ipv6: reuse rt6_need_strict

Move the whole rt6_need_strict as static inline into ip6_route.h,
so that it can be reused

Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 00e3f12cb2f9..3c3bb184eb8f 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -51,6 +51,11 @@ static inline unsigned int rt6_flags2srcprefs(int flags)
         return (flags >> 3) & 7;
 }
 
+static inline bool rt6_need_strict(const struct in6_addr *daddr)
+{
+        return ipv6_addr_type(daddr) &
+                (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
+}
 
 void ip6_route_input(struct sk_buff *skb);