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Message-Id: <20071113.213416.151969246.davem@davemloft.net>
Date: Tue, 13 Nov 2007 21:34:16 -0800 (PST)
From: David Miller <davem@...emloft.net>
To: herbert@...dor.apana.org.au
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH 4/24] [NET]: Eliminate duplicate copies of dst_discard
From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Wed, 07 Nov 2007 22:08:20 +0800
> [NET]: Eliminate duplicate copies of dst_discard
>
> We have a number of copies of dst_discard scattered around the place which
> all do the same thing, namely free a packet on the input or output paths.
>
> This patch deletes all of them except dst_discard and points all the users
> to it.
>
> The only non-trivial bit is decnet where it returns an error. However,
> conceptually this is identical to the blackhole functions used in IPv4
> and IPv6 which do not return errors. So they should either all return
> errors or all return zero. For now I've stuck with the majority and
> picked zero as the return value.
>
> It doesn't really matter in practice since few if any driver would react
> differently depending on a zero return value or NET_RX_DROP.
>
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
Applied to net-2.6.25
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