netdev - Re: [PATCH] ptp_clock: future-proofing drivers against PTP subsystem becoming optional

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Message-ID: <20160921084542.GB27145@localhost.localdomain>
Date:   Wed, 21 Sep 2016 10:45:42 +0200
From:   Richard Cochran <richardcochran@...il.com>
To:     Nicolas Pitre <nicolas.pitre@...aro.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        John Stultz <john.stultz@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Josh Triplett <josh@...htriplett.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ptp_clock: future-proofing drivers against PTP subsystem
 becoming optional

On Tue, Sep 20, 2016 at 07:25:58PM -0400, Nicolas Pitre wrote:
> 
> Drivers must be ready to accept NULL from ptp_clock_register() if the
> PTP clock subsystem is configured out.
> 
> This patch documents that and ensures that all drivers cope well
> with a NULL return.
> 
> Signed-off-by: Nicolas Pitre <nico@...aro.org>
> Reviewed-by: Eugenia Emantayev <eugenia@...lanox.com>
> 
> ---
> 
> Let's have the basics merged now and work out the actual Kconfig issue 
> separately. Richard, if you agree with this patch, I think this could go 
> via the netdev tree.

It looks ok to me.

Acked-by: Richard Cochran <richardcochran@...il.com>