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-rw-r--r--net/ipv6/ndisc.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 1ba42bd6557..44b4c87e5cc 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1151,10 +1151,6 @@ static void ndisc_router_discovery(struct sk_buff *skb)
skb->dev->name);
return;
}
- if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra) {
- in6_dev_put(in6_dev);
- return;
- }
if (!ndisc_parse_options(opt, optlen, &ndopts)) {
in6_dev_put(in6_dev);
@@ -1163,6 +1159,10 @@ static void ndisc_router_discovery(struct sk_buff *skb)
return;
}
+ /* skip route and link configuration on routers */
+ if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra)
+ goto skip_linkparms;
+
#ifdef CONFIG_IPV6_NDISC_NODETYPE
/* skip link-specific parameters from interior routers */
if (skb->ndisc_nodetype == NDISC_NODETYPE_NODEFAULT)
@@ -1283,9 +1283,7 @@ skip_defrtr:
}
}
-#ifdef CONFIG_IPV6_NDISC_NODETYPE
skip_linkparms:
-#endif
/*
* Process options.
@@ -1312,6 +1310,10 @@ skip_linkparms:
NEIGH_UPDATE_F_ISROUTER);
}
+ /* skip route and link configuration on routers */
+ if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra)
+ goto out;
+
#ifdef CONFIG_IPV6_ROUTE_INFO
if (in6_dev->cnf.accept_ra_rtr_pref && ndopts.nd_opts_ri) {
struct nd_opt_hdr *p;