net/ipv6: Rename rt6_get_cookie_safe

rt6_get_cookie_safe takes a fib6_info and checks the sernum of
the node. Update the name to reflect its purpose.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 327a74cd..dd1481e 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -228,8 +228,8 @@ static inline bool fib6_check_expired(const struct fib6_info *f6i)
  * Return true if we can get cookie safely
  * Return false if not
  */
-static inline bool rt6_get_cookie_safe(const struct fib6_info *f6i,
-				       u32 *cookie)
+static inline bool fib6_get_cookie_safe(const struct fib6_info *f6i,
+					u32 *cookie)
 {
 	struct fib6_node *fn;
 	bool status = false;
@@ -254,7 +254,7 @@ static inline u32 rt6_get_cookie(const struct rt6_info *rt)
 
 	if (rt->rt6i_flags & RTF_PCPU ||
 	    (unlikely(!list_empty(&rt->rt6i_uncached)) && rt->from))
-		rt6_get_cookie_safe(rt->from, &cookie);
+		fib6_get_cookie_safe(rt->from, &cookie);
 
 	return cookie;
 }