Re: 6lowpan raw socket problems

[Simon Vincent <simon.vincent@xsilon.com>]

I have implemented and tested the fix and it seems to work!
I used a combination of skb_unshare and pulled some of your wpan_rework 
changes in so the compression is done in lowpan_xmit.

Simon

On 19/09/14 13:57, Alexander Aring wrote:
> On Fri, Sep 19, 2014 at 02:55:44PM +0200, Alexander Aring wrote:
>> Hi Simon,
>>
>> On Fri, Sep 19, 2014 at 01:44:38PM +0100, Simon Vincent wrote:
>> ...
>>>> mhh, take a look on skb_unshare - make a copy of a shared buffe [0].
>>>>
>>>> Seems that we could use that to have a copy of the buffer. Don't know if
>>>> this can work, because we are inside of callback and the caller lost the
>>>> reference then.
>>> I tried that earlier! Didn't work as we lost the reference as you say.
>>> I think if we do it inside lowpan_xmit like you do in your rework we might
>>> be ok. I will have a go.
>>>
>> Yea, with combination of lowpan_xmit and do a:
>>
>> skb = skb_unshare(skb, GFP_ATOMIC);
>>
>> it's woooorrkkinnnnggg.
>>
> I hope it's working now, it doesn't look like garbage anymore.
>
> - Alex