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=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 BC5FAC433E3 for ; Fri, 17 Jul 2020 06:54:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A4CE920734 for ; Fri, 17 Jul 2020 06:54:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727951AbgGQGyO (ORCPT ); Fri, 17 Jul 2020 02:54:14 -0400 Received: from mx2.suse.de ([195.135.220.15]:37780 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726656AbgGQGyN (ORCPT ); Fri, 17 Jul 2020 02:54:13 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id D0962AF34; Fri, 17 Jul 2020 06:54:16 +0000 (UTC) Date: Fri, 17 Jul 2020 08:54:12 +0200 Message-ID: From: Takashi Iwai To: Christoph Hellwig Cc: Takashi Iwai , Stephen Rothwell , Linux Next Mailing List , Linux Kernel Mailing List Subject: Re: linux-next: build failure after merge of the sound tree In-Reply-To: <20200717065030.GA10829@lst.de> References: <20200717130112.469f8f8f@canb.auug.org.au> <20200717053324.GA9319@lst.de> <20200717065030.GA10829@lst.de> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 17 Jul 2020 08:50:30 +0200, Christoph Hellwig wrote: > > On Fri, Jul 17, 2020 at 08:34:47AM +0200, Takashi Iwai wrote: > > On Fri, 17 Jul 2020 07:33:24 +0200, > > Christoph Hellwig wrote: > > > > > > On Fri, Jul 17, 2020 at 01:01:12PM +1000, Stephen Rothwell wrote: > > > > Hi all, > > > > > > > > After merging the sound tree, today's linux-next build (x86_64 > > > > allmodconfig) failed like this: > > > > > > No, the sound commit needs to be reverted. Drivers has absolutely not > > > business poking into DMA layer internals. > > > > OK, I'll drop that stuff again. It was the thing posted in the thread > > of DMA regression with AMD SEV on 5.8-rc1. Meanwhile it was fixed in > > the proper Kconfig dependency. > > We have other x86 changes that will not support just remapping stuff > ignoring the API in the pipe, so this will need to get sorted out. And > with that I mean sorted out properly instead of poking into undocumented > DMA API internals and coming to the wrong conclusions again.. OK, when a proper API (or some kconfig) is ready for referring from the driver side, let me know. I'd love to keep the SG-buffer support as much as possible, since HD-audio stuff has been used for a very old machine with a small RAM. thanks, Takashi