2 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index b53f799189a..1d8c1f22c12 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -236,6 +236,7 @@ enum xfrm_attr_type_t {
         XFRMA_ETIMER_THRESH,
         XFRMA_SRCADDR,          /* xfrm_address_t */
         XFRMA_COADDR,           /* xfrm_address_t */
+        XFRMA_LASTUSED,
         __XFRMA_MAX
 
 #define XFRMA_MAX (__XFRMA_MAX - 1)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 872a2a4022b..248874ecf8d 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -167,6 +167,9 @@ struct xfrm_state
         struct xfrm_lifetime_cur curlft;
         struct timer_list       timer;
 
+        /* Last used time */
+        u64                     lastused;
+
         /* Reference to data common to all the instances of this
          * transformer. */
         struct xfrm_type        *type;