netdev - Re: [PATCH] net: neighbour table ABI problem

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Message-Id: <20080603.160327.105786253.davem@davemloft.net>
Date:	Tue, 03 Jun 2008 16:03:27 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	tgraf@...g.ch
Cc:	shemminger@...tta.com, kaber@...sh.net, Stephane_Chazelas@...oo.fr,
	netdev@...r.kernel.org
Subject: Re: [PATCH] net: neighbour table ABI problem

From: Thomas Graf <tgraf@...g.ch>
Date: Thu, 22 May 2008 02:20:42 +0200

> * David Miller <davem@...emloft.net> 2008-05-21 13:35
> > From: Stephen Hemminger <shemminger@...tta.com>
> > Date: Wed, 21 May 2008 10:40:19 -0700
> > 
> > > This change is small, but it breaks the ABI for older version of iproute2 utilities.
> > > But these utilities are already broken since they are looking at the psched_hz values
> > > which are completely different. So let's just go ahead and fix both kernel and user
> > > space. Older utilities will just print wrong values.
> > > 
> > 
> > Can we add a new attribute or something like that?
> 
> We could do but I agree with Stephen to just fix it the way he
> proposes. The value we're talking is only useful in a debugging
> or statistical context. We're not changing the format of the
> attribute at all, not even the unit, srictly speaking.

Fair enough, I've applied Stephen's patch.

Thanks.
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