tree 05d287a417c04114afa68c2a931f3c212e133e1c
parent c5c2523893747f88a83376abad310c8ad13f7197
author Patrick McHardy <kaber@trash.net> 1176144478 -0700
committer David S. Miller <davem@sunset.davemloft.net> 1177565319 -0700

[XFRM]: beet: fix worst case header_len calculation

esp_init_state doesn't account for the beet pseudo header in the header_len
calculation, which may result in undersized skbs hitting xfrm4_beet_output,
causing unnecessary reallocations in ip_finish_output2.

The skbs should still always have enough room to avoid causing
skb_under_panic in skb_push since we have at least 16 bytes available
from LL_RESERVED_SPACE in xfrm_state_check_space.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>