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Message-ID: <20090912025623.GA14824@plap4-2.local>
Date: Fri, 11 Sep 2009 19:56:23 -0700
From: Andrew Vasquez <andrew.vasquez@...gic.com>
To: Greg KH <greg@...ah.com>
Cc: James Bottomley <James.Bottomley@...e.de>,
Linux SCSI Mailing List <linux-scsi@...r.kernel.org>,
Randy Dunlap <randy.dunlap@...cle.com>,
Stephen Rothwell <sfr@...b.auug.org.au>,
"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Giridhar Malavali <giridhar.malavali@...gic.com>,
Ravi Anand <ravi.anand@...gic.com>,
Lalit Chandivade <lalit.chandivade@...gic.com>
Subject: Re: [PATCHv2] qla2xxx: Correct compilation issues when
CONFIG_MOUDLES=n.
On Fri, 11 Sep 2009, Greg KH wrote:
> On Fri, Sep 11, 2009 at 05:38:08PM -0700, Andrew Vasquez wrote:
> > Randy Dunlap noted:
> >
> > when CONFIG_MODULES=n:
> >
> > drivers/scsi/qla2xxx/qla_os.c:2685: error: dereferencing pointer to incomplete type
> >
> > in
> >
> > kobject_uevent_env(&(&vha->hw->pdev->driver->driver)->owner->mkobj.kobj,
> > KOBJ_CHANGE, envp);
> >
> > Trigger kobject event on the 'struct device' hanging off the pci_dev.
>
> Um, why? What are you trying to do here? kobject change should not be
> for a device, or a "normal" kobject.
>
> What do you expect userspace to do with this? Where have you documented
> it?
The purpose was described here:
http://article.gmane.org/gmane.linux.scsi/54155
Basically we'd like to instruct user-space to retrieve a blob of data
automatically. Original implementation used the kboject hanging off
the module which does not exist when CONFIG_MODULES=n. It was
suggested that perhaps an alternative would be to use 'struct device'
kobj. Any tips on how to trigger such a driver-specific event,
perhaps a dedicated kobject exported by the driver itself???
> confused,
anch'io...
Thanks, AV
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