From: Baker Zhang <baker.kernel@gmail.com>
Date: Tue, 19 Mar 2013 04:24:30 +0000 (+0000)
Subject: xfrm: use xfrm direction when lookup policy
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~417
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b5fb82c48b5898c50a9cf75fc957911b56fe1dc5;p=pandora-kernel.git

xfrm: use xfrm direction when lookup policy

because xfrm policy direction has same value with corresponding
flow direction, so this problem is covered.

In xfrm_lookup and __xfrm_policy_check, flow_cache_lookup is used to
accelerate the lookup.

Flow direction is given to flow_cache_lookup by policy_to_flow_dir.

When the flow cache is mismatched, callback 'resolver' is called.

'resolver' requires xfrm direction,
so convert direction back to xfrm direction.

Signed-off-by: Baker Zhang <baker.zhang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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