1 files changed, 1 insertions, 0 deletions

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 11cf373970a9..51a7031b4aa3 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -41,6 +41,7 @@ struct inet6_ifaddr {
         struct in6_addr         addr;
         __u32                   prefix_len;
         
+        /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */
         __u32                   valid_lft;
         __u32                   prefered_lft;
         atomic_t                refcnt;