From 1f5e29ce7989eb75652774004b962ee1eb6e56ca Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 31 Jan 2017 16:51:37 -0800 Subject: [PATCH] net: ipv6: add NLM_F_APPEND in notifications when applicable IPv6 does not set the NLM_F_APPEND flag in notifications to signal that a NEWROUTE is an append versus a new route or a replaced one. Add the flag if the request has it. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/ip6_fib.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index ef5485204522..febde6c112bf 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -746,6 +746,9 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, u16 nlflags = NLM_F_EXCL; int err; + if (info->nlh && (info->nlh->nlmsg_flags & NLM_F_APPEND)) + nlflags |= NLM_F_APPEND; + ins = &fn->leaf; for (iter = fn->leaf; iter; iter = iter->dst.rt6_next) { -- 2.20.1