Re: [B.A.T.M.A.N.] [PATCH 1/5] batman-adv: Use common Jenkins Hash implementation

[Sven Eckelmann <sven@narfation.org>]

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On Monday 26 November 2012 13:30:02 Antonio Quartulli wrote:
[...]
> > The in kernel implementation will create a different hash sum -> tt
> > entries
> > will end up in a different bucket -> CRC will be different (please correct
> > me about the last step... just had this problem in the back of my head).
> CRC computation does not rely on entries positions, because the real CRC16
> is computed on the client mac address only (and this is the same
> everywhere) then the results are XOR'd together. Since XOR is commutative
> we do not need to keep the same order network wide.

I've already wrote this two 2 1/2 hours ago.

> Instead, your reasoning is correct for DAT, but for the global DAT hash
> function only.
> The local one can be whatever we need, so we can also use jhash for this.

Please define global and local DAT hash function. Because you use the same 
function in both places.

Kind regards,
	Sven

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