netdev - RE: [PATCH net-next 3/3] ptp: derive the device name from the parent device

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Message-ID: <02874ECE860811409154E81DA85FBB5818BFF5B4@ORSMSX105.amr.corp.intel.com>
Date:	Fri, 21 Sep 2012 17:39:02 +0000
From:	"Keller, Jacob E" <jacob.e.keller@...el.com>
To:	Richard Cochran <richardcochran@...il.com>,
	Ben Hutchings <bhutchings@...arflare.com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	John Stultz <john.stultz@...aro.org>,
	"Vick, Matthew" <matthew.vick@...el.com>
Subject: RE: [PATCH net-next 3/3] ptp: derive the device name from the
 parent device

> -----Original Message-----
> From: Richard Cochran [mailto:richardcochran@...il.com]
> Sent: Friday, September 21, 2012 10:37 AM
> To: Ben Hutchings
> Cc: netdev@...r.kernel.org; David Miller; Keller, Jacob E; Kirsher,
> Jeffrey T; John Stultz; Vick, Matthew
> Subject: Re: [PATCH net-next 3/3] ptp: derive the device name from the
> parent device
> 
> On Fri, Sep 21, 2012 at 06:19:25PM +0100, Ben Hutchings wrote:
> > On Fri, 2012-09-21 at 19:00 +0200, Richard Cochran wrote:
> > > PTP Hardware Clock device have a name that appears under sysfs that
> > > should identify the underlying device. Instead of leaving it up to
> > > the driver to invent a name, this patch changes the registration to
> > > automatically use the name from the parent device.
> >
> > I thought you wanted the driver name and not the parent device name?
> 
> Yes, I originally wanted the driver name, because it gives the user
> information about the expected performance. But here I am bowing to
> Jacob's suggestion that we really need to identify the device. Intel cards
> with two ports have *two* clocks. Sad but true.
> 

With the device, it is possible to lookup the driver.

- Jake

> Thanks,
> Richard
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