netdev - Re: [v1 PATCH 2/7] rhashtable: Allow hash/comparison functions to be inlined

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Message-ID: <20150320120228.GA18736@gondor.apana.org.au>
Date:	Fri, 20 Mar 2015 23:02:28 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Thomas Graf <tgraf@...g.ch>,
	Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org
Subject: Re: [v1 PATCH 2/7] rhashtable: Allow hash/comparison functions to be
 inlined

On Fri, Mar 20, 2015 at 11:20:42AM +0000, Patrick McHardy wrote:
>
> I haven't checked in detail yet whether this still satisfies what
> we need in nftables, just a minor comment below:

AFAIK I have done nothing to break multiple keys as yet and
the comparison function is still there, just embedded into the
params structure.

> > +struct rhashtable_compare_arg {
> > +	struct rhashtable *ht;
> > +	const void *key;
> > +};
> 
> I found it a bit odd in the old interface that elementary data
> such as the key for comparision is encapsulated into a structure
> instead of passed as a function argument. Is there a reason
> for not passing both as arguments so we can at least avoid the
> encapsulation for the common case?

I don't have any objections against changing it but it could
be done outside of this particular patch-set.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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