netdev - Re: [PATCH net-next 1/2] 6lowpan: introduce new net/6lowpan directory

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Date:	Sat, 12 Jul 2014 00:54:04 +0200
From:	Alexander Aring <alex.aring@...il.com>
To:	Marcel Holtmann <marcel@...tmann.org>
Cc:	Network Development <netdev@...r.kernel.org>,
	Jukka Rissanen <jukka.rissanen@...ux.intel.com>,
	linux-zigbee-devel@...ts.sourceforge.net,
	linux-bluetooth@...r.kernel.org
Subject: Re: [PATCH net-next 1/2] 6lowpan: introduce new net/6lowpan directory

Hi Marcel,

On Fri, Jul 11, 2014 at 02:33:03PM +0200, Marcel Holtmann wrote:
> Hi Alexander,
> 
> >>> index cbbbe6d..7ed1970 100644
> >>> --- a/net/Makefile
> >>> +++ b/net/Makefile
> >>> @@ -57,7 +57,8 @@ obj-$(CONFIG_CAIF)		+= caif/
> >>> ifneq ($(CONFIG_DCB),)
> >>> obj-y				+= dcb/
> >>> endif
> >>> -obj-y				+= ieee802154/
> >>> +obj-$(CONFIG_6LOWPAN)		+= 6lowpan/
> >>> +obj-$(CONFIG_IEEE802154)	+= ieee802154/
> >>> obj-$(CONFIG_MAC802154)		+= mac802154/
> >>> 
> >>> ifeq ($(CONFIG_NET),y)
> >>> diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
> >>> index 06ec144..a54777d 100644
> >>> --- a/net/bluetooth/Kconfig
> >>> +++ b/net/bluetooth/Kconfig
> >>> @@ -6,7 +6,6 @@ menuconfig BT
> >>> 	tristate "Bluetooth subsystem support"
> >>> 	depends on NET && !S390
> >>> 	depends on RFKILL || !RFKILL
> >>> -	select 6LOWPAN_IPHC if BT_6LOWPAN
> >>> 	select CRC16
> >>> 	select CRYPTO
> >>> 	select CRYPTO_BLKCIPHER
> >>> @@ -42,7 +41,7 @@ menuconfig BT
> >>> 
> >>> config BT_6LOWPAN
> >>> 	bool "Bluetooth 6LoWPAN support"
> >>> -	depends on BT && IPV6
> >>> +	depends on BT && 6LOWPAN
> >>> 	help
> >>> 	  IPv6 compression over Bluetooth.
> >> 
> >> this will conflict with our changes in wireless-next tree. We converted out 6LoWPAN support into a separate module.
> >> 
> > 
> > oops, sorry I didn't check on this. I simple based it on net-next,
> > because the patch series adds a new branch.
> > 
> > 
> > 
> > btw. we need to talk about who branch will commit changes to iphc code
> > to avoid conflicts.
> 
> a few years back we decided to merge bluetooth-next via John's wireless-next tree so that any interaction with 802.11 and Bluetooth can be sorted out in John's tree. We are now also merging NFC into the wireless-next tree.
> 
> So it might be a good idea to include the 6LoWPAN parts into the wireless-next tree as well. If there are conflicts with 802.15.4, maybe that should also go through his trees.
> 

Ok. I am maintainer since three days ago and I need some time to setup
my infrastructure, then I will ask him. At the end I need to update the
MAINTAINERS file to the new infrastructure.

> If you want I can also take the net/6lowpan stuff through bluetooth-next tree.
> 

Yes, please Marcel. This is one file at the moment. I have in my local
branch also some patches (most of them use IPv6 API for address scopes
instead using the self builded macros). There is also a issue with error
handling which should be a long overdue fix. You will get some patches
for these issues in the next days.


If we have more implementation stuff in there, then we should setup a
own 6lowpan mailinglist maybe. At the moment this is fine.

Thanks.

- Alex
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