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(parent: bc416d9) | patch
l2tp: give proper headroom in pppol2tp_xmit()
authorEric Dumazet <eric.dumazet@gmail.com>
Fri, 7 Oct 2011 05:45:57 +0000 (05:45 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 19 Oct 2011 03:33:44 +0000 (23:33 -0400)
commit09df57ca604512b29b6096afb381c839ccbd2912
treed7a820fea1ef93ad5a2e8ba74926b85b451428cbtree
parentbc416d9768aa9a2e46eb11354a9c58399dafeb01commit | diff
l2tp: give proper headroom in pppol2tp_xmit()

pppol2tp_xmit() calls skb_cow_head(skb, 2) before calling
l2tp_xmit_skb()

Then l2tp_xmit_skb() calls again skb_cow_head(skb, large_headroom)

This patchs changes the first skb_cow_head() call to supply the needed
headroom to make sure at most one (expensive) pskb_expand_head() is
done.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/l2tp/l2tp_ppp.c diff | blob | blame | history
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