* [PATCH net-next 09/11] ipv6: Do not depend on rt->n in ip6_dst_lookup_tail().
@ 2013-01-17 17:43 YOSHIFUJI Hideaki
0 siblings, 0 replies; only message in thread
From: YOSHIFUJI Hideaki @ 2013-01-17 17:43 UTC (permalink / raw)
To: davem, netdev; +Cc: yoshfuji, xiyou.wangcong
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
---
net/ipv6/ip6_output.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 9250c69..7c00edb 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -913,8 +913,12 @@ static int ip6_dst_lookup_tail(struct sock *sk,
* dst entry of the nexthop router
*/
rt = (struct rt6_info *) *dst;
- n = rt->n;
- if (n && !(n->nud_state & NUD_VALID)) {
+ rcu_read_lock_bh();
+ n = __ipv6_neigh_lookup_noref(rt->dst.dev, rt6_nexthop(rt, &fl6->daddr));
+ err = n && !(n->nud_state & NUD_VALID) ? -EINVAL : 0;
+ rcu_read_unlock_bh();
+
+ if (err) {
struct inet6_ifaddr *ifp;
struct flowi6 fl_gw6;
int redirect;
--
1.7.9.5
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2013-01-17 17:43 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-01-17 17:43 [PATCH net-next 09/11] ipv6: Do not depend on rt->n in ip6_dst_lookup_tail() YOSHIFUJI Hideaki
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).