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Diffstat (limited to 'net')
-rw-r--r--net/ipv6/addrconf.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 645bf317019f..713ebe303f61 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4296,9 +4296,9 @@ static int inet6_fill_link_af(struct sk_buff *skb, const struct net_device *dev)
static int inet6_set_iftoken(struct inet6_dev *idev, struct in6_addr *token)
{
- struct in6_addr ll_addr;
struct inet6_ifaddr *ifp;
struct net_device *dev = idev->dev;
+ bool update_rs = false;
if (token == NULL)
return -EINVAL;
@@ -4306,8 +4306,6 @@ static int inet6_set_iftoken(struct inet6_dev *idev, struct in6_addr *token)
return -EINVAL;
if (dev->flags & (IFF_LOOPBACK | IFF_NOARP))
return -EINVAL;
- if (idev->dead || !(idev->if_flags & IF_READY))
- return -EINVAL;
if (!ipv6_accept_ra(idev))
return -EINVAL;
if (idev->cnf.rtr_solicits <= 0)
@@ -4320,11 +4318,23 @@ static int inet6_set_iftoken(struct inet6_dev *idev, struct in6_addr *token)
write_unlock_bh(&idev->lock);
- ipv6_get_lladdr(dev, &ll_addr, IFA_F_TENTATIVE | IFA_F_OPTIMISTIC);
- ndisc_send_rs(dev, &ll_addr, &in6addr_linklocal_allrouters);
+ if (!idev->dead && (idev->if_flags & IF_READY)) {
+ struct in6_addr ll_addr;
+
+ ipv6_get_lladdr(dev, &ll_addr, IFA_F_TENTATIVE |
+ IFA_F_OPTIMISTIC);
+
+ /* If we're not ready, then normal ifup will take care
+ * of this. Otherwise, we need to request our rs here.
+ */
+ ndisc_send_rs(dev, &ll_addr, &in6addr_linklocal_allrouters);
+ update_rs = true;
+ }
write_lock_bh(&idev->lock);
- idev->if_flags |= IF_RS_SENT;
+
+ if (update_rs)
+ idev->if_flags |= IF_RS_SENT;
/* Well, that's kinda nasty ... */
list_for_each_entry(ifp, &idev->addr_list, if_list) {