linux-kernel - Re: [PATCH] usb: Use a workqueue in usb_add

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Message-ID: <20120124165711.GC3836@linutronix.de>
Date:	Tue, 24 Jan 2012 17:57:11 +0100
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Simon Glass <sjg@...omium.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...e.de>, linux-usb@...r.kernel.org,
	Sarah Sharp <sarah.a.sharp@...ux.intel.com>
Subject: Re: [PATCH] usb: Use a workqueue in usb_add_hcd() to reduce boot
 time

* Alan Stern | 2012-01-21 11:11:09 [-0500]:

>Doing time-consuming things later won't make any difference.  That is,
>suppose the boot sequence performs activities A and B, where A takes a
>long time.  Doing A later, so that the boot sequence performs B and
>then A, won't change the total time required.

That is true. However if you show the gui _now_ and look for USB later
then it feels faster and this is usually enough.

>Alan Stern

Sebastian
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