Re: [Xen-devel] [PATCH] hotplug/Linux: update to new ip command syntax.

[Ian Campbell <ijc@xxxxxxxxxxxxxx>]

On Mon, 2013-08-19 at 17:44 +0100, Ian Jackson wrote:
> Ian Campbell writes ("[PATCH] hotplug/Linux: update to new ip command 
> syntax."):
> > From: Mike <debian@xxxxxxxxxxxxxxxxxxxxx>
> > 
> > This is Debian bug #705659. 
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=705659
> > 
> > Mike provided the initial patch to tools/hotplug/Linux/xen-network-common.sh
> > and I extended it to catch some cases in vif-* too.
> > 
> > Signed-off-by: Ian Campbell <ijc@xxxxxxxxxxxxxx>
> > Cc: Mike <debian@xxxxxxxxxxxxxxxxxxxxx>
> 
> Do we know whether this new syntax is backwards-compatible ?

Good question. Squeeze's ip(8) doesn't mention dev for "ip link show" in
the synopsis by virtue of not defining DEVICE anywhere but it does show
the use of dev later on and the tool accepts it. Likewise for "ip link
set". Given this, as Mike says, makes it impossible to name a device
"dev" it seems likely to be a documentation bug.

"ip addr flush" is correctly documented as needing the dev (by saying
"dev STRING" and not "DEVICE" , I didn't try without but I assume it
works since our scripts do that right now.

I wasn't easily able to come up with an older machine.

Ian.


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