linux-kernel - Re: [PATCH] drivers/base/power: be more verbose in device_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-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100604165037.GG2695@buzzloop.caiaq.de>
Date:	Fri, 4 Jun 2010 18:50:37 +0200
From:	Daniel Mack <daniel@...aq.de>
To:	Greg KH <gregkh@...e.de>
Cc:	linux-kernel@...r.kernel.org, "Rafael J. Wysocki" <rjw@...k.pl>,
	Len Brown <len.brown@...el.com>, Magnus Damm <damm@...l.co.jp>,
	Alan Stern <stern@...land.harvard.edu>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	linux-pm@...ts.linux-foundation.org
Subject: Re: [PATCH] drivers/base/power: be more verbose in device_pm_add()

On Fri, Jun 04, 2010 at 09:45:27AM -0700, Greg KH wrote:
> On Fri, Jun 04, 2010 at 02:17:14PM +0200, Daniel Mack wrote:
> > If a parentless device was added during a PM transaction, developers
> > might want to know which device caused the troube. Hence, output the
> > kobject's name in this case.
> > 
> > Signed-off-by: Daniel Mack <daniel@...aq.de>
> > Cc: Rafael J. Wysocki <rjw@...k.pl>
> > Cc: Len Brown <len.brown@...el.com>
> > Cc: Greg Kroah-Hartman <gregkh@...e.de>
> > Cc: Magnus Damm <damm@...l.co.jp>
> > Cc: Alan Stern <stern@...land.harvard.edu>
> > Cc: Randy Dunlap <randy.dunlap@...cle.com>
> > Cc: linux-pm@...ts.linux-foundation.org
> > ---
> >  drivers/base/power/main.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
> > index 941fcb8..9e9fe6a 100644
> > --- a/drivers/base/power/main.c
> > +++ b/drivers/base/power/main.c
> > @@ -98,7 +98,7 @@ void device_pm_add(struct device *dev)
> >  		 * transition is in progress in order to avoid leaving them
> >  		 * unhandled down the road
> >  		 */
> > -		dev_WARN(dev, "Parentless device registered during a PM transaction\n");
> > +		dev_WARN(dev, "Parentless device registered during a PM transaction: %s\n", kobject_name(&dev->kobj));
> 
> Doesn'tthe dev_WARN call already print the name of the device?  Why
> print it twice?

Erm, no it didn't. Should it have? This is what I saw:

[    0.880646] Parentless device registered during a PM transaction


Daniel
--
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/