netdev - Re: [PATCH] net:cpsw: Pass unhandled ioctl's on to generic phy ioctl

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Date:	Wed, 5 Feb 2014 12:26:13 +0100
From:	Richard Cochran <richardcochran@...il.com>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Sørensen, Stefan 
	<Stefan.Sorensen@...ctralink.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"mugunthanvnm@...com" <mugunthanvnm@...com>
Subject: Re: [PATCH] net:cpsw: Pass unhandled ioctl's on to generic phy ioctl

On Wed, Feb 05, 2014 at 10:23:40AM +0000, Ben Hutchings wrote:
> 
> I would think that it should be a *run-time* option, as I don't like
> forcing people to rebuild their kernel.  But perhaps this is esoteric
> enough that the people who care will be doing that anyway.

For PHY time stamping, you need CONFIG_NETWORK_PHY_TIMESTAMPING which
adds extra checks into the hot path. I don't think anyone would enable
this by default. People using PHY time stamping are definitely
recompiling for their special use case.

Thanks,
Richard


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