linux-kernel - Re: [PATCH v2] Add suspend/resume for HPET

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070331170856.GA14959@suse.de>
Date:	Sat, 31 Mar 2007 10:08:56 -0700
From:	Greg KH <gregkh@...e.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	Sergei Shtylyov <sshtylyov@...mvista.com>,
	Ingo Molnar <mingo@...e.hu>,
	Jeff Chua <jeff.chua.linux@...il.com>,
	Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, pavel@...e.cz,
	linux-pm@...ts.osdl.org, linux-pci@...ey.karlin.mff.cuni.cz,
	Jens Axboe <jens.axboe@...cle.com>,
	Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org,
	jgarzik@...ox.com, linux-ide@...r.kernel.org,
	"Michael S. Tsirkin" <mst@...lanox.co.il>
Subject: Re: [PATCH v2] Add suspend/resume for HPET

On Sat, Mar 31, 2007 at 09:53:43AM -0700, Linus Torvalds wrote:
> Make them be at the top of the device tree by adding them early. That's 
> the whole point of the device tree after all - we have an ordering that is 
> enforced by its topology, and that we sort by when things were added.
> 
> Right now the way things work is (iirc - somebody like Greg should 
> double-check me) is that we add all devices to the power list at 
> device_add() time by traversing the devices fromt he root all the way out, 
> and doing a device_add() which does a device_pm_add(), which in turn adds 
> it to the power-management list - so that the list is always topologically 
> sorted.

Yes, this is how it works (or if not, then there's a bug that needs to
be fixed, as that is how it _should_ work...)

thanks,

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/