From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: "Ming Lei" <tom.leiming@gmail.com>,
"Fengguang Wu" <fengguang.wu@intel.com>,
"Bjørn Mork" <bjorn@mork.no>, "Oliver Neukum" <oneukum@suse.de>,
"Sarah Sharp" <sarah.a.sharp@linux.intel.com>,
linux-kernel@vger.kernel.org,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
"Lan, Tianyu" <tianyu.lan@intel.com>
Subject: Re: BUG: unable to handle kernel paging request in usb_match_id()
Date: Fri, 17 Aug 2012 07:42:53 -0700 [thread overview]
Message-ID: <20120817144253.GA12835@kroah.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1208171031100.25520-100000@netrider.rowland.org>
On Fri, Aug 17, 2012 at 10:38:16AM -0400, Alan Stern wrote:
> 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?
Well, a long time ago people wanted to use USB but not have HOTPLUG
enabled in their systems for various (odd) embedded systems. As it's
pretty hard to even turn off HOTPLUG these days, I'd be more likely to
just remove CONFIG_HOTPLUG entirely given the dynamic nature of almost
all systems.
So no, I don't think we should select HOTPLUG for USB.
greg k-h
next prev parent reply other threads:[~2012-08-17 14:43 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-05 2:59 BUG: unable to handle kernel paging request in usb_match_id() Fengguang Wu
2012-08-05 16:58 ` Greg Kroah-Hartman
2012-08-17 2:00 ` Fengguang Wu
2012-08-17 3:48 ` Greg Kroah-Hartman
2012-08-17 5:44 ` Fengguang Wu
2012-08-17 8:52 ` Bjørn Mork
2012-08-17 9:07 ` Bjørn Mork
2012-08-17 9:27 ` Fengguang Wu
2012-08-17 10:24 ` Fengguang Wu
2012-08-17 12:16 ` Ming Lei
2012-08-17 13:45 ` Greg Kroah-Hartman
2012-08-17 14:38 ` Alan Stern
2012-08-17 14:42 ` Greg Kroah-Hartman [this message]
2012-08-18 0:58 ` Ming Lei
2012-08-19 10:23 ` Bjørn Mork
2012-08-19 14:35 ` Greg Kroah-Hartman
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