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From: Sven Eckelmann <sven@narfation.org>
Date: Mon, 18 Dec 2017 22:51:58 +0100
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Subject: Re: [B.A.T.M.A.N.] Batman -adv no longer backwards compatible with
 kernels Pre -4.0???
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Cc: jorge power <jorge@alumni.ufl.edu>

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On Montag, 18. Dezember 2017 15:55:48 CET jorge power wrote:
> I am running kernel 3.3.8 and trying to use batman adv ver 2017.4.
> I am getting error:
> 
> net/batman-adv/hard-interface.c:101:28: error: 'const struct
> rtnl_link_ops' has no member named 'get_link_net'
[...]
> So was the backwards compatability broken intentionally so its no
> longer backwards compatible with older kernels?
> 
> What can i do?

Stop trying to do your own stuff and use the full compat layer from batman-adv 
or LEDE (mac80211 + small batman-adv compat layer). We will not integrate any 
compat stuff in net/batman-adv/ because this is the part which is part of the 
official kernel [1]. So if you don't want to use the compat stuff then please
don't complain about having build errors.

And in case  somebody wonders: Yes, he acknowledged on IRC that he is not 
using the compat stuff from batman-adv to build against OpenWrt (without the 
OpenWrt package!!!!).

Kind regards,
	Sven

[1] the official kernel doesn't require compat and doesn't want it
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/checkpatch.pl?id=cb81fc6a3cf694345f29858624e5d9f3509d30d4#n3829
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