linux-kernel - Re: WARNING: at fs/sysfs/dir.c:451 sysfs_add_one: sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:01.0/slot'

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Message-ID: <20100414125502.GA20755@canonical.com>
Date:	Wed, 14 Apr 2010 06:55:02 -0600
From:	Alex Chiang <achiang@...onical.com>
To:	Greg KH <gregkh@...e.de>
Cc:	Eric Paris <eparis@...hat.com>, linux-kernel@...r.kernel.org,
	jbarnes@...tuousgeek.org
Subject: Re: WARNING: at fs/sysfs/dir.c:451 sysfs_add_one: sysfs: cannot
 create duplicate filename '/devices/pci0000:00/0000:00:01.0/slot'

* Greg KH <gregkh@...e.de>:
> On Tue, Apr 13, 2010 at 07:33:34PM -0600, Alex Chiang wrote:
> > * Eric Paris <eparis@...hat.com>:
> > > 
> > > I get one for 1.0, 1.1, 1.2, 2.0, 3.0, 4.0, 5.0.  Below I only show the
> > > example for 1.0.  Attached should be the full dmesg and config.  Please
> > > let me know about any ideas, tests, questions, or things I can do to
> > > help debug the spew....
> > 
> > These come from a patch I wrote, but unfortunately, I don't have
> > the time or hardware to properly debug them. :(
> 
> It should be simple, for any dynamically allocated sysfs attribute, just
> call sysfs_attribute_initialize() before registering it with the sysfs
> core, and you will get rid of these messages.

Oh hm, I didn't realize that.

> If you have a pointer to your patch, I'll be glad to generate an add-on
> patch to resolve this issue.

In Jesse's linux-next branch:

commit 8b9cd07e02d69bb9e746a57fc987643d648c4b13
Author: Alex Chiang <achiang@...com>
Date:   Mon Mar 8 10:24:29 2010 -0700

    PCI: create function symlinks in /sys/bus/pci/slots/N/

Thanks Greg.

/ac

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