From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <hch@lst.de>
Received: from newverein.lst.de (verein.lst.de [213.95.11.211])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by lists.ozlabs.org (Postfix) with ESMTPS id 3xf42Z6r3BzDrVs
 for <linuxppc-dev@lists.ozlabs.org>; Sat, 26 Aug 2017 00:55:00 +1000 (AEST)
Date: Fri, 25 Aug 2017 16:54:57 +0200
From: Christoph Hellwig <hch@lst.de>
To: Rob Herring <robh+dt@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>, Frank Rowand <frowand.list@gmail.com>,
 "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
 "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>,
 "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
 Christoph Hellwig <hch@lst.de>,
 Marek Szyprowski <m.szyprowski@samsung.com>,
 Stefan Wahren <stefan.wahren@i2se.com>,
 Andreas =?iso-8859-1?Q?F=E4rber?= <afaerber@suse.de>,
 Hans Verkuil <hverkuil@xs4all.nl>, Johan Hovold <johan@kernel.org>,
 linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 2/2] of: Restrict DMA configuration
Message-ID: <20170825145457.GA17842@lst.de>
References: <0819179085df6c41c70e83a2c5c138b95c0386b3.1502468875.git.robin.murphy@arm.com>
 <82633e62b64e28dc18bc466319065b92faf2414f.1502468875.git.robin.murphy@arm.com>
 <CAL_JsqKW7nhkCDu4eEDCgdC87b0MLH1UFO8LvaH22BcJMBsY7w@mail.gmail.com>
 <6819c6ae-e898-3293-d8b0-7a80108d7628@arm.com>
 <CAL_Jsq+pDHbrpLDYUVu22tk4OtR9Di4vxZUozwWJDu2ebYSBdg@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
In-Reply-To: <CAL_Jsq+pDHbrpLDYUVu22tk4OtR9Di4vxZUozwWJDu2ebYSBdg@mail.gmail.com>
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>

On Tue, Aug 15, 2017 at 09:19:50AM -0500, Rob Herring wrote:
> > For the immediate issue at hand, I guess the alternative plan of attack
> > would be to stick a flag in struct bus_type for the bus drivers
> > themselves to opt into generic DMA configuration. That at least keeps
> > everything within the kernel (and come to think of it probably works
> > neatly for modular bus types as well).
> 
> I'm fine with the change as is, it's really just the commit text I'm
> commenting on.

Robin, can you resend this with an updated commit text?