ipv6 flowlabel: add __rcu annotations

Commit 18367681a10b (ipv6 flowlabel: Convert np->ipv6_fl_list to RCU.)
omitted proper __rcu annotations.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 64d12e7..988c9f2 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -217,7 +217,7 @@
 };
 
 struct ip6_flowlabel {
-	struct ip6_flowlabel	*next;
+	struct ip6_flowlabel __rcu *next;
 	__be32			label;
 	atomic_t		users;
 	struct in6_addr		dst;
@@ -238,9 +238,9 @@
 #define IPV6_FLOWLABEL_MASK	cpu_to_be32(0x000FFFFF)
 
 struct ipv6_fl_socklist {
-	struct ipv6_fl_socklist	*next;
-	struct ip6_flowlabel	*fl;
-	struct rcu_head		rcu;
+	struct ipv6_fl_socklist	__rcu	*next;
+	struct ip6_flowlabel		*fl;
+	struct rcu_head			rcu;
 };
 
 extern struct ip6_flowlabel	*fl6_sock_lookup(struct sock *sk, __be32 label);