netdev - Re: [RFC][PATCH 0/3] net_tstamp: Add SIOCGHWTSTAMP ioctl

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Date:	Thu, 14 Nov 2013 15:10:19 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Richard Cochran <richardcochran@...il.com>
CC:	David Miller <davem@...emloft.net>, <netdev@...r.kernel.org>,
	<linux-net-drivers@...arflare.com>
Subject: Re: [RFC][PATCH 0/3] net_tstamp: Add SIOCGHWTSTAMP ioctl

On Thu, 2013-11-14 at 08:41 +0100, Richard Cochran wrote:
> On Thu, Nov 14, 2013 at 02:37:15AM +0000, Ben Hutchings wrote:
> > SIOCSHWTSTAMP returns the real configuration to the application
> > using it, but there is currently no way for any other
> > application to find out the configuration non-destructively.
> 
> I guess that the reasoning behind the original interface is that an
> application only wants to know the settings when it needs a particular
> setting in order to operate correctly. This would make the query call
> pointless, since the application might as well just go ahead and set
> the values that it needs.
> 
> Do you have a particular use case in mind?

The immediate motivation is wanting to include this information in
diagnostic reports.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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