From: YOSHIFUJI Hideaki <redacted>
Date: Thu, 24 Aug 2006 00:02:16 +0900

From: Masahide NAKAMURA <redacted>

With this patch transformation state is updated last used time
for each sending. Xtime is used for it like other state lifetime
expiration.
Mobile IPv6 enabled nodes will want to know traffic status of each
binding (e.g. judgement to request binding refresh by correspondent node,
or to keep home/care-of nonce alive by mobile node).
The last used timestamp is an important hint about it.
Based on MIPL2 kernel patch.

This patch was also written by: Henrik Petander [off-list ref]

Signed-off-by: Masahide NAKAMURA <redacted>
Signed-off-by: YOSHIFUJI Hideaki <redacted>

Patch applied to net-2.6.19