netdev - Re: pull request: batman-adv 2013-10-09

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Message-Id: <20131009.135652.2086284751199593695.davem@davemloft.net>
Date:	Wed, 09 Oct 2013 13:56:52 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	antonio@...hcoding.com
Cc:	netdev@...r.kernel.org, b.a.t.m.a.n@...ts.open-mesh.org
Subject: Re: pull request: batman-adv 2013-10-09

From: Antonio Quartulli <antonio@...hcoding.com>
Date: Wed,  9 Oct 2013 14:40:02 +0200

> Hello David,
> 
> this is a set of changes intended for net-next/linux-3.13.
> 
> As introduced one year ago (http://article.gmane.org/gmane.org.freifunk.batman/8484)
> in the last period we have been busy working on giving our batman-adv
> protocol/packet-format all those means to get stable and avoid incompatibilities
> in the near future (this is also why we did not send many changes for
> linux-3.12..).
> 
> With this patchset we are finally switching to a new compatibility version and
> within this development cycle I will send you all those changes aimed to
> introduce all the needed mechanism to avoid any further compatibility breakage.
> 
> First of all, in this batch you have the new TVLV code (Type Version Value
> Length) which is the first very important milestone towards our goal[1].
> With this mechanism we will be able to improve/change the packet contents layout
> (used by the various features) without breaking compatibility with older
> protocol versions anymore.
> The development of this new component has been started by Spyros Gasteratos
> during his Google Summer of Code 2012 and then adjusted, finished and submitted
> by Marek Lindner.
> 
> Together with it, you have a set of improvements that we are allowed to apply
> thanks to the switching to the new compat version.
> These changes are:
> - adapt the existing features to make them use the new TVLV mechanism
> - move from CRC16 to CRC32c for table correctness check in the TT component
> - reorder some of the flags sent over the wire
> - remove the __packed attribute from the OGM packet struct.
> 
> Moreover, with this patchset we are totally removing our VISualisation component
> that is now implemented in userspace.
> 
> Please pull let me know of any problem.

Pulled, thanks.
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