From: Oliver Hartkopp <oliver@hartkopp.net>
Date: Tue, 6 Jan 2009 19:07:54 +0000 (-0800)
Subject: can: omit unneeded skb_clone() calls
X-Git-Tag: v2.6.29-rc1~45^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fa17d4ba43d7e5aab5e90777b07da06524f6748;p=pandora-kernel.git

can: omit unneeded skb_clone() calls

The AF_CAN core delivered always cloned sk_buffs to the AF_CAN
protocols, although this was _only_ needed by the can-raw protocol.
With this (additionally documented) change, the AF_CAN core calls the
callback functions of the registered AF_CAN protocols with the original
(uncloned) sk_buff pointer and let's the can-raw protocol do the
skb_clone() itself which omits all unneeded skb_clone() calls for other
AF_CAN protocols.

Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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