ipv6: Don't drop cache route entry unless timer actually expired. (54c1a859) · Commits · e / devices / android_kernel_oneplus_sm8150

This is ipv6 variant of the commit .. ("ipv4: Don't drop redirected route cache entry unless PTMU actually expired") by Guenter Roeck <guenter.roeck@ericsson.com>. Remove cache route entry in ipv6_negative_advice() only if the timer is expired. Signed-off-by:

YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:

David S. Miller <davem@davemloft.net>

net/ipv6/route.c

+9 −4

Original line number	Original line	Diff line number	Diff line
	@@ -890,12 +890,17 @@ static struct dst_entry ip6_negative_advice(struct dst_entry dst)
	struct rt6_info rt = (struct rt6_info ) dst;		struct rt6_info rt = (struct rt6_info ) dst;

	if (rt) {		if (rt) {
	if (rt->rt6i_flags & RTF_CACHE)		if (rt->rt6i_flags & RTF_CACHE) {
			if (rt6_check_expired(rt)) {
	ip6_del_rt(rt);		ip6_del_rt(rt);
	else		dst = NULL;
			}
			} else {
	dst_release(dst);		dst_release(dst);
			dst = NULL;
	}		}
	return NULL;		}
			return dst;
	}		}

	static void ip6_link_failure(struct sk_buff *skb)		static void ip6_link_failure(struct sk_buff *skb)