Date: Sun, 12 May 2013 19:24:46 +0200
From: Richard Cochran <richardcochran@gmail.com>
To: Dong Zhu <bluezhudong@gmail.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
        Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
        Jesse Brandeburg <jesse.brandeburg@intel.com>,
        Bruce Allan <bruce.w.allan@intel.com>,
        Carolyn Wyborny <carolyn.wyborny@intel.com>,
        Don Skidmore <donald.c.skidmore@intel.com>,
        Greg Rose <gregory.v.rose@intel.com>,
        Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>,
        Alex Duyck <alexander.h.duyck@intel.com>,
        John Ronciak <john.ronciak@intel.com>,
        Tushar Dave <tushar.n.dave@intel.com>,
        Matthew Vick <matthew.vick@intel.com>,
        Jacob Keller <Jacob.e.keller@intel.com>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        David Howells <dhowells@redhat.com>, Dave Jones <davej@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>, linux-kernel@vger.kernel.org,
        e1000-devel@lists.sourceforge.net, netdev@vger.kernel.org
Subject: Re: [PATCH] igb: add a method to get the nic hw time stamping
 policy
Message-ID: <20130512172446.GA2484@netboy>
References: <20130511140219.GG8399@zhudong.nay.redhat.com>
 <518E7723.5010003@cogentembedded.com>
 <20130512142555.GI8399@zhudong.nay.redhat.com>
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On Sun, May 12, 2013 at 10:25:55PM +0800, Dong Zhu wrote:
> Thanks for your pointing out my mistakes of CodingStyle.
> 
> > > struct hwtstamp_config {
> > >+	int rw;
> 
> My initial idea was that the type of rw should be enum like tx_type, but I am
> not sure whther it is necessary to define a new enum, if this patch could
> be accpeted I will ask someone about the rw. At that time I will change
> the type of rw to bool or define a new enum, then convert the if to
> switch if necessary.

You cannot add any new field at all. That would break a userland ABI.

Thanks,
Richard
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