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SubjectRe: [PATCH 12/49] Staging: hv: storvsc: Add a DMI signature to support auto-loading
On Tue, Jun 07, 2011 at 02:54:25PM +0000, KY Srinivasan wrote:
>
>
> > -----Original Message-----
> > From: Christoph Hellwig [mailto:hch@infradead.org]
> > Sent: Monday, June 06, 2011 7:13 PM
> > To: KY Srinivasan
> > Cc: gregkh@suse.de; linux-kernel@vger.kernel.org;
> > devel@linuxdriverproject.org; virtualization@lists.osdl.org; Haiyang Zhang;
> > Abhishek Kane (Mindtree Consulting PVT LTD)
> > Subject: Re: [PATCH 12/49] Staging: hv: storvsc: Add a DMI signature to support
> > auto-loading
> >
> > On Mon, Jun 06, 2011 at 03:49:36PM -0700, K. Y. Srinivasan wrote:
> > > To support auto-loading the storvsc driver, add a DMI signature.
> >
> > The storvsc driver is not a DMI driver, but a vmbus driver. As such it
> > should have a vmbus table that is used for autoloading, not a dmi one.
> >
>
> A while ago, Greg introduced DMI signatures to these drivers to support
> auto-loading. This signature is not used for anything else. For some reason,
> this storvsc driver was missing this signature. I added it again to only support
> auto-loading.

Yes, that was there to solve the original problem of autoloading the
driver.

But Christoph is correct here, the vmbus needs a way to autoload its own
drivers based on the GUID signatures of the devices it finds on the
hyperv bus. So the correct thing to do in the long-run is to implement
this (which is one of the things the bus needs to do before it can move
out of staging).

I'll take this patch as-is for now though, as it does solve the
immediate issue.

thanks,

greg k-h


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