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Date: Thu, 27 Oct 2016 17:25:51 +0200
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Lukas Wunner <lukas@wunner.de>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Linux PM list <linux-pm@vger.kernel.org>,
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        Kevin Hilman <khilman@kernel.org>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        "Luis R. Rodriguez" <mcgrof@suse.com>
Subject: Re: [PATCH v5 2/5] driver core: Functional dependencies tracking
 support
Message-ID: <20161027152551.GA15718@kroah.com>
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On Wed, Oct 26, 2016 at 01:19:02PM +0200, Lukas Wunner wrote:
> Hi Rafael,
> 
> sorry for not responding to v5 of your series earlier, just sending
> this out now in the hope that it reaches you before your travels.
> 
> On Mon, Oct 10, 2016 at 02:51:04PM +0200, Rafael J. Wysocki wrote:
> > - Modify device_links_check_suppliers(), device_links_driver_bound(),
> >   device_links_no_driver(), device_links_driver_cleanup(), device_links_busy(),
> >   and device_links_unbind_consumers() to walk link lists under device_links_lock
> >   (to make the new "driver presence tracking" mechanism work reliably).
> 
> This change might increase boot time if drivers return -EPROBE_DEFER.

"might"?  Please verify this before guessing....

And don't make this more complex than needed before actually determining
a real issue.

thanks,

greg k-h