From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Oliver Neukum <oliver@neukum.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Greg KH <greg@kroah.com>,
pm list <linux-pm@lists.linux-foundation.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
Len Brown <lenb@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Alexey Starikovskiy <astarikovskiy@suse.de>,
David Brownell <david-b@pacbell.net>, Pavel Machek <pavel@ucw.cz>,
Nigel Cunningham <ncunningham@crca.org.au>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 8)
Date: Mon, 14 Apr 2008 17:50:38 +1000 [thread overview]
Message-ID: <1208159438.6958.147.camel@pasglop> (raw)
In-Reply-To: <200804140937.09915.oliver@neukum.org>
On Mon, 2008-04-14 at 09:37 +0200, Oliver Neukum wrote:
> > Prepare() should be the right place to call request_firmware() and if
> > that is a problem because of bugs in some USB things, then those bugs
> > should be fixed.
>
> This isn't a bug. USB simply needs to be able to register (and deregister)
> children to be fully operative. You cannot expect a subsystem to work
> while some core services are not available.
No, and that's why the subsystem in question needs to nicely defer the
operations that it cannot do immediately to until resume. Nothing new
here.
In the case of USB, there are plenty of ways it could be done, from
blocking in whatever ioctl is causing trouble, to putting to-be-added
objects in a list that gets processed later...
Ben.
next prev parent reply other threads:[~2008-04-14 7:51 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-03 23:11 [PATCH 0/3] PM: New suspend and hibernation callbacks Rafael J. Wysocki
2008-04-03 23:12 ` [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 7) Rafael J. Wysocki
2008-04-12 0:23 ` Greg KH
2008-04-13 13:31 ` Rafael J. Wysocki
2008-04-13 13:33 ` [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 8) Rafael J. Wysocki
2008-04-13 21:05 ` Benjamin Herrenschmidt
2008-04-13 21:39 ` Rafael J. Wysocki
2008-04-13 22:10 ` Benjamin Herrenschmidt
2008-04-13 22:27 ` Rafael J. Wysocki
2008-04-13 22:47 ` Benjamin Herrenschmidt
2008-04-13 23:08 ` Rafael J. Wysocki
2008-04-13 23:46 ` Benjamin Herrenschmidt
2008-04-14 0:31 ` Rafael J. Wysocki
2008-04-14 0:46 ` Benjamin Herrenschmidt
2008-04-14 1:09 ` Rafael J. Wysocki
2008-04-14 3:23 ` Benjamin Herrenschmidt
2008-04-14 6:43 ` Oliver Neukum
2008-04-14 7:23 ` Benjamin Herrenschmidt
2008-04-14 7:37 ` Oliver Neukum
2008-04-14 7:50 ` Benjamin Herrenschmidt [this message]
2008-04-14 12:11 ` Rafael J. Wysocki
2008-04-14 15:13 ` Alan Stern
2008-04-14 20:48 ` Benjamin Herrenschmidt
2008-04-14 14:49 ` Alan Stern
2008-04-14 20:41 ` Oliver Neukum
2008-04-14 1:37 ` Nigel Cunningham
2008-04-14 12:25 ` Rafael J. Wysocki
2008-04-13 23:11 ` Nigel Cunningham
2008-04-13 23:17 ` Rafael J. Wysocki
2008-04-13 23:29 ` Nigel Cunningham
2008-04-13 23:23 ` Alan Stern
2008-04-13 23:33 ` Rafael J. Wysocki
2008-04-13 23:49 ` Benjamin Herrenschmidt
2008-04-13 23:48 ` Benjamin Herrenschmidt
2008-04-14 0:07 ` Rafael J. Wysocki
2008-04-14 0:40 ` Benjamin Herrenschmidt
2008-04-14 0:59 ` Rafael J. Wysocki
2008-04-14 0:43 ` Benjamin Herrenschmidt
2008-04-14 0:50 ` Rafael J. Wysocki
2008-04-14 4:47 ` David Brownell
2008-04-14 12:34 ` Rafael J. Wysocki
2008-04-14 14:51 ` Alan Stern
2008-04-14 20:47 ` Benjamin Herrenschmidt
2008-04-14 21:21 ` Pavel Machek
2008-04-14 10:55 ` Pavel Machek
2008-04-14 20:45 ` Benjamin Herrenschmidt
2008-04-14 20:56 ` Rafael J. Wysocki
2008-04-15 19:27 ` patch pm-introduce-new-top-level-suspend-and-hibernation-callbacks.patch added to gregkh-2.6 tree gregkh
2008-04-13 13:33 ` [PATCH 2/3] PM: New suspend and hibernation callbacks for platform bus type (rev. 3) Rafael J. Wysocki
2008-04-15 19:27 ` patch pm-new-suspend-and-hibernation-callbacks-for-platform-bus-type.patch added to gregkh-2.6 tree gregkh
2008-04-13 13:34 ` [PATCH 3/3] PM: New suspend and hibernation callbacks for PCI bus type (rev. 4) Rafael J. Wysocki
2008-04-15 19:27 ` patch pm-new-suspend-and-hibernation-callbacks-for-pci-bus-type.patch added to gregkh-2.6 tree gregkh
2008-04-29 22:26 ` PM: New suspend and hibernation callbacks for PCI bus type Greg KH
2008-04-30 12:09 ` Rafael J. Wysocki
2008-04-03 23:13 ` [PATCH 2/3] PM: New suspend and hibernation callbacks for platform bus type (rev. 3) Rafael J. Wysocki
2008-04-03 23:15 ` [PATCH 3/3] PM: New suspend and hibernation callbacks for PCI " Rafael J. Wysocki
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