From: Masahide NAKAMURA <[EMAIL PROTECTED]>

Add Kconfig to support sub policy.

Signed-off-by: Masahide NAKAMURA <[EMAIL PROTECTED]>
Signed-off-by: YOSHIFUJI Hideaki <[EMAIL PROTECTED]>
---
 net/xfrm/Kconfig |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 43228f7..0faab63 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -14,6 +14,16 @@ config XFRM_USER
 
          If unsure, say Y.
 
+config XFRM_SUB_POLICY
+       bool "Transformation sub policy support (EXPERIMENTAL)"
+       depends on XFRM && EXPERIMENTAL
+       ---help---
+         Support sub policy for developers. By using sub policy with main
+         one, two policies can be applied to the same packet at once.
+         Policy which lives shorter time in kernel should be a sub.
+
+         If unsure, say N.
+
 config NET_KEY
        tristate "PF_KEY sockets"
        select XFRM
-- 
1.4.0

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