From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752960AbbBWVbQ (ORCPT ); Mon, 23 Feb 2015 16:31:16 -0500 Received: from mout.kundenserver.de ([212.227.126.187]:51809 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752429AbbBWVbO (ORCPT ); Mon, 23 Feb 2015 16:31:14 -0500 From: Arnd Bergmann To: Matthew Wilcox Cc: Geert Uytterhoeven , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Andrew Morton , linux-sh@vger.kernel.org, Vineet Gupta Subject: Re: fs: dax: do not build on ARC or SH Date: Mon, 23 Feb 2015 22:31:02 +0100 Message-ID: <15459536.KnHx4a8rlg@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.16.0-10-generic; KDE/4.11.5; x86_64; ; ) In-Reply-To: <20150223184025.GD2780@wil.cx> References: <5778538.KJ98x3yxkB@wuerfel> <20150223184025.GD2780@wil.cx> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:HwX3e1yG+Vf3XYvIqOchQ+ygR52t7b1zsCl/hG+et8Y77oQQH7H UURVsh1etsiMXGu6/BLnz+k0oGlrMKpEElHm/ezeqt6qMniJPGB3Yf37yrC4UUf1rSu2CIO vdYD1a9206bToliIBE6nhLZTXFSM6KPpMK7E82mrHJO5K0cTe1yxHSANs+Ih4xhw3MV08Ui CtA+py9mqFir7oRzAgjeQ== X-UI-Out-Filterresults: notjunk:1; Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday 23 February 2015 13:40:25 Matthew Wilcox wrote: > On Mon, Feb 23, 2015 at 12:29:45PM +0100, Arnd Bergmann wrote: > > The DAX implementation relies on the architecture to provide a working > > copy_user_page() function, as reported by Michael Ellerman's kisskb > > build bot: > > > > fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]: => 266:2 > > > > We already have a list of architectures that are known to be incompatible, > > but the list is missing ARC and SH at the moment. Further, blackfin and > > c6x also lack support for this function, but are already excluded because > > they do not support MMU-based kernels. > > I've got a short list of patches for DAX; I'll add this one to the list. Ok, thanks! > Have the maintainers of these architectures been notified that they're > missing a core piece of kernel functionality? Not until you put them on Cc here. Arnd