linux-kernel - Re: [PATCH 1/1] usb,uhci: add a new tag for virtual uhci devices

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Date:	Mon, 1 Jul 2013 10:29:58 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	ZhenHua <zhen-hual@...com>
cc:	gregkh@...uxfoundation.org, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] usb,uhci: add a new tag for virtual uhci devices

On Mon, 1 Jul 2013, ZhenHua wrote:

> Let's make it clear:
> I said "I don't have a machine that this makes action different",
> it does not mean my patch "did not make the machine act different ".

Of course.

> There are many kinds of machines, I have never said "my patch does
> not make ALL of them act different".

But does it make a difference on _any_ machine?

There is a good reason for asking this question.  The "auto-stopp"  
mechanism in uhci-hcd was intended to be a temporary measure.  It isn't
needed now that we have runtime PM.  Adding a patch just to make it 
work on a few systems doesn't seem worthwhile -- we would be better off 
removing it entirely.

Alan Stern

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