Re: [PATCH 4/8] ieee802154: Remove 802.15.4/6LoWPAN checks for interface MTU.

[Alexander Aring <alex.aring@gmail.com>]

On Tue, May 19, 2015 at 10:50:07PM +0300, Lennert Buytenhek wrote:
> In the past, 802.15.4 interfaces and 6LoWPAN interfaces used the
> same dev->type (ARPHRD_IEEE802154), and 802.15.4 interfaces were
> distinguished from 6LoWPAN interfaces by their differing dev->mtu.
> 
> 6LoWPAN interfaces have their own ARPHRD type now, so there is no
> longer any need to check dev->mtu to distinguish 802.15.4 devices
> from 6LoWPAN devices.
> 
> Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>

Acked-by: Alexander Aring <alex.aring@gmail.com>

btw: the reason why I introduced this was that I had really fear to
change the lowpan ARPHRD, because there exists already a huge of
software which support this and somebody told me that when he delete a
lowpan interface with the iz tool then the whole kernel was crashed.
This was indeed true because it had freed some resources which was
allocated on a wpan interface only.

But we don't need this anymore, yes. I changed the ARPHRD and nobody
screamed that his/her software doesn't work anymore.

- Alex