linux-kernel - Re: BUG: unable to handle kernel paging request in usb_match

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Message-ID: <Pine.LNX.4.44L0.1208171031100.25520-100000@netrider.rowland.org>
Date:	Fri, 17 Aug 2012 10:38:16 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Ming Lei <tom.leiming@...il.com>
cc:	Fengguang Wu <fengguang.wu@...el.com>,
	Bjørn Mork <bjorn@...k.no>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Oliver Neukum <oneukum@...e.de>,
	Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
	<linux-kernel@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"Lan, Tianyu" <tianyu.lan@...el.com>
Subject: Re: BUG: unable to handle kernel paging request in usb_match_id()

On Fri, 17 Aug 2012, Ming Lei wrote:

> But,  if HOTPLUG is not enabled, should device_add() trigger driver probe
> further after kernel init is completed?  Or even devices should be allowed
> to add into system?

Indeed, does it make any sense to have USB support at all if HOTPLUG
isn't enabled?  Should USB select HOTPLUG?

Alan Stern

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