linux-kernel - Re: [PATCH V2] au1xmmc: dev_pm

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-next>] [day] [month] [year] [list]

Message-ID: <20090803163304.GF5002@laptop>
Date:	Mon, 3 Aug 2009 18:33:04 +0200
From:	Albin Tonnerre <albin.tonnerre@...e-electrons.com>
To:	Frans Pop <elendil@...net.nl>, "Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH V2] au1xmmc: dev_pm_ops conversion

On Sat, Jul 25, 2009, Frans Pop wrote:
> Yes, I see that in drivers/base/platform.c (legacy) .suspend resp. .resume
> also got called for those cases?
> Ouch :-(

This really looks like it's error-prone (I made this mistake for atmel_serial
and wouldn't have noticed if Frans hadn't told me), and AFAICS, for a number of
drivers we'll have suspend = freeze = poweroff and resume = thaw = restore.
Maybe putting something like this in pm.h would help ?

#define PM_OPS(name, suspend, resume) \
struct dev_pm_ops name = { \
	.suspend = suspend, \
	.resume = resume, \
	.freeze = suspend, \
	.thaw = resume, \
	.poweroff = suspend, \
	.restore = resume, \
};

Cheers,
-- 
Albin Tonnerre, Free Electrons
Kernel, drivers and embedded Linux development,
consulting, training and support.
http://free-electrons.com
--
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/