diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 9058d59acd0a..7763b7f672fa 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3679,6 +3679,7 @@ static int addrconf_ifdown(struct net_device *dev, int how) struct inet6_ifaddr *ifa; LIST_HEAD(tmp_addr_list); bool keep_addr = false; + bool was_ready; int state, i; ASSERT_RTNL(); @@ -3744,7 +3745,10 @@ static int addrconf_ifdown(struct net_device *dev, int how) addrconf_del_rs_timer(idev); - /* Step 2: clear flags for stateless addrconf */ + /* Step 2: clear flags for stateless addrconf, repeated down + * detection + */ + was_ready = idev->if_flags & IF_READY; if (!how) idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY); @@ -3824,7 +3828,7 @@ static int addrconf_ifdown(struct net_device *dev, int how) if (how) { ipv6_ac_destroy_dev(idev); ipv6_mc_destroy_dev(idev); - } else { + } else if (was_ready) { ipv6_mc_down(idev); }