From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCHv3 01/19] [HACK] of: dev_node has struct device pointer
Date: Mon, 4 Nov 2013 07:42:48 +0100
Message-ID: <20131104.084248.48379321856602699.hdoyu@nvidia.com>
References: <20131101094644.GG27864@ulmo.nvidia.com><20131101.115919.351108054879013006.hdoyu@nvidia.com><527420EF.1070102@wwwdotorg.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
In-Reply-To: <527420EF.1070102-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/iommu>,
	<mailto:iommu-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/iommu/>
List-Post: <mailto:iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
List-Help: <mailto:iommu-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/iommu>,
	<mailto:iommu-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=subscribe>
Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
To: "swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org" <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
Cc: "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Stephen Warren <swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>, "rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org" <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>, "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" <iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>, "thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org" <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, "grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org" <grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
List-Id: devicetree@vger.kernel.org

Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org> wrote @ Fri, 1 Nov 2013 22:45:19 +0100:

> On 11/01/2013 03:59 AM, Hiroshi Doyu wrote:
> ...
> > One idea is that, rather than inserting a hook(function) per
> > subsystems in driver core, if we invent a new /special section/ which
> > collects all hooks in sequence like initcalls, the subsystem just
> > would declare a hook function for that special section. All hooks in
> > that section can be called from driver core iterately. Then we
> > wouldn't touch driver core code at all, once we insert a func to call
> > hooks repeatedly. Looks simpler than tweaking bus notifier.
> 
> That sounds like a lot of effort to avoid adding a simple function call
> to the core's probe path.

True.

Can be implemented/revisited later if needed after we once have a
simple function call, of_iommu_attach() in drvier core.