On Mon, Jul 4, 2016 at 10:56 AM, Marcel Holtmann <mar...@holtmann.org> wrote:
> Hi Andy,
>
>>>>>> SMP does ECB crypto on stack buffers.  This is complicated and
>>>>>> fragile, and it will not work if the stack is virtually allocated.
>>>>>>
>>>>>> Switch to the crypto_cipher interface, which is simpler and safer.
>>>>>>
>>>>>> Cc: Marcel Holtmann <mar...@holtmann.org>
>>>>>> Cc: Gustavo Padovan <gust...@padovan.org>
>>>>>> Cc: Johan Hedberg <johan.hedb...@gmail.com>
>>>>>> Cc: "David S. Miller" <da...@davemloft.net>
>>>>>> Cc: linux-blueto...@vger.kernel.org
>>>>>> Cc: netdev@vger.kernel.org
>>>>>> Acked-by: Herbert Xu <herb...@gondor.apana.org.au>
>>>>>> Acked-and-tested-by: Johan Hedberg <johan.hedb...@intel.com>
>>>>>> Signed-off-by: Andy Lutomirski <l...@kernel.org>
>>>>>> ---
>>>>>> net/bluetooth/smp.c | 67 
>>>>>> ++++++++++++++++++++++-------------------------------
>>>>>> 1 file changed, 28 insertions(+), 39 deletions(-)
>>>>>
>>>>> patch has been applied to bluetooth-next tree.
>>>>
>>>> Sadly carrying this separately will delay the virtual kernel stacks 
>>>> feature by a
>>>> kernel cycle, because it's a must-have prerequisite.
>>>
>>> I can take it back out, but then I have the fear the the ECDH change to use 
>>> KPP for SMP might be the one that has to wait a kernel cycle. Either way is 
>>> fine with me, but I want to avoid nasty merge conflicts in the Bluetooth 
>>> SMP code.
>>
>> Nothing goes wrong if an identical patch is queued in both places,
>> right?  Or, if you prefer not to duplicate it, could one of you commit
>> it and the other one pull it?  Ingo, given that this is patch 1 in the
>> series and unlikely to change, if you want to make this whole thing
>> have a separate branch in -tip, this could live there for starters.
>> (But, if you do so, please make sure you base off a very new copy of
>> Linus' tree -- the series is heavily dependent on the thread_info
>> change he applied a few days ago.)
>
> so what are doing now? I take this back out or we keep it in and let git deal 
> with it when merging the trees?
>

Unless Ingo says otherwise, let's let git deal with it.

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