From: Patrick McHardy <kaber@trash.net>
Date: Mon, 9 Apr 2007 18:47:58 +0000 (-0700)
Subject: [XFRM]: beet: fix worst case header_len calculation
X-Git-Tag: v2.6.22-rc1~1128^2~134
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac758e3c55c529714354fc268892ca4d23ca1e99;p=pandora-kernel.git

[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>
---

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