linux-kernel - Re: [PATCH 10/21] Staging: hv: Cleanup root device handling

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Date:	Mon, 14 Mar 2011 12:58:49 -0700
From:	Greg KH <gregkh@...e.de>
To:	KY Srinivasan <kys@...rosoft.com>
Cc:	Greg KH <greg@...ah.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"virtualization@...ts.osdl.org" <virtualization@...ts.osdl.org>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Mike Sterling <Mike.Sterling@...rosoft.com>,
	"Abhishek Kane (Mindtree Consulting PVT LTD)" 
	<v-abkane@...rosoft.com>
Subject: Re: [PATCH 10/21] Staging: hv: Cleanup root device handling

On Mon, Mar 14, 2011 at 07:54:29PM +0000, KY Srinivasan wrote:
> 
> 
> > -----Original Message-----
> > From: Greg KH [mailto:greg@...ah.com]
> > Sent: Monday, March 14, 2011 3:34 PM
> > To: KY Srinivasan
> > Cc: gregkh@...e.de; linux-kernel@...r.kernel.org;
> > devel@...uxdriverproject.org; virtualization@...ts.osdl.org; Haiyang Zhang; Mike
> > Sterling; Abhishek Kane (Mindtree Consulting PVT LTD)
> > Subject: Re: [PATCH 10/21] Staging: hv: Cleanup root device handling
> > 
> > On Thu, Mar 10, 2011 at 02:08:06PM -0800, K. Y. Srinivasan wrote:
> > > Now we can complete the cleanup of the root device
> > > management. Use the preferred APIs for creating and
> > > managing the root device. As part of this cleanup get rid
> > > of the root device object from vmbus_driver_context.
> > 
> > I don't understand, what is the "root device"?
> 
> This would be the device under /sys/devices that all 
> other hyperv devices would be grouped under. 
> This notion of the root device existed in the existing
> code; however  its creation and management was
> unnecessarily complicated. 

But that is what your new pci device should be, not a separate one.  Why
not use that instead?

Actually, how are things looking then?  You have a pci device, with no
children, yet the root device has the children devices?  That doesn't
really make sense now does it?

thanks,

greg k-h
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