netdev - Re: [IPROUTE]: Fix up "ip link" help text

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Date:	Mon, 13 Oct 2008 11:07:46 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Arkadiusz Miskiewicz <arekm@...en.pl>
Cc:	Patrick McHardy <kaber@...sh.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [IPROUTE]: Fix up "ip link" help text

On Mon, 13 Oct 2008 19:17:00 +0200
Arkadiusz Miskiewicz <arekm@...en.pl> wrote:

> On Monday 13 of October 2008, Stephen Hemminger wrote:
> > On Tue, 07 Oct 2008 23:02:17 +0200
> >
> > Patrick McHardy <kaber@...sh.net> wrote:
> > > Arkadiusz Miskiewicz wrote:
> > > > Runtime dependand help doesn't look sane. Help should always show all
> > > > possible options/command while trying to use unsupported option should
> > > > display error message.
> > >
> > > That makes sense. But don't complain to me about the quality
> > > of the error messages afterwards please :)
> >
> > I applied a variant of Patrick's original patch. I added text for delete,
> > and avoided some code movement.  The help text should only show what is
> > supported otherwise there will be user complaints.
> 
> Too bad. 
> 
> Help should show all options while trying to use unsupported ones should 
> yeld "unsupported"/some error message.
> 
> Will ipv6 options etc, etc also be hidden when ipv6 not available?
> 


The options won't show on older kernels. It is not a kernel config option
difference, it is old legacy code, like back to 2.4 where the API's just
aren't there.
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