it as > noop for architectures that do not support memory tagging". The first > paragraph in the log can also be rewritten to be not specific to arm64. Well, as of this patch this actually is a no-op for everyone. Linus, what do you think of applying this patch (maybe with a slightly fixed up commit log) to 5.2-rc so that we remove a cross dependency between the series?