linux-kernel - Re: [PATCH 11/21] Staging: hv: Make vmbus driver a platform pci driver

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Date:	Thu, 10 Mar 2011 14:32:56 -0800
From:	Greg KH <gregkh@...e.de>
To:	KY Srinivasan <kys@...rosoft.com>
Cc:	"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>, Hank Janssen <hjanssen@...rosoft.com>
Subject: Re: [PATCH 11/21] Staging: hv: Make vmbus driver a platform pci
 driver

On Thu, Mar 10, 2011 at 10:28:27PM +0000, KY Srinivasan wrote:
> 
> 
> > -----Original Message-----
> > From: Greg KH [mailto:gregkh@...e.de]
> > Sent: Thursday, March 10, 2011 5:21 PM
> > To: KY Srinivasan
> > Cc: linux-kernel@...r.kernel.org; devel@...uxdriverproject.org;
> > virtualization@...ts.osdl.org; Haiyang Zhang; Mike Sterling; Abhishek Kane
> > (Mindtree Consulting PVT LTD); Hank Janssen
> > Subject: Re: [PATCH 11/21] Staging: hv: Make vmbus driver a platform pci driver
> > 
> > On Thu, Mar 10, 2011 at 02:08:32PM -0800, K. Y. Srinivasan wrote:
> > > Make vmbus driver a platform pci driver. This is
> > > in preparation to cleaning up irq allocation for this
> > > driver.
> > 
> > The idea is nice, but the nameing is a bit confusing.
> > 
> > We have "platform drivers" which are much different from what you are
> > doing here, you are just creating a "normal" pci driver.
> > 
> > Very minor comments below.
> > 
> > >
> > > Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
> > > Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> > > Signed-off-by: Mike Sterling <mike.sterling@...rosoft.com>
> > > Signed-off-by: Abhishek Kane <v-abkane@...rosoft.com>
> > > Signed-off-by: Hank Janssen <hjanssen@...rosoft.com>
> > > ---
> > >  drivers/staging/hv/vmbus_drv.c |   63 +++++++++++++++++++++++-------------
> > ----
> > >  1 files changed, 36 insertions(+), 27 deletions(-)
> > >
> > > diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
> > > index 8b9394a..e4855ac 100644
> > > --- a/drivers/staging/hv/vmbus_drv.c
> > > +++ b/drivers/staging/hv/vmbus_drv.c
> > > @@ -43,6 +43,8 @@
> > >
> > >  static struct device *root_dev; /* Root device */
> > >
> > > +struct pci_dev *hv_pci_dev;
> > > +
> > >  /* Main vmbus driver data structure */
> > >  struct vmbus_driver_context {
> > >
> > > @@ -887,36 +889,24 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id)
> > >  	}
> > >  }
> > >
> > > -static struct dmi_system_id __initdata microsoft_hv_dmi_table[] = {
> > > -	{
> > > -		.ident = "Hyper-V",
> > > -		.matches = {
> > > -			DMI_MATCH(DMI_SYS_VENDOR, "Microsoft
> > Corporation"),
> > > -			DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
> > > -			DMI_MATCH(DMI_BOARD_NAME, "Virtual Machine"),
> > > -		},
> > > -	},
> > > -	{ },
> > > -};
> > > -MODULE_DEVICE_TABLE(dmi, microsoft_hv_dmi_table);
> > 
> > You're sure it's safe to delete this now and just rely on the PCI ids,
> > right?  For some wierd reason I thought we needed both to catch all
> > types of systems, but I can't remember why.
> I have tested this; I don't think we need the dmi table.

Ok, if you are sure, that's fine with me.

> > How about "hv_bus" as a name, as that's what this really is.  It's a
> > "bus adapter", like USB, Firewire, and all sorts of other bus
> > controllers.
> 
> Sure; I will make these changes. Would you mind if I submit these name changes as a separate patch.

How about just redo this patch?  I haven't reviewed the others yet, so
you might want to wait a day to see if I don't like any of them either
:)

> 
> Regards,
> 
> K. Y
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