linux-kernel - Re: [PATCH] staging: Platform device tester

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Message-ID: <20130813182012.GE7740@kroah.com>
Date:	Tue, 13 Aug 2013 11:20:12 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Pantelis Antoniou <panto@...oniou-consulting.com>
Cc:	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	Benoît Coussno <b-cousson@...com>,
	Paul Walmsley <paul@...an.com>,
	Sourav Poddar <sourav.poddar@...com>,
	Russ Dill <Russ.Dill@...com>, Felipe Balbi <balbi@...com>,
	Koen Kooi <koen@...cuitco.com>, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: Platform device tester - Allow removal

On Tue, Aug 13, 2013 at 12:34:30PM +0300, Pantelis Antoniou wrote:
> This is a very simple device that allows testing of the removal path
> for platform devices.
> 
> The only interface is a single writeable sysfs attribute (action).

Why not use the existing "unbind/bind" sysfs files that all busses
support?  That's what userspace is expecting to use for adding and
removing devices from drivers from userspace.

This is a per-driver flag that the function platform_driver_probe() sets
for all platform drivers in the first line of that function.  Remove
that line and see what happens :)

thanks,

greg k-h
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