ipv6: remove unnecessary check in addrconf_prefix_rcv_add_addr()

Remove unnecessary check on update_lft variable in
addrconf_prefix_rcv_add_addr routine since it is always set to 0.
Moreover remove update_lft re-initialization to 0

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 78cef00..62b9772 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2529,7 +2529,6 @@ int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
                if (IS_ERR_OR_NULL(ifp))
                        return -1;
 
-               update_lft = 0;
                create = 1;
                spin_lock_bh(&ifp->lock);
                ifp->flags |= IFA_F_MANAGETEMPADDR;
@@ -2551,7 +2550,7 @@ int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
                        stored_lft = ifp->valid_lft - (now - ifp->tstamp) / HZ;
                else
                        stored_lft = 0;
-               if (!update_lft && !create && stored_lft) {
+               if (!create && stored_lft) {
                        const u32 minimum_lft = min_t(u32,
                                stored_lft, MIN_VALID_LIFETIME);
                        valid_lft = max(valid_lft, minimum_lft);