[PATCH net] ipv6: include NLM_F_REPLACE in route replace notifications

[Roopa Prabhu]

From: Roopa Prabhu <ro...@cumulusnetworks.com>

This patch adds NLM_F_REPLACE flag to ipv6 route replace notifications.
This makes nlm_flags in ipv6 replace notifications consistent
with ipv4.

Signed-off-by: Roopa Prabhu <ro...@cumulusnetworks.com>
---
Submitting this to net since it complements the other ipv6 replace fixes
in net

 include/net/ip6_fib.h | 3 ++-
 net/ipv6/ip6_fib.c    | 6 +++---
 net/ipv6/route.c      | 5 +++--
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 063d304..aaf9700 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -275,7 +275,8 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt,
             struct nl_info *info, struct mx6_config *mxc);
 int fib6_del(struct rt6_info *rt, struct nl_info *info);
 
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info);
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info,
+                    unsigned int flags);
 
 void fib6_run_gc(unsigned long expires, struct net *net, bool force);
 
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 418d982..90ff99b 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -846,7 +846,7 @@ add:
                *ins = rt;
                rt->rt6i_node = fn;
                atomic_inc(&rt->rt6i_ref);
-               inet6_rt_notify(RTM_NEWROUTE, rt, info);
+               inet6_rt_notify(RTM_NEWROUTE, rt, info, 0);
                info->nl_net->ipv6.rt6_stats->fib_rt_entries++;
 
                if (!(fn->fn_flags & RTN_RTINFO)) {
@@ -872,7 +872,7 @@ add:
                rt->rt6i_node = fn;
                rt->dst.rt6_next = iter->dst.rt6_next;
                atomic_inc(&rt->rt6i_ref);
-               inet6_rt_notify(RTM_NEWROUTE, rt, info);
+               inet6_rt_notify(RTM_NEWROUTE, rt, info, NLM_F_REPLACE);
                if (!(fn->fn_flags & RTN_RTINFO)) {
                        info->nl_net->ipv6.rt6_stats->fib_route_nodes++;
                        fn->fn_flags |= RTN_RTINFO;
@@ -1410,7 +1410,7 @@ static void fib6_del_route(struct fib6_node *fn, struct 
rt6_info **rtp,
 
        fib6_purge_rt(rt, fn, net);
 
-       inet6_rt_notify(RTM_DELROUTE, rt, info);
+       inet6_rt_notify(RTM_DELROUTE, rt, info, 0);
        rt6_release(rt);
 }
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 53617d7..783d416 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3303,7 +3303,8 @@ errout:
        return err;
 }
 
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info,
+                    unsigned int nlm_flags)
 {
        struct sk_buff *skb;
        struct net *net = info->nl_net;
@@ -3318,7 +3319,7 @@ void inet6_rt_notify(int event, struct rt6_info *rt, 
struct nl_info *info)
                goto errout;
 
        err = rt6_fill_node(net, skb, rt, NULL, NULL, 0,
-                               event, info->portid, seq, 0, 0, 0);
+                               event, info->portid, seq, 0, 0, nlm_flags);
        if (err < 0) {
                /* -EMSGSIZE implies BUG in rt6_nlmsg_size() */
                WARN_ON(err == -EMSGSIZE);
-- 
1.9.1

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