On 8/2/23 19:00, David Ahern wrote:

On 8/1/23 6:43 PM, thinker.li@gmail.com wrote:

quoted

diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index bac768d36cc1..3059e439817a 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c

@@ -1480,6 +1488,9 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
  			list_add(&rt->nh_list, &rt->nh->f6i_list);
  		__fib6_update_sernum_upto_root(rt, fib6_new_sernum(info->nl_net));
  		fib6_start_gc(info->nl_net, rt);
+
+		if (fib6_has_expires(rt))
+			hlist_add_head(&rt->gc_link, &table->tb6_gc_hlist);

This should go before the start_gc.

Agree