ipv4: Make ip_call_ra_chain() return bool.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ip.h b/include/net/ip.h
index 775009f..b53d65f 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -388,7 +388,7 @@
 	return 1;
 }
 
-extern int	ip_call_ra_chain(struct sk_buff *skb);
+extern bool ip_call_ra_chain(struct sk_buff *skb);
 
 /*
  *	Functions provided by ip_fragment.c